hello all I have an 87 Camaro with the 2.8 mpfi. It stops revving at 5k. I want to eliminate the rev limiter so that I can use the full potential of what I built my motor for.

Is there anysort of chip or programmer that I can use to increase my rev limit and possibly add a little more power... Im not so good with the computer side of cars so any information is much appreciated.

Thanks in advance

 

You would need to buy a chip burner which is 85 bucks. If your really want just the rev limiter taken off. I have a burner, I could just burn your chip for you so you dont have to pay out for a burner for a one time deal.

and also a chip adapter package. You need this adapter and at least one chip. If you buy them seperate you may save a few bucks.
http://www.moates.net/gp1-package-gm....html?cPath=64

 

so how exactly does the chip burner work and what does the adapter do... if i buy a burner how many times does it usually take to get it right. i want to program it to have more power on top of no rev limit. is this what they call eprom programming

 

the 2.8 does not have a rev limiter @ 5k rpms it dosent even have a speed governer.
it does have a fuel cut but i bellive its at 6,600 rpms are u sure ur tach isnt way off?

 

at 5 k it slows climbing in rpm to almost nothing. and it slows down in climbing after about 4.2k seems like its slowing itself down. my trucks motor doesnt do that

 

You've run into the engine's built-in "wall of power". No computer tune is going to help the restrictive intake and heads. Even if you did port them to the max, I'd be willing to bet my stock small-port 3100 heads (untouched other than new valve seals and decarbonized) still flow better (and give me a redline with decent power at about 6K).

 

something else is wrong then its not a revlimiter check ur ignition timing almost sounds like its either not advancing or its extreamly retarded, both of which will caus ethe engine to not rev up or rev up very slowly

 

dont be betting on that mav i can get damn near 200 cfm out of irons +200 if they go on the cnc

 

this is depressing me alot. im a student and put all the money i make into my car and just did a complete rebuild and its still slow as could be. i dont know if better gearing would help or what but i have 2500 in motor alone and seem to be no where near ahead

 

a stock 2.8 will rev past 5k pretty easy, are u sure that u installed the timming chain correctly if the cam is off a few degrees it will also cause these symptoms



check the ignition timing first as that is the easiest thing to check, also make sure the cat is not clogged up

 

there is no cat its straight piped to the muffler and im pretty sure the timing chain is installed perfectly and the ignition timing seems to be set to 10* ... i'm going to check timing again on friday

 

make sur eits set to 10* witht he est bypass wire unplugged.

if u set the timing with the wire pluged in the timing will be severly retarded and that is ur issue

 

ok project89 I really appreciate the help I will retime it on friday and post the results here. just hope I can get her running like a top.

 

I cleaned up the thread, keep it on topic (technical help) or people will be taking vacations from TGO.

 

Dang...
Where did you spend that cash? I ask because some of your parts might not be playing well together....

 

i forgot to time it with the plug undone this time. timed it right now and it gets right up to 6.5-7k in a hurry thank you guys so much

 

no problem man its a pretty common mistake ppl make,