Vortech V3si 12#s. Too hot for 93?

[JANNETTYRACING]

Originally Posted by eLeSthree

Ok, the general consensus seems to be conclusive. Pulley down, or ante up for E85.

Fortunately for me, the 12# was designed for a stock ls3. With my cam and exhaust, it'll probably net me 9psi.

I think I can work with that for a while.

ZL1 pump, bap, zl1 injectors for now.

It is ends up an 9 psi you will be fine on the fuel pump but out of injector.

Ted.

[eLeSthree]

Originally Posted by JANNETTYRACING

It is ends up an 9 psi you will be fine on the fuel pump but out of injector.

Ted.

My tuner likes the DW90#s, and says I should be able to use them on E85 at the same boost level, once I upgrade the pump(s).

Originally Posted by JANNETTYRACING

You would not necessarily need Meth for cooling as much as you would need it for Octane.

The E-85 is a better safer more consistant choice but you need a pretty large fuel supply and injectors to support it.

I can help you with this I stock everything you need.

Ted.

Thanks Ted, I know you do. I frequent your website.

Originally Posted by Slickcas

For the V3 to make 12# boost you must be spinning it hard. Unless your on stock cam and no headers. Both of will drop your boost.
My self I made a restrictor plate. To keep the boost at 10ish. The car has way more power in the low and midrange then the boost lvls out at 5k+.

I used a 1/4” aluminum plate. Turned the OD down where it fit in front of the supercharger inlet. Then opened up the center until I was at 10#s.
Being that it’s one solid part no welds it will not come apart and impossible to fit inside the supercharger.
If you like I can take a picture of it and measurements after work.

Pretty cool. I'd like to see that if you can post a pic. Whats the advantage over changing the crank pulley to increase boost?

[JANNETTYRACING]

On the vortech kit the larger lower pulley really helps with belt traction and gives you more range with the top pulleys.