Evolved Member
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Here are the new style with the different cam durations. Its recommended for stock turbo and even smaller turbos (like the gt30 you planned for the future). This might just maximize your setup for the stock turbo AND upgraded turbo when you decide to change it out.
GSC doesn't recommend the Stage 2 cams (274/272) unless you have a much larger turbo. Just because its bigger, doesn't mean its better, expecially with a stock turbo setup.
Heres a bit more on the GSC Stage 1 cams:
GSC S1 Cams for EVO 8
Intake 268 Duration 10.50mm peak lift, 107 degree Centerline
Exhaust 268 Duration 10.50mm Peak Lift, 113 degree Centerline
The GSC Power-Division S1 cams for the Mitsu Evolution 4-8 are designed for those with the stock turbo up to the GT30/50Trim. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains and will promote faster spooling of the upgraded turbos. Gains of 30-55whp (depending on Turbo) have been seen by simply bolting the S1 cams in. Designed for a rev range of 3000-8000rpms, these cams work well on the stock valve springs. 300-450whp camshaft. Idle is slightly rougher than stock.
Originally Posted by JKD
My GSC Stg. 1 cams are the "old skool" 264/264 ones. However, I still like them.Here are the new style with the different cam durations. Its recommended for stock turbo and even smaller turbos (like the gt30 you planned for the future). This might just maximize your setup for the stock turbo AND upgraded turbo when you decide to change it out.
GSC doesn't recommend the Stage 2 cams (274/272) unless you have a much larger turbo. Just because its bigger, doesn't mean its better, expecially with a stock turbo setup.
Heres a bit more on the GSC Stage 1 cams:
GSC S1 Cams for EVO 8
Intake 268 Duration 10.50mm peak lift, 107 degree Centerline
Exhaust 268 Duration 10.50mm Peak Lift, 113 degree Centerline
The GSC Power-Division S1 cams for the Mitsu Evolution 4-8 are designed for those with the stock turbo up to the GT30/50Trim. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains and will promote faster spooling of the upgraded turbos. Gains of 30-55whp (depending on Turbo) have been seen by simply bolting the S1 cams in. Designed for a rev range of 3000-8000rpms, these cams work well on the stock valve springs. 300-450whp camshaft. Idle is slightly rougher than stock.
Just to up clarify the GSC S2 questions.
I am running them with upgraded springs and retainers.
In dll I saw approxiamately 50 whp accross the powerband.
Power comes right in line with the stock cams but where the curve peaks with the stockers it now continues up and holds that additional hp all the way to redline.
Now the idle will be very loppy but I like it.
My wtqr increased about the same amount as well.
Just my experience with my car.
Take it with a grain of salt.
Evolving Member
Thats awesome Brad, i am looking to get S2's for stock turbo for my IX. Kind of hesitent though because i always here how S2's are for big turbos. I am def getting them, then gonna have CBRD tune it for me cuz i know my car would run great with that tune.
Evolving Member
Quote:
I am running them with upgraded springs and retainers.
In dll I saw approxiamately 50 whp accross the powerband.
Power comes right in line with the stock cams but where the curve peaks with the stockers it now continues up and holds that additional hp all the way to redline.
Now the idle will be very loppy but I like it.
My wtqr increased about the same amount as well.
Just my experience with my car.
Take it with a grain of salt.
Originally Posted by Brad@MellonTuning
Just to up clarify the GSC S2 questions.I am running them with upgraded springs and retainers.
In dll I saw approxiamately 50 whp accross the powerband.
Power comes right in line with the stock cams but where the curve peaks with the stockers it now continues up and holds that additional hp all the way to redline.
Now the idle will be very loppy but I like it.
My wtqr increased about the same amount as well.
Just my experience with my car.
Take it with a grain of salt.
I was just stating what I read from the manufacterer (GSC). I don't have the S2 cams so I really cannot comment on them.
Evolved Member
Quote:
Sounds good man. CBRD is a good place to go.Originally Posted by AKgambler47
Thats awesome Brad, i am looking to get S2's for stock turbo for my IX. Kind of hesitent though because i always here how S2's are for big turbos. I am def getting them, then gonna have CBRD tune it for me cuz i know my car would run great with that tune.
Quote:
I wasn't really directing my comments at you but just a statement that these cams do provide some nice gains on the stock turbo.Originally Posted by JKD
I was just stating what I read from the manufacterer (GSC). I don't have the S2 cams so I really cannot comment on them.
Finally I have an idle vid with these cams.
Click here to see Video