Is there anybody that has this kit and what kind of power is it putting down? on american muscle it says 400-700hp but if you install it the way they send it to you and with the tune they give you about what would the rwhp be? also are there any problems that people have been having with this kit?

 

This Hellion kit is pretty nasty! Your power level will really depend on how far into your build you're looking to go. However, with just bolting the kit on and getting a good tune, you'll probably easily make mid 400's. I would recommend throwing in a set of injectors, step cold plugs and a fuel pump ( you could probably get away with just a boos-a-pump). The sky's the limit with this kit, it's capable of up to 950 RWHP.

I'm interested to see some other forum members feedback..

-Dan

 

I honestly would be leery of pushing past 500bhp since anything above that has failed.

 

That's awesome the kit can make up to 950 rwhp but the real question is how much rwhp can the factory engine handle. Even if one, forged the engine with a forged crankshaft, forged, rods and forged pistons, can it still safely withstand 950 rwhp. From asking this very same question on numerous forums , the consensus is NO WAY. The general consensus is , even with forged internals no one is exactly sure how high rwhp the engine can safely hold. From speaking with other forum members on here and other sites beast 3.7 ( ha ha ha) its an good rule of thumb not to push more than 450 rwhp to play it safe.

Who here wants to spend the 10 grand or so to see how far they can push the envelope before there engine blows up from to much rwhp? You figure the supercharger kit will cost around 5200k. The forged internals will run you another 1,950k. The install on the forged internals could be 2k. Its a huge job. Not to mention the cost of a intercooler, cold plugs, fuel pump. Bam, you up to 10k.

Our 3.7 engines are so new, they just don't have enough data to fully know the longevity of the engine under heavy loads of rwhp. Sure 8 pounds boost, no problem but when you start talking 12 and up, watch out. Its not like the entire 3.7 engine was fully forged and designed to handle large amounts of boost and power like the 03/04 Cobras.

 

I saw one on 7lbs. of boost that made like 400whp; with injectors, 10lbs of boost, and a more aggressive tune I think it did 440whp. To go any higher than that, you would have to go into the engine I believe.

 

Yeah but they were talking about one guy with a supercharged engine. Turbo would be different, I agree that you would have to change some parts out, but this engine is actually made for turbo, Ford turbos this engine on other cars if I recall correctly.

 

Really. Wow. I did not know that. Is the turbo a bolt on kit?

 

I believe he is referring to the Ecoboost engines....those are 3.5L displacement.

 

Right. That's what I was thinking. The 3.5 is a different engine than the Mustang's sixer.

 

Lol. My bad. I'm all confused today and yesterday. Lol.

 

http://www.supersixmotorsports.com/_...ne-tech-v2.pdf

Explains the difference btw the 3.5, 3.7, and EcoBoost engines. Basically the 3.7 is an EcoBoost with a larger bore and NA-style flat-top pistons, better flowing heads and manifolds, and a bunch of little changes.

It seems that the main weakness in high-boost applications is going to be the pistons. The EcoBoost engines use a dome-top piston that is much more forgiving on boost than our stock pistons are. So if you wanted to run high boost in one of these, probably need to change out at least the pistons if not full internals.

Good news is that you can get turbo-specific pistons for around $1k, or a full 4.0L stroker kit for around $4k, if you want to go crazy.

 

So the v6 3.7 engine is the eco boost engine for the mustang?

 

The 3.7 is kinda like the three month older brother. Pretty much the same just a few different things.

On a side note, has anyone done the 4.0L stroker kit yet? Itd be interesting to see how it performed and sounded

 

I'd be willing to try it out with some funding assistance.

 

well 400rwhp with a turbo and 400rwhp with a supercharger are two different things. supercharger puts way more strain on the engine since its taking power from the crank to turn the supercharger and the turbo is just using the exhaust to turn it. im willing to see how far the engines can go if i could get some help. i have another 3.7 i could get pretty cheap if mine goes out. im very interested in how much these engines can hold when going turboed or supercharged, but i would much rather do turbo.

 

If someone decides to go turbo, hopefully they know this before they start with several bolt on mods. If one puts on long tube headers and off road x pipe , that would not help the turbo. That would do the complete opposite of how the turbo really makes its power. Traditionally I think of import sports cars with turbos and superchargers for American muscle cars like mustangs. Lol. Turbos are wicked once that boost builds up.

 

well you cant really put long tubes on with their kit cause its not a rear mount turbo. but yeah exhaust mods after the turbo help but before doesnt really do much. honestly when i think of american muscle i dont think of a v6, i always think of a v8 lol. but im gonna try to do this turbo build and im thinking 500rwhp would be safe since people are putting down 450 with a supercharger.

 

I know its hard for people getting used to the idea the 11 plus stangs as being American Muscle. Things are slowly turning around for the past several years. With a turbo on your car and if your making 500 rwhp that's a beast. That's about 60 rwhp less the 14 Gt500. Dude, that's crazy awesome.

I personally really want a supercharger and would be very happy with 425 to 435 rwhp on 8 pounds boost. This of course would be including onto my already 297 rwhp. I have long tube headers and off road x pipe so a turbo would not work best for my current setup.

 

430whp... 30+mpg.... Turbo-back exhaust sound... mustang body? Go for it!
although when I think turbo Mustang... one has to think...

Tokyo Drift!
Nissan 240sx engine though lol

 

except for all the driving scenes they used a 351W based engine