Dyno results predictions ?

[David Neibert]

It's been a couple months since installing the longtube headers and larger exhaust system and I'm finally at at point that I'm ready to put it on the dyno and see if it makes any additional power. I've got the dyno reserved for 4:30 this afternoon and Rod is supposed to come along to video it, mainly so you guys can hear the new exhaust system.

Prior to the changes it usually pulled around 425 rwhp & 410 rwtq and the best it's done is 435 rwhp & 413 rwtq as shown on the chart below.

http://members.tccoa.com/dneibert/dyno%20435rwhp.jpg

Changes since this pull was made are as follows.

WAS: Kooks med length headers, no cats, 2.5" downpipes, 2.5" dual inlet by 3" single outlet Magnaflow resanotor, 3" single pipe to dual 2.5" Dynomax mufflers. Stock early style fuel tank and stock driveshaft. Road and dyno tuned by Dave Dalke.

IS: Kooks longtube headers w/3" collectors, no cats, dual 3" mandrel bent stainless Y into 3.5" inlet/outlet Maganaflow resonator, 3.5" single to near diff, they Y to dual 3" open chamber Magnaflow mufflers. Late model fuel tank and aluminum driveshaft. Tune adjusted long distance by Dave Dalke using data from scanner and input from me.

Pics of old and new exhaust in this thread.

http://www.sccoa.com/forums/showthread.php?t=95404&highlight=kooks+headers

Anyhow...I have no idea if it's going to add or lose power and thought it might be fun for people to make some educated guesses and see who gets the numbers closest to what it actually pulls this afternoon.

So post your guesses.

David

PS: If A/F ratio looks okay on motor, I'll also make a pull with about a 100 HP shot of nitrous.

[neverfastenough]

Cant wait to see the results David,I think it will make a nice difference since the long tubes messed with the tune so much, it had to be choaking it before. I guess 453rwhp and 468tq

Corey

[Ira R.]

Right out of the gate? I would say plus 25 rwhp for the exhaust alone. That's without any adjustments for A/F, timing or what have you.

Ira

[CurtisPaulfrey]

I'm going to say 448/430 and I don't even care what it does on the bottle :D but it should be 550+HP

are you losing a lot of power with your trans?

[doug93sc]

My guess (not educated) is 440 HP and 460 TQ

[Want2LearnTBIRD]

Dave,

Maybe i'm making this up, but didn't you say you sprouted a leak on the passenger side?

[SuperCharged91]

I say 450RWHP and 435 TQ

[David Neibert]

Dave,

Maybe i'm making this up, but didn't you say you sprouted a leak on the passenger side?

Yes...but it's not leaking enough to have an impact WOT performance. Just enough of a leak to be annoying. Plan to get that taken care of within the next couple weeks.

David

[ricardoa1]

15-20Rwhp more.

[David Neibert]

I'm going to say 448/430 and I don't even care what it does on the bottle :D but it should be 550+HP

are you losing a lot of power with your trans?


Curtis,

Most people believe that an automatic loses about 5% more power between the crank and the wheels than a manual transmission. Roughly 20% vs. 15%. Most people also believe that an automatic without a locked converter will lose an additional 5%. If those numbers are correct (not sure they are) then I'm losing about 25% between the crank and the wheels :eek:

David

[SuperCharged91]

I think its true that Autos have a larger loss then 5 speeds which is why i love my 5speed:D

[Want2LearnTBIRD]

I think its true that Autos have a larger loss then 5 speeds which is why i love my 5speed:D

Too bad humans can't shift better than computers... :rolleyes:

[CurtisPaulfrey]

Curtis,

Most people believe that an automatic loses about 5% more power between the crank and the wheels than a manual transmission. Roughly 20% vs. 15%. Most people also believe that an automatic without a locked converter will lose an additional 5%. If those numbers are correct (not sure they are) then I'm losing about 25% between the crank and the wheels :eek:

David

That sounds about right

Good luck, I hope to see some great numbers out of your SC, was it just me or did Dave not come to St Louis like we had planned last year. I don't know what my car should dyno but I don't want to try the bottle until its on a wide band......but I still have a long way to go.....and in the end my heads will hold me back

[David Neibert]

Too bad humans can't shift better than computers... :rolleyes:

Mine doesn't have a computer....:confused: maybe that's why I'm always short shifting or hitting the rev limiter.

