PDA

View Full Version : going to national trail raceway tomorrow



Kevin Leitem
10-29-2011, 03:26 PM
as it says. test and tune from noon till 5:00. i finally got mine figured out. so i am heading there.

ScrapSC
10-29-2011, 06:15 PM
Cool!! Post it up when ya get back... What was up anyway.

David Neibert
10-29-2011, 06:20 PM
Good luck Kevin...I'm looking forward to hearing the results.

David

Kevin Leitem
10-29-2011, 09:54 PM
Cool!! Post it up when ya get back... What was up anyway.

the early bhj balancers gid not have a mark at 26 after top dead center, but did have a mark at 90 after. and guess where i put the cam sensor?

ScrapSC
10-29-2011, 10:12 PM
One of those things that makes you scratch your head and then when you figure out what it is DOOOOHHHHHH (homer simpson). :)

rzimmerl
10-29-2011, 11:53 PM
Good luck should be a cold good day, it was sleeting when we were in Toledo this evening.

neverfastenough
10-30-2011, 12:10 AM
Im loaded up and ready. MSD works!

http://i7.photobucket.com/albums/y266/neverfastenough230/th_IMG_8071.jpg (http://s7.photobucket.com/albums/y266/neverfastenough230/?action=view&current=IMG_8071.mp4)

David Neibert
10-30-2011, 10:19 AM
Corey,

Are you racing your car this weekend too ?

David

neverfastenough
10-30-2011, 10:33 AM
Yup on the highway about 20min behind Kevin.

ricardoa1
10-30-2011, 11:03 AM
Thats great post up some results when you come back.

neverfastenough
10-30-2011, 08:01 PM
Well, not tooooooo shabby. Started the day with a 12.05, made some tweaks to the 2 step and backed that up with an 11.85 with a 1.99 60ft and 11.83 with a 1.88 60ft. Dropped the tires down to 10psi and did a few more passes with mistakes, rolled the tree early, almost put it in other lane once. Then they laid some prep and I went back at it. 1.70 60ft, missed second gear. Redo with a 1.68 60ft, missed second gear, then a 1.67 60ft and missed second gear. Leaving off 2 step harder on those passes was sucking the gas pedal out from under my foot, and I have a feeling it was causing me to miss second, or I was just tired. Really woulda loved to get a solid pass with a 1.6, I think it would have ran 11.40's. Best trap speed was 121 I think, Id have to check slips. Oh, and I didnt break anything:cool:

Kevin had a rough day. After running 20 sec 1/4's at 45 mph, maybe 46, he ended up using a tune he dug up from sometime before I was born and we thru 50% fuel at that and he let it rip. It wast a new best but impressive consisdering how the pass went. Ill let him tell it, he was behind the wheel.

Corey

ricardoa1
10-30-2011, 09:50 PM
Glad you getting that thing sorted out. What was the temperatures?

At 45-40 deg I could not get any traction.

Kevin Leitem
10-30-2011, 09:59 PM
as corey stated it was a rough day. could not get the car tuned in . finally got it richened up. running out of time to make a full pass i tuned it very rich (10.5 AFR) and took 4 degrees of timing out. figured play it safe. end result 10.56 at only 123. then found out the blower belt ended up coming together and rubbed against itself and ground it down to smooth. with all of that i was very excited with the time. but now the bad news. it also ate a rod bearing on that run . now my car keeps trying to tell me knock knock jokes. i didn't find any of them funny either!

i think with the cam sensor wrong it ended up wounding the bearings. as the timing was way wrong and everytime i changed oil i think more gas came out than oil.

David Neibert
10-30-2011, 11:40 PM
Corey,

Congrats on the improvment. Not breaking anything is always a relief.

Kevin,

Sounds like you are having more than your share of tuning problems this year. 10.56 @ 123 with the issues you are describing, sounds real impressive. Hope the spun rod bearing didn't mess up too much other stuff in the motor.

