I'm thinking that uping my redline in my 01 GSR would be a good idea. I'm going to get a drag III within the next few months and figure that uping the redline would allow me to stay in each lower gear longer thus accelerating faster. What parts internally would I need to up the redline to say 10K? Will my factory cams even produce power that high or will I need some aftermarket cams as well? Thanks guys!!

 

I wont get into the theory that is messed up below but you need head work, springs, retainers, a chip for the meantime to give you fuel and timing above stock redline. I would forget about cams for the meantime as you are going turbo. might as well get the head P&P'd while its out with some nice SS valves. I would also look into a new timing belt just to be safe. Ferrea Crower Webcams all make quality parts.

 

stay away from Web, they're regrinds.. stock cams peak at 7600 (gsr) you are gonna need cams (i've heard toda b's like boost) that will make power that high

 

i thought with a turbo you'd prefer to have low compression

 

no stick with stock cams. I read that aftermarket cams are to aggressive and will overlap on the boost so stick w/ stock gsr cams IMHO

 

If you want to rev past redline, the cheapest thing to do would be to get a new ECU.

 

Cheapest but not smartest. You need valvesprings and retainers. The factory cams will NOT make power up that high.


[Modified by B2FiNiTY, 2:35 PM 2/26/2002]

 

With a turbo he will.

 

Well of course. That's the only way to raise your rev limit.

He's asking what is needed internally. That mentioned already: higher rate valve springs and stronger retainers. Crower makes a good set and the price isn't that bad. Unfortunately, I've been hearing some bad things about Crower, so I dunno. I've had no problems with my setup at all. ::knocks on wood::

 

as if revving to 10 grand wasn't hard enough on your engine, you want to be boosting at 10 grand too.. if you look at the old importracing.org archives on endyn's website, they talk about piston speed vs. RPM. if you dig in a little you'll read that at 8000 RPM there's about 3 tons of pressure on the connecting rod..

that being said, if you're going to boost at 10 grand, it wouldn't hurt to swap out your old rods for stronger ones. and that being said, if you're going to swap out the rods, might as well put in new slugs for lower compression while the engine is apart

 

lots of $$$$$

 

send your ECU to JET....

 

wat u need the most is synthetic oil, good oil, always need an oil change

 

here's a few quick smart things to do to ensure a good, safe, effective way of a 10k redline ( w/ boost )

A. ECU ( mugen race ecu has no rev limit )

B. V-afc ( or S-afc ) -- you can set your redline and idle and more jazz...

C. Stoichometer ( having a turbo car means keeping it running great, grab a friend, a saturday night, and a lot of open highway and set your fuel all throughout your powerband so that your stoich. make sure yer not runnin in ' the danger zone ' )

C. ITR/CTR cams. they are oem so reliable, yet still make power. a friend of mine ( john the mailman ) made 50 whp increase at 5700rpms on ctr cams w/ a b20/b17a turbo. how do you like dem apples?

D. Make sure you have big enough injectors, fuel pump and other associated fuel compents, you will need it

E. Valvesprings and retainers are a sure way of protecting your head from floating a valve, i dont know how high crowers go, i'd say go crower, skunk2, or any brand you can find going that high. expect to pay around $500 or so for these.

F. if you really wanna do it right, dive into the block and yank those pistons. sell em on ebay, and look into getting some lower compression pistsons. 8.8:1 if yer gonna be a boost a holic, but i dont know how healthy pistons are to 10k.

this is just a guide! I doubt you can rev yer turbod gsr daily to 10k and not have problems! Before going out there and revving it up, hop on a dyno( if you do get this stuff..i'd definatley suggest most of it either way, stock valvepsrings are ok to 8500 ) and see if you can even make power that high...redline is not just where the motor hurts, but a combination of reliability, power, gas milage, and just overal satisfaction of the engine. be safe, and be fast. HTH.