I am interested to know at what power range does a motor leave what one would call a streetible car. Also what would the main aspect of driving experience be to qualify a car as streetible? Is it the clutching?

 

I'd love to someday have an engine rebuild, tubs upgraded etc to produce a serious amount of BHP, but I wouldn't want to create a monster than couldn't be controlled.

 

MAC1 I believe has created a serious beast, and I'd love to know how his car drives and how controllable it is. So MAC1, if you see this thread, I'm interested to know of your experience with high BHP cars.

 

Thanks in advance

450 bhp r32 skyline is on serious car, My Supra was a nightmare 508 bhp. My target with my zed will be around 400 bhp when money allows. Would like know a good handling bhp figure for the Zed in street tune. Good question.

I remember hearing alot of high powered Zeds are pigs to drive on the streets if done as an everyday Zed! And if you want to give it some welly, if Tubs are bigger take longer in the Rev Range to kick in! You might have to accelerate to 4.5k before they kick in which is abit rubbish on the streets as in 2nd gear that will be like 50mph lol! Beefy clutches can be a pain! Previous owner stuck a 6puck clutch in mine and it is annoying in traffic and hates been fed out to gently roll around :(

I'm sure Mac will answer at some point. I've been out in the beast and would say it was very streetable, we went through Richmond which has lots of cobbled streets etc and it wasn't a problem, Mac's got the carbon clutch I believe.

my son has an r32gtr running at about 530bhp @ 1.3bar (dyno proven) it is capable of more if he turned up the boost, but he feels this is good for everyday use. i personally would not like his clutch for everyday use.

i know somebody else with an r33gtr running about 630bhp @ 1.8bar also as an everyday car but he has had quite a lot of turbo problems.

I'm aiming to get about 450bhp out of the V8 after a bit of swapping and fettling of parts, it's more the torque i'm worried about! It'll rip your head off and chuck you in a ditch if you're not careful :rofl:

 

450bhp seems to be about the right amount for the road before it gets silly. Anything beyond that and the question has to be asked, when are you going to use that on the public roads?

Not many sports cars you can buy go much beyond 450 to 550bhp, maybe a bit more for some of the big GT type stuff but mainly because it's more than enough for road use.

The manufacturers could get a lot more power out of engines if they wanted but it's just not needed.

How often are you going to need your 1001bhp in a Veyron and be able to floor it on a public road?

As Chris says, the speed limit is still 70mph on the motorway and 60mph on the main roads just depends how quick you get there.

 

In the wet, the more bhp you have the harder it's going to be to keep control of it too.

And the BHP's that are being quoted above, are they BHP figures at the rear wheel or the flywheel?

Good question, i'm aiming for 450bhp at the engine

Well road cars generally are quoted as flywheel figures.

I think mine must be around 430 wheel horsepower at the moment and I could happily do with another 100 I reckon.

Need a remap and to turn the boost up and I might just get there :)

I still find my completely stock Zed pretty scary! There are some occasions when I wouldn't mind a bit more, but they are quite few and far between. Although I'm sure I'll get used to it and start getting power hungry like the rest of you at some point!

Well i've only just started driving the NA (admittedly it is pretty highly modified) and it scares the crap out of me now :rofl:

 

God knows what i'm going to do with twice the power and twice the torque! :shock:

Well i've only just started driving the NA (admittedly it is pretty highly modified) and it scares the crap out of me now :rofl:

 

God knows what i'm going to do with twice the power and twice the torque! :shock:

 

Poo your pants? :rofl:

Thanks guys for all the replies.

 

My aim most definitely will be to have a car that could be used as an everyday driver, if I wished and yet have the ability to go like a bat out of hell, if I wanted.

 

From your replies, it looks like maybe 450bhp-500bhp at the flywheel would be the upper limit range. Higher than that would be a waste of time for my purpose and possibly from what you are saying reduce the enjoyment of everyday driving.

 

My car is the tt and completely stock at the moment. That said it is not slow.

