Hello all,

Trying to see if anyone is running these cams stock block 2.0? I know GSC does not recommend them due to the higher lift and shorter duration and says they are for stroker motors but what I am wondering is if they will physically work without piston to valve interference. Thanks in advance.

 

I think this has been covered n other R2 threads. GSC said these will not work with stock pistons.


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Thanks for the post but I am aware what Power Divisions says, I have an email from them. I am asking if any member with a stock 2.0 has used them. As we know doing things that others have not have led to discoveries of making more power. Just exploring

 

Yeah, but as they have stated the valves WILL hit the pistons with OEM pistons.

 

I believe they state its very close, I have yet to find anything on direct interference.

 

Put them in and let us know man!

 

I'll find out the answer to this question in the next few weeks. I have a set of R2's to install, along with some 5041 springs and retainers and some GSC valve seals (and h11 headstuds and fp black). This stuff will be installed in a stock 9 head and piston set and was bought on the recommendation of Tom at TSComp, who insists there won't be an issue. With that in mind I'll be checking the seal/retainer clearances and probably valve piston clearance with clay. I'll let you know how it goes.

 

You should be fine as far as the retainer to seal goes with those springs and retainers. I am interested in seeing the outcome but I think there will be an issue with the valve to piston clearance.





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please share your findings, I believe the clearance will be close but I dont think they will contact. Ideally I would like to seem them on a stock bottom end but at this point any comparison is better than none. From the spec on these cams I think there is some power to be made!

 

Sorry, these will be installed on a stock bottom end (and stock pistons). I'll let you know how it goes, but if the valves and pistons smash you'll probably hear me screaming from there, and I'm 12,000 km away .

 

dont know about the r2's but gsc has been known to be very conservative when rating their cams. im running GSC S3's on a stock 2.0 with a stock 8 turbo with zero issues. i would contact english racing to get a 2nd opinion since they seem to use/sell alot of gsc cams.

 

I've quizzed Tom at TSComp quite a few times about the suitability of these cams on a motor with a standard bottom end, and he insists they will work fine, suggesting that GSC wouldn't make a cam that destroys a stock engine. Tom has posted results from these cams and has found, if I remember rightly, that they don't hurt spool and give good top end gains, hense why he recommendeds them, I guess. One of the other R2 threads suggests that the retainer/seal gaps are the biggest issue and I feel I've addressed this with the 5041 springs/retainer set and GSC seals. As far as the piston/valve clearances, I will clay it to be sure but I'm not expecting any issues. I'm sure Tom will be able to produce good power with these, the FP Black, speed density and my other mods on my stock 2L motor, time will tell I'm sure.

 

Any updates......PTV clearance?

 

I recently swapped from S2 to R2 cams and will be doing a before/after with dyno results soon. From what I have data logged I did not lose spool.

 

Stock block 2.0?