TBI 350 Does Have a Rev Limiter

Rock Hard Concrete · Apr 24, 2018

Probably not the most relevant topic, but I thought Id let yall know that the tbi system does have a rev limiter at least on the 350. It hits at 5200 rpm, which is probably why no one knew, I must be the only one revving my poor toilet heads that high.

Biggershaft96 · Apr 24, 2018

Everything has a rev limiter.. sometimes its the computer, sometimes its metal

L31MaxExpress · Apr 25, 2018

Reverend Mike said:
Probably not the most relevant topic, but I thought Id let yall know that the tbi system does have a rev limiter at least on the 350. It hits at 5200 rpm, which is probably why no one knew, I must be the only one revving my poor toilet heads that high.

Some years have them, some do not. Typically if it has an electronically controlled transmission aka 4L60E or 4L80E it will. If it has a mechanical trans like a TH375 aka 3L80 or 700r4 it does not.

Rock Hard Concrete · Apr 25, 2018

L31MaxExpress said:
Some years have them, some do not. Typically if it has an electronically controlled transmission aka 4L60E or 4L80E it will. If it has a mechanical trans like a TH375 aka 3L80 or 700r4 it does not.

Yeah thats what doesnt make sense. Hmm......

someotherguy · Apr 25, 2018

The TBI's with electronic automatics got a PCM that could do the job; the spark control module is built into it. The earlier automatics and all the standards got a regular ECM, guessing it's not capable. Wouldn't know from personal experience though; never tried to grenade one just to see if it would happen...though I do recall blowing up one of my older TBI's racing it and manually shifting the 700R4. Next day it sounded like I had a miniature machine shop under the hood, and the oil was glitter paint.

Richard

DerekTheGreat · Apr 26, 2018

Yeah, at least mine doesn't sound really happy above 4,500 and it runs out of steam around 4,000 anyway.

evilunclegrimace · Apr 26, 2018

The camshaft and valve springs are going to be a factor in max rpm's on a SBC, especially a factory set up. Better valve springs, higher lift cam, stronger push rods , stronger rocker arms and cylinder heads/intake/fuel delevry that will flow enough air to make use of the additional lift will get you a lot of rpm's. SBC's are capable of 10,000 rpm"s IF the engine is properly speced and assembled.

pro17 · May 5, 2018

Open the ECM up and see if it has a custom chip. I've been tuning my car and truck for the last year and see RPM limiter values.

TBI 350 Does Have a Rev Limiter

Rock Hard Concrete

Supporting Member

Biggershaft96

Cant Getrite

L31MaxExpress

I'm Awesome

Rock Hard Concrete

Supporting Member

someotherguy

Truly Awesome

DerekTheGreat

Forum Regular

evilunclegrimace

Does not always play well with others

pro17

I'm Awesome

Similar threads

Latest posts

Staff online

Members online

Forum statistics

Share this page