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Old 04-06-2014, 12:58 PM
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Comp Cams Valve Springs

So, simple question (if those actaully exist) should I swap out my valve springs for the 910 springs on riff raff with the mods I have listed below? Planning on a 38r down the road to. On a side note, anyone know the approximate wait time on a BTS trans as of now? I'm so close to being able to afford a new trans. But then again there aint anything wrong with mine now so I may try and hold out. Thanks for the help
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Old 04-06-2014, 05:46 PM
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What does upgrading valve springs on a diesel engine get you unless it's to fix valve float caused by an exhaust brake? These engines just don't rev very high.
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Old 04-07-2014, 06:12 AM
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Originally Posted by RAMKILLER97 View Post
So, simple question (if those actaully exist) should I swap out my valve springs for the 910 springs on riff raff with the mods I have listed below? Planning on a 38r down the road to. On a side note, anyone know the approximate wait time on a BTS trans as of now? I'm so close to being able to afford a new trans. But then again there aint anything wrong with mine now so I may try and hold out. Thanks for the help
I've heard guys with stock engines claim to feel and hear a difference with those springs. For how cheap they are I think its worth it for sure
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Old 04-07-2014, 11:00 AM
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We always recommend new comp springs with Inj's...

BTS is booking into July
We also can get you a BTS quicker..PM me if I can help
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Old 04-08-2014, 09:46 AM
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Originally Posted by CT Performance, Inc. View Post
We always recommend new comp springs with Inj's...

BTS is booking into July
We also can get you a BTS quicker..PM me if I can help
Thanks for the info. I'll be sending you a PM prob in a couple of months to order one. Also do you know how difficult the springs are to change? Is there any special tools that would make life easier?
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Old 04-08-2014, 10:00 AM
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You can put each cyl on TDC then using a KD # 3271 and a small telescoping magnet remove the keepers. I also use compressed air at the same time using glow plus adapter.
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Old 06-02-2014, 07:02 PM
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Originally Posted by CT Performance, Inc. View Post
You can put each cyl on TDC then using a KD # 3271 and a small telescoping magnet remove the keepers. I also use compressed air at the same time using glow plus adapter.
Would you recommend changing the valve springs on a 230K mile 7.3 before installing a exhaust brake? Also , are you changing just the exhaust springs or the intake too?
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Old 06-03-2014, 02:58 AM
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your changing all the springs, and you may look into shimming the springs also, increases seat holding pressure even with those springs, I think its .030 if I remember right, thats the shim thickness, summit sells them. I would do that if I was running above 40psi boost all the time, its the turbo drive pressure that you have to worry about. Thats what floats the valves.
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Old 06-03-2014, 04:41 AM
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DO not shim the springs, they would get to close to binding and no need.
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Old 06-03-2014, 04:51 AM
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Everybody but Cary will tell you to shim them because you want ~130 lbs of seat pressure.

Comp 910 Valve Spring Install How-To - PowerStrokeArmy

Damn good write up with pictures, then go to post #6 for the info on installed heights to get you to the proper seat pressure.

Or do what many do an just install the 0.030" shims and call it a day
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