Turbo on a GM quad 4?
0.5 BAR
Joined: Jan 2004
Posts: 54
Re:Turbo on a quad 4?
Not done by any of the regulars here.
Allready been quite a few posts asking about quads and Turbos.
Your problem is going to be aranging for a presure oil feed to the turbo.
It would be easier if your talking about a 4 stroke quad but then you didnt bother to mention any specifics.
Allready been quite a few posts asking about quads and Turbos.
Your problem is going to be aranging for a presure oil feed to the turbo.
It would be easier if your talking about a 4 stroke quad but then you didnt bother to mention any specifics.
Thread Starter
0.0 BAR
Joined: Apr 2003
Posts: 15
Re:Turbo on a quad 4?
I should have been more specific . I want to turbo a quad 4 engine from an older gm and put in a fiero . How much boost can the stock internals take I would like to run around 10-12 on the street , it is not a big deal if I have to beef it up a little.Thanks
0.5 BAR
Joined: Apr 2003
Posts: 188
Re:Turbo on a GM quad 4?
well, you may want to change a few things before you try turboing one of those motors. they had about a 20% head gasket failure rate in NA form, i can't see them lasting too well under boost.
i know ACE engineering turbo'ed one that put down 325hp. the thing that blows on mid engined cars is the lack of decent intercooling. i have an 86SE fiero and a 91 turbo MR2 and neither really has any good options for intercooling save something like an air to water or water injection.
www.fiero.nl is your friend.
http://www.fiero.nl/forum/Forum2/HTML/040182.html (400HP turbo quad4 buildup).
i'm assuming you already know everything that's involved with swapping that engine into your fiero?
i know ACE engineering turbo'ed one that put down 325hp. the thing that blows on mid engined cars is the lack of decent intercooling. i have an 86SE fiero and a 91 turbo MR2 and neither really has any good options for intercooling save something like an air to water or water injection.
www.fiero.nl is your friend.
http://www.fiero.nl/forum/Forum2/HTML/040182.html (400HP turbo quad4 buildup).
i'm assuming you already know everything that's involved with swapping that engine into your fiero?
1.0 BAR
Joined: Feb 2004
Posts: 460
Re:Turbo on a GM quad 4?
I have a sunfire with one of the quad 4's in it and those motors are WEAK!!! They won't take much boost for very long. Personally I wouldn't go any higher than 7psi without beefing up the bottom end. Almost a guarantee you'll throw a number 3 rod bearing!! But if you want more info for them goto www.j-body.org, just watch out for all the winers. Oh yeah you might as well just do a huge search there cause asking questions usually just gets a flame contest started. There is some good info if you can weed through the bullshit...
