hey i just bought an EG hatch, took some friends along to check it out and everything seemed really good, car is still great, just had a question, b16 engine swap from a 95 del sol with a t3t4 turbo. ss auto crome exaust manifold (dont make jokes, its what i have now, it will be changed when funds come) that has about a 2 inch crack accross the front welds. right now it runs just fine, but the turbo doesnt spool up till nearly 7000rpm. it gets up to 7 psi on the boost gauge (not sure but we think its working properly..) but not until 6 or 7000, any idea why?

if my boost gauge is off, how can i tell?

should the crack really make that much of a difference? (its not gaping open, very thin crack but you can feel exaust leak if you put your hand up near it...)

 

the crack may cause that i would say.. weld a bead across it and see how that works.. oh and yeah dont cheap out on a mani because you'll get what you pay for..

 

It is not creating boost because all the exhaust air is not getting to the turbo. I'd say your problem is the cracked manifold. A friend of mine had a similar problem with not building boost and it was because of a small leak where the turbo bolts to the manifold (1 bolt was loose).

 

ok well im going to take it in as soon as possible to get it welded and well see how it works. any idea how much it would be? i think it would need to be tig welded.

 

That manifold isn't really worth having it welded. You're better off buying a replacement.

 

i know that, im not trying to keep it, just make it work until i can get a new one. i just need it to run clean while i work to save up for parts. im hoping i can get it welded for pretty cheap

 

The turbo is not a ching-chang ebay turbo is it? That could be an issue too.

 

its all an ss auto chrome kit as far as i know. turbo could definitly better but once again its kind of a project car and thats how it came. it will eventually be replaced. i have a buddy in salt lake who will be printing me a base map chip for the ecu this weekend and ill get the mani welded hopefully soon to and well see how it pulls then.