David

[Want2LearnTBIRD]

Mine doesn't have a computer....:confused: maybe that's why I'm always short shifting or hitting the rev limiter.

David

lol I need to stop posting before I embarrass myself further :D:mad::rolleyes::eek::confused::o:(:p:confused:

[Micahdogg]

410 RWHP. It's about time you start going backwards, you've had it too good lately. :)

[bigpoppa822]

570 on the juice.

[VicRattlehead]

448hp 430tq

[Want2LearnTBIRD]

How long does dyno take? Will he be back soon?

[Ira R.]

How long does dyno take? Will he be back soon?

:D Easy there laddie. Remember the time zone difference. He will be back when he gets back :D

Ira

[rzimmerl]

good luck David.

Dyno usually takes about an hour, give the guy time to drive home.

[DamonSlowpokeBaumann]

Whats the word???

[Want2LearnTBIRD]

Whats the word???

Easy there laddie. Remember the time zone difference. He will be back when he gets back
flkasjdlfjsdlfalsdfjlasd

[rzimmerl]

My guess is.... it made some crazy numbers on the NOS bottle which resulted in more than ONE Bud Light :D

[racecougar]

I'll let David post up numbers, but here is a video:

http://i6.photobucket.com/albums/y207/racecougar/Car%20Vids/th_Neiberts91SC2-27-08.jpg (http://s6.photobucket.com/albums/y207/racecougar/Car%20Vids/?action=view&current=Neiberts91SC2-27-08.flv)

-Rod

[racecougar]

On a side note, my car managed to pick up 4 rwhp and 6 rwtq today, and it wasn't even at the dyno. We were going through the graphs for my car on the computer at the dyno, and found out that the numbers that I had thought the car made were lower than the real results. :D

-Rod

[SuperCharged91]

On a side note, my car managed to pick up 4 rwhp and 6 rwtq today, and it wasn't even at the dyno. We were going through the graphs for my car on the computer at the dyno, and found out that the numbers that I had thought the car made were lower than the real results. :D

-Rod
Lol nice work How much did that 4 hp 6 tq mod cost you:D

[racecougar]

Lol nice work How much did that 4 hp 6 tq mod cost you:D

One "hey, can I see my old runs on this computer?". :) Apparently the last time we went to the dyno, I didn't get the printout of the last (and best) pull.



Back on topic, I just wanted to mention that the video doesn't really do the exhaust justice. It sounds really good. The car was getting quite a bit of attention from the employees at the shop there.

-Rod

[SuperCharged91]

Damn out of my price range:(

[Want2LearnTBIRD]

Exhaust seems pretty quiet, but powerful none the less..

[TwoToneThunder]

the video isnt working for me????:mad: crappy computer


or is it doing that for everyone

[neverfastenough]

I thought it sounded great for a V6....sounds powerful.

-Corey

[95_XR7]

Any drone inside the car at all David?

[David Neibert]

Sorry for not posting sooner...had to watch American Idol :cool: Rod, thanks for coming along, bringing beer and for doing the video.

Well here it is.

http://members.tccoa.com/dneibert/dyno022708.jpg


Run #29 (blue) is the previous best (435 rwhp 413 rwtq)

Run #34 (green) is todays pull (427 rwhp 422 rwtq)

The 427 is pretty much the same as it usually pulls, so I don't really think it lost any power, just didn't gain any. Looks to be going a little lean on the top end, but I don't think it's enough to cause a loss of power, but it might be. Thinking I'm probably going to have to switch to the smaller blower pulley for more boost or just be happy with around 425 rwhp. BTW, No ice or motor cool down other than the time it took to strap it down. Didn't bring my test gauge, so I'm not sure how much boost it's making...was 20 pounds with old exhaust system.

