Anyone putting over 400 to the wheels without forced induction?

[rupertaker]

Hey guys.

I'm looking to get a NSX within a few monthes, mainly as an alternative to the Supra and as a daily driver. A 750hp Supra just isn't practical for daily use

I'd like a high revving car that makes atleast 375 to the wheels without forced induction, but I've yet to see any on the forums. Also, does anyone on the forums use individual throttle bodies? I haven't seen this setup on very many NSX's in the USA, any particular reason?

Thanks in advance

 

[Ponyboy]

I think the highest I've heard of NA is 320rwhp. That was with the Comptech cams, springs, headers, an aftermarket exhaust and intake. That's about as high as you're going to get for an NA car here in the US. I'm sure you can get the figures you want from tuners in Japan though. It's just so much cheaper to get that kind of power with FI that the NA alternative isn't as attractive.

 

[rrwildman]

If I really thought I needed 375 RWHP in a 3000 lb. car, and if you're like me and Mr. Honda and don't dig on abnormally-aspirated road cars, I think I'd look at another car. You'll have a hard time getting a small-block Chevy in the back of an NSX.

- Richard


[This message has been edited by rrwildman (edited 27 March 2003).]

 

[sjs]

Your requirements are mutually exclusive. If you built a normally aspirated NSX engine that put 400 to the wheels without a major increase in displacement it would not be even as "practical for daily use" as the Supra. There is a mathematical limit to the power you can get from a given displacement at a given RPM. If you increase displacement with greater stroke then you will sacrifice the ability to increase redline, which in turn limits max power. You can get pretty far with a larger bore plus a modest increase in stroke but you will still need a pretty radical engine to make your target and that doesn’t make for a pleasant street car, not to mention costing far more than forced induction and producing far less usable power throughout the RPM range. Don’t lose site of the fact that a broad torque band is the key to overall performance, not peak HP. You can easily build a turbo that peaks at 350 HP but will suck the headlights out of a car with the same engine built for 400 HP normally aspirated.

In other words, there are good reasons why you don’t see them.

 

[Nimbus]

Buy the Le Mans NSX GT2 car 550hp NA, but then it'll be even less streetable than your Supra.

 

[nsxtasy]

If you really care primarily about horsepower numbers, then I would suggest buying a Z06 or a Viper rather than an NSX. Both are normally aspirated, of course.

If you don't care that much about horsepower numbers and just want something that's reasonably quick and dependable with terrific handling, then get the NSX. If you get the NSX and you decide you want more power, then you can add a supercharger later, which is the most common and reliable way of getting significantly more horsepower on an NSX.

 

[4AU4LIFE]

Originally posted by nsxtasy:
If you really care primarily about horsepower numbers, then I would suggest buying a Z06 or a Viper rather than an NSX. Both are normally aspirated, of course.

If you don't care that much about horsepower numbers and just want something that's reasonably quick and dependable with terrific handling, then get the NSX. If you get the NSX and you decide you want more power, then you can add a supercharger later, which is the most common and reliable way of getting significantly more horsepower on an NSX.

I used to think that supercharging was reliable.

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92 RED/BLACK 5-SPEED

 

[nsxtasy]

Originally posted by 92NSX:
I used to think that supercharging was reliable.

Tell me more... or is there a previous topic that you can refer me to?

 

[matteni]

Originally posted by nsxtasy:
Tell me more... or is there a previous topic that you can refer me to?

92NSX has posted several messages about the problems with his car - which is basically undrivable due to "issues" with the BBSC. This is too bad and I can imagine how it must feel / hopefully these issues will be sorted out quickly...
http://www.nsxprime.com/ubb/Forum22/HTML/000238.html
http://www.nsxprime.com/ubb/Forum22/HTML/000128.html
http://www.nsxprime.com/ubb/Forum22/HTML/000128.html

and the latest...
http://www.nsxprime.com/ubb/Forum1/HTML/008200.html

 

[NSXTC]

Comptech has a 400+ HP NA race motor for sale right now. I heard they were asking $25k for it. 12:1 compression ratio and wild cams and all the rest. You can forget about streetability and using 91 octane gas, but heck, it won't be FI!

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All My NSX'es Live in Texas

 

[nsxtasy]

Okay... My impression is that the Comptech supercharger with the 6 psi of boost is very reliable. Am I mistaken about that?

(I have heard that Comptech tells people that their SC with 9 psi is not reliable and they recommend against it.)

I have heard at least one installer of the BaschBoost supercharger say that it is nowhere near the plug and play type of kit that people should expect, and that's why there are so often "issues" with that particular unit. Take that for what it's worth.

Originally posted by matteni:
and the latest...
http://www.nsxprime.com/ubb/Forum1/HTML/008200.html

What does a stolen NSX have to do with supercharger problems?

 

[4AU4LIFE]

'What does a stolen NSX have to do with supercharger problems'

Nothing directly to do with each other really. I was merely making a comment about how I still have my car but even so, I can't drive it. In a way, it too has been 'stolen' from me. Though not literally but figuratively.

By NO means am I wanting to take anything away for the unfortunate luck of truly having a car stolen. Sorry if I made a bad connection there.

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92 RED/BLACK 5-SPEED