Guess what she will make this time on the dyno
03-04-2009, 09:02 PM
#32
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03-04-2009, 09:10 PM
#33
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Your boost drops because your not making enough to support that high rpm. I shift at 6300rpms which is where I hit max boost. I'm going to get a 2.75 pulley soon to make more boost since 19lbs is all I can make right now.
03-04-2009, 09:14 PM
#34
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so you're saying MORE boost is the solution? or more power? hah, well, isn't that rich.
Where I'm at right now, at 7000RPM, the blower is only being spun 51000RPM, so I still have two pulley sizes to go before it's even at it's redline, which would put me at like 18PSI of boost.
That just seems like TOO much power for me, if you know what I mean
Where I'm at right now, at 7000RPM, the blower is only being spun 51000RPM, so I still have two pulley sizes to go before it's even at it's redline, which would put me at like 18PSI of boost.
That just seems like TOO much power for me, if you know what I mean
03-05-2009, 07:52 AM
#35
6th Gear Member
Join Date: Feb 2006
Location: Virginia
Posts: 11,786
Not with stock heads, intake and NA cams I doubt. Are you running an 8rib? Boost is just a measure of restriction. I have a pretty free flow motor with the ported heads and the blower cams. Plus I have LT's and a full 3" exhaust dumped. Plus with 20 psi I would use race gas or torco.
03-05-2009, 04:48 PM
#36
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Join Date: Mar 2006
Location: West Virginia
Posts: 563
People have been over spinning the S and T-trims forever. Vortech has always underated their head units.
Last edited by jivepepper; 03-05-2009 at 04:58 PM.
03-06-2009, 10:46 PM
#37
6th Gear Member
Join Date: Feb 2006
Location: Virginia
Posts: 11,786
3" 8rib Vortech renegade pulley. But I also run an 18% innovators west overdrive crank pulley. Plus I only spin it to 6400rpm. It comes on like a twin screw almost. At 6400 I'm close to 55000k on the blower that's where the s-trim runs out of breath.. That's how fast I plan on spinning the T-trim. I also have a ultra restrictive IC. I paid 100 shipped of ebay.
People have been over spinning the S and T-trims forever. Vortech has always underated their head units.
People have been over spinning the S and T-trims forever. Vortech has always underated their head units.
03-07-2009, 12:35 AM
#38
3rd Gear Member
Join Date: Mar 2006
Location: West Virginia
Posts: 563
I built mine years ago before most would even considered it, Everyone told me I would be sorry and it would absorb to much boost. I think it performs well, but is no way threadstone etc. After mine it was like every tom dick and harry was doing it, Making write ups etc.
I do think it absorbs some for the fact that it took smaller pulleys to make amount of boost comparded to others with less restrictive ic's, But I have always seemed to make more than usual numbers too and have lower IAT's
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