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new times with new setup

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Old 06-06-2004 | 01:23 PM
  #1  
sillyiroc's Avatar
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From: sagamore Ma.
Car: 89 Iroc
Engine: 350 vortec TPI
Transmission: 95 T56
new times with new setup

new best

1st run 13.52 @107.15
2.43 60'
1/8 8.91@ 84.86mph

2nd run 13.42 @104.61
2.31 60'
1/8 8.78 @ 84.11

the second run i shifted higher than the first at around 6000 rpm the first was at like 5700.

I thinks some of my problem is in my 3:27 gears with T56. I was running 245/50/16 Kumho. what do you guys think?
Old 06-06-2004 | 03:54 PM
  #2  
AlkyIROC's Avatar
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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
Poor 60' times. You lost HP on the second run probably from the higher shifts.

When I had a 383 stroker runing high 11's I was using 3.27 gear, TH350 tranny, 3800 stall converter and 27.3" tall tires.

Your tires are only 25.6" tall so going to a deeper gear could easily overpower them.

Get some slicks to help control that wheel spin and your ET should drop.
Old 06-06-2004 | 04:45 PM
  #3  
84firebird383's Avatar
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Joined: May 2004
Posts: 608
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From: Oshkosh wi
Car: 77 Firebird
Engine: 454
Transmission: th350
Axle/Gears: 4.10
3.27 gear, TH350 tranny, 3800 stall converter and 27.3" tall tires.
yuck that had to suck on the street. but i agree he definelty needs soem better tires to hook up. his 107 trap should be mid to hi 12s
Old 06-06-2004 | 05:00 PM
  #4  
AlkyIROC's Avatar
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25 Year Member
 
Joined: Jul 1999
Posts: 17,170
Likes: 138
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
Originally posted by 84firebird383
yuck that had to suck on the street.
I don't know. I've never driven my car on the street. When I bought the car from a friend he delivered it to my house. It was completely street legal at the time and I stripped it and made it into a race car without ever taking it onto the streets. I have no idea what it's like to drive a third gen on the streets. My daily driver is a 1991 454SS pickup.
Old 06-07-2004 | 01:55 AM
  #5  
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From: Prince George, BC, Canada
Car: 89 GTA
Engine: 5.7L Supercharged
Transmission: T-56
Axle/Gears: Moser 9" 3.70
Trust me it's your gears. I'am in the same boat with the 3.27's, they suck with are first gear, good thing I have a set of 4.10's sitting beside me waiting to go in

Hey what clutch setup are you using and how does it perform.
Old 06-07-2004 | 07:44 PM
  #6  
sillyiroc's Avatar
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From: sagamore Ma.
Car: 89 Iroc
Engine: 350 vortec TPI
Transmission: 95 T56
Im running the mcleon clutch with zz4 pressure plate. It works great has a nice firm pedal and grabs hard. I know what your saying about the 3:27 with the t56 first gear sux, driving in parking lots or stop and go traffic is horrible. I think some 3:73 would make my car rip. I need to run 12s soon.
Old 06-07-2004 | 11:00 PM
  #7  
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From: Prince George, BC, Canada
Car: 89 GTA
Engine: 5.7L Supercharged
Transmission: T-56
Axle/Gears: Moser 9" 3.70
zz4 pressure plate? No one has told me about that one, you sure you don't mean LT4 pressure plate?
Old 06-08-2004 | 06:26 AM
  #8  
sillyiroc's Avatar
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From: sagamore Ma.
Car: 89 Iroc
Engine: 350 vortec TPI
Transmission: 95 T56
Ya LT4 pressure plate sorry it was late when I wrote that. What are you running for a setup?
Old 06-08-2004 | 08:56 PM
  #9  
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From: Prince George, BC, Canada
Car: 89 GTA
Engine: 5.7L Supercharged
Transmission: T-56
Axle/Gears: Moser 9" 3.70
SPEC stage 2 kevlar crap, I'am not happy with it at all. If you try to launch the car at 3-4 k and let the clutch slip tell you get moving the clutch will be done for the rest of the day. Even my cheapo clutch for my t-5 when I had that in there performed better then this piece of ****, and I cost 3X less.

Looking for a new setup, maybe a SPEC stage 3 but I'am not to sure anymore.

Last edited by Tony89GTA; 06-08-2004 at 08:58 PM.
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