Thread: Whats A Good Vvl Activation Point With Sr16 Cams

I Just Recently Install Some Sr16 Cams In My Ve Just Wondering If Anyone Any Suggestions On Vvl Activation Points Right Now I Have Them Set Both Intake And Exhaust At 4700rpm. I Havent Had A Chance To Put It On The Dyno

4800 is most common for stock 20 cams for the most smooth hit point.

The higher you put the changeover, the bigger the hit - that being said you have to get up there to hit it then ha ha

There is a SLEW of threads on this - worth searching in the vvl section a little.

It all depends on your header, but w the typical ssac style 4800 is perfect for both sr16 and 2.0 cams.

it depends on many different things. Get it on a dyno and find where yours makes the smoothest curve.

Dyno is the only real way of knowing. We found my car made most power along with a smooth curve at 5600. GL!

^^^^X2. every engine is different...


/thread

Yeah a dyno would be ideal, he said he hasn't had a chance to put it on a dyno yet.

With std 16 cams and a ssac style header you will be pretty damn close at 4.8k.

Another thing though is that diff dynos will look diff, for example, I used to do all my tuning on a mustang dyno, this is where I tuned my stock cams and std 16 cams and found 4800 was perfect, then once I started using a dyno jet, the curve wasn't as smooth, it had to be raised to be smooth. Now that I'm doing all my tuning on a dynodynamics it reads diff aswell. The power band makes peak power at a diff rpm.. so really the cam switch is not a big deal, get it close. But as I said the header and cams are the biggest factors..

Most of you guys are saying 4800 would that be for both intake and exhaust cam?

Yes that is definately a good starting point until you hit the dyno, then you can make your changes from there.

You will be fine between 4600 and 5000. Mine are set at 4600 - dyno proven.

Peace