Hellion sleeper help

[Cux211]

Haha. I have 64/66 ball bearing precisions and idk man but it's a millisecond spool depending on rpm. There is hardly any lag. I know the supercharger guys are gonna say theirs hits harder and quicker and that may be true, but what are you doing with the car? If your roll racing then you want some kind of rolling anti lag or hold the brakes and go wot. If your trying to squeeze every drop out of it.

It was honestly just a curiosity thing I know very little about these cars trying to learn, all my knowledge is in high hp diesels I’ve built several 1000+ hp trucks with large compound turbo set ups and with diesels the less plumbing the better so that being said just looking at it logically it seemed that the top mount on reversed headers would flow/spool better/more efficiently but I very well may be dead wrong lol

Sponsored

 

[Crackerjack17]

It was honestly just a curiosity thing I know very little about these cars trying to learn, all my knowledge is in high hp diesels I’ve built several 1000+ hp trucks with large compound turbo set ups and with diesels the less plumbing the better so that being said just looking at it logically it seemed that the top mount on reversed headers would flow/spool better/more efficiently but I very well may be dead wrong lol

Gotcha. Yeah it's not like the guys with huge single turbos who pull up to the line and take 5 seconds to spool. I guess it depends on the turbo and size you have. On paper, I would guess the longer tubing and column of air you have to move would show a delay. OEM's put the turbo super close to exhaust so it must be a factor.

 

[Skipson]

What you have to keep in mind is like cj17 said they are smaller dual turbos requiring much less spool time and then the platform they’re being applied to. This is not a low rpm application. These cars are comfortable running at the rpm range turbos perform the best in. Even naturally aspirated they just keep pulling all the way to redline. I have yet to drive a tt Coyote but can only imagine just how effective tt will be on an engine that safely spins to 7500 rpm.

 

[Cux211]

What you have to keep in mind is like cj17 said they are smaller dual turbos requiring much less spool time and then the platform they’re being applied to. This is not a low rpm application. These cars are comfortable running at the rpm range turbos perform the best in. Even naturally aspirated they just keep pulling all the way to redline. I have yet to drive a tt Coyote but can only imagine just how effective tt will be on an engine that safely spins to 7500 rpm.

Gotcha, I love turbos but in my case the sleeper set up under the car would be no bueno the roads are so bad in my area you’d probably rip one or both off lol hell I’m barely able to drive the car to work there’s multiple gates to get in I can only use one and I have to hit it just perfect or I scrap the hp splitter. Still undecided about top mounts as I’ve heard there’s heat issues and just the lack of torque from coyotes in general I want the power to come on as down low as possible I may be pushed into a whipple or vmp still trying to figure it all out

 

[illtal]

You have to also remember @Cux211 exhaust gas path is much more natural with the turbos down there. There are minimal bends and less opportunity for back pressure.

The reason the those big diesels don't matter as much because they run much hotter cylinder temps and pressures than a gas engine.

Lots of guys spin these engines 8krpm from the factory. With this kind of RPM lag is a thing that can be combated pretty easily.

 

[IceMan706]

those upper intercooler brackets where at on the radiator support do you mount them too? mines just look like a allen key could fit in it but it doesn't work

Sponsored