Vortec Intake Manifold

mattw · Oct 7, 2003

Whats the deal with the 96+ vortec intakes?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2436110036&category=36474

Why does no one ever use them? Do they have horrible flow characteristics? Do they blow apart under boost? All of the above?

Thanks,
-Matt

JSM · Oct 7, 2003

The injector system on it, reminds me of fresh air supply for a fish tank.

Basically it is garabage for performance.

let alone what plastic woudl do with boost and some heat.

mattw · Oct 7, 2003

What kind of injector system is it? Are there not regular injectors there and a fuel rail?

-Matt

JSM · Oct 7, 2003

It has 1 big goofy looking squarish box, with tubing running to each cylinder. All buried inside intake itself.

Injector is like $450 for a new one.

Have a friend that has this setup on a 4.3 in toyota truck. Works good for a low power reliable car, but not a perfomance intake by any means.

mattw · Oct 7, 2003

I think thats CPI(Center Port Injection) you are thinking of.. GM used it 93-95. With CPI there is 1 injector and 6 nozzles.. I though that GM moved away from that in 96 as the injector was prone to failure.. I am fairly confident that this intake acutally has 6 real injectors in it...

-Matt

ItsMyTy · Oct 7, 2003

uh... check out the picture at the bottom of this page
http://www.cfm-tech.com/96+VortecCPI.htm

that looks like a high performance setup to me :roll:

mattw · Oct 8, 2003

guess I was wrong... I can't believe GM still uses that crappy CPI setup...

-Matt

Vortec Intake Manifold

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ItsMyTy

Life is beter at 25 PSI

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