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13.9@112mph......something is not right

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Old Oct 29, 2000 | 04:52 PM
  #1  
John Millican's Avatar
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From: Savannah, GA
Car: 1997 Jeep Wrangler
Engine: 4.0L
Transmission: 5 speed
Axle/Gears: 8.8 rear, 4.56 gears, 4:1 transfer
13.9@112mph......something is not right

This is my very first run. I just got the engine broke in at 3000 miles and did my oil change before this run. I never ran it for time before now.
My trap speed seems like it should have a lower e.t. with it. 13.9 @ 112mph

I have the stock 15" Camaro Sport tires and they spin a long way. Should I let them spin or feather the gas to keep the spinning down????
See my mods below.
http://sethirdgen.org/octride.htm



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86 Camaro Sport
383 Speed-O-Motive Crate Engine, Trick Flow Heads, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Dynomax Cat-back, Serpentine belt setup.

http://64.176.105.239/octride.htm
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Old Oct 29, 2000 | 05:49 PM
  #2  
IROCZZ3's Avatar
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Joined: Aug 1999
Posts: 1,053
Likes: 3
From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Holy ****! Damn your car is a sleeper...I'd say throw on some drag radials and remove your front sway bar...that should help. What was your 60' times? I imagine they sucked...with a 112 trap speed you should solidly be in the mid 12s, if not better.

Again, cool car dude


------------------
1989 IROC-Z, ZZ3 shortblock with some bolt-ons.
13.20 @ 108.69, 2.2 60'
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Old Oct 29, 2000 | 05:59 PM
  #3  
AlkyIROC's Avatar
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Joined: Jul 1999
Posts: 17,268
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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
MPH is a direct result of HP. 112 should be good for low to mid 12's. ET is a result of traction. Find ways to reduce the amount of tire spin and ET's will drop to where they should be.

------------------
Stephen's racing page

87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress

Best results before the 383 blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car
91 454SS daily driver
95 Homebuilt Harley
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Old Oct 29, 2000 | 07:46 PM
  #4  
lock's Avatar
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Joined: Jul 1999
Posts: 768
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From: Concord, NC
Car: 86 IROC-Z
Engine: Superramed 355 w/ intercooled T72
Transmission: T56 -=- www.iroc-ss.com
You have me excited John... Im building a 383 now with similar setup... anyways 112 mph is very good. Based on the 13.9 it tells me you cannot launch good enough(terrible spin)... just for info, Ive run a 13.7 at only 99 mph... looks like you should be pushing upper 12's to me. what was your 60'?

------------------
Mark Lock
- 86 IROC-Z - My car, mods and ET's
- -= IROC Online =- - The site dedicated to the IROC-Z
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Old Oct 29, 2000 | 08:36 PM
  #5  
John Millican's Avatar
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From: Savannah, GA
Car: 1997 Jeep Wrangler
Engine: 4.0L
Transmission: 5 speed
Axle/Gears: 8.8 rear, 4.56 gears, 4:1 transfer
I don't have any 60' times, this was my very first time at a run and think I used to much gas off the start. I spun like h@ll and started to slip sideways with my posi.
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Old Oct 30, 2000 | 09:20 AM
  #6  
Rob P's Avatar
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Posts: 1,334
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From: Key West, Florida!
Car: 89RSconvtZZ4TPI
Engine: ZZ4TPI
Transmission: 700R4 TRIPP TRANNY
Wow! 112mph, thats flying thru the traps. I ran 13.81@98.96mph so you should be able to dip into the 12's with some traction. Sounds like an awesome ride!


------------------
Rob P
89RSconvtZZ4TPI
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!
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