I need guidance on supercharger upgrade direction

Hello guys/gals, I have a 2009 GT500 that I purchased in September of last year. It has a decent amount of bolt on's already on it including but not limited to:
-2.6inch pulley and accessory idler
- long tubes
- high flow cats
- JLT CAI
- Barton shifter
- FRPP lowering springs
- Koni orange shocks and struts (non-adjustable)
- '13/'14 uppgraded front strut mounts
- J&M adjustable panhard bar
- BMR upper adjustable control arm
- RTR upper control arm bracket
- SR adjustable lower control arms with the Heim joints lower and greasable poly upper mount
- Brake duct cutouts with ducting rerouted to the heat-exchanger
- McLeod clutch (which is at their shop as I type this getting the flywheel and clutch rebuilt/serviced)
- lower control arm relocation bracket

I may be missing some others, but you get the idea. I have been searching this forum for days reading old threads and really haven't come across one that asks my specific question so here goes:

I raced my friend a couple of months ago in his 560 HP 2012 Mercedes AMG63 CLS and he beat me from a dead stop, it was cold (22 degrees F) and I had trouble hooking up of course. I beat him from a roll at 40mph, but he said his sport mode didn't downshift his car properly. I believe him and regardless, his car is faster than mine and I don't like it. I have heard that an easy upgrade is to go with a take-off stock supercharger from a '13/'14 GT500, upgrade to their stock injectors and add the FRPP 65mm throttle body and with good tuning I could be in the 650-ish at the rear wheels mark. Is this true? If so is it a good upgrade to do if I can source the take-off for a good price or am I going to wish I stepped up to something else?


Keep in mind that I don't baby this car, when it is together, I pretty much daily drive it, it doesn't sit in a garage, it gets used and driveability is a priority. It's not a weekend car only. It has high mileage and the guy that had it before me most certainly had a larger SC on it as the stocker looks newer than the rest of the engine bay. He definitely raced it as was evidenced by the bent front strut from getting scared when the front lifted of the ground and dropping it, and the elongated rear studs on and clearanced sway bar mount for 15inch slick I am guessing.

Anyway, thank you for reading and any input.

VMP Gen2 R.

x 2...

Really any TVS will be better, do it once, Gen 2R.

A 13/14 take off tvs with there injectors and a vmp/kp dual boost a pump is the way to go with a smaller pulley. And yes adding a cj 65mm tb or vmp 67mm throttle body will get you to about 650hp on pump gas 91/93

me32 said:

A 13/14 take off tvs with there injectors and a vmp/kp dual boost a pump is the way to go with a smaller pulley. And yes adding a cj 65mm tb or vmp 67mm throttle body will get you to about 650hp on pump gas 91/93

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Thank you for your reply and explanation. I have a guy that says he has a take-off in good condition, though I haven't laid eyes on it, for $1,000. Same guy has brand new in the package 56lb/hr Motorcraft injectors he got for Christmas from his wife (I have seen those). He said he would sell them for $250. So for $2k plus the BAP and tuning, I'm in. I get that you always want more, but I am turning 50 this year and I don't have to be the guy that is pushing the edge on everything. I know that the safe limit on the stock block is somewhere around 750HP at the wheels, and with the mileage I have if I start pushing that raged edge, my block isn't long for this world. I live near Revolution Auto and they have some SERIOUS Mustangs running around. I have some decent play money, but I am not keeping up with the Joneses, if you know what I mean. So I was thinking this would be a good first step and if/once I get the itch for more, there is the VMP Gen2 or Gen2R right there at the next price point. That was my thinking anyway.

HKusp said:

Thank you for your reply and explanation. I have a guy that says he has a take-off in good condition, though I haven't laid eyes on it, for $1,000. Same guy has brand new in the package 56lb/hr Motorcraft injectors he got for Christmas from his wife (I have seen those). He said he would sell them for $250. So for $2k plus the BAP and tuning, I'm in. I get that you always want more, but I am turning 50 this year and I don't have to be the guy that is pushing the edge on everything. I know that the safe limit on the stock block is somewhere around 750HP at the wheels, and with the mileage I have if I start pushing that raged edge, my block isn't long for this world. I live near Revolution Auto and they have some SERIOUS Mustangs running around. I have some decent play money, but I am not keeping up with the Joneses, if you know what I mean. So I was thinking this would be a good first step and if/once I get the itch for more, there is the VMP Gen2 or Gen2R right there at the next price point. That was my thinking anyway.

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At 2k for 650hp is a great bang for the buck. And well worth it.

me32 said:

At 2k for 650hp is a great bang for the buck. And well worth it.

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Agreed, thats actually cheap to get to 650 WHP.

you can also find the XBA inlet from Power By The Hour to fit the Kenne Bell 168mm Oval TB and be set for a long time. Youll want to include a bigger intake. PMAS makes a very nice 120mm unit.

I'd be willing to bet that if you get yourself a nice set of drag radials you will smoke him. That AMG is nice and heavy; it likely has a few hundred lbs on you. Not to say it isn't fast, but he's got the same limitations you do...namely traction. Those cars run low 12s and trap in the low 120s...so traction is lacking. Lots of power and not enough rubber...same problem you have. I'd focus on laying the power down first...it'll only cost you 400 bucks or so. If you upgrade your blower later, you will already have the supporting rubber.

The first time I warmed up a set of Nitto DRs on a humble 350 whp 86 GT, I almost shit myself when I took off and they dead hooked. And those were old, shitty, used DRs.

Handlebar Moustache said:

I'd be willing to bet that if you get yourself a nice set of drag radials you will smoke him. That AMG is nice and heavy; it likely has a few hundred lbs on you. Not to say it isn't fast, but he's got the same limitations you do...namely traction. Those cars run low 12s and trap in the low 120s...so traction is lacking. Lots of power and not enough rubber...same problem you have. I'd focus on laying the power down first...it'll only cost you 400 bucks or so.

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Best response. I like it

OP, I would do the tires first. Rerun him and see where things stand.

Blowers; It's a buyer market for Gen2R's. Got my Gen2 R for $1800.00
2.5 pulley for pump gas, 2.4 pulley for race fuel

Page 1 of this post outlines my set up but it looks like you have most of the needed supporting mods

https://www.svtperformance.com/threads/bone-stock-to-fully-modded-11.1166686/

Thank you guys for all the reply's, I appreciate the information. 1Kona, that is a beautiful car and you are right, we have a pretty similar list of supporting mods. Thank you for the link to your thread.