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Old Sep 17, 2003 | 01:37 PM
  #1  
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From: Indianapolis, IN
Car: 1986 IROC
Engine: 400 SBC bored .060
Transmission: Tremec TKO
Get this time

I just got back from the strip and was actually impressed with my car for once. I ran 13.4 with a 2.1 60' time that was terrible, I even let off 150' before the line. My track used to have a rule that if you ran under 13.0 you had to have a helmet, so I let off in hopes of running again. They changed the rule to 14.0 sec. Oh well, I am convinced that my car will run mid 12s with a good launch and staying in it. Just had to tell someone.
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Old Sep 17, 2003 | 01:42 PM
  #2  
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From: Indianapolis, IN
Car: 1986 IROC
Engine: 400 SBC bored .060
Transmission: Tremec TKO
Forgot to say why I thought it was a good time for my car. I have 3.08s and 245 junk cheep worn out tires. My car also has custom cut autocross springs and shocks. The car sits 3" lower than stock. I wonder what it would do with a drag setup, like slicks, springs, and 3.73s
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Old Sep 17, 2003 | 02:55 PM
  #3  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
NHRA has been 14.0 for several years. IHRA is 13.8 or 13.5, I believe. Some tracks require all racers to wear a helmet, regardless of time/speed.

Get a helmet. Unless you don't happen to have anything worth protecting to go inside it.
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Old Sep 17, 2003 | 04:23 PM
  #4  
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From: Indianapolis, IN
Car: 1986 IROC
Engine: 400 SBC bored .060
Transmission: Tremec TKO
Not really, but I do have several helmets from riding motorcycles. Just didn't figure on running so fast and needing one. My busa runs 9s but my car does not seem that fast.
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Old Sep 18, 2003 | 01:51 PM
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From: Salem, NH
Car: 1999 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23 10 Bolt
IHRA is 13.99 or better helmet required. they even have this new thing about a netrual/clutch safety switch. pain in the ***.
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Old Sep 18, 2003 | 02:06 PM
  #6  
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From: CT
Car: Mustang
Engine: Bolt Ons
Transmission: Stock
Axle/Gears: 3.73
Lets here the mod list. I want to hear what a low 13 second Fbody has. BTW very nice times!!!
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Old Sep 19, 2003 | 09:23 AM
  #7  
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From: Indianapolis, IN
Car: 1986 IROC
Engine: 400 SBC bored .060
Transmission: Tremec TKO
Alright here we go;

Motor;
400 small block 4 bolt .060 over
SIR 5.7 rods
Speed Pro 10.8 to 1s
Pro Action 220 intake heads
1.52 Magnum Roller rockers
Holley Street Avenger dual plane
Holley 800 dbl pumper
1 3/4" SLP Headers
3" Edlebrock catback w/ custom Flowmaster Muffler 53081
6 quart pan w/ windage tray and baffles
Accel cap and coil
Accel 9mm Wires
Accel shorty plugs
Custom grind cam from Lunati .579 lift 228 duration

Chassis;
Prothane bushings
Custom cut Intrax springs
9 bolt 3.08 disk posi
TKO 5 speed w/ mustang tailhousing
Centerforce dual friction clutch
Lightened flywheel 17 lbs
Lakewood bellhousing
Custom aluminum driveshaft
custom mounted torque arm
fully boxed suspension components
Prothane swaybar mounts

I'll send a picture as well. I really built the car to go around a corner like a *****, and it does. Let me know what you think.

Last edited by spodeboy; Mar 29, 2007 at 11:46 AM.
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Old Sep 19, 2003 | 11:02 AM
  #8  
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From: CT
Car: Mustang
Engine: Bolt Ons
Transmission: Stock
Axle/Gears: 3.73
I think it loos great and runs even better. Congrats on the times!!:hail:
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Old Sep 19, 2003 | 11:14 AM
  #9  
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From: Rochester Hills, MI
Car: '91 Firebird
Engine: 408 SBC
Transmission: T5
Looking at your specs, I agree that you should be WELL into the twelves. To be honest, I'd be upset if I had 220cc heads and I wasn't in the 11's. You definately need to change your rear gear ratio!
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Old Sep 19, 2003 | 07:49 PM
  #10  
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Originally posted by wingnut
Looking at your specs, I agree that you should be WELL into the twelves. To be honest, I'd be upset if I had 220cc heads and I wasn't in the 11's. You definately need to change your rear gear ratio!
That should be a mid 11 second car on a real tire with a turbo 350 and a 3000-3500'ish stall. What was your mph?
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Old Sep 19, 2003 | 09:21 PM
  #11  
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
With that much cam, you should have 4.10 gears in the diff to be able to use all the gears on the 1/4. You've built up everything else for performance but still have highway gears in the car.
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Old Sep 20, 2003 | 05:50 PM
  #12  
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Originally posted by Stephen 87 IROC
With that much cam, you should have 4.10 gears in the diff to be able to use all the gears on the 1/4. You've built up everything else for performance but still have highway gears in the car.
I agree, but you have to admit he would have a lot to gain going to a larger cam. I have a larger cam in my 350 with smaller heads, less compression and 58 less cubic inches.
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Old Sep 20, 2003 | 09:37 PM
  #13  
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
My old short rod 383 had a solid flat tappet cam with around .550 lift, ported camel back heads with large valves, 850DP, 1 5/8" headers and it ran 12.0@117 mph at altitude with 3.27 gears using 92 pump gas. I had brute force for hp but poor gearing for the combination to max out in the 1/4.

