You should be fine leaving it in 4th all the way tho 129+ at 8000 rpms. Now us with stock 9 gears have to shift to 5th if we cant gont past 8k

Speed with stock final drive, 8000 RPM:

------------ 4th --- 5th --- 6th gear
VIII 5speed: 129.8 - 185.9 - n/a
IX GSR 5spd: 122.1 - 175.9 - n/a
IX MR 6spd.: 121.7 - 154.2 - 193.2

 

don't know about that righ now, sunday after the track car was fine, yesterday it was fine, today put the key in turn it and I hear a loud rattle inside the valve cover going to check it out.
Remember I got 80k hard

 

Hope all is well

 

Good day at the track for you, Victor. Congrats on the nice mph .

Your car is a beast. I hope all is well with the noise. See you tomorrow.

 

at 8k rpm i was banging the rev limiter in 4th and only trapped 125 too. i just took my new setup to the track too and got the exact same times as you. 1.9 60ft 11.9 at 125, im raising the limiter to 8500 now.

but good times one new setup, i feel ya on having to relearn how to launch the car with all the new power. im having the same trouble...good luck in the future

 

I took mine to 8500rpm all summer long with the HKS 280 on the stock springs/retainers and stock short block for what it's worth. However, I was doing a built shorty/head/springs/cam upgrades anyway so I wasn't scared

 

what size cams is he using? I very impressed with comp cams. I got a good deal on a set of 272/272's is why i went comp. Im still on the stock VIII turbo get 120-124 traps all the time.

 

280s comp cams