cwis9992

One of my buddies told me boost no good on the track,but my family has always been fans of clutch actuated chargers(either vortech or roots style) for tracks. Because if built right the car has more than enough manageable power in the corners and on the straights you can turn it on and really lay down some power without having the same amount of uncontrollable power in the corners. What's your opinions on this?

Thanks

whatcop?

The issue isn't controlling the power the issue lies in the heat. Oil temps and coolant temps become a royal PITA.

TriplBlk

Even with only 30 min. Sessions?
Air to air intercooler and an oil cooler isnt effective enough?

Bill Dearborn

The air to air intercooler provides more power not engine cooling. Normally aspirated cars need larger radiators and EOCs a charged car will need even better cooling. Check what GM did to make the ZR1 work on the track. You need a completely engineered package not a cobbed together job.

Driving on the track isn't about getting through the corner and dropping the hammer on the straight. You need to roll into the throttle when you are in the turn so you will be at max throttle by the time the car tracks out. In some turns you will be increasing throttle from almost the time you complete your turn in with some distance to go before you pass the apex. In other turns you will be pulsing the throttle to make the car change its attitude in the middle of the turn. You don't want something that surges or changes its power output while you are doing any of that. You want it predictable when you are pushing your foot down and when you are lifting it. Unlike a drag race it isn't a stab and steer deal.

Bill

Jason

We should make a FAQ:
FI?
No.
Bored, stroked, cammed?
No.
$5000 coilovers?
No.
$10,000 wheels that weigh the same as stock?
No.
Pedal extenders?
No.
$5000 drilled, slotted, frozen, scatterd, smattered brake rotors?
No.
A6's for my first HPDE?
No.

I'm sure I'm missing some.

MX621

U mean like the blower on mad max?

brkntrxn

Mmmmmm, you had me at Waffle House.

cwis9992

exactly!! i was thinking dont the f1 cars have a pass button on the streering wheels? you could hook it up to a button like that

MX621

U better Put your flame suit on...

BrianCunningham

A clutch is not needed

Blowers FREE WHEEL when not under boost

John B

Other than Mad Max I have never seen or heard of a clutched blower.
Every blower I have seen spins constantly. They relieve boost closed throttle via blow off valve.

MX621

O I completely agree, the mad max reference was my poor attempt at a joke to the thread starter .

davidfarmer

Calaway had one of their boosted cars at the NCM/VIR event a few years back, and claim cooling wasn't an issue. So I say it can be done, but it is going to take extensive cooling upgrades to both the boosted air and the water/oil engine cooling systems. If you can find places to package that much extra cooling capacity on a car that barely has adequate frontal area to provide CLEAN/COOL air to the oem radiator, go for it.

Maybe do like Porsche, put coolers on the front/sides and slot/louver damn near everything. You can't just stick an intercooler in front of the radiator and even come close.

cwis9992

but even if it was just blowing off the boost, wouldn't it still be sapping horsepower? and the mad max was the original thing that got me thinking about this until i saw a diesel truck that had a turbo and a supercharger and when the turbos spooled up the clutch disengaged and the charger could no longer sap horsepower from having to turn the rotors.... it was just an idea.

and yes i understand the rolling into the power and such but wouldnt it be nice to have just that little extra to pass that guy in the straights??

whatcop?

Mercedes uses a clutched blower system.

whatcop?

You forgot Hoosier R6s

TriplBlk

That's actually good to point out. Although I am surprised you said no cam.

cwis9992

actually it should be:

1st time on track- no car get a 50cc go cart

2nd time- maybe your ready for 2 cylinders

..... 50th track day- congratulations your finnally ready to get on the track with others in your stock corvette

not being a smart-A just saying i would much rather start off in something small to get a feel for tracking than starting off in a 'vette or any real car for that matter. roll a go-cart, no biggie. roll your daily driver 'vette well that another story entirely

drivinhard

the most important one

Jaymz

How could you forget Lightweight titanium lugnuts ???