Stillen HR S/C
Well, yes and no. S/Cs like short gears because boost is RPM-based unlike turbos, which are load/exhaust velocity-based. By having shorter gears, you get the S/C into peak boost more quickly. That's a good thing in 3rd-6th, but can cause problems in 1st/2nd without sticky tires. Short gears with a turbo are a horrible idea, though.
I personally don't know anybody who has advocated shorter gears for a turbo application. I know of tons of guys who swap in nothing but taller gears. You want to let the turbos "see" high load for as long as possible, because that's how they shine. If you rev through a gear too quickly, turbos won't have a chance to carry the load, so to speak.
I personally don't know anybody who has advocated shorter gears for a turbo application. I know of tons of guys who swap in nothing but taller gears. You want to let the turbos "see" high load for as long as possible, because that's how they shine. If you rev through a gear too quickly, turbos won't have a chance to carry the load, so to speak.
I agree with the above statements, I just wanted to make sure the OP is ready for the 3.7's.
Where are all these 350z's hiding in Houston, I have seen Robert K's makes me wish I still had mine
Where are all these 350z's hiding in Houston, I have seen Robert K's makes me wish I still had mine

They are toast. I have a set of 305 R888s on now. I am keeping both pumpkins until I figure out which ratio I like better. Then I'll sell the other one.
I rarely leave the Lake Conroe area. Hope to spend more and more time in Baytown once I get the car put together.
I haven't been over to the vq37 forums, but I heard the supercharged vq37's make like 500hp without going crazy
I think you are smart for keeping both pumpkins, swapping them is pretty easy, just kinda some labor and time, those pumpkins are kinda heavy... I could probably swap them taking my time in 4-6 hours with a car jack
1000th post!!!
I think you are smart for keeping both pumpkins, swapping them is pretty easy, just kinda some labor and time, those pumpkins are kinda heavy... I could probably swap them taking my time in 4-6 hours with a car jack
1000th post!!!
Last edited by Classy; Jul 7, 2013 at 12:42 PM.
Most of the 370s that post build them up to about 500hp/400tq, then part out and go TT. It seems like 500hp is the limit the MAF setup, piping, and intercooler can support (without considerable redesign). Only takes a pulley swap and impeller upgrade to max it out. Ill see if there is any truth to that in a week or so. If all holds together, I'll send the Blower to Vortech for the SI upgrade next. Thinking the transmission will be needing some attention sooner than later though. Built 5AT or 6MT swap? I cannot decide.
I have a feeling I'm going to like the 3.3 better, but it's not a big deal for me to drop the car off at JTran on my way to work for the swap. They are right by the airport.
I have a feeling I'm going to like the 3.3 better, but it's not a big deal for me to drop the car off at JTran on my way to work for the swap. They are right by the airport.
Small update:
Nismo rear add-ons. Fitted and sent to paint.

Wilwoods went on. Staying with red for the time being.


Turbosmart Dual Port BPV going in.

And Cog Pulleys!! 34/30 with the stock 3.2" up front.

AEM Progressive Meth Controller goes in tomorrow, along with a rear fender roll. Should be on the dyno early next week. Then install Chargespeed Side Cowls and Shine TS-Style rear diffuser. That will wrap up this visit to JTran Studios.
Nismo rear add-ons. Fitted and sent to paint.

Wilwoods went on. Staying with red for the time being.


Turbosmart Dual Port BPV going in.

And Cog Pulleys!! 34/30 with the stock 3.2" up front.

AEM Progressive Meth Controller goes in tomorrow, along with a rear fender roll. Should be on the dyno early next week. Then install Chargespeed Side Cowls and Shine TS-Style rear diffuser. That will wrap up this visit to JTran Studios.







