Saab 9000 turbos, I've got three

[theBeline]

Ok, I can get three Saab 9000 turbos for 79 (working on 50) bucks a peice. A couple of things.

Is this a good deal?
Are they worth it?
What exactly are they good for?
Yada yada.
Does any one want one?
Should I get them?
Blah Blah, any thing else..

Thanks, not too familiar with turbos at the moment, if you could fill me in that would be great.
-MiKe-

[AccordEpicenter]

well im not sure, what kind of turbos are they?

[Justin86]

I want to get a T-25 and if these Saab turbo are similar I would be interested in getting one.

[theBeline]

Bah! You mean to tell me that out of everyone on this board no one knows what kind of turbos are in a saab 9000? I beleive they are similair. But I'm not sure.

[PhydeauX]

I'm pretty sure its a T3, don't quote me though.

[edit]
5 sec or research and I'm quite confident that you can quote me. You didn't specify a year, but it looks like most if not all came with t3 turbos
[/edit]

andy

[carotman]

Then if it's a t3 I want one

[bobafett]

yeah post up at www.homemadeturbo.com and see... but i agree with the others, its prolly a t3. in which case thats one of the most common turbos to find on stock turboed cars, so if you got a manifold built for the t3 and used the saab turbo for now, there are LOTS of other t3s you could use if you wanted a different one. but if the turbo is in good shape even 100 is a good deal.

[Justin86]

I really want one now.

[theBeline]

hew guys, I'll see what I can do about pickin them real quick like, then I'll get back to you for a deal. What I can get for 79 (50 soon): Turbo, waste gate, BOV, intercooler, pipeing (like it'll help, we'll need to fad our own for our cars), whatever else I feel like picken out of 'em. I hate to be a dink, but if I sell them out, I will raise the price.

But think about it A20A has got what 97 horses? A B16A has got something like 160 right? Take however many horses your motors got and substitute it in for 'n' f(n)=1.54n and f(n) will give you aprox how many horses you'll get from 8psi.

For me, with a used B16A, at 100% efficiency, F(160)=1.54(160)=246hp

With a turbo you'll be lucky to get 75 or 80 percent efficiency, so change it to f(n)=1.43n and with a B16A you'll get f(n)=1.43(160)=228hp, still decent, considering the weight of our cars. Especialy mine... :-p

[edit] Almost forgot, with 80% efficiency, and A20A will pull f(98)=1.43(98)=140hp [/edit]

[edit] Where in hell can I find a turbo manifold for a B16A? Where in hell can I find a turbo manifold for an A20A? Where in hell am I going to get the money for all the new tires? [/edit]

[Justin86]

Doing the work yourself can save a lot of money. I plan on spending $500 for my turbo set up, but I would go up to $1000 if I had to. Also what be the numbers for 20psi insdead of 8psi.

[bobafett]

the numbers wont work with 500-1000 so dont worry about it.

[theBeline]

well lets see. assuming an engine runs off pressure already (14.7 psi, at sea level) so an A20A at 98hp runs off 14.7psi so f(98)=1(98)=98hp. If you double the psi to 29.4psi you would double the power, thus f(98)=2(98)=196hp. So by 14.7/14.7=1 and 29.4/14.7=2 and f(n)=1n is at 14.7psi and f(n)=2n is at double that,we see that the multiplier is a fraction of n/14.7 where 'n' is the psi provided by the turbo + atmospheric pressure.

The equations earlier were found this way:
with a turbo at 8psi (14.7 + 8)/14.7=1.52
so the equation would be f(n)=1.52n
this can also be found by (14.7/14.7)+(8/14.7)=1.52
if the turbo is running at 80% efficiency then it goes (14.7/14.7)+(8/14.7).8

all in all forget what I just said and use this equation to find approx hp from a turbo f(p,e,n)=(1+(p/14.7)e)n where 'p'p is psi provided by turbo, 'e' is turbo efficiency, and n is the motors NATURALY asperated horsepower.

please forgive my spelling.

[Justin86]

Well if you do everything "right" like getting all new parts there is no way it can be done for under $1000. But I plan on cutting all the corners and getting used parts and doining all the work my self to save money.

[theBeline]

ditto, and I understand the 'doing it right' part. But thats in the way or pipeing and reworking the engine to handle the boost. When you can get a good starter turbo for fifty or sixty bucks, and be in a place where you can upgrade freely in the future. Thats a good spot to be in. Seeing how all the 'doing it right' will cost you around 700, the motor 250, the turbo and crap 50, that a bangin deal!

[Justin86]

Your money Beline. I will run a low psi turbo set up with the stock A20 except fuel pump and injectors. When I have more $ I will upgrade all the internals to run a higher psi.

[theBeline]

in an A20? hope you plan on some serious internals, our stock engines stink. but about the low psi thing, the saab turbos, to the extent of my knowledge, run around a max of 10, more around 8 from what I've heard around here. Either way, like I said, it's a good starter turbo, seeing how the flange is exactly the same as a T03/04. And don't get me wrong, I'm not doing all that in one run. Over the course of two years.

[RedneckRicer]

if i remember correctly the ring landings of our stock pistons are rather weak and would probably crack under much more boost, let alone if your motor has 150k + miles, i'm about at 200k now, to get custom forged pistons from JE, 88TurboAccord said it was $800 for just that. on another note, if the stock pistons would be capable of running a low boost system, i'd love to be prooved wrong, even if it didn't add much power, the blow off valve would just be bad ass...

[RedneckRicer]

damn this and reposting the same thing twice, so this was uhhh the post to uhh say something like " yeah turbo's rock "

[AccordEpicenter]

yeah if you wanna be safe, it seems like 6-7 psi is the upper limit without compromising the pistons, and custom forged ones with rings are more like $650 from what i know... from wiseco

[theBeline]

what about in a B16? what do you think the upper limit is on those? where would I find low compression pistons? and where would I be able to get it bored? and where can I get the head polished and shmit?

[bobafett]

just go to a machine shop or performance shop. they should be able to order any parts you need and do the work on your block

btw its confirmed, the saab turbos are definetly the t3 style flange, so that makes things easy enough! (jeff @ homemade turbo confirmed this for meh)

[Justin86]

Yea I just want to run around 6psi or what ever will keep my internals safe until I can afford to upgrade them.

[theBeline]

ditto, I mean, how heavy are our cars? 6psi will rock them!

[Justin86]

So what is the deal on these turbos. Did you get them?

[theBeline]

oh, you want one?