David

Kevin Leitem
10-31-2011, 07:16 AM
Glad you getting that thing sorted out. What was the temperatures?

At 45-40 deg I could not get any traction.

temp was supposed to be low 50 , but felt warmer. corey didn't like the traction. mine did good 1.41 60 foot

ricardoa1
10-31-2011, 08:35 AM
It was a street night for me so I could only muster 1.9 60fts. I guess maybe the street cars were tearing up the track with the street tires.

Hope you can get your car ready for next season. I hope the bearing failure is not bad and you can just slap on a set of bearings. Sucks none the less. Still badazz that you pull 10s with ease. Good job.

Kevin Leitem
10-31-2011, 12:14 PM
i was not exagerating when i said ground smooth! actually worse than i thought.

neverfastenough
10-31-2011, 12:16 PM
i was not exagerating when i said ground smooth! actually worse than i thought.

Nice!............

kenewagner
10-31-2011, 12:20 PM
i was not exagerating when i said ground smooth! actually worse than i thought.

Wow Kevin, you really can do things no one else can do:D

Ken

Ira R.
10-31-2011, 12:58 PM
Well, not tooooooo shabby. Started the day with a 12.05, made some tweaks to the 2 step and backed that up with an 11.85 with a 1.99 60ft and 11.83 with a 1.88 60ft. Dropped the tires down to 10psi and did a few more passes with mistakes, rolled the tree early, almost put it in other lane once. Then they laid some prep and I went back at it. 1.70 60ft, missed second gear. Redo with a 1.68 60ft, missed second gear, then a 1.67 60ft and missed second gear. Leaving off 2 step harder on those passes was sucking the gas pedal out from under my foot, and I have a feeling it was causing me to miss second, or I was just tired. Really woulda loved to get a solid pass with a 1.6, I think it would have ran 11.40's. Best trap speed was 121 I think, Id have to check slips. Oh, and I didnt break anything:cool:

Kevin had a rough day. After running 20 sec 1/4's at 45 mph, maybe 46, he ended up using a tune he dug up from sometime before I was born and we thru 50% fuel at that and he let it rip. It wast a new best but impressive consisdering how the pass went. Ill let him tell it, he was behind the wheel.

Corey

That's great stuff Corey! Shifting doesn't make it any easier but it sure keeps it interesting :D

Ira

Mike8675309
10-31-2011, 01:00 PM
Good to hear about the positive stuff, sorry to hear about the negative stuff. The complexity of making a reliable track car, essentially on your own, is staggering. Hope when the tear down is complete, the impact was minimal.

Kevin Leitem
10-31-2011, 01:00 PM
corey, in first gear at 5800 maf voltage was at 4.15 on the sct big air 5000 meter in a 4 inch tube. then it started to drop. i assume the belt was gone by then. at the end of the run it was at 3.98. wonder what the voltage would have been at 6700 on a good belt? seems like this new plenum an 95mm throttle body really improved on moving air.

neverfastenough
10-31-2011, 01:15 PM
corey, in first gear at 5800 maf voltage was at 4.15 on the sct big air 5000 meter in a 4 inch tube. then it started to drop. i assume the belt was gone by then. at the end of the run it was at 3.98. wonder what the voltage would have been at 6700 on a good belt? seems like this new plenum an 95mm throttle body really improved on moving air.

Kevin, I think you car is making really good power. Youre moving a good bit of air to hit that number. Once you fix this motor it should be some easy tweaking and youll be on your way to a new best pass.

Ira, Shifting was definitly intersting this time. I bolted on a B&M ripper shifter and put the car on the trailer. I had 0 seat time with it, and Im not quite sure I like it. It probably would have been best to stick with what I know. Hopefully i didnt kill 2nd gear syncro. I think my car has much more in it. Looking back at shift points and such, i can improve everywhere. I can leave with much more boost if i want to also. I was happy to see 1.6's, dont want to push my luck for lower than that, its nice leaving the track with axles in one piece.

