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IX GSC S2 Cams, Stock Turbo

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Old Jan 24, 2012 | 07:45 AM
  #16  
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From: manchester, new hampshire
Originally Posted by JohnBradley
This car has a cat in it so the tailpipe AFR is not accurate. The 12.5 indicated is actually closer to an 11.8 at the testpipe. The drop from 3200 and down is I start the pull at 2400rpm and AMS chose 1700 so since they dont start at the same point it appears to be down power. In reality it isnt but since I didnt know AMS started that low I didnt get them overlayed the same.

aaron
ok thanks was just thinking that was lean for straight 92 pump gas (assuming this is the octane based on northwest location)
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Old Jan 24, 2012 | 07:56 AM
  #17  
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^ Yes it is 92. Like Aaron stated tailpipe is differnt than at the testpipe on cars like this. I run into the same problem with street tuning a car. I have to know the correct afr as even the tailpipe on a testpipe car is still a bit leaner than it actually is.

I love the S2s. Prob the best cam on the market and def the best cam for a stock turbo setup looking for the best power and still retain stock like spool. Nice tune Aaron! OP I'm sure you are very happy with your car now.

Mikey
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Old Jan 24, 2012 | 09:14 AM
  #18  
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Originally Posted by JohnBradley
This car has a cat in it so the tailpipe AFR is not accurate. The 12.5 indicated is actually closer to an 11.8 at the testpipe. The drop from 3200 and down is I start the pull at 2400rpm and AMS chose 1700 so since they dont start at the same point it appears to be down power. In reality it isnt but since I didnt know AMS started that low I didnt get them overlayed the same.

aaron

Thanks for clarifying Aaron. Yeah, we can't really compare the lower end with 100% certainty. Besides, I'm never trying to accelerate below 3k anyways.

I updated the original post with the fuel used. 93 octane at AMS and 92 octane at English.

And yes, i am extremely happy with the tune! It's been way too long since I did any major work to it.
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Old Jan 24, 2012 | 02:34 PM
  #19  
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Originally Posted by zeus1
ok thanks was just thinking that was lean for straight 92 pump gas (assuming this is the octane based on northwest location)
Yeah, 92 octane and 12.5 will make great power for a little while, really havent pushed a gas car that lean. But in the end I dont feel its worth the extra 6whp all tolled.

Aaron
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Old Feb 9, 2012 | 06:52 PM
  #20  
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What type of gains would one see with the S2 cams on stock turbo running E-85 gas?
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Old Feb 10, 2012 | 05:51 PM
  #21  
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Originally Posted by TurboIX
What type of gains would one see with the S2 cams on stock turbo running E-85 gas?
Similar but it really depends on the model (8 or 9) and what other mods are done.

Aaron
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Old Feb 11, 2012 | 07:38 AM
  #22  
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Originally Posted by JohnBradley
Similar but it really depends on the model (8 or 9) and what other mods are done.

Aaron
E-85
LICP
WGA 16psi spring
TBE 3" no cat
Intake
26psi

I made 354whp on a mustang dyno

I was wondering how much more power I can get get with the S2 cams with this setup. I can go with 28-30psi but not sure if that is safe.
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Old Feb 11, 2012 | 08:35 AM
  #23  
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From: ohio
i also have s2 with beehive spring retainer and seats gotta say love them and best bang for the buck...
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Old Feb 16, 2012 | 09:23 PM
  #24  
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From: South Carolina
Nice increase in power. I've had my S2's for a while but haven't been able to get them installed and tuned cause stuff came up lol

Are you still on the stock front mount?
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Old Feb 16, 2012 | 09:28 PM
  #25  
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Nevermind just looked at your OP lol AMS front mount
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Old Feb 22, 2012 | 07:25 AM
  #26  
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I'm still debating if I should go with the S1's or S2's...my only concern would be daily driving with S2's... any feedback you can give on this goucho or anyone else with S2's. My plans are for a FP Green maybe FP Red later down the road.

Last edited by runningonE; Feb 22, 2012 at 12:46 PM.
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Old Feb 24, 2012 | 02:51 PM
  #27  
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stock fuel pump / injectors / intercooler? if so, excellent numbers imo
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Old Feb 24, 2012 | 03:56 PM
  #28  
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I did indact buy s2 cams due to this thread haha.
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Old Feb 24, 2012 | 03:59 PM
  #29  
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Originally Posted by roof_rack
stock fuel pump / injectors / intercooler? if so, excellent numbers imo
Walbro 255, stock injectors, but I dont remember off the top of my head if it had a stock intercooler. I dont believe so but I could be incorrect on that.

Aaron
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Old Feb 24, 2012 | 05:08 PM
  #30  
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Whoa, Really nice gains here!! A good power band as well!
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