Boosted Performance round 2 list

m3chhawk

Sure, and I understand what you are going for, I'm just saying boost by speed isn't necessarily the correct way to go about it because the car builds so much torque, so quickly that you would have to limit everything below 100 MPH.

For reference I'm running 7.25 PSI wastegate pressure. You can theoretically run an EBC at double so on a stock block BP kit, you don't really want to run less than a 6PSI spring. Even at 6 PSI, you will need some sort of control, rather it be human or electronic. It can actually be managed pretty well with the throttle once you get used to the car. The kit has a great feel to it and the boost is very predictable.

My setup is far from ideal at the moment. Hankook V12s 305/30/19 at ~-2.5 degrees camber. The plan is to get a camber kit ordered and stuff some 335 RE-11's in there with as little camber as possible. But I'm definitely interested in any other suggestions.

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jwick

What is your basis for not 'wanting' to run less than 6psi? You got some real data/reasoning to back that up?

My tuner is going to install my manual boost controller and requested that I install the minimum spring that comes with the WG and he'll adjust/tune from there to a level he feels comfortable with. Chuck33079 and I are in agreement that they minimum spring from the table Sasha posted in another thread was around 4.5psi. Is there an actual issue with running that low a spring or is that just your opinion?

My plan was to run that minimum spring for a few weeks, maybe a month or so, on the base map until my tuner can squeeze me in.

Maybe Sasha can chime in, will I have an issue with that?

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build

m3chhawk

Depending on your setup/tune you are going to want somewhere between 11-12 PSI for full power. Your waste gate will always determine your minimum pressure. The boost controller will only let you run up to a 100% duty cycle. So for a 4.5 PSI wastegate spring, you would only be able to run 9 PSI max (100% duty cycle) whereas a 6 PSI wastegate spring you could run up to 12 PSI.

Ninja edit: Just realized you are going to run a manual boost controller. Disregard all of that ^ it doesn't apply to you.

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jwick

Yeah I might go the electronic in the future but my build list is already expensive enough. Manual is good enough for me until I get comfortable with the new setup.

Now here's to hoping it won't be useless power considering us G guys are bascially limited to 285 out back.

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build

Joepro

The more I think I guess this is what I am ultimately getting at, I rather have a manageable 450 ish that over 500 and it be totally useless.

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jwick

My tuner isn't really comfortable with anything over 400 ft/lbs on a DJ for this drive train. So basically my instructions to him are I want a torque curve like a table top (at ~400ft/lbs) and WHP will fall out where it does.

In my current mod state NA 2nd gear is basically worthless in anything but a straight line now and I've learned to drive around it. I'm sure this too will be a learning process.

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build