Full exhaust and lose power?
I'm gonna hook up HP tuners to it later and take it out for a couple of hits on the road. I'm still real new to using that stuff. But I can at least monitor if its getting any knock. I upgraded it to the 99-02 knock sensors and wiring harness back last summer. Made sure I torqued them to 15ft/lbs. It never showed any knock last time I had it hooked up but I will recheck today. I should have my wideband hooked up by next weekend. Which will tell me a lot more. I've thought about a compression and leak down test on the motor but nothing indicates any problems with the engine. So gonna hold off for now on that.
I'm gonna hook up HP tuners to it later and take it out for a couple of hits on the road. I'm still real new to using that stuff. But I can at least monitor if its getting any knock. I upgraded it to the 99-02 knock sensors and wiring harness back last summer. Made sure I torqued them to 15ft/lbs. It never showed any knock last time I had it hooked up but I will recheck today. I should have my wideband hooked up by next weekend. Which will tell me a lot more. I've thought about a compression and leak down test on the motor but nothing indicates any problems with the engine. So gonna hold off for now on that.
TECH Fanatic
Joined: Jan 2017
Posts: 1,758
Likes: 442
its got to be in his head. No way cutting cats would change fuel tables that much if any at all And if it did change the long terms would've corrected by now. I would check for exhaust leaks especially at where the header seals up with the head, then run it I've been through many setups and have never noticed a difference. Whether it was a catback or duals
11 Second Club
Joined: Jan 2003
Posts: 1,000
Likes: 134
Both O2 sensors are brand new GM sensors. Its funny but after the mail-order tune I couldn't tell it made a bit of difference. Only thing I could tell from the tune is the transmission shifted harder. The car has never been able to spin the tires since the day I bought it. Even with the factory wheels and street tires it never would spin a lick. I had to powerbreak it to get the tires spinning. Its the same way now. But it has MT Drag radials on it. When I took it to the track it would not do a burnout in the box at the track. It would just push the entire car forward without even spinning the tires. I had to do my burnout in the water. Ha ha.
i think the bold tells all. My bone stock camaro would spin tires all the time. From a stock from a 25mph roll. For you not to be able to do a burn out something else is wrong and that’s why you are not seeing results from the change in exhaust. I think first thing first you take it to someone in person to tune it. Just for ***** and giggles too try cleaning your maf in the mean time with maf cleaner probably not going to help but it’s a place to start. Seriously considering getting someone that bows what they are doing to tune it in person. So the feel and hear the car and can watch it live
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