Corey

seawalkersee
10-31-2011, 01:15 PM
Kind of confused as to why the thing is dumping that much fuel if you are in the run and start to lose voltage. Still a good run though...

SWS

Kevin Leitem
10-31-2011, 01:25 PM
Kind of confused as to why the thing is dumping that much fuel if you are in the run and start to lose voltage. Still a good run though...

SWS

the maf was losing voltage because the supercharger belt was gone, was not moving as much air so the maf read less air. if the maf was at 4.15 by 5800. then it would have gone higher at higher rpms. but since the belt was gone it was not able to.

mywhite89
10-31-2011, 05:31 PM
Kevin, do you put any miles on the car before you race it or is it wot pretty much as soon as you get it together?

chris

Kevin Leitem
10-31-2011, 06:12 PM
Kevin, do you put any miles on the car before you race it or is it wot pretty much as soon as you get it together?

chris

warm up, change oil, race.

mywhite89
11-01-2011, 09:09 AM
warm up, change oil, race.

gotcha, just wondering because I had the same luck this year.

seawalkersee
11-01-2011, 02:53 PM
I understand that part...but if you are losing voltage, was your AFR climbing (dropping in number)? I will try to spell out my question. If it is running, and as you start the run it starts to pull less air because the engine will not rev like it is supposed to, why is it dumping fuel? Is that one of the tunes that would not work before but now was the one you chose?

SWS

Kevin Leitem
11-01-2011, 05:38 PM
I understand that part...but if you are losing voltage, was your AFR climbing (dropping in number)? I will try to spell out my question. If it is running, and as you start the run it starts to pull less air because the engine will not rev like it is supposed to, why is it dumping fuel? Is that one of the tunes that would not work before but now was the one you chose?

SWS

the tune i started the day on was a tune dave wrote for me because i switched from a stock mass air meter to the sct big air meter. and went from a 3.5 intake to a 4 inch tube. well on that tune the car would not take fuel. so i switched back to my old tune that i have been running for years. it was too lean, because of the previous mentioned mods. i added 50% fuel, did a test pull. saw it was too rich, but left it alone to make a safe full pull. but to answer you question. the AFR stayed the same even with the losing voltage. the run started out around 11.5 ended at 11.5

Kevin Leitem
11-04-2011, 09:31 PM
well after checking all the rod bearings, and getting excited that the crank was not damaged. then i looked up (car on lift with k member removed) and saw at least 4 cam lobes all chewed up. looks like i am done for this year. can't wait till spring.

seawalkersee
11-05-2011, 12:33 AM
Yet with a slipping belt and that cam you could still pull 5800 rpm...NICE:D

SWS

Kevin Leitem
11-05-2011, 12:47 AM
Yet with a slipping belt and that cam you could still pull 5800 rpm...NICE:D

SWS

i shifted at 6300 on both gears

tyrsmkkyle
11-06-2011, 05:54 PM
Ouch.. it could be muuuch worse . I recently seen a bad lifter in an ls1 camaro tear up the block the oil pump and the crank and cam lifter ramping took chunks out of the cam.

David Neibert
11-07-2011, 12:47 PM
well after checking all the rod bearings, and getting excited that the crank was not damaged. then i looked up (car on lift with k member removed) and saw at least 4 cam lobes all chewed up. looks like i am done for this year. can't wait till spring.

Kevin,

I thought you were using solid roller link bar lifters in this motor. Curious what would cause damage to the cam lobes...oiling problem ?

David

1MTNCAT
11-07-2011, 03:04 PM
Sorry to hear that you hurt it! Hope you can have it back together and better for next season.

Kevin Leitem
11-07-2011, 06:46 PM
Kevin,

I thought you were using solid roller link bar lifters in this motor. Curious what would cause damage to the cam lobes...oiling problem ?

David

i think a roller tip locked up, then started the desruction with metal chunks circulating throughout