20V head on 4AGZE

[Lloyd]

Probably asked before, but I'm asking again cause I cant find what I want.

Can I simply put the 16V cam gears on the 20V head?
Are the valve going to hit pistons in normal operation? (Assuming the cambelt is in the right place )
The breather from the rocker cover does feed into all the throttles does it? (Need a feed for the MAP sensor)

There will be a few more things but I cant think of them right now.\

Ta.

[Mr Revhead]

yup cam gears will swap over ok.

not sure what you mean by the breather though....
do you mean the one that comes from the pcv valve into the rail above the furl rail? if so yes that should be fine for a map reading.

[Lloyd]

Yup, thats the hose I mean, And thats just what I wanted to hear

Cheers dude

[matt dunn]

Can I simply put the 16V cam gears on the 20V head?

yup cam gears will swap over ok.

Umm, No the 16V cam wheels do not fit onto the 20V cam's, and you cant fit the 16V cams into the 20V head so I disagree with that.

In normal operation the valves will not hit the pistons.

Matt

[Mr Revhead]

blonde moment
wtf was i thinking!

yeah the intake cam will be a prob, weld up the vvt one then maybe?

just goes to show, always double check info off the net!

i owe you a beer matt

[vvega]

ok you can use the ex cam though it will not allow you to set the cam timming correctly.......

best option
use the 20v cam gears and a 20v timming belt
and the 20v water pump and head gasket
its a bolt on job.......
seriously its just that eazy

[Lloyd]

Had a quick look at the old head gasket and it doesn't seems to look like it would be an issue with the 20V head. Are there some slightly different holes?

Oh, and whats the go with the inlet cam on the 20V cams? Where would I be welding, can you not just leave it as is?

And do I just use the standard timing marks with the 20V belt?

Ta

[Mr Revhead]

20v belt will be the one.

maybe matt will be nice and post pics of his welded one?

irc needs to be tacked on the outer edge, if you look at it you shoudl see where the gap is, but im not 100% on that so check it out

[Lloyd]

Sorry, more questions.

The VVT solenoid is triggered from 12V, correct? If so then I could whip up an adjustable shift light type circuit and have the output going to the VVT solenoid (since I'm using the GTZ computer) and have it switch on that way?

Still no valve clearance issues with the cam advanced 15° using 16V pistons? (Bit hard to trigger the VVT and turn the engine over with it out of the car and having no oil pressure )

Cheers

[matt dunn]

Sorry, more questions.

The VVT solenoid is triggered from 12V, correct? If so then I could whip up an adjustable shift light type circuit and have the output going to the VVT solenoid (since I'm using the GTZ computer) and have it switch on that way?

Still no valve clearance issues with the cam advanced 15° using 16V pistons? (Bit hard to trigger the VVT and turn the engine over with it out of the car and having no oil pressure )

Cheers

yes you can wire it up that way.