OK Guys and girls, I will be in the market for a new G Sedan in about 6 months, and have an interesting question. Is it possible to push 400hp (crank not wheels) without forced air induction of any type and major machine shop work (heads, cam, crank, etc...)? I've seen alot of good stuff in here and was wondering if anyone on here has done it yet. Trying to stick to exhaust, intake, electronics and small stuff. No blowers, turbos or the likes. Chime in with what you think can be done.

The Beer Man

 

on a stock g37 it puts down 287whp.
after heavy modding with a tune now 325whp.
even after all that modding,with allowing 20% drivetrain loss.
400 at the crank isn't going to happen without turbo/supercharger/nitrous.

 

In short, NO. With spending 3500 on good exhaust (MXP, Fast Inten), hfc (Berk/FI), stillen gen 3, uprev tune, etc. your lucky to get 325 at the wheels.

 

i think it can be done. the guys over in japan were doing 350whp N/A on 1st gen g35's, even non-revups. would it be cost efficient for you, no. you think its expensive to go boost, the price for a WELL built and tuned N/A engine with all top of the line goodies and tons of r&d into it is probably well over 20 grand.

 

I don't think 400 hp at the crank is doable. UNLESS, someone cracks the VVEL code and is able to do some type of wonderful magic which we don't know about. The only way to make more power N/A after intake, exhaust, and a tune is to work on the heads. You can't touch these heads with the VVEL setup. The calibration procedure for the VVEL is so intense that it is easier to just put on new heads (I'm talking from a dealers perspective for a repair or something). With no way to put in new cams or do any headwork, I don't see 400 hp being doable.

 

Is it possible? MAYBE (and that's being very optimistic).

But you said you wanted to stick to "exhaust, intake...small stuff" that means you definitely won't do it. You gotta pay to play man.

Plus, and this is just IMHO, but measuring HP at the crank is stupid. The only reason I can see to measure HP at the crank and not the wheels is so someone can get into a d!ck measuring contest...the power at the wheels is what matters.

 

Everything is possible with the right amount of money

F1 engines make almost 800bhp from 2.4L N/A engines Question is, how much are you willing to spend?

 

Hell no!!!

 

Possible, but not plausible...

 

I appreciate the input. I don't mind spending the cash, I was just wondering if it could be done. I was measuring crank HP because sometimes you can't judge parasitic drivetrain loss accurately. I'm looking forward to getting my G and wrenching away. Thanks.

 

You will give up once you try to replace the cats. lol

 

Start with a motor out of an M56.

 

ivoid, why is it impossible to do head/cam work on our cars? I understand what VVEL does but I'm still sketchy on the implications of it from a modding perspective.

 

The best way to measure your HP is to look at the delta (gain/loss) by using the same kind of dyno for before/after measuring. It will give you a decent look at your WHP and seeing the change will be your best measurement

 

Will a M56 motor fit in a G? I would love to put a V8 in my car.