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Old 01-12-2002, 10:33 AM   #4
thermal
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Join Date: Aug 2001
Location: My Garage, Va.
Posts: 5,547
waz up civic addict?
...well, it is possible to adjust the internal wastegate also without utilizing a boost control device. there is a control arm that opens the wastegate that can be turned clockwise or counter clockwise. the problem is, you'll never know how much psi you'll end up until you look at the gauge. any wastegate, internal or external can be controlled be a boost control device ie. EVC or MBC.

Quote:
If a turbo has an internal waste gate, you can't add one to it can you?

if what youre asking is, can u add an external wastegate to a turbo set that uses an internal wastegate already, this is my answer:
u can add an external wastegate to a turbo set that is accompanied by an internal wastegate. it will need some modifications tho. it will NOT be worth it to convert....IMO. what's going to happen is that, the internal wastegate will have to be DIABLED to properly control the boost setting.

Quote:
How any PSI can I boost with that system? I though I saw the turbo was rated up to 200+hp. Not sure it was a while ago. I know its an 18G turbo....


if u were looking at a kit, it will be pre-set to a factory boost of between 6-8 psi. that is very safe to turbo your Si. a T-25 or TD05-h 18G is capable of pushing close to 18-20 psi boost.

1 psi is equal to 10 plus/minus 2 horsepower.......

hope that helps
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