another solid lifter post....

[maxf31]

I'm in the process of building an aeb head for racing purpose since my last one dropped a valve during a race ( circuit racing ).

My question is since I dont have an unlimited budget, can I get the cat 3652 cams and later on switch to solid lifters ? Will I be able to keep the hydro cams or I must buy solid lifter cams ?

And if I do a solid lifter conversion and I change cams later on I guess I need to reshim all the lifters right ?

[bobqzzi]

You need to have a compatible camshaft to run the solid lifters.  How about a bit more info on what kind of raong, rpm and hP you are doing?

[fast_a2_20v]

Why is that anyways bob? I would have assumed the hydro cams would simply be "conservative" on the mechanical lifter setup. I really can't see a reason they wouldn't work though, other then odviously under-utilizing your newfound valvetrain prowness.

[maxf31]

Thats what I tought too...

I had a holset hy35 (9cm2 exhaust housing) but since the broken valves damages the turbo, I will upgrade to a hx35... (12cm2 exhaust housing)

I didn't had the chance to dyno accurately my last setup but with a blown t3 gasket I made 260whp@18psi

But with the new turbo and the cams I want around 350whp@22psi.

As for the rpm limit... I don't want to run to 9000 but I would like it to be realible at 7800-8000.

[BoostdEuro]

if you only plan on revving it out to 8k area, no need to go solid lifter IMO. some aftermarket valve springs should be able to handle it

[Dizzy]

if you only plan on revving it out to 8k area, no need to go solid lifter IMO. some aftermarket valve springs should be able to handle it

Based on what?  Where do you guys get off thinking 8K is safe with springs, especially on a higher mileage setup that is daily driven? 

[bobqzzi]

Why is that anyways bob? I would have assumed the hydro cams would simply be "conservative" on the mechanical lifter setup. I really can't see a reason they wouldn't work though, other then odviously under-utilizing your newfound valvetrain prowness.

It doesn't have anything to do do with how "wild" a cams specs are, but rather the ramps from the base circle to the lift portion..solid lifters have milder ramps so as not to "slam" the cam into contact with the lifter face.  Hydro cam s are more agressive sice they never lose contact with the cam.

[maxf31]

ok,

So my best bet would be to get a solid lifter camshaft custom made with the same specs as a 3652 hydro  ? So it would work with both types of lifters ?

Or do you think the 3753 would work with hydraulic lifters ?