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1990 iroc z times, Is this about right?

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Old 08-30-2008 | 12:55 PM
  #1  
karlisdad2005's Avatar
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Car: 1990 Iroc Z
Engine: TPI 350
Transmission: 700R4
Axle/Gears: Stock Posi 32?
1990 iroc z times, Is this about right?

i bought this car for 1500 dollars and it didnt run right i did a fuel pump that didnt fix it then new plugs cap rotor and 24# fuel injectors with the bbk afpr that finally fixed the problem seems to run strong trans shifts good and hard! anyways this was my first time to the track in about three years andmy first pass was a mess at 15.2 then second pass i got jumbled at the light and then had a good run and went 14.78 @ 96MPH i was happy with that and had to drive car home, so probly some room for improvement, but i was happy! Car is stock other than above mentioned

Last edited by karlisdad2005; 08-30-2008 at 12:59 PM.
Old 08-30-2008 | 01:52 PM
  #2  
avro206's Avatar
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From: Calgary
Car: 89 Formula
Engine: 350
Transmission: TH 700R4
Axle/Gears: 3.27
Re: 1990 iroc z times, Is this about right?

your mph seems very good....whats your 60 ft times?
Old 08-30-2008 | 02:02 PM
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From: boise, ID
Car: 91 B4C "police special service"
Engine: L98 494hp
Transmission: tko-600 on order
Axle/Gears: 3.23 true trac
Re: 1990 iroc z times, Is this about right?

That is a good time for a stock iroc. i've seen a lot in the 15's.
Old 08-30-2008 | 03:13 PM
  #4  
karlisdad2005's Avatar
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Car: 1990 Iroc Z
Engine: TPI 350
Transmission: 700R4
Axle/Gears: Stock Posi 32?
Re: 1990 iroc z times, Is this about right?

60' was not very good i had tree trouble.....r-t .280 60-2.297 330'-6.270 1/8-9.551@74.68 1000'-12.392 1/4-14.782@95.66
Old 08-30-2008 | 03:37 PM
  #5  
avro206's Avatar
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From: Calgary
Car: 89 Formula
Engine: 350
Transmission: TH 700R4
Axle/Gears: 3.27
Re: 1990 iroc z times, Is this about right?

Originally Posted by karlisdad2005
60' was not very good i had tree trouble.....r-t .280 60-2.297 330'-6.270 1/8-9.551@74.68 1000'-12.392 1/4-14.782@95.66

r/t does not matter in the ET if thats what your thinking.

Post your 60FT! Thats a better indicator of true ET.
Old 08-30-2008 | 05:09 PM
  #6  
karlisdad2005's Avatar
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Car: 1990 Iroc Z
Engine: TPI 350
Transmission: 700R4
Axle/Gears: Stock Posi 32?
Re: 1990 iroc z times, Is this about right?

Originally Posted by avro206
r/t does not matter in the ET if thats what your thinking.

Post your 60FT! Thats a better indicator of true ET.
i posted 60' above it was 2.297 Please check out my other post about suspention mods for a better 60'.....its called "i need to use the senior members" HELP....and its in drag racing forum
Old 08-30-2008 | 06:28 PM
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: 1990 iroc z times, Is this about right?

lookin good ET can come down with more traction/better launch but the power is there. 96mph is what a good running L98 should beable to pull. With exhaust mods, you should touch 98-99.
Old 08-30-2008 | 10:34 PM
  #8  
karlisdad2005's Avatar
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Car: 1990 Iroc Z
Engine: TPI 350
Transmission: 700R4
Axle/Gears: Stock Posi 32?
Re: 1990 iroc z times, Is this about right?

Originally Posted by Orr89RocZ
lookin good ET can come down with more traction/better launch but the power is there. 96mph is what a good running L98 should beable to pull. With exhaust mods, you should touch 98-99.
ya i really need headers but when i ran it was manifolds into cats(stock) then nothing....is that a no no?
Old 08-30-2008 | 11:57 PM
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: 1990 iroc z times, Is this about right?

no thats fine, just loud and probly has a poor exhaust tone. I'd run some sort of muffler to get the tone. In fact, having it shorter in length may actually produce more power since exhaust tuning for power is based on flow and length of the pipe from the headers/manifolds. But that gets in depth and not necessary for this motor at this level.

if you dont need a cat, just gut it and run a nice 3" catback. you'll get a nice flowing system for power and good sound and not be obnoxious. I've had my car with just a cat and straight pipe for a little while, while i was building an exhaust or w/e at the time. it just wasnt good sounding in my opinion
Old 08-31-2008 | 12:22 AM
  #10  
karlisdad2005's Avatar
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Car: 1990 Iroc Z
Engine: TPI 350
Transmission: 700R4
Axle/Gears: Stock Posi 32?
Re: 1990 iroc z times, Is this about right?

Originally Posted by Orr89RocZ
no thats fine, just loud and probly has a poor exhaust tone. I'd run some sort of muffler to get the tone. In fact, having it shorter in length may actually produce more power since exhaust tuning for power is based on flow and length of the pipe from the headers/manifolds. But that gets in depth and not necessary for this motor at this level.

if you dont need a cat, just gut it and run a nice 3" catback. you'll get a nice flowing system for power and good sound and not be obnoxious. I've had my car with just a cat and straight pipe for a little while, while i was building an exhaust or w/e at the time. it just wasnt good sounding in my opinion
i totally agree dont like the sound either but i want to spend money on going fasterand i am not too picky, just waiting to find a deal on a magnaflow really!
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