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Thread: 1989 SC needs to run mid 12s

  1. #76
    Join Date
    Apr 2016
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    84
    Quote Originally Posted by David Neibert View Post
    Alan,

    Wondering if you are still planning to be at the Zip Tie drags in STL on Sept 16th. Planning to be there with my son and grandson.

    David
    Yes, I will be there. Stop by and dispense some much needed knowledge.

  2. #77
    Join Date
    Apr 2016
    Posts
    84
    I got knocked out in the fourth round of the Roadkill Zip Tie Drags $3,000 Hooptie Challenge in St. Louis this past weekend thanks to me red lighting. My most memorable match up was in the first round when the guy next to me was in a Green Grand Prix. He was giving us the full sandbag treatment in the staging lanes, saying he had no chance. Turned out he was spraying that thing and running 13s. He tried to spray me and had a nitrous explosion at the starting line. The full story is linked below, please note the mention of supercharged V6s:

    http://www.roadkill.com/roadkill-zip...and-galleries/

    Just to summarize, since my last outing we added 52 lb. GT500 injectors with no changes to the ECM, mass air meter or the fuel pressure. This was done so that we could change to E85. Thanks to a great deal on here, I also added an MP2 blower, MP inlet and 10% overdrive pulley to the blower. Once I sell the old blower and inlet, I should be into these parts for less than $150. Naturally this change pegged the stock boost gauge so I have no idea how much boost it is now making.

    When we loaded the car for the race we knocked the factory fuel lines loose from the passenger side rocker area and planned to zip tie them up once we got to the track. Once at the track, my partner put the ties on a little tight and restricted the return line. While waiting for my first run in the staging lanes I noticed that the fuel pressure was stuck at 65 psi. We couldn't fix the problem right there in the lanes so I made the pass anyway. I could tell the car was significantly faster at first but as I got to mid track the fuel pump was dead heading against the line restriction and the AF ratio went into the 12s, she still went:

    60 ft 2.09
    330 ft 5.72
    1/8th 8.67
    mph 82.61 mph
    1000 ft 11.276
    1/4 13.45
    mph 103.86

    Once we fixed the fuel line issue, I made a pass and the AF ratio was going into the high 11s. I added a few psi of fuel pressure, putting it into the high 40s under boost and from then on it maintained an AF ratio in the 10s for the entire run on each pass for the rest of the day. Considering my sensor is on the gas scale, I thought that was good enough. Also, on the E85 the car would barely get warm, the only time it came up to the normal zone on the factory temp gauge was after two back to back hot laps. In short, E85 is fantastic stuff in this car. Best pass of the day was a 13.06 but I appear to be missing that timeslip (will post it when I find it). Second best was:

    60 ft 1.906
    330 ft 5.533
    1/8th 8.482
    mph 84.08 mph
    1000 ft 11.022
    1/4 13.179
    mph 104.58
    Last edited by Broncojohnny; 09-21-2017 at 10:35 AM.

  3. #78
    Join Date
    Apr 2002
    Location
    Greenville, IN
    Posts
    4,251
    Very cool man.
    Matt Haub
    Shootouts: '09 SS 1st | '10 Mod1 2nd | '11 Bracket 3rd | '12 Bracket 1st | 2013 | '14 Bracket 3rd | 2015 | '16 Bracket 1st & Mod2 2nd | 2017 |
    Black '89 5spd - 281K miles, MPx, E85, Alky-Inj RWHP: ? RWTQ: ? Best 1/4mi:12.521, MPH:107.23mph
    35th Anniversary Auto 46k miles | Red '93 Auto 186k miles
    My Garage

  4. #79
    Join Date
    Apr 2002
    Location
    Home of the Whopper
    Posts
    3,415
    ....Nice job!

  5. #80
    Join Date
    Dec 2002
    Location
    Wintersville, OH
    Posts
    4,072
    This is awesome! Congrats
    Making woosh sounds since 2010!

  6. #81
    Join Date
    Nov 2016
    Location
    PNW
    Posts
    231
    Well Done!!
    Creighton

  7. #82
    Join Date
    Aug 2005
    Location
    Paoli Indiana
    Posts
    4,544
    Quote Originally Posted by Micahdogg View Post
    ....Nice job!



    Micah still lives???
    93 SC Red Auto 111k
    2013 Shootout Bracket ET First Place
    2015 Shootout Car Show Honerable Mention
    2016 Shootout Mod-1 First Place
    4.2, 2.3 Whipple, 3.73s AOD
    307rwhp 12.70@107.2 (MPX)
    395rwhp Whipple 11.741@117.5mph

  8. #83
    Join Date
    Apr 2016
    Posts
    84
    Found my last time slip. This was with a little higher launch rpm. I reckon it was moving pretty good:

    60 ft 1.861
    330 ft 5.43
    1/8th 8.358
    mph 84.46 mph
    1000 ft 10.89
    1/4 13.05
    mph 104.19

  9. #84
    Join Date
    Apr 2016
    Posts
    84
    We took her to the 22nd annual Buick versus Ford race at Thunder Valley Raceway Park in Noble, OK on November 4th. This is a team event where every car qualifies and then gets paired up with a qualifier from the rival team that holds the same spot in the ladder of qualifying times for a single elimination run on a pro tree. Fastest races fastest, second fastest races second fastest, etc. We had 68 cars on each team this year. This race has been going on since the mid 1990s and started out as Mustang versus Buick Grand National event and in years past we have had over 100 cars on each side. In recent years the rules have changed to allow Chevrolet LS powered vehicles to race with the Buicks along with other obvious GM turbo products. Essentially this has become a Ford versus The World event. Because of the unique format, it is a great event that we look forward to every year and as you can imagine with a race that has been going on this long, the trash talk and rivalries are pretty intense even though there is little on the line beyond bragging rights and the chance to blow ~~~~ up.

