Really? Yea Ill get the serial # and call them.
Dont you think raising the rev limiter to 6400 will rape my motor? On stock valve springs and hurt the rods, espeically under boost. Cause Im not doing a shortblock untill Febuary of 2011 (tax return) And Im definatley not doing anything less than the MMR900 which is $2800. I wouldnt be able to buy that for a while or until tax return.
And just from watching your videos and numbers, and one other guy Ive seen with a Vortech GT made me go the Vortech route. lol
Thanks
I ran the stock valve springs to 6400rpm and the rev limiter set to 6600 rpm's for years with s292 cams at 515 rwhp. I did how ever have a forged shortblock (MMR 900).
I also had the rev limiter set at 6500 when the motor was completely stock and bounced off it many times accidenlty. Just make sure the a/f is rich(adequate fuel setup), the total timing is low, and the intake temps are low. It's all in the tune.
The 96-04 GT's bottom end is basically the same thing as a 02 and down Cobra's and Mach one's which rev to 7k. Excluding the aluminum block. They all used cast cranks, cast pistons, and rods, even some GT's the 99-00's had 8 bolt cranks. Mach 1's had a 4v motor and the autos still used a 6 bolt crank..
You if you're still making power at 6400rpm then run it there. Then set the rev limiter to 6600rpm and shift at 6400. That way if you go a little over you're not always bouncing of the limiter. But with stock cams 6200 rpm will be about where the power drops. No need to spin it higher than you make power.
The main things are:
Good fuel set up
Good sparkplugs
Proper Maf
Great Maintance
Qualified experienced tuner
Good tuning software
THE Tune!!