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The Terminator
Terminator Talk
VMP 2.65 or Whipple 2.3 or 2.9
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<blockquote data-quote="Justin@VMP" data-source="post: 16179431" data-attributes="member: 18468"><p>I think we could all give better advice if we knew the HP goal and the fuel you would be running. </p><p></p><p>I have worked with all of the blowers, the 2.65 and 2.9 3/4 are very similar in power output. The real limiting factor is octane and how well the engine flows. If you want to be a player at 800+rwhp you need to start investing in the motor with cams atleast. Don't expect GT500 or coyote numbers from a 4.6L. Back then the 4v didn't get GT heads like the 5.4 GT500 engine which got them when it came out in 07. </p><p></p><p>We designed our VMP gen3 2.65l to meet the needs of the customer with a stock fuel system to the person that wants to turn it up and go for 900+rwhp. Most everyone is going with the big oval GT500 bolt pattern elbow and throttle body at this point. We've got a 5in CAI to feed it, or you can use a JLT with a reducer coupling. The stock TB location lets you change plugs easily and use any TB or CAI combo. </p><p></p><p>If you are on pump gas, think 3.2 or 3.3 upper pulley with stock lower. On E85 or race gas, you can turn it up, 4lb and 3.2 or 3.1 is a good combo. If stock lower you can go down to 2.8-2.7 upper. </p><p></p><p>As far as power goes, figure mid 600s on pump gas, mid 700s on mild e85 combo, and then 800-900rwhp on built combos (heads/cams/compression) depending on specifics. If you build these things and run E85 you pretty much want 10:1 CR. The L&M or kurgan NSR cams work really well, boost drops, and any blower will get much more efficient at lower boost levels. </p><p></p><p>We are going to offer a CNC case porting option that will add 30rwhp at higher boost levels. </p><p></p><p>We will always use the eaton 2.65l rotors in our highest performing products. The rotor design is incredible, eaton got it right.</p></blockquote><p></p>
[QUOTE="Justin@VMP, post: 16179431, member: 18468"] I think we could all give better advice if we knew the HP goal and the fuel you would be running. I have worked with all of the blowers, the 2.65 and 2.9 3/4 are very similar in power output. The real limiting factor is octane and how well the engine flows. If you want to be a player at 800+rwhp you need to start investing in the motor with cams atleast. Don't expect GT500 or coyote numbers from a 4.6L. Back then the 4v didn't get GT heads like the 5.4 GT500 engine which got them when it came out in 07. We designed our VMP gen3 2.65l to meet the needs of the customer with a stock fuel system to the person that wants to turn it up and go for 900+rwhp. Most everyone is going with the big oval GT500 bolt pattern elbow and throttle body at this point. We've got a 5in CAI to feed it, or you can use a JLT with a reducer coupling. The stock TB location lets you change plugs easily and use any TB or CAI combo. If you are on pump gas, think 3.2 or 3.3 upper pulley with stock lower. On E85 or race gas, you can turn it up, 4lb and 3.2 or 3.1 is a good combo. If stock lower you can go down to 2.8-2.7 upper. As far as power goes, figure mid 600s on pump gas, mid 700s on mild e85 combo, and then 800-900rwhp on built combos (heads/cams/compression) depending on specifics. If you build these things and run E85 you pretty much want 10:1 CR. The L&M or kurgan NSR cams work really well, boost drops, and any blower will get much more efficient at lower boost levels. We are going to offer a CNC case porting option that will add 30rwhp at higher boost levels. We will always use the eaton 2.65l rotors in our highest performing products. The rotor design is incredible, eaton got it right. [/QUOTE]
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VMP 2.65 or Whipple 2.3 or 2.9
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