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BTW, about the 18in rims, ive been told a shorter, stiffer sidewall on the tires (big rims = skinny tires) can improve cornering, which kinda makes sense to me, but it could just be all ricer propaganda, ive never looked much into it
You're absolutely right, the more rubber on the sidewall gives the car more movement on a Z axis (as little as it is) this keeps the bottom, tread, of the tire on the ground and less chance for it to slide when going around corners, ending up in more traction which is MUCH better when taking a corner faster than you should.
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you wont be doing 170 on the roads
How about 155
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but it wont be able to go to the shops to get the weekly shopping without costing the earth to get there or may not even be road legal.
I assume you mean gas, fact is you can build a really fast car that doesnt use a whole lot of gas (I'm not talking 10 sec in the 1/4 mile, and I dont mean you get 35-40 MPG). As for street legal, I've seen 1000+ hp cars rolling down the street. I cant speak for the UK, but I've never seen a car thats not street legal because it has to much power.
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But with anything, the driver has alot to do with it too, as does the engine position, drive type, everything. Not as simple as FWD, RWD, 4WD
It can be as simple as that, a AWD or RWD will have an advantage over a FWD almost any day. That ISNT to say that a FWD can't run 12s or even 10s, I've seen them at the local drag strip. The fact is though you get better weight distribution from a RWD or a AWD car. More weight in the back = more force (downward force) on the rear tires = better traction = less tire-spinning = better times.
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if taken too fast the tyre can come off the rim easier
Which is why I dont drive cars with the whole 1in profile tire. My car has relatively low profile tires (the stock SS ones are pretty small) and I havent measured but its at least 2 in, and I think more. The whole 1in profile thing just serves no purpose.