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LB9 1/4 mile Times

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Old Mar 29, 2002 | 02:09 PM
  #1  
iroc_cragg's Avatar
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From: Calgary Ab Canada
LB9 1/4 mile Times

Hey

I have a 1985 IROC Z Camaro with a 305 LB9 TPI. The car is all stock except a ADS chip. So guys post your 1/4 mile times, and the mods that got u to that time. See if our 305s can keep up with the big bad 350s....or do we smoke em

http://camaroz28.cardomain.com/id/56424
Attached Thumbnails LB9 1/4 mile Times-iroc5small.jpg  
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Old Mar 29, 2002 | 04:24 PM
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From: long island
Car: 90 Formula, 02 ws6
Engine: 305 tpi, ls1
Transmission: 700r4, t-56
Axle/Gears: stock posi 2.73, 12 bolt with 4.11s
i keep up with 350s very well
i run a 14.86 at the track with only the mods listed below
i have not opened the motor
and i have no tracking cosidering my posi is shot
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Old Mar 29, 2002 | 06:00 PM
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88 WS6 TransAm GTA's Avatar
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From: Cherry Hill, NJ
Car: 92 Trans Am 'Vert
Engine: 305 TPI
Transmission: 5 Speed
Times and mods are in my sig, and were run on a shot clutch (slipping to hell) and 2 bad injectors. The runners havent even been lifted yet... With the new clutch and the injectors, Im hoping to hit 13.99. Well see in a few weeks hopefully.
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Old Mar 30, 2002 | 01:48 PM
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Hodge's Avatar
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From: Louisville, KY
Car: 1987 IROC-Z28
Engine: 383 Vortec - carb
Transmission: T56 - 6speed
14.808 with mods in sig.

I'm putting new fluid in my differential and racing it next weekend. Hopefully that'll help my Limited slip be less slip. I've had the car for 5 years and never changed it so who knows. I'll post new times next week.

Hodge
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Old Mar 30, 2002 | 02:46 PM
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From: Palm Bay, FL
Car: 2007 Corvette Z06
Engine: LS7
Transmission: 6 speed
Smoke those 350's

14.4 @ 96.8 mph....102,000 miles, 5 speed, 3.42 gears, edelbrock headers, cat, flowmaster muffler, homemade intake, siamesed base, SLP chip, homemade AFPR(51psi), Crane 2032 cam,(214/220), 1.6 RR, underdrive pullies. Desperately needs some tuning(custom chip).

Went 14.6 @ 96 mph with just chip/intake/exhaust
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Old Mar 30, 2002 | 04:13 PM
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rezinn's Avatar
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From: California
If your car is automatic a very large e/t reduction can be had from a higher stall torque converter. I ran 14.6 @ 96 with a 2.3 60 foot time. With 3.42 gears, suspension work, and a rebuilt trans I'm hoping to be well into the 13s on street tires.
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Old Mar 30, 2002 | 09:53 PM
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From: Glenbeulah, WI
Car: 1988 Firbird
Engine: 406
Transmission: T-56
Axle/Gears: 4.10
Times and mods are in my sig.
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Old Mar 30, 2002 | 10:57 PM
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From: Oaks,Pa
Car: 89 IROC
Engine: 350 HSR
Transmission: modified 700R4
Axle/Gears: 3.42
Mods & times in sig.BTW the run was on Pep Boys 245/50/ZR16's.Drag radials should put it in the 13's.
BD3
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Old Mar 31, 2002 | 02:52 AM
  #9  
90Iroc's Avatar
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From: Greenwood, IN USA
Car: 1990 Iroc/Z
Engine: LB9 305 TPI
Transmission: Borg Warner 5 speed
My times and all the stuff I've done are in my sig. Sorry about the length, it's a list copied from my web-page. My best 60 foot time (which was on my best run by the way) is a 2.204.

Last edited by 90Iroc; Mar 31, 2002 at 02:55 AM.
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Old Mar 31, 2002 | 12:28 PM
  #10  
iroc_cragg's Avatar
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From: Calgary Ab Canada
Hey

I have a 1985 IROC Z Camaro with a 305 TPI, and 3.42 gears. The car runs 15 flat at 89.3 mph, what do u think I will run with the following mods

- SLP headers
- SLP catback exhaust
- K&N filters
- Airfoils
- Custom Ram Air
- Transgo shift kit
- Corvette servo
- AFPR
- MSD 6A ignition
- high performance plugs and wires

Thanks
http://camaroz28.cardomain.com/id/56424
Attached Thumbnails LB9 1/4 mile Times-iroc5small.jpg  
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Old Mar 31, 2002 | 12:36 PM
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From: Palm Bay, FL
Car: 2007 Corvette Z06
Engine: LS7
Transmission: 6 speed
I'd say add a chip to that list and that would get you low 14's at about 96-98 mph.
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Old Mar 31, 2002 | 12:48 PM
  #12  
Shaun 90 Iroc's Avatar
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From: Broken Arrow, OK (Tulsa)
Car: 1990 Iroc-Z
Engine: 350 L31 Vortec
Transmission: 700R4
1990 Lb9 a4, 140,000 miles, w/ only these mods:
80 Series Flowmaster
160 thermostat
hypertech chip
8.8 mm wires
MSD 48,000 volt coil
splitfire plugs
airfoil
Stewart Water Pump
Jamex foam dirty filters
Slipping transmission
Running way rich
brittle and bald Radial T/a's
4th Run the car's ever made, 4th run i have ever made.
= 2.3 60 ft. 15.4 @ 88

I ran a 2.2 60ft, but the trans slipped from 3rd to 4th and i chugged to only a 16.2

Since then i have added k&n filters, i might run the car tuesday night.
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