3800 so I was talking to some of my cobra buddies

[xierxior]

if they slap on a smaller pulley then a 2.8 it aparently overspins the supercharger and the gains you get take a noise dive because the amount of the heat the supercharger generates is insane..

so I was wondering at what point are we overspining the m90? 3.0 pulley?

mind you a 2.8 with a dyno tune intake and full exhaust on a cobra puts down 500+ whp

Click to read more...

 

[Mike K]

Good gains can be had each pulley sized dropped down to a 2.8. After that it's harder to notice a pulley drop as the the increase in boost is greeted with a significant increase in heat. Below a 2.6" pulley pretty much all gains in boost are negated by heat.

 

[Aircal]

Originally posted by Mike K@Feb 21 2006, 10:14 PM
Good gains can be had each pulley sized dropped down to a 2.8.  After that it's harder to notice a pulley drop as the the increase in boost is greeted with a significant increase in heat.  Below a 2.6" pulley pretty much all gains in boost are negated by heat.

[snapback]115563[/snapback]​

So reduce the heat then.

 

[xierxior]

Originally posted by Aircal+Feb 21 2006, 09:22 PM-->

<!--QuoteBegin-Mike K

@Feb 21 2006, 10:14 PM
Good gains can be had each pulley sized dropped down to a 2.8.  After that it's harder to notice a pulley drop as the the increase in boost is greeted with a significant increase in heat.  Below a 2.6" pulley pretty much all gains in boost are negated by heat.

[snapback]115563[/snapback]​

So reduce the heat then.

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[/b]

haha no he answered my question it's the same as the cobra after 2.8 you start overspining the supercharger.. you're making more heat then power that just means you've maxed out that particular power adder either go turbo or get a whipple

 

[Mike K]

Originally posted by Aircal+Feb 21 2006, 09:22 PM-->

<!--QuoteBegin-Mike K

@Feb 21 2006, 10:14 PM
Good gains can be had each pulley sized dropped down to a 2.8.  After that it's harder to notice a pulley drop as the the increase in boost is greeted with a significant increase in heat.  Below a 2.6" pulley pretty much all gains in boost are negated by heat.

[snapback]115563[/snapback]​

So reduce the heat then.

[snapback]115565[/snapback]​

[/b]

You're so far out the efficency island that you really can't even with an intercooler. You may be able to set it up with no knock but the air is still going to be warmer, intercooler or not.

 

[Aircal]

Or a bigger supercharger.....MadMax style!!!!!!