I made one pull on nitrous but it wasn't very impressive since the bottle pressure was only around 800 psi and it shut itself off at around 5800 rpm for some unknown reason. Shooting flames out the exhaust when I let off the throttle was a new experince too:eek:

David

[fastsc92]

why such a rich ratio? The tip-in goes to 11.0 and the midrange is 11.3. I always get my tip in around 12.0 and run 12.1-12.2 flat out until 5k

[ricardoa1]

Sorry for not posting sooner...had to watch American Idol :cool:

Well here it is.

http://members.tccoa.com/dneibert/dyno022708.jpg


Run #29 (blue) is the previous best (435 rwhp 413 rwtq)

Run #34 (green) is todays pull (427 rwhp 422 rwtq)

The 427 is pretty much the same as it usually pulls, so I don't really think it lost any power, just didn't gain any. Looks to be going a little lean on the top end, but I don't think it's enough to cause a loss of power, but it might be. Thinking I'm probably going to have to switch to the smaller blower pulley for more boost or just be happy with around 425 rwhp. BTW, No ice or motor cool down other than the time it took to strap it down. Didn't bring my test gauge, so I'm not sure how much boost it's making...was 20 pounds with old exhaust system.

I made one pull on nitrous but it wasn't very impressive since the bottle pressure was only around 800 psi and it shut itself off at around 5800 rpm for some unknown reason. Shooting flames out the exhaust when I let off the throttle was a new experince too:eek:

David


At least you have a nice shinny exhaust, that sounds great. Still great #s. I think the tune might need some tweeking from that graph, but thats just my unexpert opinion.

[DamonSlowpokeBaumann]

I think youll pull more once you get it tuned correctly

[CMac89]

Agreed on the tuning. Do you know how much timing you are running? What was it before, if there was a change?

A better exhaust system will let you run more timing. I guess we'll see, in April.:)

P.S. The best sounding V6 SC around....PERIOD!!

[Ira R.]

I don't care what you think about the numbers. THAT is what a V6 should sound like! Love the new exhaust sound. And I'm sure the video doesn't do it justice.

I am surprised that the exhaust didn't make a difference. I know when I first swapped out my exhaust with new downtubes and resonator is added 25 rwhp. Is it possibe that we have reached a level of horsepower where we have surpassed the point at which there is significant enough diffences in the amount of back pressure caused by our exhaust to make a difference.

And could the same be said for minor changes in boost? Would that not explain why when you swapped out the two pullies last year the difference was insiginifcant?

Ira

[David Neibert]

why such a rich ratio? The tip-in goes to 11.0 and the midrange is 11.3. I always get my tip in around 12.0 and run 12.1-12.2 flat out until 5k

Beats me...I did another pull about 10 minutes after that one I posted with the fuel pump voltage increased 10% to try and richen up the top end a little. Tip in A/F ratio was about a full point leaner at 11.5 then gradually kept getting richer to about 5500 rpms (to 10.9) then started leaning out to about 11.8 at 6200 rpms.

Pulled 424.12 rwhp and 423.95 rwtq

David

[Kevin Leitem]

i am willing to bet that even though it did not pick up HP it will pick up in E.T.

[David Neibert]

I don't care what you think about the numbers. THAT is what a V6 should sound like! Love the new exhaust sound. And I'm sure the video doesn't do it justice.

I am surprised that the exhaust didn't make a difference. I know when I first swapped out my exhaust with new downtubes and resonator is added 25 rwhp. Is it possibe that we have reached a level of horsepower where we have surpassed the point at which there is significant enough diffences in the amount of back pressure caused by our exhaust to make a difference.

And could the same be said for minor changes in boost? Would that not explain why when you swapped out the two pullies last year the difference was insiginifcant?

Ira

Ira,

Thanks...I'm thinking the reason it didn't gain power with the smaller pulley at the shootout, was because it was on the knock sensor and pulling timing. I'm also thinking a reduction in timing along with an increase in boost will be the best way to squeeze a little more power out of this motor...then again I might outa leave that kind of thinking to the guy who tunes the car.

If nothing else it's louder :D

[CMac89]

i am willing to bet that even though it did not pick up HP it will pick up in E.T.

Very true. What may help with HP, doesn't mean it will accelerate the car, and vice versa. Dyno's don't exactly tell you acceleration rates.

