Boosted C7 limiting itself at 65-70 MPH
Thread Starter
4th Gear
Joined: Dec 2024
Posts: 4
Likes: 0
Boosted C7 limiting itself at 65-70 MPH
I have a 2017 manual C7 grandsport that has a F1X-94 procharger, the car makes just under 1000hp on 93 and was tuned by LMR we were racing it and doing a mile shoot out. We got to the last run, just shifting into 4th and the car fell on its face. This was in the beginning of August and it won't let us do more than 65-70 no matter what gear and can't more than 2/3 throttle until it starts acting up. It sounds completely normal and isn't throwing any codes, fuel pressure is good, no intake sensors are going haywire. Just wondering if anyone has had a similar issue or has any ideas. Sorry if I'm not being clear enough in some places, first post😅. Thanks in advance.
Edit
I've been looking at something similar that happens to some Z06s; where they go into limp mode and cant put there foot into it, however they get a code. In our case it's permanent, it happened in a similar situation that had caused it from what I've read, WOT at a high speed. There wasn't a single code or sensor that read like there was something wrong with it, besides the MAF that completely drops out and reads 0 when it happens. Replaced MAF and it didn't change anything.
Edit
I've been looking at something similar that happens to some Z06s; where they go into limp mode and cant put there foot into it, however they get a code. In our case it's permanent, it happened in a similar situation that had caused it from what I've read, WOT at a high speed. There wasn't a single code or sensor that read like there was something wrong with it, besides the MAF that completely drops out and reads 0 when it happens. Replaced MAF and it didn't change anything.
Last edited by Qdog11525; Jan 1, 2025 at 07:37 PM.
