If you just purchased them you got the latest. Look at your cam card/box for more information.

 

speaking of the s2 mivec cams, would just beehive springs suffice?

 

Yeah, I ran with just beehives for 15k with no issues I only stopped because I went to my new motor with Kiggly valvesprings.

 

Just got my S2's havent put them in yet... Im only looking at reving my motor to 8k max. I dont drag race the car. A couple shops told me I should be fine on stock valve train if i dont rev it to high any oppinions? I would rather not do the springs and retainers unless I were to pull the head down the road.

 

It'll work for awhile, but ultimately the valve acceleration from the increased ramp rate and higher lift will shorten their life. FP Beehives are 220+install...inexpensive really.

 

Nice comparison!

Apologize for going off topic here...but a comparison between the Cossie M2/M3 vs. GSC 1/2/3 has been made several times. I bought my Cossie M2s about 2 years ago, and at that time they had out-performed the GSC 1/2/3. What has changed in the last 2 years with the GSC's?

 

I have allowed this thread to get off topic a little since really this is about turbo and nothing about cams.

However,

Cosworths havent changed their design ever (other than adding the M line after the illfated 272), Greg is constantly reinventing the lineup. I dont think I have personally seen a back to back of the GSC vs the Cosworth other than the tests we have done where it was same car, same mods, same dyno.

I have yet to be impressed by the M2, the M3 only barely holds a candle to the S2 at this point. Cosworths cam card is a joke and makes no sense to me and many that know how to read them (even when you disregard the errors on the card). They idle rough and are a bear to smooth up, make power over stock yes, but can be trumped by a few other cams on the market relatively easy I feel which also idle better.

I know you werent calling them out and making an honest question, but I wanted to highlight my personal thoughts on them.

 

Again, apologize for going off-topic. 2 years ago the current design of the GSC cams (whether 1, 2 or 3) did not perform as well as the Cossie M2s. I saw many dyno graphs which proved this point, which is why I went with the M2s. If GSC has changed their designs since then good on them.

 

No worries

 

Aaron i sent you a pm to not go even more off topic lol

 

Thanks for the info Jason. I don't know though, are you sure about the td06h? Back a year+ ago in the Evo Red Turbo Data thread I had a pretty good discussion with Grocmax, JKav, and a couple others about the Red turbine wheel. It is not an MHI wheel, it has the FP logo cast right into the backside. Scott showed pictures of the raw casting. Later, talking with Robert on the phone I got the distinct impression it was an FP designed wheel, not anything off the shelf. The turbine wheel discussion in that thread started on page 31, there are posts sprinkled throughout the next 6 or 7 pages. Post #461 is a good place to start:

https://www.evolutionm.net/forums/ev...o-data-31.html

Gary

 

You are correct, it is an fp designed wheel. It is basically a tdo6h turbine wheel that has been modified to have 11 blades versus 12 like the standard MHI turbine has. The reason that fp does this is to reduce backpressure and help the flow out. By taking a blade out, it also makes it unessasary to clip the wheel and this way it doesn't reduce the turbine efficency like the clipped 12 blade turbines. The fp wheel has the same specs for the inducer and exducer as the MHI tdo6h wheel with the exception of the 11 blades and inproved aero. Fp usually will modify anything they can to yield better results, and this is a prime example of their dedication to producing the best turbos possible. Thank you Fp!

-Jason

 

Great info all throughout this test Aaron I am compelled to ask if the Kelford 272s have anything to offer? Sorry for another off topic

 

aaron, quick one, is the black recommended on the stock block daily driven?

what boost do you think i should run? OR would a red or even BBK Full be more fun?

Thanks.

BTW job well done. i am looking to come up to NW soon for work i may stop in the shop

 

Rav,

that would be awesome if you can stop by. I think the Black and a stock block are a match just as much as the Red and stock block. It allows for more power and only sacrifices the bare minimum of spool.

Aaron