[Ira R.]

fwiw... I have to agree with Kevin. Seemingly minor changes such as this don't always show up in a measurable power change, but can easily translate to some extra oomph at the track. I also think that's why you should stick to the pulley that makes the most boost.

Ira

[mywhite89]

Well it definitely threw your tune off, so it did do something for you. I see another 5-7 rwhp coming. Defintely didn't fix a big bottleneck in the system though. I would say, changing to a newer style tank is a waste of time for 95% of SC owners. Car sounds awesome and looks sweet. I would really like to know how much affect this had on your boost numbers
Chris

[David Neibert]

Any drone inside the car at all David?

Just a little more than my old setup at around 2200 rpms...at 2500-2800 cruising it actually pretty quiet. As you can hear from the video, it gets much louder when you get into the throttle hard.

David

[89XR7TD]

David,

Your car sounds awsome man!!!!
It's cool that Rod was there to video it also, big thumbs up!!!!!!

Tom

[doug93sc]

That sounds fantastic David!! I really had no idea a V6 could sound that aggressive.

[fastsc92]

kinda has the tone of a G35......I like it. I have a similar set-up but 2.5-3.5-2.5. Magnaflow res, dual borla xr-1's. Yours def. has more bite to it.

[Pokey]

Pulled 424.12 rwhp and 423.95 rwtq

David

Good lord... that is insane. I can see me dumping every last penny I have into my car. Or maybe just buy another one with the auto and keep my manual for the daily driver. :)

Glenn

[Pacman]

That is an awesome car!! love the sound!! wow! My flowmasters sound like rice. Maybe one day i can make that kind of power a big thumbs up to you

[XR7 Dave]

why such a rich ratio? The tip-in goes to 11.0 and the midrange is 11.3. I always get my tip in around 12.0 and run 12.1-12.2 flat out until 5k
As David said, the car is untuned at this time. It also appears that the car is out of fuel meaning that the boost-a-pump needs to be left on at all times (low setting). Sounds good David!

[David Neibert]

As David said, the car is untuned at this time. It also appears that the car is out of fuel meaning that the boost-a-pump needs to be left on at all times (low setting). Sounds good David!

Dave,

I'm planning to leave it on the 10% increased voltage setting....it's not enough to change fuel pressure at idle and part throttle but does seem to help supply more fuel at WOT above 5000 rpms.

The portion of the tune we have been working on long distance seems to be much improved. Cold starts are better, transitions from part throttle to idle are smoother, no stumbles going from part to full throttle and no CELs.

I'd like to try the smaller blower pulley again, but think I'll wait until you are here to adjust the tune as needed.

David

[kenewagner]

Nice job David, You difinitely have one of the top cars in this club and I think everyone would love to have there car look and perform like yours;) I bet Dave will squeeze some more at your next tune from it

Ken

[MagpoweredSC]

David,
Very impressive numbers. :cool: It will be hard to tell any gains without Uncle Dave there to tune it.

BTW, what was your boost on the pulls, I noticed you are thinkin of more OD on the blower.

[al35thsc]

Looking good, David. Is that on pump gas?

[Micahdogg]

That thing is consistant. Your next step should be to sell your FMIC to Doug, then buy a billet lower intake with liquid IC.

[KwikGSeX]

What kind of fuel setup is in the car? I wonder if the effect the larger exhaust you have on there will show as you decrease in pulley size (ie: less air backing up into the cylinders)

Regardless of which the car sounds mighty impressive and the numbers are not that bad considering there is no REAL tune in the car.. Dave sounds like your ~~~ needs to get to where David is and retune the car with more boost!!

[David Neibert]

David,
Very impressive numbers. :cool: It will be hard to tell any gains without Uncle Dave there to tune it.

BTW, what was your boost on the pulls, I noticed you are thinkin of more OD on the blower.

I don't know how much boost it was making, because I didn't bother to hook up the test gauge. It was making 20 pounds with the old exhaust and from how the dyno chart looks it probably didn't drop much if any.

David

PS: I'm Uncle Dave...Dave Dalke is Sparky

[David Neibert]

Looking good, David. Is that on pump gas?

