2.3l turbo

[blackcrow_75]

Hi all i have a 88 mustang 2.3l turbo. The turbo set up i have on it is a t3/t4 hyb. With and aftermarket turbo manfold with a 38mm external waste gate. I done check all the intercooler piping and bov for leaks none all gasket good. My wastegate has 19psi spring in it now. My main thing now is when im giving it gas my boost gauge want to flutter around 12psi. Than to 19psi real fast till i shift gears like in 2nd and 3rd. I cant even get to red line it starts doing it is it the wastegate bad. Any ideals the bad thing it done this with a 10psi spring as well any ideals would help. thanks

 

[Red_LX]

What are the specs on the turbo?

 

[blackcrow_75]

turbo spec

48 exhust. 60 comp.the turbo came off a 88 saab 9000 turbo that was pushing 20psi of boost with out any prob

 

[65ShelbyClone]

48/60 what? Trim or A/R? That doesn't sound like a hybrid turbo to me...

 

[Red_LX]

That's not a hybrid, that's just a regular T3, if it is off a saab.

Do you have a 3" downpipe and 3" exhaust?

I'm guessing that turbo is way too small for everything else you have already done.

 

[blackcrow_75]

turbo

it ar it a t3 exhust housing with a t4 comp housing i can post pic if you like

 

[Red_LX]

Yes please do.

If you have a T4 cold side on a .48 T3 hot side, then that's probably why you're having boost control problems.

 

[blackcrow_75]

the pic

here the pics

 

[Red_LX]

That doesn't look like a T4 cold side to me...

 

[65ShelbyClone]

That looks like a generic T3 to me, but it's hard to tell without a picture of the compressor wheel or more importantly, an inducer and exducer diameter.

 

[Rcdriver45]

dude sweet engine please tell me what all did you put on it.

 

[blackcrow_75]

my boost prob

i found out why i was fluttering it was not the turbo or the wastegate it was the vacume line was way to long and to small dim. prob fix and it will move now

 

[\\J//]

how much your set up cost you? whats required? im buying a 4 banger soon and might be buying a5.0 to make a swap but im feeling lazy nowadays and im thinking about just keeping the 2.3 and running a turbo in it lmk thanks!

 

[blackcrow_75]

i have around 1500.00 in it the only thing you need is a 2.3l turbo motor the ecm and the vainair meter that would be the quickest route