    We got the car off the trailer and had no oil pressure. I have suspected the sending unit for some time now. We decided oil pressure or not we were going to "Send It". Luckily after a spin around the pits I got pressure on the gauge. We are going to replace the pump and get a real gauge over the winter. Beyond this issue she performed flawlessly.

    With the format of the race, it pays to sandbag a bit. Also, weather was bad with ambient temps in the mid 80s and a DA of 3,500 feet (In November no less!). My best qualifying pass was:

    60 ft 1.948
    330 ft 5.624
    1/8th 8.646
    mph 81.84 mph
    1000 ft 11.245
    1/4 13.509
    mph 95.37

    I got paired up with a very clean GMC Syclone that had 39,000 original miles for the final. My opponent said the truck was basically stock.

    I took him down with:
    T-bird Syclone
    RT .202 .289
    60 ft 1.854 2.015
    330 ft 5.435 5.612
    1/8th 8.415 8.628
    mph 82.75 81.48
    1000 ft 10.982 11.224
    1/4 13.175 13.447
    mph 102.48 100.84

    Another great victory for the junkyard bird. I just bought a TIG welder so I think we are going to convert to an Isuzu NPR intercooler over the winter along with adding the gauges. Next event is the Roadkill Zip Tie Drags in Tucson, AZ sometime in January.

  10. #85
    Join Date
    Oct 2009
    Posts
    129
    Quote Originally Posted by Broncojohnny View Post
    With the format of the race, it pays to sandbag a bit....
    My best qualifying pass was:

    1/4 13.509
    mph 95.37

    I got paired up with a very clean GMC Syclone ...
    I took him down with:
    ...
    1/4 13.175
    mph 102.48
    I don't think sandbagging is supposed to be so obvious!

    Sounds like a cool race!

  11. #86
    Join Date
    Jun 2015
    Location
    Palos Heights, IL (Chicago suburb)
    Posts
    58
    Quote Originally Posted by Broncojohnny View Post
    I got paired up with a very clean GMC Syclone that had 39,000 original miles for the final. My opponent said the truck was basically stock.

    I took him down with:
    T-bird Syclone
    RT .202 .289
    60 ft 1.854 2.015
    330 ft 5.435 5.612
    1/8th 8.415 8.628
    mph 82.75 81.48
    1000 ft 10.982 11.224
    1/4 13.175 13.447
    mph 102.48 100.84
    I've had a few stoplight races against Syclones in my '85 Mustang GT back in the mid 90s & they'd smoke me from 2nd gear on. They were really quick bone stock & those are impressive numbers for a 27 year old truck, assuming it really was "basically stock."

  12. #87
    Join Date
    Jan 2008
    Posts
    64
    cool thread and project!
    huge weight drop off the stock car.

    couple thoughts:
    1) you could probably drop another 20+ lbs by using regular thin-wall aluminum tubing+couplers for the intercooler vs the super-thick-and-heavy stock cast pipes. someone mentioned "quiet power", those pipes are like schedule 40 wall
    .........doesn't look stock but neither does a car without a hood...
    2) definitely throw a smaller pulley on there, for $80 or whatever they cost hard to beat.
    3) is there any easy/inexpensive way to advance the stock camshaft? maybe a different year timing set like on the pre/post smog engines of the 70s?
    4) if you have a usable/ready to run stock blower, whether 89-93 oval port or 94-95 rectangle port, i need one for a decent price, i can help you offset some of these other upgrades to stay on budget.

  13. #88
    Join Date
    Apr 2016
    Posts
    84
    Quote Originally Posted by speedingminivan View Post
    cool thread and project!
    huge weight drop off the stock car.

    couple thoughts:
    1) you could probably drop another 20+ lbs by using regular thin-wall aluminum tubing+couplers for the intercooler vs the super-thick-and-heavy stock cast pipes. someone mentioned "quiet power", those pipes are like schedule 40 wall
    .........doesn't look stock but neither does a car without a hood...
    2) definitely throw a smaller pulley on there, for $80 or whatever they cost hard to beat.
    3) is there any easy/inexpensive way to advance the stock camshaft? maybe a different year timing set like on the pre/post smog engines of the 70s?
    4) if you have a usable/ready to run stock blower, whether 89-93 oval port or 94-95 rectangle port, i need one for a decent price, i can help you offset some of these other upgrades to stay on budget.
    Part of what is driving the intercooler change is the reduction in weight. We'll also be ditching the stock radiator and the mounting frame for it that the stock intercooler attaches to. There is a lot of weight in all of those parts.

    The car already has a pulley and a ported blower on it so we are good there.

    I have two blowers on hand besides what is on the car. I have a 89-93 oval port that works fine but looks rough, the factory paint or powder coating is coming off. This blower was on the car until recently and functions well. I also have a very nice 94-95 blower that looks great, I don't think I really want to sell it but if someone offered great money for it I would part with it.

  14. #89
    Join Date
    Aug 2005
    Location
    Paoli Indiana
    Posts
    4,544
    Gtp coated rotor packs are a drop in upgrade 15$ at pull a part all day long.
    93 SC Red Auto 111k
    2013 Shootout Bracket ET First Place
    2015 Shootout Car Show Honerable Mention
    2016 Shootout Mod-1 First Place
    4.2, 2.3 Whipple, 3.73s AOD
    307rwhp 12.70@107.2 (MPX)
    395rwhp Whipple 11.741@117.5mph

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