i have a t30b garrett with .42 a/r, putting it in my 10:1:1 engine, possible?

[Guest mescalinedreamz]

i bought my turbo volvo back for 30 bucks from my sis-inlaw. She didnt want it anymore. So i took everything good out of it. I think the turbo out of it is a t30b, not sure thoguh, its an 87 volvo 760. Has 0 shaft play!!! ran great!!. so im thinking of putting it into my 240z. Now how mjuch of a stupid idea is this if i have a 270,280,460 lift cam, 10:1:1 high comp, flattops and n42 head. Custom intake with 74mm tb, plus haltech fully probrammable fuel injection. Also have crane ignition that can retard ignition when needed. PLus the haltech can control other parts of the turbo crap. Like wastegate or something. Also have the volvo intercooler too!

 

So can i do this saftely? Aslo i have supercharged grand prix injectors which put out plenty of fuel, also i have decided to use the volvo gas tank which has a small inter feeder pump, which then goes to a larger external volvo fuel pump which pushes out 55-65 psi.

 

I have everything i need except the zx turbo exhaust manifold and the oil thing that goes under the oil filter to supply the turbo with oil. Also this turbo is water cooled too, so im going to retrofit the volvo radiator in the z. PLus i will be using the stock volvo intercooler.Well what do you guys think?

 

73' 240z 270/280 460 lift cam-haltec f9 programable fuel injection-crane adjustable timing ignition-grand prix supercharged injectors and 74mm tb-scca roll-cage-ported n42-ported custom intake-lowered-front&rear strut bars-stiffened frame-fender flare

[ecp48]

Hey guy,

 

A couple of problems:

 

1. you are at the limit (10:1) for operating on pump gas anyway.

 

2. the volvo uses a volvo specific base/mounting to the manifold, it would need to be milled level. Look at it, uses an oval recess in the base to meet the manifold.

 

3. This isn't the best turbo to use for boost/performance, becuase it is a low boost that comes on at a low revs. I have an 84 240T, running a 1990 760T motor, B230FT. The boost is lower than produced by the original turbo and the motor dies on top end. If your compression ratio was about 9:1 to maybe 9.3:1 might be doable, but not great performance.

 

ecp48

[Guest mescalinedreamz]

i was just looking at the possibility for a little more hp. If it isnt going to give me anything then i wont do it. But i thought it would give me a tiny bit more. PLus witht he haltech i can control everything, and retard ignition on demand. I dont know much about turbos, but i do remember hearing that since smaller turbos are spinning faster, that boost does come on earlier. Now i remember the volvo boosting at 3000 rpms, or maybe 3500 rpms. So you are saying this is not a good idea at all, even with real low boost, i dont plan on putting more then 3 or 4 psi, maybe even 5 psi of boost on it. If i did put this turbo on,,what do you think the effects will be. Tell me how it would feel driving etc. Get in the car start going down the road, bla bla. thanks!

[wheelman]

Sounds to me like ecp48 is trying to tell you that the money/time invested to make it work won't be worth the performance increase in the end. If you're already at the hairy edge with the compression you're running then throwing a turbo on top of it is a recipe for disaster. Even pulling timing and dumping tons of fuel into the system won't always prevent the engine from self-destructing and will always hurt performance.

 

Maybe you should just do it and let us know how it turns out when you're done.

 

Wheelman