All the specs for my old engine are still on my web site.
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Old Sep 21, 2003 | 01:08 AM
  #14  
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From: Indianapolis, IN
Car: 1986 IROC
Engine: 400 SBC bored .060
Transmission: Tremec TKO
Yeah, I agree I could probably put it in the 10s with the right setup. I built it to go around a corner though. I do autocrossing, and it is very competitive. I use the 3.08s to keep tirespin to a minimum I have several roads around my house that have tons of turns, no access roads and lots of fast cars and bikes going around them. I have ran Vipers, Vettes (C5s), and some other really fast cars, one being a F50 that ate my lunch. But for anything less than godly, I can usually out run and out handle them. It is just leaving from a dead stop that my car has a problem with.

By the way my trap speed was 114 mph and I let off 150' before the line.
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Old Sep 21, 2003 | 07:20 PM
  #15  
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From: Danville, IN
Car: 1991 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: Strange 12 Bolt, 3.42
Congrats on the Nice times. I'm assuming you were at IRP, I was there and I think I saw your car. My car didn't run too great that night lost 5mph and .7 sec from the last time I raced (about a year ago). I came home and checked my timing to find out it was about 6 degress lower than it should be.....not sure how that happened. Distributer must have gotten loose and moved.
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Old Sep 22, 2003 | 09:16 AM
  #16  
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From: Indianapolis, IN
Car: 1986 IROC
Engine: 400 SBC bored .060
Transmission: Tremec TKO
jbenge is your car grey with some ghost flames? If it is I definatly saw you run also. That car has about the coolest paint I have ever seen on our cars.
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Old Sep 22, 2003 | 04:59 PM
  #17  
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From: Danville, IN
Car: 1991 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: Strange 12 Bolt, 3.42
Thanks for the complements on the paint job, Yep thats my car with the ghost flames. Hopefully I'll see you at the track again this year.
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Old Sep 23, 2003 | 03:44 PM
  #18  
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From: Indianapolis
Car: Crown Vic PI
Id bet if you get some 410s, slicks you might just see 11s with that setup...Ill let you borrow my snowmobile helmet if you want to test it out ...I think Ive seen your car on 38th before, sittin real low...never knew you were packin that much punch under there glad I didnt try to race you yeah but IRP never let me run there, the whole deal with havin a valid liscence anyways good run and watch out for those trees on CountryClub road!!!!
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Old Sep 23, 2003 | 04:05 PM
  #19  
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From: Indianapolis, IN
Car: 87 Firebird Formula
Engine: 305 LG4
Transmission: Auto
Small world...

Are there any f-body clubs in the Indy area??

I'll be out at IRP tonight getting some baselines before I start modifying my 'bird...

Some great looking cars you have there. Mine will get there some day.
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Old Sep 23, 2003 | 05:23 PM
  #20  
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From: Danville, IN
Car: 1991 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: Strange 12 Bolt, 3.42
Keith_Indy,
There might be a firebird club I'm not sure. Theres the Central Indiana Camaro Club, I'm a member of that. Don't think anyone would care that you have a firebird. Theres a website for the club. www.indycamaro.com
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Old Sep 24, 2003 | 08:28 AM
  #21  
spodeboy's Avatar
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From: Indianapolis, IN
Car: 1986 IROC
Engine: 400 SBC bored .060
Transmission: Tremec TKO
I was wondering if there was a 3rd genner club here. Thanks for the info. Does anyone know who makes 3.73s for 9 bolts. I know 9-bolt.com has them but they don't for my car since it is a 2 series carrier. My only choice is buying a new carrier and new gears. Around $700. I am not about to do that, I'd rather have a 9" built for a couple of hundred more. Any suggestions?
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