What's too much for the street?

[472 R/T SE]

20mph burnouts are fun.  I'll have to try it @ freeway speeds. 
Although I was at the track last year and midway thru second it got squirrelly during one of my first runs.  Don't know how fast I was going but it scared the bejebees out of me.  I didn't have to convince anyone of it cause my buddy up in the stands seen it all happen.  He was asking folks around him if they seen that and they all looked at him funny he said.

I tend to agree with you nz, 500-550's just about right.  Without any chassis support you're asking for trouble on the street IMO.

[Carlwalski]

Good point, chassis stiffening will also help out big time by giving the driven greater control & traction. I have the XV stiffening kit so am happy in that department may look at ladder bars and some custom rear end diff work. I'll be running 275s at first as I believe it's not all to do with wheel size, although bigger meat helps, it's not everything IMO.

[CUDASTRIKE]

Your just getting old and forgetful I think its called senile  (at least thats what the tell me  )
15 years ago +/- you would have yelled WOOOOHOOOO-WOW  THAT WAS COOL! and did it again 
Go to the garage get it out and do it again  and again , BTW my viper is for sale only 6000 on the clock.

As far as HP on the street I feel 5-600 max at the wheels is about all ya really want the really big factor is safty as in control and getting the thing stopped.
A few times we ran 700+ in a chev. and literally had to detune it for street use otherwise your outta control at launch or just there after without slicks then the problem is slowing the thing down it was built to go fast/straight not to stop quick 4 blocks down at a stop light and ya kinda look stupid popping the chute  on the blvd with a hot mom in a mini van looking at ya like your a goof    .
A closed course is still iffy unless the money is right 

[HP2]

Thanks Carl! 

The cam size has a huge impact on the driveability of the car, IMO. The longer the duration, the bigger than cam, the less it likes to operate at off idle to low cruising speeds. IF the operating range of your cam is 3000-6000 rpm, it isn't going to be real happy cruising around town at 2000 rpm. On top of the rough and high idle situation, you also are going to need high compression, a high stall, loose converter and pretty steep gears to utilize the power curve of a larger cam. All of those factors are also are big impacts on ease of streetability.

Yes, I have noticed as I get older I am less willing to deal with radical manners in a street car, so someone younger might really like a street car that idles at 2 grand, revs to 4 grand before moving and cruises at 4 grand down the highway with a  drone that makes your ears bleed. 20 years ago I didn't mind either, but the constant tinkering and maintenance it requires to drive something like that on the street has weened me into milder combinations for street duty and leaving the radical stuff for the track.

[Carlwalski]

Cool, thanks for the input mate, as I thought, it does seem to make a big difference. I'm glad then that I made the decision with Tim's help to "dim" and detune the engine where possible so it's hardly breaking a sweet. I think this mixed with EFI should make it a pretty "tame" engine for the hp it's making, we shall see. 

[Dragula]

I got used to driving my injected Cuda when it made about 600hp on the street. When I rebuilt it, naturally I upgraded things a bit.....Maybe too much.

I can change lanes at 50mph with the gas peddle at just over half throttle. The left front wheel won't stay on the ground leaving stop lights. The paint is all cracking in the body stressed areas. Tires only last 1/2 the season. The fast Mustang guys won't even race it. The girl friend MADE me install wheelie bars because it didn't set the front end down till 2nd gear leaving a car show.....And I haven't lost to a crotch rocket yet!

Its really scary to drive and makes my hair stand up just to start it and let it idle. The seat has hit me hard enough to see stars when I wasn't fully against it and routinly leaves bruises. I would say I am close to the limit. I have seen more though.

[Super Blue 72]

One of my friends has a 650hp Shelby Cobra replica.  His problem he sums up in 1 word- Traction.  Too much power, too light a car.  It almost isn't fun for him to drive around in.  He likes his '68 Charger with a 383 more.  Maintanence and overheating is an issue too with too much HP. 

All depends how much you crave power too.  Too much hp for one may not be enough for another.

[Oldschool]

I can change lanes at 50mph with the gas peddle at just over half throttle. The left front wheel won't stay on the ground leaving stop lights. The paint is all cracking in the body stressed areas. Tires only last 1/2 the season. The fast Mustang guys won't even race it. The girl friend MADE me install wheelie bars because it didn't set the front end down till 2nd gear leaving a car show.....And I haven't lost to a crotch rocket yet!
Its really scary to drive and makes my hair stand up just to start it and let it idle. The seat has hit me hard enough to see stars when I wasn't fully against it and routinly leaves bruises. I would say I am close to the limit. I have seen more though.

Sounds like you are just getting to the fun level to me.......        

[KellysCuda aircard]

Sounds like you are just getting to the fun level to me.......        

 

[Chryco Psycho]

 

[whitesatinmopar]

Interesting thread  I'd say..............if it's legal based upon your state laws then there is no limit..............however as evidenced by some of the above comments, the secert is your individual level of common sense and your ability to drive AND control the car. My 440+6 with a mild (.484) cam, which actually runs crappy in my estimation, is a blast and supposedly when tuned by someone like CP will make 475 hp @ 529 # torque. Oh my I wish CP were closer to my part of the Mopar universe. 

[Chryco Psycho]

I wish a lot of things were different too Jim
 maybe if I can get to Carlisle next year I will fly there & drive in with you for a change

[whitesatinmopar]

     I can pick ya up either at Columbus and you can spend a couple days or I can pick you up at Pittsburgh on the way to Carlisle and you can lay over here after Carlisle. We and "The Mopar Barn" would be honored with your friendship and presence.