4drcivicb18a

I have a dpfi d15b2 engine and im doing a mpfi swap to it and I was wondering if I put the d16a6 si cam in the d15 head, Do I have to adjust valve springs or lash or what ever or just put it in? If anything what has to be done??

Bone1

reset lash and use a 96+ Y5/7/8 cam gear to cure the 1/2 cam timing issue.

4drcivicb18a

ok how do i reset the valve lash? And whats up with the 1/2 timing cam issue? what will happen if i just put the si cam in with out doing anything?

ZC4ME

Ok, well obviously, the valve lash will have to be reset because the A6 cam has a different profile (larger lobes) and you will need to accomodate for that. If you don't adjust them, the valvetrain will most likely be noisy and will result in damage The other thing Bone is talking about is the fact that using the A6 cam and gear, the result will put you a half a tooth off in the timing. Using a Y series cam gear will correct this. You timing will be off if you don't fix this.

4drcivicb18a

Thanks for explaining that for me. I will adjust it for the cam. Do you know if the 1/2 of is retard or advance cause its going to be N/a so im probably going to advance the timming a little anyway? And does anyone know what it has to be reset at?

Bone1

both or either

if your 1/2way into the forest, are you not 1/2way out?

4drcivicb18a

ooooookkk.....

hatrack48

go find a a6 head better proformance

4drcivicb18a

i heard it isnt any better performance. Its just the cam!

crx9-11