Early Rev limiter
Thread Starter
Intermediate
Joined: Mar 2020
Posts: 35
Likes: 14
From: Georgia
Early Rev limiter
1995 LT1 car. Second gear. If I push to the rev limiter on the street, it kicks in where I’d expect around 5800 rpm, 69 MPH.
however when I’m doing Autocross, the limiter/fuel cutoff usually happens around 5000 rpm 60 MPH.
Is this normal? Why does it happen? Why is it not hitting 5800 rpm before it starts cutting fuel?
however when I’m doing Autocross, the limiter/fuel cutoff usually happens around 5000 rpm 60 MPH.
Is this normal? Why does it happen? Why is it not hitting 5800 rpm before it starts cutting fuel?
Drifting
Joined: Aug 2009
Posts: 1,971
Likes: 243
Auto cross, lateral Gs, fuel sloshing away from the pickup perhaps? These cars are known for it when low in fuel. Mine will do it on the street under hard acceleration when low, even before the reserve is indicated.
how full is your tank when this happens?
how full is your tank when this happens?
Thread Starter
Intermediate
Joined: Mar 2020
Posts: 35
Likes: 14
From: Georgia
I think my clutch is due for a replacement. I’m wondering if when I mat the accelerator, maybe the engine is spooling up to 5800 rpm and the clutch starts slipping around 5000?
Drifting
Joined: Aug 2009
Posts: 1,971
Likes: 243
An eye on the tach should answer that question, but then I’d expect it to happen on the street too, not just auto x. Maybe a heat soak issue and opti or something else is calling it quits at high rpm? Datalog if you have the means, might be revealing.
Racer
Joined: Feb 2024
Posts: 267
Likes: 113
From: New York
