VVT on an LSA

[R8VXF]

Have come across this "simple" conversion for LS engines to retrofit variable valve timing http://www.hotrod.com/how-to/engine/hrdp-1007-gms-.... Looks like it could be an interesting mod to help with drivability on higher power specced cams.

What are peoples thoughts on it?

[R8VXF]

Erm, the new LT platform has this as standard. Specifically the LT4 in the new CTS-V hence the retrofit comment.

[R8VXF]

stigmundfreud said:

wait, ffs VVT not quad cam heads.FFS. Well look, fold the rear seats down for an extra 5mph top end

(mapped)?

[R8VXF]

I guess I'm going to actually have to join up to ls1tech as they might know more. Something like this would be right up ringrams street unfortunately.

[R8VXF]

Not looking at this necessarily just for power gains, more lower end drivability with a more aggressive cam means you can go for more top end power yet still have a nice idle.

[R8VXF]

Still not going to help low end torque though is it?

[R8VXF]

I don't know tbh, this is my first V8 and haven't modified it yet. Was hoping for some collective wisdom

I do drive my car round town a lot so really need the low speed to be nice but would like big top end numbers.

[R8VXF]

Would it help stop the lumpy idle of a higher end cam, or is that more down to overlap?

[R8VXF]

monkfish1 said:

More down to overlap. Any half sensible blower cam should idle OK.

How about an insensible cam?

[R8VXF]

jet_noise said:

R8VXF said:

monkfish1 said:

More down to overlap. Any half sensible blower cam should idle OK.

How about an insensible cam?

Our cars do like a drink

Yup, now down into the 12's and dropping since I have been driving the 1.8 miles to the station everyday

[R8VXF]

It's a car, it will be fine. Never damaged the corsa which warms up slower.

[R8VXF]

stevieturbo said:

Until someone has shown some proven and real benefits from moving to this...you'd be crazy to try

Someone has to be the crazy fool to try it to see if there is any benefits!