speed limiter?
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Registered User
Joined: Jul 2003
Posts: 2
From: illinois
speed limiter?
Just curious what the the speed limiter is set at on a 1990 RS 305 TBI? my speedo does not work and it shuts down, at what speed i do not know, any help would be appreciated.
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Joined: Jan 2003
Posts: 2,043
From: Mooresville, NC
Registered User
Joined: Jan 2001
Posts: 1,790
From: Florida. USA
Originally posted by mikey dragster
MY 91 TBI CUT'S OUT AT 117MPH AT 4,400RPM'S IN OD
OR AT 117MPH AT 6213RPM'S IN DRIVE.
BUT UNDER MY TBI I GOT A 350. OR RATHER HAD A 350 NOW ITS GOINT TO BE A 406.
MY 91 TBI CUT'S OUT AT 117MPH AT 4,400RPM'S IN OD
OR AT 117MPH AT 6213RPM'S IN DRIVE.
BUT UNDER MY TBI I GOT A 350. OR RATHER HAD A 350 NOW ITS GOINT TO BE A 406.
Registered User
Joined: Jul 2000
Posts: 1,880
From: Norfolk, VA. USA
Originally posted by Fast_B4C
I dont have a speed limiter and it says RS on my car??????
I dont have a speed limiter and it says RS on my car??????
It's probably 117 on both Chevy and Pontiac. Speedos aren't that accurate at high speeds anyways.
Registered User
Joined: Jan 2001
Posts: 212
From: Powder Springs, Ga. USA
Originally posted by Rippin92RS
Yup, 115 here check this out:
http://www.thirdgen.org/newdesign/tech/unlimited.shtml
-Rippin
Yup, 115 here check this out:
http://www.thirdgen.org/newdesign/tech/unlimited.shtml
-Rippin
Last edited by 92BLKL98; Jul 29, 2003 at 06:01 PM.
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Joined: Jan 2003
Posts: 2,043
From: Mooresville, NC
Originally posted by 92BLKL98
I am a big fan of thirdgen.org but to me the guy who wrote this as well as thirdgen.org dropped the ball on this one. Wouldn't it be a cleaner job to just remove the speed limiter in the memcal. If you have a buddy with a prom burner and the software it is very simple to do. The limit set at the factory on the cars with Z rated tires at an unobtainable 255 mph.
I am a big fan of thirdgen.org but to me the guy who wrote this as well as thirdgen.org dropped the ball on this one. Wouldn't it be a cleaner job to just remove the speed limiter in the memcal. If you have a buddy with a prom burner and the software it is very simple to do. The limit set at the factory on the cars with Z rated tires at an unobtainable 255 mph.
-Rippin
Registered User
Joined: Jul 2000
Posts: 1,880
From: Norfolk, VA. USA
It's easy to reprogram the TBI cars since the chip isn't in a large holder like the TPI cars and the later V6's.
I reprogrammed my friends 91 TBI Bird when he went from 2.73 gears to 3.42. He'd hit the limiter at 92mph since the ecm was still reading 115-117 due to the gears.
I reprogrammed my friends 91 TBI Bird when he went from 2.73 gears to 3.42. He'd hit the limiter at 92mph since the ecm was still reading 115-117 due to the gears.