PRC 250CC Castings/G6X3 Cam results

[MikeOD]

I've been surprised by those. Mine looked fine with 38K on it when I opened it up...but now it looks even better in the trash can with an LS2 damper in the engine. They seem to be hit or miss on the LS3's. Some people have no problem with them, some have them fail fast with everything stock.

[IDEALG]

ugh too much popcorn. waiting for eye buldging results

[ULTRAZLS1]

Havent heard anything from them today yet.........

[ULTRAZLS1]

Just got off of the phone with them. Car is almost ready to fire. I'll have numbers by tonight or tomorrow. Picking up the car sat so I wont have drive impressions, vid or dyno sheet until at least then.

For those wanting to know.

- Pushrods= 7.500

- No flycutting was required. They do offer better clearance. This cam would not have cleared on stock heads with slight milling and a .040 cometic.

- Pre-load was one half turn. He didnt give any other info. I can try for a different term if this isnt sufficient.

Troy

[IDEALG]

Originally Posted by ULTRAZLS1

Just got off of the phone with them. Car is almost ready to fire. I'll have numbers by tonight or tomorrow. Picking up the car sat so I wont have drive impressions, vid or dyno sheet until at least then.

For those wanting to know.

- Pushrods= 7.500

- No flycutting was required. They do offer better clearance. This cam would not have cleared on stock heads with slight milling and a .040 cometic.

- Pre-load was one half turn. He didnt give any other info. I can try for a different term if this isnt sufficient.

Troy

sweet cant wait

[S3XPanther]

Originally Posted by ULTRAZLS1

Just got off of the phone with them. Car is almost ready to fire. I'll have numbers by tonight or tomorrow. Picking up the car sat so I wont have drive impressions, vid or dyno sheet until at least then.

For those wanting to know.

- Pushrods= 7.500

- No flycutting was required. They do offer better clearance. This cam would not have cleared on stock heads with slight milling and a .040 cometic.

- Pre-load was one half turn. He didnt give any other info. I can try for a different term if this isnt sufficient.

Troy

No flycutting? That's a win for TSP's heads.

[ULTRAZLS1]

Originally Posted by S3XPanther

No flycutting? That's a win for TSP's heads.

YEP...no flycutting.

They advertise an extra ~.040 of intake valve clearance like I have said. I just wasnt going to take their word for it. No one has tried a combo such as mine with them yet...

[S3XPanther]

Originally Posted by ULTRAZLS1

YEP...no flycutting.

They advertise an extra ~.040 of intake valve clearance like I have said. I just wasnt going to take their word for it. No one has tried a combo such as mine with them yet...

This goes without saying, but definitely be sure to keep us up to date. I'm very interested in running a similar setup. I was originally going to go with the G6X3, but I didn't like the idea of flycutting. So I then decided the 231/236 was the way to go. However, your results may very well change my plans.

In a related note, do you know if their new "highest flowing" castings offer the same clearance?

[ULTRAZLS1]

Originally Posted by S3XPanther

This goes without saying, but definitely be sure to keep us up to date. I'm very interested in running a similar setup. I was originally going to go with the G6X3, but I didn't like the idea of flycutting. So I then decided the 231/236 was the way to go. However, your results may very well change my plans.

In a related note, do you know if their new "highest flowing" castings offer the same clearance?

I am not positive...but I think they are of a similar design except the intake runner is in the 26x cc range similar to stock as to where these are 250cc.

Other than that the valve config/clearance should be the same. But dont quote me on that.

BTW...I just noticed your profile pic in relation to your name...thats great. Anchorman was the shit. Ome of the funniest movies ever made IMO.
Are they coming out with another one? I thought I heard they might be a little while ago.

[Kyle2k]

Originally Posted by ULTRAZLS1

I am not positive...but I think they are of a similar design except the intake runner is in the 26x cc range similar to stock as to where these are 250cc.

Other than that the valve config/clearance should be the same. But dont quote me on that.

The revised valve angle/deck height is what gives you the added clearance. So if they are the same valve angle, etc then yes. The port volume shouldn't have anything to do with valve clearance.

[FLP]

Base tune is in the car and it has been fired up Troy. Sounds pretty mean that's for sure. Expect it on the dyno tomorrow.

-Tony

[ULTRAZLS1]

Originally Posted by Kyle2k

The revised valve angle/deck height is what gives you the added clearance. So if they are the same valve angle, etc then yes. The port volume shouldn't have anything to do with valve clearance.

Yep.

[ULTRAZLS1]

Originally Posted by FLP

Base tune is in the car and it has been fired up Troy. Sounds pretty mean that's for sure. Expect it on the dyno tomorrow.

-Tony

Awesome.

Did you guys end up using the katech tensioner and shorter belt or make the stock belt tensioner work? I e-mailed you as well but hadnt got it last time I checked.

[FLP]

Sorry running around in the shop today and just checking emails now.

Yes, we used the Katech and a shorter belt. K060798 is the belt we used on your setup.