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-   -   COG drive setup for SC (http://www.the370z.com/forced-induction/109826-cog-drive-setup-sc.html)

TopgunZ 12-18-2015 01:17 PM

COG drive setup for SC
 
Most of you know I am running a stillen kit which I have fabbed over to an air to air setup. I made 490whp with the kit on 9.5psi. However, I have a built motor and would really like to put it to good use. Now I can obviously go turbo, which I have already done in the past with this car, but I'd like to keep pushing this kit.

The problem is that I believe I am already overspinning the SC by just a tad over recommended rpms. This is not a track only car so I am not sitting in the high rpms on it for most of its use so that's not really a concern the way it sits.

I am looking for other options to get more psi out of it though. One route would be to swap the V3 out for a different unit.

However, I know guys have gone the cog route with some success. I am a bit confused by this however. How does this create more boost? If the impellar is spinning at 60K and maxed out with a groove belt and makes 10psi then how does a cog setup make it produce more boost?

Chuck33079 12-18-2015 01:38 PM

I thought all it did was reduce belt slip. I guess that would increase boost if it was slipping on the grooved setup

TBatt 12-18-2015 03:44 PM

Quote:

Originally Posted by Chuck33079 (Post 3371160)
I thought all it did was reduce belt slip. I guess that would increase boost if it was slipping on the grooved setup

:iagree: A toothed drive belt will not slip.

JWillis72 12-18-2015 06:16 PM

You can do both reduce slip and spin it faster but you would need to rebuild the SC to handle the speed. I have a set sitting here but later realized it would be to much boost, I believe the info is in the air to air thread somewhere. I think it was Evohunter that told me where to get them.

swiss370Z 12-19-2015 12:42 AM

Very interesting THREAD! :tiphat:

We are the idea in spring also transpose
Would be great if someone can provide Information

Which setup for which area (9, 10 or over 10 PSI :tup:):

- Where to buy (Vortech etc.)
- Which part number (type, etc.)

Cog Style Supercharger Pulleys - Corvette/350Z/Infiniti G35 | Vortech Superchargers

And where can you buy the best parts for the upgrade of the superchargers?
(Bearing etc. from 928 Motorsports, Vortech etc.)

THANKS for the information!

TopgunZ 12-19-2015 10:12 AM

Quote:

Originally Posted by JWillis72 (Post 3371374)
You can do both reduce slip and spin it faster but you would need to rebuild the SC to handle the speed. I have a set sitting here but later realized it would be to much boost, I believe the info is in the air to air thread somewhere. I think it was Evohunter that told me where to get them.

You looking to sell those by chance?

JWillis72 12-19-2015 01:55 PM

I will be as long as my motor holds this week.


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JWillis72 12-19-2015 01:58 PM

If you can wait to see what my motor does and everything is okay, I will sell them to you cheap.


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JWillis72 12-19-2015 03:08 PM

http://images.tapatalk-cdn.com/15/12...428cd23769.jpg


It's a 30 tooth on the sc and a 34 if you want to see how that works with your plans.


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TopgunZ 12-19-2015 04:34 PM

Awesome. Hope you get to use them but if not I'll claim them now.

StillenZ84 12-19-2015 07:34 PM

Quote:

Originally Posted by JWillis72 (Post 3371917)
http://images.tapatalk-cdn.com/15/12...428cd23769.jpg


It's a 30 tooth on the sc and a 34 if you want to see how that works with your plans.


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With that setup are there any spacers that are involved or are they a direct replacement? Obviously there would be no slip but how much actual boost is created with them?

JWillis72 12-19-2015 07:41 PM

That would depend on what other pulley you use with it and what impeller is used.

JWillis72 12-19-2015 07:43 PM

Vortech has a calculator on their website to try different set ups.


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clkio 12-19-2015 08:07 PM

Cog setup was a bit*h. Constant belt ripping and slipping, took almost eight month to get a bracket to stop that. I wouldn't run it.

JWillis72 12-19-2015 08:39 PM

Interesting, do you still run it?


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