305-350 swap 1992 Camaro RS
#1
305-350 swap 1992 Camaro RS
Hey there, I have been having a lot of trouble through this process.. Took it to a shop and got a 350 jasper block and shop gave the car back to me untuned and it ran terrible. So went through and got 350 injectors, Esc, 350 performance chip, and knock sensor. Still experienced issues and ran the same. So I guess what I am wondering is, where do I find someone to tune this thing, because it runs the best on the 305 chip but still feels like it bogs at certain rpm. And I wasn’t expecting this car to be super powerful by any means. It still has the choked up stock heads, manifold and all smog equipment but I can’t even get the tires to break lose.
#3
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: 305-350 swap 1992 Camaro RS
Is the chip for the right ECM?. Do you have a performance cam? Lots of reasons it may not run right. A chip needs to be custom made for that particular engine. A "one size fits all performance chip" usually doesnt work out well with these TBI engines.
#4
Re: 305-350 swap 1992 Camaro RS
Also is there a specific serial number I need for the ESC or ECM?
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: 305-350 swap 1992 Camaro RS
You have to make sure the caprice chip was for the ...746 ECM. Some year ECMs werent the same for our cars. I have run the 350TBI Copcar chip on my engine and it ran ok.. You can try Tuned Performance and check with him, other than him some folks have used TBI Chips.com maybe?
#6
Re: 305-350 swap 1992 Camaro RS
Okay sounds good, let me get an order in on tuned performance and see if that works out, thanks for the info again, helps a lot when you can’t find a mechanic that knows something about these things haha
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