Drag racing and street driving without a VSS.

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Jun 28, 2010 | 03:51 PM

firebirdriver89

Thread Starter

Junior Member

Joined: Sep 2008

Posts: 21

Likes: 0

From: Indiana

Car: 88 Firebird Formula 350

Engine: 355 mild cam stock TPI

Transmission: TH350

Axle/Gears: Moser 12 Bolt w/ 3:73's Eaton Posi

Drag racing and street driving without a VSS.

What if anything can happen if I drag race and drive my car on the street with out a VSS? I put a TH350 in my car when I put the 355 in it and haven't bought the speed sensor and I am wondering how bad I really need it.

I mostly just race it but I plan on driving it some. It doesn't really get raced much either for that matter.

Im interested in opinons and information.

Thanks

Jun 29, 2010 | 08:28 AM

vetteoz

Supreme Member

iTrader: (13)

Joined: Apr 2005

Posts: 7,736

Likes: 14

From: Not in Kansas anymore

Car: 82 Z28

Engine: 383 SP EFI/ 4150 TB

Transmission: T400

Axle/Gears: QP 9" 3.73

Re: Drag racing and street driving without a VSS.

VSS is used for speedo ,convertor lockup ( which you don't have ) and reducing revs while slowing down.
You may have the revs drop low when decelerating or coming to a stop because the computer does not know road speed when you lift off pedal and thinks car is idling
https://www.thirdgen.org/forums/post...365-post6.html
https://www.thirdgen.org/forums/post...740-post4.html
https://www.thirdgen.org/forums/post...152-post2.html

Last edited by vetteoz; Jun 29, 2010 at 08:34 AM.