Al,

Yes...93 octane with a single nozzel Snow meth injection system using washer fluid and heet to get around 50/50 water meth mix.

David

[Toms-SC]

Sounds badass

[KwikGSeX]

Al,

Yes...93 octane with a single nozzel Snow meth injection system using washer fluid and heet to get around 50/50 water meth mix.

David

I wonder what she'll do with some straight C16 in her..

[David Neibert]

What kind of fuel setup is in the car? I wonder if the effect the larger exhaust you have on there will show as you decrease in pulley size (ie: less air backing up into the cylinders)

Regardless of which the car sounds mighty impressive and the numbers are not that bad considering there is no REAL tune in the car.. Dave sounds like your ~~~ needs to get to where David is and retune the car with more boost!!

Dennis,

I'm using a 255 lph high pressure pump (in tank) with a 6 an supply line, set of billet rails, remote mounted Aeromotive adjustable regulator, 60# injectors and a KB Boost a pump. Fuel return line is stock.

Plan to tune it for about 3 more pounds of boost when Dave is in town this spring. Until then I'm not doing anything to the motor except fixing the small exhaust leak on the passenger side header.

David

[Nettlesd]

I'm disappointed, I figured Rod would do a singing intro to the video. :)

Great numbers David, you make me proud. I can't wait to drive it again. ;)

[David Neibert]

I wonder what she'll do with some straight C16 in her..

Dennis,

It would probably go slower unless I increase boost, timing and run some colder plugs. Car is driven 99% of the time on the street, so it's built and tuned for running on pump gas. This car is already fast enough for me.....besides that I've still got the other car for doing all that race gas high powered stuff.

David

[KwikGSeX]

Dennis,

It would probably go slower unless I increase boost, timing and run some colder plugs. Car is driven 99% of the time on the street, so it's built and tuned for running on pump gas. This car is already fast enough for me.....besides that I've still got the other car for doing all that race gas high powered stuff.

David

Wouldnt you like to see what she can do with more boost and timing tho just once? Take it to the shootout and try to get it to hook before the 330ft Give some people on here a run for their money.. :D

I think you need to either:

A.) Replace the 255 with a Supra inline pump
B.) Dual walbros
C.) Quit screwin around and get an A1000 that the 255 feeds to.. Plus upgrade the line to -8.. (This would be my plan of attack)

The blue car runs an Aeromotive Pro Series pump with a -8 feed to the factory fuel rail and -6 return to BBK FPR in stock location.. And 42lb injectors.. More than sufficient fuel for my needs :D

[David Neibert]

Wouldnt you like to see what she can do with more boost and timing tho just once? Take it to the shootout and try to get it to hook before the 330ft Give some people on here a run for their money.. :D

I think you need to either:

A.) Replace the 255 with a Supra inline pump
B.) Dual walbros
C.) Quit screwin around and get an A1000 that the 255 feeds to.. Plus upgrade the line to -8.. (This would be my plan of attack)

The blue car runs an Aeromotive Pro Series pump with a -8 feed to the factory fuel rail and -6 return to BBK FPR in stock location.. And 42lb injectors.. More than sufficient fuel for my needs :D

I know there are things I could do to make it faster, but most of them aren't something I'm interested in doing. I've already done what I wanted to do by getting into the 10s. Now I'm more concerned about making it look good and sound good while making decent power all the time.

Adding more power and racing the car means I'll be breaking it and wrenching on it more often. Having fresh white paint on a lowered car makes wrenching on it a real pain in the azz and something I'd rather avoid. If some new heads are ever produced, I'll be wanting to build another motor with a billet stroker crank, a little higher compression, one of those fancy billet intakes that Mike Tuck is making, bigger fuel system and a 2.3 Whipple with liquid IC.

At present....The black car is the one for doing all that go-faster stuff. It's not lowered, it's not freshly painted, it's built with all the right hardware to make lots of power, and it's much easier to work on.

David

[KwikGSeX]

At present....The black car is the one for doing all that go-faster stuff. It's not lowered, it's not freshly painted, it's built with all the right hardware to make lots of power, and it's much easier to work on.

David


And its a V8.. :D


Good luck with it anyhow David.. Id do the fuel system and such to see how close you can come to the 9's in that bad boy..

