Originally Posted by
HoboShop
good luck alberto he hit it right on the head you will see a big difference in your motors power performance with the rb 2604, or the nova 2630. The 2630 will give you more topend but it will also burn more fuel. the 2604 will give you more bottom-end, and midrange and it is better on fuel. With both pipes run the short manifold, you engine has plenty of power but for that track i would go 17-22 59-56 that will give you a good balance of bottom and top-end. If you dont have those gears i would be more than happy to give them t you the next time i see you and i will give you my set-up sheet. I will post the set-up i use when i get home vince is the man the car is dailed in now
Originally Posted by
blount
I have that same motor and I was also at 301 sunday. First, thats the wrong pipe for that motor. I had that same pipe and it bogged my motor down when I was at ft myers, fl. Dont run it! For that motor You need either the RB-2604 pipe or, the nova 2630. Murnan mod's will have one or the other. Go with either 20k, 30k in the back. I had 30k, most like 20k. For gearing you need to go with a 17/23 or maybe depending on motor 17/22. You have the right motor, it's that pipe that hurting your top-end power on the back straight.
i changed the diff oil to 20k. im looking on ebay for the pipes thanks