we put an autometer tach in and its exactly the same... do u think a p28 is in it or maybe the cam timing is off since there r cam gears in there?

 

what did you expect?

 

You have a B16A2 with a P28? Please tell me it's chipped.

 

idk if its in there, i think is a stock ecu but i havent looked yet.. some1 todl me b4 2 getta new tach, so we put 1 in and its the same.. does any1 think its the timing or na?

 

addin a tach isnt goin to raise ur rev limiter

 

get it chipped

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20izzle &raquo;</TD></TR><TR><TD CLASS="quote">addin a tach isnt goin to raise ur rev limiter</TD></TR></TABLE>

I dont think he thought that, Someone probably told him to try a new tach to see if the original one was off.

Anyway. Check the simple stuff first. Make sure you have the correct ECU. That is simple stuff that you can check BEFORE you make post about stuff. Problem solving is key. That way when you ask the question, there is more background for people to go off. So check what ECU you have if you arent sure which one it is.

 

Pull the passenger side lower kick panel off and look to see what ecu you have in there. It should be a P2T and it's basically square. The P28 is rectangular and may be causing the rev limiter to kick in at 7900 rpm, if you have the correct ecu in there, then your tack(s) are off. It is NOT a timing issue in any way shape or form.

 

what does a 99 si supposed to redline at, I thought it was 8k. 7900 would be the same.

 

thanks, its not my car i gotta jdm teg, its my cousins and i dont see him much so im just workin with what im given, thanks alot guys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99cxrico &raquo;</TD></TR><TR><TD CLASS="quote">what does a 99 si supposed to redline at, I thought it was 8k. 7900 would be the same. </TD></TR></TABLE>

actually 8000-7900= 100...therefore there is a difference

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99cxrico &raquo;</TD></TR><TR><TD CLASS="quote">what does a 99 si supposed to redline at, I thought it was 8k. 7900 would be the same. </TD></TR></TABLE>

They redline at 8k and hit the rev limiter at 8200 rpm

 

yah, i just wanted 2 make sure it wasnt anything big b4 i told him 2 take out his ecu, any1 sellin a b16 head?

 

well considering the engine stops making power long before 7900 i really wouldnt complain, you are only making the car slower by going that high.

 

hes got crower valvetrain, aem gears, aem cold air, dc headers, apexi exhaust... i think he might be able 2 go a lil higher the 7800...

 

cams?

also intake header exhaust and cam gears have nothing to do with RPM

 

any cels?

 

yeah 99 si is a 8200 rev limit.