sr20det gt2871r not making boost!!

[Yousefelk]

hey guys i have an sr20det with a gt2871r turbo. the problem im haveing is it wont pass 12lbs of boost i have tried a ebc and mbc and i dont have any boost leaks. its pissing me off. because im suppose to be running 18lbs. what are the possibiltys of it being a bad wastegate because i did buy the turbo used. any help is appreciated

[ultimateirving]

is wastegate aftermarket on the manifold? or built in to turbo. if the latter, it could be a bad Wastegate actuator. best bet is to borrow someone elses and see if it fixes the problem.

[Yousefelk]

its an hks wastegate that came with the turbo. im trying to see if a friend of mines would let me borrow his. btw what do you mean by "latter"?

[ultimateirving]

is wastegate aftermarket on the manifold or built in to turbo. if the latter,.
latter is the second half after the "OR" in italics, and i have an hks wga too, which tells me its probly not ur wga. but try it anyways if u haveone u can borrow

[fliprayzin240sx]

Is the wastegate an adjustable wastegate? Adjust the shaft by shortening the length and giving the flapper more tension.

[nsfmike240]

the wastegate spring might be too soft so thats why it not building up more boost , u can try to order a stiffer wastegate spring so it can hold that amount of boost, its real simple to change out.