top speed of 305
Thread Starter
Junior Member
Joined: Dec 2006
Posts: 42
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From: oklahoma
Car: 1985
Engine: lg4
Transmission: 700r4
Axle/Gears: ????????
top speed of 305
what is the top speed of a 305
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it is a 1985 camaro
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it is a 1985 camaro
Last edited by woodstock16; Mar 29, 2007 at 10:21 PM. Reason: Automerged Doublepost
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Joined: May 2006
Posts: 25
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From: Calgary, Canada
Car: '89 Formula
Engine: 355 SBC, AFR 195s
Transmission: T-56 Swap
Axle/Gears: 7.5 Eaton LSD w 4.10s
Re: top speed of 305
My guess is that it is an L03, seeings how thats whats his profile says.
Supreme Member
iTrader: (1)
Joined: Feb 2000
Posts: 7,964
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Re: top speed of 305
I got my 86 Trans Am LG4 with carb and intake and T5 up to around 155 or so, using the tach and gear calculator. Took a loooooooooooooooooooooooooong time to get to 5K rpm in 5th.
My 88 Formula does 140+ on a nice long stretch.
70-130 run with stock motor and auto trans,
http://youtube.com/watch?v=BZIeHa-LwaE
My 88 Formula does 140+ on a nice long stretch.
70-130 run with stock motor and auto trans,
http://youtube.com/watch?v=BZIeHa-LwaE
Senior Member
Joined: Sep 2006
Posts: 747
Likes: 1
From: Reno, NV
Car: 1982 Z28 & 1967 RR/SS 396
Engine: ZZ383 & 375hp 396
Transmission: T56 & factory TH400
Axle/Gears: 9" ford & 12 bolt 4.10
Re: top speed of 305
Just because something might go that fast doesn't make it safe to go that fast.
If your going to do a top speed test. Do it in a controled enviorment. Use a helmet and be sure to fully check out your car first. Look at the brakes, suspension, u-joints as well as the condition of the tires.
Maybe even have a role bar or cage.
If your going to do a top speed test. Do it in a controled enviorment. Use a helmet and be sure to fully check out your car first. Look at the brakes, suspension, u-joints as well as the condition of the tires.
Maybe even have a role bar or cage.
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Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: top speed of 305
IIRC, GM literature says 138 for the L69.
JamesC
JamesC
Junior Member
Joined: Oct 2006
Posts: 82
Likes: 0
From: MI, in ohio for college
Car: 91 camaro T-Tops
Engine: L03
Transmission: Borg T5
Axle/Gears: 3.23
Re: top speed of 305
My L03 91's top speed is 115 (w/ "superchip"). I have a 3.23 rear end and a T5, Mine runs ~3100 or so RPM at the limiter. So there's plenty of gear left, but it's a L03, it runs out of nuts about 110. I hate to assume, but the car in question should have the same axle ratio. Auto or Manual should have different overdrive ratios, so I'm not sure what Rpm's you'll be spinning @ what speeds.
And I agree on the safety factor. Go for it, but don't be stupid about it.
Depending on your O/D gear should be ~140ish
And I agree on the safety factor. Go for it, but don't be stupid about it.
Depending on your O/D gear should be ~140ish
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