Can you get to 400 without turbo or super-charger

shumby

it adds RWhp not engin HP

and at the end of the day that is what matters.

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Originally Posted by SAM@GTM
Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living .
Sam

MightyBobo

Not enough that it'd matter. As many found out in the LSX world, running a high HP setup with a lightened flywheel only ended up making the damn flywheel a weak point in the system heh.

And parts gaining power from each other isnt nearly as exponential as some think heh.

shumby

true. especially parts adding or muliplying the HP numbers. The G37S has dynos to prove that is not true.

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Originally Posted by SAM@GTM
Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living .
Sam

ssqpolo

im pretty sure we will be able to get over 400hp NA in time. check out the work cosworth did for the vq35 for the castrol syntec top shop challenge. i think they pushed something near 430hp NA...which is pretty amazing. granted it will be expensive, its def. do-able. all we gotta do is hit up eric hsu at cosworth and make it happen

BoBoTee

Cost wise it's not worth it, especially just to get a mere 430hp on 100 oct gas. A turbo set up would cost less, make more power and still use 91-93octane depending on boost levels. I prefer boosted cars to N/A's, more fun to drive I guess.

MightyBobo

The funny part is, in the end, 400 WHP would make this car faster than 99% of the cars on the road, and people seem to think they ALWAYS need more. More more more.

This car was built for the track, and any more than that, may seriously affect vehicle dynamics.

Sure, some 800 WHP boosted ground pounder may be cool, but does anyone honestly think they'll put that power to the ground EFFECTIVELY?

BoBoTee

Sure 400whp might be enough for some, but I don't think that it would make it faster then 99% of the cars on the road. In my area there are a bunch of Evo's,STi's,Supras,Rx7s,Cobras, and Vettes running 400whp,500whp,600whp and up. I had a 400whp Evo8 myself before I wrecked it. I think a 450whp 370z would be good for street and track. It all depends on the setup.

MightyBobo

Seriously? You dont think the vast majority of cars on the road are stock and/or completely riced out w/ no mods? Not to mention all the grocery getters, vans, daily drivers and whatnot out there.

Being the fastest from stoplight to stoplight means **** anymore, really, except the high possibility of losing your license and hurting someone. Straight line racing is boring, too. Street racing is and has lost so much allure now that states are cracking down on it. Go do some legal Auto-X or road racing.

I dont disagree, 400ish HP on the 370 would probably be pretty optimal for a VERY fast track car. Anywhere north of that though, I think you're now just going into the realm of wanting to be a stupid powerful street car with no purpose other than to brag. Who cares about the ridiculously powerful local cars are, do they even track them? Or do they just street race? How often do you go to these car shows and see these blown classic muscle cars that never see anything other than a garage when they aren't at the show?

Its just not worth it for me, career and insurance wise, to get caught racing on the street. I'll stick to legal methods now, thanks.

Crash

Ah geez... I nap for an hour and see a billion things to respond to in one thread... LOL

OK, MightyBoo, I live in Los Angeles, and the muscle cars I see out here are not just garaged. There's a LOT of them out here that are being driven like they were meant to be. Trust me on that. I see races all the time. In Compton, some of the best races go down. 10, 9, and sometimes 8 second cars race down there... The street races there NEVER lose their allure... Especially when both cars are doing wheelies off the line... Yeah, people can get hurt and no cops almost never show up.

Lightweight flywheels don't add HP at all, they reduce the amount of potential HP lost through the drivetrain. However, since we're talking about N/A that won't make it to 500HP crank, a lightweight fly wheel is NOT going to be a weak point in the system. LSx motors make 500HP VERY easily so yes, in an LSx application, there's no need to use a lightweight flywheel. Also, keep in mind that an LSx has plenty more torque (345Lbs+) and therefore can get the drivetrain spinning a lot easier. The VQ can use all the help it can get to speed up the revs.

Multiplier does depend on the motor. LSx motors LOVED mods. Little mods made big differences and every mod did help the other quite a bit. The VQ, not so much. I think that other mods to the VQ won't help each other enough until you FI the motor anyway.

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2002 Corvette Z06 - Totaled
2003 Corvette Z06 50th Anniversary

JoeyD

I think we need to get away from the FI vs NA discusion a bit and focus more on the thread topic. I could go on all day about why I won't FI another NA car. Upgrading FI on an OEM FI car is one thing but on a stock NA it's a whole different animal.

I would like to see 350RWHP (that's over 400 at the crank) naturally aspirated out a 370. The cosworth build did involve a stroker kit to 3.7 I believe. The stock head has great potential. So here is what I think will do it:

-CAI
-Header Back Exhaust (although when looking a the stock headers I think they are going to be tough to beat)
-Injectors
-Ingnition (HKS DLI)
-Underdrive Pulleys ( I hate using these but NA it should be ok)
-Aggresive tune taking full advantage of VVEL

On this car 350RWHP will be incredible to drive. Match that with the longevity you are sure to have without boost and you have a streetable, reliable, monster.

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When was the last time you did 230MPH in something with 4 seats?

RCZ

Amen. I literally couldn't have said that better or agree with it more.

JoeyD

Ninjaman...I too have some substantial experience building, and destroying cars over the last 8 years. And one factor that remains constant is "boost fever". When it is so easy to increase power it's almost impossible to resist the urge to do so. This, ultimately, is what results in blown motors. More so than generic mechanical failure at least. Have you met a single motor-head that could resist cranking it up, if even only one time? I haven't, to include myself.

You will not convince me that ANY turbo setup will last longer or be as maintenance free on a 370 than the simple mods I listed above. I don't care how well the work is done, or how well the motor is tuned, all things being equal the NA setup lasts longer. Sure I would love to have a 370ZTT, but I would only consider this if I had something else to drive when it does break.

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When was the last time you did 230MPH in something with 4 seats?

frost

Drama!

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370z OG

MightyBobo

Its what makes the world go 'round!

To be quite honest, I think people just take things to harshly on a message board sometimes. Im very opinionated and not particularly shy about sharing it. Others who don't like my opinion, but are just as opinionated themselves, will naturally clash.

BoBoTee

Ah, so many opinions here to last a lifetime. Go turbo Go! N/A 2 slow...just thought I would put that in just because it kind of ryhmes.