hey guys, just got a saab turbo from one of techs. he has no idea what size it is. all i know is that it is a garrett. it might be off of a 89-90 900. anybody have an idea what size it is? tknxs

 

if I rememger correctly it's either a .40 or .45 trim turbo...nice quick spooler but craps out after about 15-17psi or so....

 

thnxs for the info

 

Or it could be the smaller t3 .48 on exhaust side and .42 on compressor side. perfect for sohc turbo set-ups, crappy for dohc set-ups if intercooled. I ran one for a while on a sohc and a dohc.

 

thnxs for the input. i,m going to contact saab, and see if one of the #'s will work off the turbo.

 

It will say on the housing, look on the exhaust housing for a .48 or any other number.....

 

thanks again, i'll let you know what i find out.

 

yeah sometimes the a/r is on the inside of the compressor outlet(area you see the blades).

but not always

 

Is there a tag on the turbo with the part number or model number? You can usually look that info up and find the specs.

 

B16Ahybrid.........

How much boost will the .48 .42 handle before spiking bad and crapping out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedD15B7 &raquo;</TD></TR><TR><TD CLASS="quote">B16Ahybrid.........

How much boost will the .48 .42 handle before spiking bad and crapping out.</TD></TR></TABLE>

depends on the engine. For a sohc you could probably run 12psi with no problems.It's probably the happiest between 8-12psi (most efficient).
For a dohc i don't even recomend it. If it's a low boost application without intercooler then it's fine up to about 5psi no more. it would be good for auto x where you need instant spool but not a lot of power. If your runing it on a street car and want some decent use (power) out of it you'll need to run more boost but you'll need a intercooler because it will heat up the charge temp fast. What i've noticed is people who run this turbo on a dohc (b16 and b18) with an intercooler have lots of pressure loss. I would lose about 3-4psi (from about 8psi, then would drop off to about 4psi by redline). Some people have run this turbo up to about 8psi non-intercooled and experienced no (or minimal) pressure loss. I know it was the turbo running out of stean (out of it's efficiency range and not able to provide enough boost pressure) and not a leak somwhere because for one i had my intercooler pressure tested, two 4 others with simular set-ups (same engine,turbo,and intercooled) experienced the same problem, three i swapped turbo's and the problem went away ( i didn't change anything else)....
IMO this turbo runs on a sohc (d15 or d16) nicely, and acts (spools and makes power) like a medium sized t3t4 does on a dohc....My d15b7 made 139whp on 5psi of boost, not a ton of power but good for only 5psi and no fuel management

 

Cool....im running it on a D15B7.....Im planning on running 12 to 14psi in the future though and i am scared thats not gonna do it. Will i loose much spoolup by going to a T3/T4 with a .48 ex

 

not sure, i've never ran a t3t4 on a sohc............but i'd imagine for higher boost applications it would be good

 

checked the turbo again today after spraying it down with cleaner it's a .48 trim. don't know if it's worth using needs to be rebuilt. the shaft is locked up. my tech says he can do it,but i'm still unsure. i wanna thank you guys for all the help. nobody responds to my questions on the other forums.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by solsteeler &raquo;</TD></TR><TR><TD CLASS="quote">checked the turbo again today after spraying it down with cleaner it's a .48 trim. don't know if it's worth using needs to be rebuilt. the shaft is locked up. my tech says he can do it,but i'm still unsure. i wanna thank you guys for all the help. nobody responds to my questions on the other forums.
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Anytime man, thats what we're here for.