vvt

[askkmb]

I got the whole system from an 6.2(l92),(everything that counts as vvt) i got the cam, sprocket, timing cover...so my question is if i could install it in a gen III engine. Does the ecm have sonething to do with it or is it just installing the cam, sprocket...???
Thanks.

[Smittro]

Here this may help some..

GM's Variable Valve Timing System Performance Test - Hot Rod Magazine

You'll need a donor PCM designed for a VVT as GM variable valve timing is controlled (phased) with a signal from the PCM.

Timing is changed @ an optimal time usually under a load only, leaving free rev timing unchanged.

[Smittro]

Power gains will be notable, VVT will be a big difference from the old days of just slipping a lumpy cam into your engine.

[askkmb]

Okay so could i just plug and play with the l92(IV GEN) ecm on an GEN III engine(example: 4.8 or 5.3)? I think the connectors are different. Or does there exist an ecm GEN III with vvt?

[Smittro]

That question I cannot answer sorry.

I'd imagine there are other engine variables that would need considered.

[Smittro]

Here,, there was a few guys talking about this on tech a while back.

Imho there's some good info here.

VVT retrofit? - LS1TECH

[askkmb]

That helped alot.
Thanks.

[Smittro]

No problemo!

I'm VVT myself but on a much smaller engine..lol