I have driven so many z's over the years and i recon 400bhp with similar torq is a really good area to be in they feel strong dame quick and reliable. most of the big power Z's iv been involved in have felt so different and havnt always been reliable .

My Z's around 400bhp and it perfect power for the street mate.

daz

if your stock at the moment, then do the usual first to get you in the high 300's

ie intake, exhaust, chip and increase boost to 14psi.

 

There is a huge difference compared to stock.

Suspension and chassis setup is just as relevent, without the proper setup a high powered car will feel uncontrollable.

 

Clutch type plays its part, together with cam choice and mapping...but these days its quite achievable to have a car with over 600 horses and be fully streetable. Not that you'd be able to make regular use of all that power.

 

I would be very happy with 450-500 flywheel HP in a good power curve with plenty of response. It is the chassis setup that will make the car quicker on the road/track rather than outright horsepower.

Edited May 25, 200916 yr by Yowser

Thanks for the feedback guys.

 

I agree with the comments about the suspension and chassis being equally as important as all out horsepower.

 

My car is stock at the moment. I believed it had been tuned by the previous owner (Legrath might be able to confirm), but the original settings were reinstalled as it had been giving me running issues, backfiring etc... Originally above a certain rev range it was really very quick, but now the power curve is much smoother, but still quick.

 

MAC1 I believe has created a serious beast, and I'd love to know how his car drives and how controllable it is. So MAC1, if you see this thread, I'm interested to know of your experience with high BHP cars.

 

Thanks in advance

 

Creating as it is still on going lol Its got a over 500 at the rear wheels and we still have a few more things to do that will increase that number.

 

The car can only be described as a serious transformation from a standard Z that it once was nine years ago. I have not spared any expense so best to look in the rides section as there is too much to type out on here

.

The car is very usable on the street the carbon clutch plays a big part in allowing me to drive the car in day to day traffic It was well worth the £1600+ price tag as it feels no different to a stock clutch.

 

IMHO One of my worst experiences in driving a high powered car was that of a friends 600bhp Skyline using a triple plate clutch. Fine for track use but a complete night mare in ever day traffic. So think about your clutch options as this will play a big part in driving the car on the street.

 

The power delivery is very good for road use and despite high profile race cams that are fitted it is very user friendly and when I ask the car to quicken and I can spin the rear wheels at 70mph+ in Straight line acceleration In total dry conditions so needless to say it’s a serious handful in the wet.

after 500, i dont know if i would be able to tell the difference between 500 and 800.

 

 

500 with a lot of boost must be mental,

 

 

high 300 is fast for the streets.

 

 

500 would be my limit really woudnt want more than that, only because i woudnt behave in it and that be dangerous.

 

im not the sensiblest with 350 :S

thanks guys for the advise

Creating as it is still on going lol Its got a over 500 at the rear wheels and we still have a few more things to do that will increase that number.

 

The car can only be described as a serious transformation from a standard Z that it once was nine years ago. I have not spared any expense so best to look in the rides section as there is too much to type out on here

.

The car is very usable on the street the carbon clutch plays a big part in allowing me to drive the car in day to day traffic It was well worth the £1600+ price tag as it feels no different to a stock clutch.

 

IMHO One of my worst experiences in driving a high powered car was that of a friends 600bhp Skyline using a triple plate clutch. Fine for track use but a complete night mare in ever day traffic. So think about your clutch options as this will play a big part in driving the car on the street.

 

The power delivery is very good for road use and despite high profile race cams that are fitted it is very user friendly and when I ask the car to quicken and I can spin the rear wheels at 70mph+ in Straight line acceleration In total dry conditions so needless to say it’s a serious handful in the wet.

 

Started to worry reading this but glad yours is still streetable as I'm hoping for 500-600 with an ACT clutch so should be ok.:cool:

Started to worry reading this but glad yours is still streetable as I'm hoping for 500-600 with an ACT clutch so should be ok.:cool:

 

Best of luck that it all goes well:cool: