How much is too much?

[Roger Poirier]

Haggerty Insurance triples once you go past 500 HP. Thats why I stayed at 475.

R.P.

[J2SpeedandCustom]

Anything over 500hp on the street is just about useless on street tires. Once you start making more than that you have to really start making suspension, frame, and safety changes. Just my $.02

On the track turn it up and let it RIP!

[comp-spec]

500 rwhp. Need more

[Stuart Adams]

I also think if geared right for great low end torque less hp for me is OK. I like the plant ya in the seat acceleration and not so much going 150mph. But like Steve said got have a quality booty behind the big belly to keep her stable.

[orange88]

well my old motor made 600 with spray, the motor i have now will make about 1000, i allready have plans to start a finding parts for a new motor in two years that will make about 1600 and be street driven

[GBodyGMachine]

Originally Posted by Roger Poirier

Haggerty Insurance triples once you go past 500 HP. Thats why I stayed at 475.

R.P.

How do they know how much HP you have?

Jeff

[Roger Poirier]

You have to tell them if you want to have insurance. They ask what engine, specs, etc. Insurance companys are not dumb like they use to be. They know all about pro-touring, pro street cars. They even have a handle on old cars using turbos, superchargers etc. They were selling insurance at the Detroit Autorama 2006 event.

R.P.

[GBodyGMachine]

interesting
J

[markss28]

550hp is good on the street, plus if you tune your whole car right IE suspension, engine, tranny, gears. You should be able to run in the low 11s maybe 10s if the car is light enough. And you can still drive it on the street without worry of blowing things every 6 months.

Plus 550 is where my tranny is rated to handle.

[Damn True]

1500hp? Are you serious?

The most dialed production car in US auto history has 505hp and would easilly be more car than most could handle anywhere near it's limit.

Putting three times the power in a chassis that is 1/2 as capable seems rather absurd to me.

You are talking 3x the power of an Audi R8.

http://www.mulsannescorner.com/audir8-01.html
Is your suspension as good? Do you have the aero package to keep the thing on the ground? Do you have the skill that Tom Kristensen does?

Like Steve-o said, if you can't put it to the ground, if you can't keep from blowing parts out the back (ala the old AAMCO commercial) and if you can't come close to being able to control 1/3 of that whats the point other than to say, "It's got 1500hp."

Honestly I can't imagine a street tire and any suspension that you'd run on the street packaged in a 35-40 year old car is capable of handling more than about 500-600 (Not taking into account the nut behind the wheel.) unless you are just going to putt around town under 4000rpm.