Is there a cheap way to boost while not under load????

[tyees2002]

im looking for a way to boost while at a stop to try and reduce lag a bit. is there a fairly cheap way of doing this? thanks:big grin:

[mastwolf]

If its an auto, Power brake it, and get a g-valve, it will make the boost come on alot faster.


Int eh shelby, i'll power brake it to about 3K then just slip the foot of the brake....and away we go


Chris

[89daytonaTII]

it's impossible to build boost while your in neutral, if it's a standard. if you got an auto then just do what mastwolf said, do a brake torque and you should be building boost. if your not using a g-valve you probably won't build much though

[OneFastBaron]

Quote:

Originally posted by 89daytonaTII it's impossible to build boost while your in neutral, if it's a standard. if you got an auto then just do what mastwolf said, do a brake torque and you should be building boost. if your not using a g-valve you probably won't build much though

i can get boost in neutral with my mitsu and g valve set to 14psi. i can get about 10psi or so just reving "thumbs up. but being automatic i just power brake it. and the g valve is key for building alot of boost without having your foot to the floor

[ToiboTonaZee]

STUPID question...

But here i am day dreaming of stuff instead of reasearching this type of stuff. What about a fitting welded into the turbine housing the proper angle to assist in spool up. a couple seconds before launch spray a fair volume of 100psi compressed air through there...

Would something like this not work? Maybe a different gas would be more effective.
I think the only other way to help spoolup would be a G valve, and a Stall Converter. With a 5spd you can use the E brake and slip the clutch but who can do this consistantly at the track? and who can do this without prematurely frying there clutch?

[scott]

i may be wrong but I believe rally cars run some sort of compressed air system to create zero turbo lag...i'll do some digging and see if i can back this up or if i'm just smoking crack again.

--scott

[SilverShelbyZ]

Actually I believe they inject fuel into the exhaust manifold to create pressure and keep the turbo spooled up.

[ToiboTonaZee]

FUEL???????? WTF

[86Shelby]

Yes, fuel. They inject a small amount which burns in the exhaust, keeping the temperature and pressure in the exhaust manifold high enough to keep the turbo spooling while shifting or when they have to *gasp* coast through part of the course.

Our manifolds will get that hot when driving hard as well. Take a quick blast through the gears at night in a dark area then pull to the side quickly and pop your hood. The turbo and manifold will be glowing red/orange. It's quite a sight. Mine was nearly white after driving hard on the interstate for a couple hundred miles then going for a top speed run on a deserted road in S.D.