RPM Question
 

Hey All. I have a 07 GT, K&N CAI, Flowmasters axle back, and i just put the 93 octane tune in. Was wondering what should my rpm be at. Currently i am at 6200 rpm. IS that a good spot, or could i go up? I dont want to go to high and create lag from the throttle correct? Help in any way.

RE: RPM Question
 

I assume you are talking about the rpm limiter. 6200 - 6500 should be good.

RE: RPM Question
 

YEA im talking about the limiter. Ive been trying different limits, and i think 6300 ran the best, but when i went to 6400, i felt a bit of a change (a lil lag)

RE: RPM Question
 

the peak hp for our stangs tops out at about 5900 if i remember correctly

RE: RPM Question
 

So if it peaks out at 5900 (which is what i read) how much higher should i set my rpm at? Going to high would just hurt the engine right? Also, should i change my throttle body? Since i have K&N CAI, should i switch the throttle body to match the intake i have?

RE: RPM Question
 

With my brenspeed 92octane tune mine shifts at 6500RPMwith WOT. I havnt changed anything as far as the tune goes....no need to change the TB, infact most would recommend against it.

RE: RPM Question
 

If the rpm's are too high, what signs would you look for anyway?

RE: RPM Question
 

look at a dyno, peak power is aroun 5800-5900 and continues pretty steady for awhile.....some shift at 6500 with no problems....some take it higher when racing but you dont need to shift that high at all, especially for normal driving or casual street running

If you are talking about the rev limiter then you can set it at 6600-6800...the purpose is to limit how high you go by accident....you are not suppose to be taking up there on purpose...shifting at 6250 is fine the rev limiter set at 6800 should not effect that point at all.

RE: RPM Question
 

Thanks, thats answers all my questions.

RE: RPM Question
 

my car pulls very hard up about 6500; through much experimentation, i found that a 6350-6400 shift point works best.

RE: RPM Question
 

If you go to the Diablo or SCT websites (depending on what you have) they have tech forums with certified tuners who can help you more.

RE: RPM Question
 

no, but you should switch to a new CAI with a larger housing for more power. such as the C&L racer which is 95mm

RE: RPM Question
 

I am having some work done on my car this week, and having the tuner leave the redline at the stock level just to be safe. I think the top end of the motor could take the additional RPM, but the bottom end may be a concern.

RE: RPM Question
 

the bottom isnt going to get damaged when you are only pushing 30-50 extra HP.......a couple hundred yes...