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11v,2 09 v's,2 05 v's,5 GTM supercars,viper,volt,2012 karma
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Discussion Starter #1
Hi guys, Im getting some special spacer brackets made that will allow you guys to run a 10inch and even a 10.25 ring for the lower which SHOULD get you past the 600hp mark with just the lower pulley and no upper pulley changed needed.

Im just curious as to how many i should have built. They are 100% needed for those of you guys wanting to run the 10inch and larger rings, And would be a beneficial upgrade for those running a 9.5 as it moves the little idler a little more out of the way of the crank for better alignment.

They should be pretty reasonably priced, but of coarse, the more i order at once, the cheaper the cost for machining.

But if people arent wanting to add much more boost, then ill probably wait.

9.55 ring has been hitting in the 550-560 range, The 10 adds 30-40 more.
 

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2009 CTS-V Radiant Silver/Ebony Auto
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144 Posts
Jesse would their be fuel issues past the 600 mark or only past a certain boost point?
 

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Discussion Starter #3
All of the mods i am posting, are only putting people to the 600hp mark. Anything PAST that point would need fuel fixes. For guys with just trying to get to that point should be fine. Even a little higher, but 600 is just the level im sticking at as i know it works with no issues.
 

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cts v 2009
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160 Posts
how would be the drivabilty? and what is the difference between 10 and 10.25?? safety and longevity of the engine? how much psi with 10.25? and 10?
 

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2009 CTS-V
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557 Posts
So 10" ring, CAI, headers, exhaust get 600HP....or 600RWHP?
 

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2009 CTS-V
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332 Posts
I'm thinking about getting the airbox mod, crank pulley, and tune from you very soon. But what are the positives and negatives of a 10.25 vs 10 vs 9.5? Longevity, drivability, noise, performance, heat soak, etc?

Basically, why would somebody chose a 9.5 over a 10 or a 10.25 (unless you just don't want as much hp or if the price is higher, of course)
 

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2011 GTR
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1,026 Posts
Higher boost will always equal more wear and tear.... more wear and tear is of course going to lower longevity. As soon as you start modding your car, you have to be willing to "pay the piper." Just the way it's always been.

I would love a 10" lower myself Jesse. But could you explain if a 2.55 with a 9 or 9.5 is better/worse than just a 10" lower and why?

Thanks,
Mark
 

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cts v 2009
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160 Posts
Higher boost will always equal more wear and tear.... more wear and tear is of course going to lower longevity. As soon as you start modding your car, you have to be willing to "pay the piper." Just the way it's always been.

I would love a 10" lower myself Jesse. But could you explain if a 2.55 with a 9 or 9.5 is better/worse than just a 10" lower and why?

Thanks,
Mark
good question, please answer jesse. thanks
 
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