[Micahdogg]

Hey Dennis, why don't you do the fuel system and see how close you can get to the 9's :)

[95badbird]

Thats great.....good job to you.

[XR7 Dave]

David,

You'll need to invest in the MP tensioner springs if you want to run more boost.

[KwikGSeX]

Hey Dennis, why don't you do the fuel system and see how close you can get to the 9's :)


Been there, done that :eek:

[Melon]

Good video and nice numbers Dave :D Probably still a rocket on the street :D

(yes, I'm a little behind in this.... :eek:)

-Melon

[David Neibert]

David,

You'll need to invest in the MP tensioner springs if you want to run more boost.

Dave,

Why do you think I need the stronger tensioner springs ? It didn't have any problem making 23 pounds of boost all the way to 6200 rpms with the smaller pulley and shorter belt when I tried it last year.

It was about 15 rwhp stronger than the current pulley all the way up until about 5500 rpms, then it started getting spikey on the dyno graph and power began falling off like it was on the knock sensor.

David

[Ira R.]

It was about 15 rwhp stronger than the current pulley all the way up until about 5500 rpms, then it started getting spikey on the dyno graph and power began falling off like it was on the knock sensor.

David

Knock sensor or slipping belt??

Ira

[David Neibert]

Knock sensor or slipping belt??

Ira

Ira,

Dyno chart from Shootout (includes boost) shows the boost holding steady all the way until I got off the throttle at 6200 rpms. Chart with the spikes was from my local dyno a week before the shootout and didn't have as much smoothing as the one at the Shootout.

David

[Ira R.]

Ira,

Dyno chart from Shootout (includes boost) shows the boost holding steady all the way until I got off the throttle at 6200 rpms. Chart with the spikes was from my local dyno a week before the shootout and didn't have as much smoothing as the one at the Shootout.

David

......just a thought. Sometimes we forget about the real simple explanations. I guess you'll have to ask Dave why he thinks you will need it then.

Ira

[Micahdogg]

I guess you'll have to ask Dave why he thinks you will need it then. Ira

Post #74
Dave, Why do you think I need the stronger tensioner springs ?

[DamonSlowpokeBaumann]

The MP springs cant hurt as the stock sc springs are relatively weak

I think David has the right idea. Just work out whatever tubning issues he has and call it a day. No sence risking anything by adding additional timing for a few hp he cant feel or use on the street anyway. The exhaust the way I see it is a good think from all angles with only sound as a compramise. SOmething he seems to like at the moment.

An external nice pump setup is a good idea however. I had originally run twin bosch inline pumps on my turbo car that were quiet and never overheated. Many of the aftermarket race pumps really shouldnt be used for everyday driving tasks as they do overheat to an extent. See whats currently out there and go for it. Really isnt much else to do at this point

[S_Mazza]

It looks like the mixture got pretty rich right around the torque peak. Maybe you could pick up a few lbs-ft by tweaking that area of the curve. Then again, I wasn't there, so I don't know if it was knocking or what.

[Ira R.]

Post #74
Dave, Why do you think I need the stronger tensioner springs ?

Huh?? :eek: You expect me to read every post and remember what I've read too??!!:eek:

Ira :p

[David Neibert]

It looks like the mixture got pretty rich right around the torque peak. Maybe you could pick up a few lbs-ft by tweaking that area of the curve. Then again, I wasn't there, so I don't know if it was knocking or what.


The wide open throttle portion of the tune needs a little tweaking to smooth out the A/F ratio, but other than that, I think it's fine. With a 10% increase in fuel pump voltage (from KB boost-a-pump) the A/F ratio looked a lot better.

David

[92bird]

Dave,

Are you still running the EEC IV?

I'm considering going to a stand alone, mainly for drivability purposes.

I've talked to a few 5.0 mustang guys who swapped from the EEC IV w/SCT to a stand alone such as Megasquirt II and said once it was tuned, it was much easier to drive.

My SC has always had hard starts, crappy idle, and stumbling throttle transitions. And for some reason, no matter what I command, I can't get any leaner than about 10:1 at idle. Despite all efforts, the car gets about 7 mpg around town and very lucky to get 13 on the highway.

