VMP Gen2R or Pulley on Stock Blower?

Sirraf

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I want to get more power out of my bone stock Shelby. On my old GT500, I had a 2.5'' pulley with a CAI and tune. It put down about 540 whp. However, after about 10 minutes of driving, it lost a ton of power (stock heat exchanger).

On my current GT500, I have considered putting on a different and more efficient blower. I am only wanting to make about 600-625 whp. I would love to stay on the stock clutch if possible. Would a Gen2R be my best bet to achieve my goals or would smaller pulley and H/E do the job? Do you have to do any special trimming/fitting for the 2R?
 

Klaus

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I want to get more power out of my bone stock Shelby. On my old GT500, I had a 2.5'' pulley with a CAI and tune. It put down about 540 whp. However, after about 10 minutes of driving, it lost a ton of power (stock heat exchanger).

On my current GT500, I have considered putting on a different and more efficient blower. I am only wanting to make about 600-625 whp. I would love to stay on the stock clutch if possible. Would a Gen2R be my best bet to achieve my goals or would smaller pulley and H/E do the job? Do you have to do any special trimming/fitting for the 2R?

Ibassume 5.4? Pulleyed stock will get you to 550whp on pump gas, gen 2r will get you >650. Third option is to get a takeoff from 13/14 and get it ported. It will put you at your desired power level or higher at much lower cost than VMP.
 

VNMOUS1

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I want to get more power out of my bone stock Shelby. On my old GT500, I had a 2.5'' pulley with a CAI and tune. It put down about 540 whp. However, after about 10 minutes of driving, it lost a ton of power (stock heat exchanger).

On my current GT500, I have considered putting on a different and more efficient blower. I am only wanting to make about 600-625 whp. I would love to stay on the stock clutch if possible. Would a Gen2R be my best bet to achieve my goals or would smaller pulley and H/E do the job? Do you have to do any special trimming/fitting for the 2R?
VMP or Trinity TVS are bolt ons. Either require bigger injectors, a fuel pump booster and a custom tune. Let me know if I can assist you with the tune.

Sent from my SM-N950U using the svtperformance.com mobile app
 

biminiLX

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Ibassume 5.4? Pulleyed stock will get you to 550whp on pump gas, gen 2r will get you >650. Third option is to get a takeoff from 13/14 and get it ported. It will put you at your desired power level or higher at much lower cost than VMP.
Agreed with the exception that you don’t have to port the ‘13-14 Trinity blower. For a goal of 600-625rwhp, either blower would work great. Put the porting money to a better heat exchanger.
-J
 

Nutty 5.0

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I want to get more power out of my bone stock Shelby. On my old GT500, I had a 2.5'' pulley with a CAI and tune. It put down about 540 whp. However, after about 10 minutes of driving, it lost a ton of power (stock heat exchanger).

On my current GT500, I have considered putting on a different and more efficient blower. I am only wanting to make about 600-625 whp. I would love to stay on the stock clutch if possible. Would a Gen2R be my best bet to achieve my goals or would smaller pulley and H/E do the job? Do you have to do any special trimming/fitting for the 2R?

I've gone through exactly what you described as I like the 530-540hp with a pulley/intake/tune. But like you the heat soak got pretty bad so got a triple pass HX with 170F thermostat. It helped, but the pullied HEaton's really get ragged out so quickly in the summer. I enjoyed it for a year while I put together the parts for Gen2R and supporting fuel. If you want to budget a build, go pullied and HX for a while. Then get the Gen2R/supporting parts. But like most will tell you, just jump right the to good stuff.

Literally just got my Gen2R combo on a few weekends ago. Literally bolts right on. EGR tube is a witch's whore, but no worse than most car stuff. I will be honest, I don't notice a huge gain (I didn't dyno after but will be soon but datalogged back and forth with tuner) with the 2R. But I'm saying that with stock size Nitto 555 Gen2R tires that just want to spin so hard to judge on the street. I'm sure it is quicker and this is a standard 600-650hp set up depending on exhaust and fuel you use. I run 2.4 pulley on 93 tune. Full stock exhaust with JLT 123, 56's, VMP pump booster.
 
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shelbygt500hoss

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I made 630 RWHP on a Mustang dyno with my mods. Don’t hesitate get the Gen2r, I’m in love with it. Honestly don’t waste your money on the stock blower
 

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