Hello,
- what gear ratio first/second in the PG do you run. i take it second is 1:1? .
- what size rear rim and tire diameter and width. also, what bolt pattern is common? a buddy told me he runs 5x5?
- can i get away with stock third member or should i get alum one
- what spline axles
- what rear gear ratio is most common?
- what is better for shifter, i seen the Neal & Parks setup and it looks nice or use a standard shifter with solenoid for shifting
- do you need to run a drysump setup ? we run one in our cars and it made huge difference.
thank you
Dean
High gear on a PG is 1:1. Your low gear choice depends on actual power level. A lot of guys with plenty of power run 1.69 low gear. Real good idea to run an aftermarket case and internals at the power level you're talking.
Hayden Enterprises, who also posts on here, probably has just the tire you're looking for. I'm sure he'll be along to fill you in on sizes. Bolt patterns can be all over the place. It'd be nice to think everybody had the same so you could borrow tires and wheels but it's not usually the case.
An aftermarket third member is a great idea. Which leads to axle spline:
I'd run 35 spline minimum and stepping up to 40 has the added benefit of stiffening the whole housing. Not to mention the fact that you'll probably never break one.
Gear ratio is another one of those things that needs to be matched to your intended RPM operating range, which goes with tire height and cam selection.
Shifter selection will come down to preference. The N&P piece is nice but eliminates park. Thats not really a bad thing because it has the added benefit of taking some rotating weight out of the trans. Precision shifters are thin and easy to put in the upper frame rail area of the car. Some people convert quarter stick or other type shifters to a push style like the N&P. Solenoids may not be legal depending on where you race.
Dry sump isn't needed but you seem to know the benefits of having one so that's kind of up to you.
The one thing you didn't mention but is equally important is converter selection. Some people cheap out because they buy it near the end of the build or for whatever reason. Have one built by a well known manufacturer using your cam, gear ratio, tire size, weight, etc. It'll be well worth it.