Vortech 4" pulley only 10psi

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Oct 25, 2012 | 09:23 AM

#21

Broman_The_Swede

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From: Sweden

I have a 3.6 "pulley, but I will content myself with 4" because, I'm going to run on the track.
I hope to brake the 400hp limit with e85 with 4 "pulley and rev limit 9200rpm.

Oct 25, 2012 | 09:25 AM

#22

Moddiction

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Joined: Oct 2007

Posts: 28,698

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From: Mooresville, NC

Quote:

Originally Posted by Bigfootexpert

10PSI is very good for a 4" Pulley, I was using a 3.33" and was only making 12PSI @80000 RPM since I had a 8000 REV Limiter. Still making 405HP @ 97F Ambient Temp.

Wanna 3.33", I sell you mine for $60 incl. S&H

10 psi is not good for 4" pulley with AP1 redline for a vortech kit.

Oct 25, 2012 | 09:54 AM

#23

camuman

Joined: Oct 2002

Posts: 8,044

Likes: 6

From: South Florida

Quote:

Originally Posted by Broman_The_Swede

I have a 3.6 "pulley, but I will content myself with 4" because, I'm going to run on the track.
I hope to brake the 400hp limit with e85 with 4 "pulley and rev limit 9200rpm.

4" is 10psi? E85 allows lots of boost and timing to be run. But pump vs e85 at 10 psi ain't much benefit. If going e85 run like 15-18 psi. Car will love it

Oct 25, 2012 | 10:50 AM

#24

Broman_The_Swede

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From: Sweden

Quote:

Originally Posted by camuman

Quote:

Originally Posted by Broman_The_Swede' timestamp='1351185789' post='22108063

I have a 3.6 "pulley, but I will content myself with 4" because, I'm going to run on the track.
I hope to brake the 400hp limit with e85 with 4 "pulley and rev limit 9200rpm.

4" is 10psi? E85 allows lots of boost and timing to be run. But pump vs e85 at 10 psi ain't much benefit. If going e85 run like 15-18 psi. Car will love it

I`m already running e85, and it gave around 15hp against 98 octane over almost the whole powerband up to 6300 rpm when the rolling road stopped counting (200kW).
And with my 4" pulley it showed 13 psi on my gauge.
I won´t run any more boost because of the heat and durability when trackdriving.
But it´s tempting

Oct 26, 2012 | 07:04 AM

#25

Sideways

Joined: Oct 2000

Posts: 9,033

Likes: 21

From: South of the pier, Huntington Beach, CA

Just to clarify a point, the stock Vortech BOV is good to at least 17 psi.

This car should be fun to drive.

Oct 26, 2012 | 08:05 AM

#26

theprophet36

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Joined: Oct 2011

Posts: 924

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From: Central CT

Quote:

Originally Posted by Sideways

Just to clarify a point, the stock Vortech BOV is good to at least 17 psi.

Good to know. I was actually going to search that topic today as I'm looking to go with a 3.5" pulley on my V-3 Vortech Kit

Oct 27, 2012 | 01:44 AM

#27

Broman_The_Swede

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From: Sweden

Quote:

Originally Posted by Sideways

Just to clarify a point, the stock Vortech BOV is good to at least 17 psi.

This car should be fun to drive.

Good to know, then i have two bov´s in reserve

It´s really fun to drive, especially with the 4.44.
I´m going to make a try to do some 100-200km/h pulls today, hope to improve my times against the stock pulley of 10,56sec.