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Initial D 4th Stage comments... - Archive Topic (Locked)

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CooBlueDAB:
17s still huge... 14s or 15s id believe lol

initialdfan:
http://www.initialdthemovie.com

has anyone seen that before ?
the movie is gonna be out soon !!!

JC:
14"s or 15"s have too much rubber on them, not enough width in the profile, thus less grip, plus the ability to sway the weight of the car on the tyre.

My car has 14" wheels on it at the moment, and it's only 1.2 ton, but I can still sway the car on the wheels when cornering and even in straights, before the tyres even begin to lose their grip.

16" with a 225 profile would be nice, but 17"s or 18"s with a lower profile but wider... Much better!

Just_J:

--- Quote ---

Isnt that a bypass valve? Afaik a wastegate evacuates the turbo when you step off the gas to remove the resistance of the compressed air and makes this lovely sound *g*


--- End quote ---


lol, you actually have them backwards. ;) A bypass valve (depending on how it's used, also known as a Blow Off Valve, or Dump Valve), is used to relieve pressure between the compresser and the throttle body when the throttle is lifted.  Some people use the term bypass valve to refer to the valve that opens on superchargers to release pressure when the throttle plate is closed, or at idle. (Roots blowers can produce boost at idle)

I saw pics of a turbo after a 25psi pressure wave hit it when the car's BOV failed. Blasted the shaft clean out of the housing.

CooBlueDAB:
going in a straight line requires traction on the ground... it has nothing to do with cornering... more rubber, less air pressure = bigger footprint of traction at every given moment... and if you have 1200 HP you need it all if you arent using complete drag setups..

Anyways... onto the real tech.. you said you have an intercooler... I guess you have a turbo, since supercharging would not make those numbers... or perhaps a dual setup?   ... If you cannot produce slips on your times,.. the least you can do is tell us exactly what setup your using? What turbo? Intake, exhaust, tranny, compression ratio, pistons?.. new heads?  higher strength springs and rockers? what cams are you using? How about fuel management.. that has got to use a lot... what octane fuel does it need to run correct?  Also, most importantly, what suspension is keeping those tires on the ground... any chassis reinforcement? I would think it needs it with those numbers..      

Please quench my thirst... mechanical enthusiast here that just loves those kind of numbers in cars that require massive tuning for that kind of performance.

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