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**Grandpa** · 09-20-2013, 09:58 AM

Originally Posted by DirtyD

He took an already good Roush platform and made it better. It's proven to perform, so not sure how it's overrated in your book. He knows what he is doing, which is why he actually helped develop and design the GT500 TVS. Not sure why you don't like VMP. It's overpriced because he doesn't have the ability to make it a mass production like kit like Whipple and Roush can afford to do. But for the support in both install, tuning, and everything you have access to with Justin, I think it's worth it.

I never said I didn't like VMP, but the VMP kit is the latest trendy rage by young Stangers who don't get it. In order to take full advantage of the VMP kit you need a fully built motor, a full fuel system, twin disc clutch and a built transmission. Even then you are at block spiltting power levels. There are no blocks available for these cars yet that can reliably handle the power.

Most people who buy them, are putting them on stock motors and it's WAY overkill. It's over $2500 more than a standard roush kit which is just as capable of making motor blowing power.

If a fully built car is in your future, by all means buy the kit. If not, you're just wasting money on not using the kit in its effiency range.

**DirtyD** · 09-20-2013, 10:08 AM

Originally Posted by SlowGreyGT

I never said I didn't like VMP, but the VMP kit is the latest trendy rage by young Stangers who don't get it. In order to take full advantage of the VMP kit you need a fully built motor, a full fuel system, twin disc clutch and a built transmission. Even then you are at block spiltting power levels. There are no blocks available for these cars yet that can reliably handle the power.

Most people who buy them, are putting them on stock motors and it's WAY overkill. It's over $2500 more than a standard roush kit which is just as capable of making motor blowing power.

If a fully built car is in your future, by all means buy the kit. If not, you're just wasting money on not using the kit in its effiency range.

With almost any TVS blower, Roush or VMP, you will need a built motor to take full advantage. I am completely aware off all that, but I see it as Justin making the blower that much more capable and efficient. Obviously it is overkill if you never plan to go full built and what not.

Is there any type of comparison out there of his kit and a roush kit? I think that would be interesting to see.

**Grandpa** · 09-20-2013, 10:31 AM

Originally Posted by DirtyD

With almost any TVS blower, Roush or VMP, you will need a built motor to take full advantage. I am completely aware off all that, but I see it as Justin making the blower that much more capable and efficient. Obviously it is overkill if you never plan to go full built and what not.

Is there any type of comparison out there of his kit and a roush kit? I think that would be interesting to see.

The advantage the VMP kit has is in it's efficiency level. The only people who will be able to take advantage of it are the people who are doing heavy road course racing where the AIT's are at an elevated level for extended periods of time. Otherwise it's big overkill for your typical street car that may do a few pulls here and there, but then the AIT's come right back down.

The normal Roush kits are just as capable of making big power as the VMP kit is. If heavy road course action is in your future, the VMP kit is for you. If it's mainly a car seeing street duty, save yourself a few bucks and buy a normal Roush kit which is very capable of making 800rw.