CJV, out of curiosity do you have the numbers for the stock GT3 cam available?

 

I'll see if I can get those from Rob as I have stock GT3 intake and exhaust cams also. The GT3 cams use hydralic lifters, however the cams are not vario lift, only vario timing. The GT3 Cup and GT3RSR use solid lifters.

 

Hehe that's a great post:P The "made in spain" one seems to be the way to go eh?

 

Alex,

You need to determine what your power/torque objective is going to be first.

 

You should compare the casting process of the new case to the old one before determining which is better. There have been issues already with the units, both with the ones complete and sold with the car and the others bought from Spain. The process is cheaper there.

 

Isn't there a significant difference between bar and cfm? Why don't we use CFM to gauge this ****? I mean, I could be making 1000psi but if its only in a 1/8 inch tubing who really gives a care?

 

Stephen,

In the thirty plus years I have been having my own motors built, casting problems have always been something to be aware of, no matter whose product. It has been a common practice of mine to pressure test a "block or case" before proceeding with costly machine work and assembly. If there is a casting problem and you pressure test, the problem becomes very evident right from the start. Why take a chance and skip the pressure test?

As a side question, I am aware or Kevin's leak in an oil passage. I am also aware the case is being successfully used in the race programs. Compared to the amount of cases manufactured I believe this problem is being exaggerated a bit. If the case doesn't have a manufacturing flaw it is definitely a stronger case.

 

ooook time for new rods I guess