Let's suppose someone wanted to build a fun street car and had no intentions to take it to the drag. At what point do you have too much horsepower for the street? These 500+ beasts are great, and I'm sure are awesome highway monsters, but what is the best compromise for 0-120MPH, keeping the car in control, etc? Would you want high horsepower with lower torque? Shorter gears?....High horsepower, high torque, long gears?

Please discuss.

 

I think that 450 whp on streets is about the limit before its unuseful

 

Better yet, don't street race.

Keep it on the track.

 

i like pedaling 650 actually...

 

I don't believe I ever posted that I was going to street race.

 

J, how do you keep it in control? I was speaking with a guy in Dallas who has a Greddy set up at about 450whp and he said it was a futile effort to keep it in control.

 

Well the issue is that while 400 whp in 3rd gear is awesome, it becomes less impressive in each higher gear. To make the overdrive gear feel like a 2nd or 3rd gear pull requires a lot of power! So I don't think a 600 whp dynojet is unreasonable. To make it more easily usable, the power level can be matched to gears or speed (taper boost in lower gears).

 

Ha you would say that!! If i only knew what it was like....

 

traction anyone??.....works like a charm....sticky tires + 550whp = yum.

 

I have 567 that i drive with and after third gear i have no traction issues well none that i cant handle

 

I'll know in around a month...woohoo

 

500whp is perfect, you can hook in 2nd in the summer. 600+whp and stock gearing cars are basically useless in 2nd, early 3rd, I can peddle 2nd gear but I have LONG gears and TALL tires. Now if you like racing from highway speeds, 80mph in 4th can put down tons of power. All up to you/your tastes.

 

I have a vortech and 3.9 FD.

I get full traction in 2nd gear with my 455whp map when it's at least around 75 degrees outside and the tires are warmed up
With my 477whp map, I don't get 100% traction in 2nd gear.

When it's 50 degrees outside, I sometimes don't get traction even in 4th gear with my 477whp map.
It depends on how warmed up the tires are which I can tell when they go from 30 psi to 34-35psi on the rears

 

Thanks for the posts gentlemen, gives me something to think about.

Also, in your opinions, what is the best tire setup? What tire gives the best traction for street driving? What sizes?

 

the best tire setup?

that's like asking what is the best car


pick a type of tire that has the compromises you're willing to deal with
get as wide as you can get and get as sticky as you're willing to spend the money on as far as frequency of replacement

 

"Let's suppose someone wanted to build a fun street car and had no intentions to take it to the drag. At what point do you have too much horsepower for the street?"

That's why I said that.

 

580whp is perfect for me

 

I have 565 whp @ 6700 RPM and with 295 tires and stiff suspension it is useless until I shift to 4th.

I am putting on some 295 R compound Toyo R888 tires and they are sticky as sh*t. If I can overpower those then I am going to drop the powa like it's hot to approx 520whp.

With 295 standard street compund tires I would say 450whp is the sweet spot.

JET

 

I love having over 400whp..

 

I thought you were getting rid of your car