GSC S1 vs. S2 vs. 272
#17
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Ok so after some time has past and i spoke to some people about this subject I was almost leaning towords getting the s1 so i could get more low end torque. But then I reread this thread and English Racings thread on big cams small turbo. Now im want the s2's. Even if im not happy with the low end It will just get me to purchase a FP red or even that new black that just came out to make up for it.
Heres my question. Im going to order the S2's and GSC's beehive springs and intall them. On their site it says "these cams can run on stock ecu with custom flashing" of course i plan on getting the car tuned after but will I be able to drive the car a couple of hours to get it tuned? Of course I would be milking it the entire way (no boost etc). Or would i have to crudely tweak my tune to make sure things are safe?
-Ethan
Heres my question. Im going to order the S2's and GSC's beehive springs and intall them. On their site it says "these cams can run on stock ecu with custom flashing" of course i plan on getting the car tuned after but will I be able to drive the car a couple of hours to get it tuned? Of course I would be milking it the entire way (no boost etc). Or would i have to crudely tweak my tune to make sure things are safe?
-Ethan
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I am also in the same situation, i have a Fpgreen but cant decide on S1's or S2's i have searched and couldnt find it but does anyone have a dyno graph overlapping S1's and S2's. Has anyone upgraded only the cams from S1's to S2's and have a graph of both to show the difference.
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So i was speaking to a friend today that seems to really like the HKS 272's....
Any thoughts on these versus the S2's? I understand they are a little less agressive but a well rounded cam. Also seems like there are quite a few for sale relativly cheap.
-Ethan
Any thoughts on these versus the S2's? I understand they are a little less agressive but a well rounded cam. Also seems like there are quite a few for sale relativly cheap.
-Ethan
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I didnt want to delete so people could see...but the information below is outdated if you go with the new grind s series cams from GSC. Check their website for current infomraiton on all of their products at ---->http://www.gscmotorsports.com/
Ok so I just read the description on GSC's Website again for the S2's I feel like It has been changed.
The S2 cams are designed for those with a GT35R-GT4067 Turbo. No low end power is lost vs the stock cams when used with the larger turbo. The S2 cams will show gains of 50-70whp over the stock cams and in some cases more in the higher RPMS. Great for 2.0L engines revving to 9000rpms or for Stroker motors revving to 8000rpms. The S2 Cams require upgraded valve springs (check out GSC’s Chro-Molly Retainers and single valve spring kit for a perfect upgrade to your valve train). Designed for a rev range of 4000-9000 RPMS(2.0L or 3000-8000 2.2L+), 500-700whp applications. Not suggested for smaller stock appearing turbo setups. S2 cams can run on Factory ECU with custom flashing.
It now recomends the Chro-Molly retainers and spring kit instead of the beehive ones and also says Not suggested for smaller stock appearing turbo setups much like the FP Green and Red etc etc...
This is making me want to go the S1 route now. Even though i was planning on possibly picking up a red later on down the road....
Ok so I just read the description on GSC's Website again for the S2's I feel like It has been changed.
The S2 cams are designed for those with a GT35R-GT4067 Turbo. No low end power is lost vs the stock cams when used with the larger turbo. The S2 cams will show gains of 50-70whp over the stock cams and in some cases more in the higher RPMS. Great for 2.0L engines revving to 9000rpms or for Stroker motors revving to 8000rpms. The S2 Cams require upgraded valve springs (check out GSC’s Chro-Molly Retainers and single valve spring kit for a perfect upgrade to your valve train). Designed for a rev range of 4000-9000 RPMS(2.0L or 3000-8000 2.2L+), 500-700whp applications. Not suggested for smaller stock appearing turbo setups. S2 cams can run on Factory ECU with custom flashing.
It now recomends the Chro-Molly retainers and spring kit instead of the beehive ones and also says Not suggested for smaller stock appearing turbo setups much like the FP Green and Red etc etc...
This is making me want to go the S1 route now. Even though i was planning on possibly picking up a red later on down the road....
Last edited by ethan169; Oct 28, 2009 at 05:43 AM. Reason: old info
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You will love the S2's. I drove on mine untuned for a day or so before mellon tuned the car. What we saw was, in the lower rpms the S2's gave slightly higher hp and trq #'s but the the real impressive part was, where the curve headed south with the stock cams the S2's continued to rise. The trq was almost flat and hp was about 60 hp higher by 8k rpms.
Just my .02.
Just my .02.
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You will love the S2's. I drove on mine untuned for a day or so before mellon tuned the car. What we saw was, in the lower rpms the S2's gave slightly higher hp and trq #'s but the the real impressive part was, where the curve headed south with the stock cams the S2's continued to rise. The trq was almost flat and hp was about 60 hp higher by 8k rpms.
Just my .02.
Just my .02.
#28
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I had the basic bolt ons. (ets 4" fmic and pipes, intake, full tbe, fuel pump, mbc) If you dont want much lope just have mellon fix that. I personally liked the lope. Mellon will take very good care of you.
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Sounds good thats basically the same as my setup just i dont have aftermarket Front mount. I dont think that will really be a factor until it starts to get heat soaked anyway. I was asking about the lope becasue i also like it... so as long as the car isnt constantly stalling i have no problem with it and enjoy it. I was just curious if they had much lope or not.
Did you run the beehive springs with the S2's? or something else or nothing?
Evo TK - i thought the s2's are 274 274 didnt think there was a 278 unless you get the custom grind s3?
Thanks for the help guys theres a lot of usefull info and experience in here that is really helping me out.
-Ethan
Did you run the beehive springs with the S2's? or something else or nothing?
Evo TK - i thought the s2's are 274 274 didnt think there was a 278 unless you get the custom grind s3?
Thanks for the help guys theres a lot of usefull info and experience in here that is really helping me out.
-Ethan
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ethan, its not the duration that makes the S2's great, its the lift. I ran the dual springs and retainers from BR. I would also get smaller inner diameter valve stem seals. Dual springs can pull the stock valve stem seals off.