Ok.. this guy was trying to tell me his stock rotating assembly, stock computer, lt4hotcamed car spins to 8k rpms.. I know he is lying, but doesn't the computer cut off fuel at 7k.. i am just looking for a way to make him shut up.

 

I believe the STOCK programming will cut the fuel at 5800RPM, or no more than 6100....

 

there aren't fuel or spark maps after 7K from what i have seen

 

AS said before the computer cuts fuel stock at 5750 or there abouts.

Then as also said, it is impossible to spin past 7k rpm with the stock computer. You would need to have converted to FAST or accel DFI to get the added fuel maps. The stock computer doesnt even have a spot where you can enter variables.

 

Thanks.. thats what i thought..

 

Hell man...have him come over and prove it ;-).

 

There are reported cases of guys getting past the 7k with the stock PCM (not 8000rpms though!). However, a personal friend of mine experienced complete shutdown (rpms -> 0) as soon as he tagged 7k.

With that in mind, whoever you're talking to is a tool.

Ryan

 

KABOOOOOOMM!!!!!!

 

That's the last time I saw a V8 rev that high..and it wasn't real. =)

 

Don't we all wish we could hit the nitrous button at 8.5k and bring it past 10k?

 

I frequently spin basically stock LT1 bottom ends to 7500 rpm without failure. I have a lot more cam than an LT4 and DFI though. When I was running my little L99 motor I ran it past 8000 rpm one time and it stayed together. A lot can be said for accurately balancing the rotating assembly.

Daren

 

Well the tunercat program will only go to 7000RPM in the MAP section.

 

Someone needs to hack the ECU and add some tables so you dont have to spend 2k on FAST or some other aftermarket ECU.

 

well....there was this one time....i was goin down some crazy endless highway and there were no cops...it was sweet.

i brought my Z to 11,400 rpm and topped it out at about 300mph...the car is/was totally bone stock of course....

then i woke up...

take it easy,
jake