That's why I'm considering just yanking all the factory stuff and go with the MegaSquirt II.

Just a thought.

Jeramie

[David Neibert]

Dave,

Are you still running the EEC IV?

I'm considering going to a stand alone, mainly for drivability purposes.

I've talked to a few 5.0 mustang guys who swapped from the EEC IV w/SCT to a stand alone such as Megasquirt II and said once it was tuned, it was much easier to drive.

My SC has always had hard starts, crappy idle, and stumbling throttle transitions. And for some reason, no matter what I command, I can't get any leaner than about 10:1 at idle. Despite all efforts, the car gets about 7 mpg around town and very lucky to get 13 on the highway.

That's why I'm considering just yanking all the factory stuff and go with the MegaSquirt II.

Just a thought.

Jeramie


Jeramie,

I'm still using the stock computer and an SCT chip in the 91 and don't have any plans to go standalone. The 93 has been converted to a standalone (Fast XFI).

David

[mywhite89]

Dave, what kind of gas mileage do you get out of your 91 just cruising through town? I havent gotten any better then 12 or so. I havent tested it out on any highway trips, but I bet I can get close to 20.

Chris

[David Neibert]

Dave, what kind of gas mileage do you get out of your 91 just cruising through town? I havent gotten any better then 12 or so. I havent tested it out on any highway trips, but I bet I can get close to 20.

Chris

I think it gets right around 20 mpg with normal mix of driving.

David

[Kurt K]

I think it gets right around 20 mpg with normal mix of driving.

DavidI think you need to check again. With the non-lockup converter in my car, I only get around 16 mpg. I would think our mileage should be similar.

[Micahdogg]

I get about 20 mpg...only really observed on the highway.

[David Neibert]

I think you need to check again. With the non-lockup converter in my car, I only get around 16 mpg. I would think our mileage should be similar.

Need to change that broken odometer first.

David

[eli66048]

On a side note, my car managed to pick up 4 rwhp and 6 rwtq today, and it wasn't even at the dyno. We were going through the graphs for my car on the computer at the dyno, and found out that the numbers that I had thought the car made were lower than the real results. :D

-Rod

Maybe you parked real close to David's car and.....well you get the picture.

Danny

[David Neibert]

Maybe you parked real close to David's car and.....well you get the picture.

Danny

Danny,

Once Rod gets his liquid IC done he can easily increase the boost and make much more power than I am. I think he's only running around 4 pounds of boost now. Imagine what it will do with 15 pounds :eek:

David

[racecougar]

Danny,

Once Rod gets his liquid IC done he can easily increase the boost and make much more power than I am. I think he's only running around 4 pounds of boost now. Imagine what it will do with 15 pounds :eek:

David

I'd just like to make it look a little less embarrasing when you blow my doors off at the track like you always do. :)

-Rod

[CurtisPaulfrey]

Its nice to see projects start hitting the street BUT I'm at the track every tues/wed and I haven't seen a SC this year

I know I haven't been on much but I'm working on getting my SC running.....so when are we all getting a DD tune? :confused: I'm ready

[David Neibert]

Its nice to see projects start hitting the street BUT I'm at the track every tues/wed and I haven't seen a SC this year

I know I haven't been on much but I'm working on getting my SC running.....so when are we all getting a DD tune? :confused: I'm ready

Curtis,

A few of us were planning to go tonight, but the weather sucked.

Team David

[Micahdogg]

.....so when are we all getting a DD tune? :confused: I'm ready

You need money first.

[David Neibert]

Well it definitely threw your tune off, so it did do something for you. I see another 5-7 rwhp coming. Defintely didn't fix a big bottleneck in the system though. I would say, changing to a newer style tank is a waste of time for 95% of SC owners. Car sounds awesome and looks sweet. I would really like to know how much affect this had on your boost numbers
Chris

Chris,

Finally hooked up the test gauge yesterday....still makes the same 20 psi.

David

[Ira R.]

Chris,

Finally hooked up the test gauge yesterday....still makes the same 20 psi.

David

A nice safe number. :D

Ira

[mywhite89]

That figures.