Forced Induction for the daily driver.

[sqidd]

So, since heat is ultimately the killer of an engine. Would it be safe to say a centri supercharger would be the "best" fi to use if you wanted to have fi and hit up a road course. I understand with most superchargers you get heat soak and turbos build up a lot of heat as well

At least if what is being said in this thread about centris is true

A centri is no more/less efficient than a turbo when it comes to heat production.

If you want to do road course work save yourself a LOT of headache and leave it NA. This is coming from someone who sells blowers.

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[ProChargerTECH]

So, since heat is ultimately the killer of an engine. Would it be safe to say a centri supercharger would be the "best" fi to use if you wanted to have fi and hit up a road course. I understand with most superchargers you get heat soak and turbos build up a lot of heat as well

At least if what is being said in this thread about centris is true

Take a roots/screw blower car, and do 10 back to back dyno pulls.
Then do the same thing with a Centrifugal car.

Then look at the HP numbers, and Heat Created.
The results can be pretty staggering.

This is why here at ProCharger we set out to create the ULTIMATE supercharger. One that would have the IAT's of a standard centrifugal, however have the boost curve of a turbo or roots/screw blower. And that creation has won plenty of awards, and patents The ProCharger i1

 

[ProChargerTECH]

A centri is no more/less efficient than a turbo when it comes to heat production.

When using a Turbo on road course applications, the long term underhood heat from the exhaust system needs to be taken into account. As well as the back pressure (EGT's) effect on the engine timing numbers, unless race gas is used. (These factors are not present on a Centrifugal supercharged car)

Look at what BMW's and Mercedes are doing these days, even Ford road racing their ECOBoost stangs around. (As well as all the turbo powered race cars) Turbos are amazing on road courses when LOTS of engineering goes into them, to deal with long term heat production.

 

[beefcake]

I'm just debating for the fun of it here.

A centri/turbo car will see higher RPM more often. And RPM is the #1 killer of motors.

If the tires are spinning there is no driveline shock.

I disagree, most engines break at peak torque, not redline

 

[ProChargerTECH]

I'm just debating for the fun of it here.

A centri/turbo car will see higher RPM more often. And RPM is the #1 killer of motors.

?? What ??

If that logic was correct then anyone running a N/A motor would be killing their motors as well, because obviously people are going to use the RPM range as its intended to be used.

Never once have I seen someone with a roots/screw blower NOT use the RPM range of the car the same as any other forced induction.

So if a person adds your supercharger system to their 2015 Mustang, they now shift their cars at 4,000rpm?
I highly doubt it. Your customers will spin the motors the same as everyone else.

Ford spent a LOT of money, making these amazing Coyote motors.
They make amazing High RPM power, and have killer heads and Cams.
It would be a shame not to use this, and enjoy it.

 

[Cobra Commander]

It's what matters to me in a street car. I want my stuff to punch HARD down low.

If I were building a car that went to the strip a lot and actually cared about a few 10ths I would build a centri or turbo car. For a track car I would rather be NA, but if I had to have forced induction it would be a centri or turbo car. For driving around on the street, blasting some twisty back roads and making the occasional trip to the 1/4 I'll take a PD blower.

There is a tool for every job.

Can you explain why, and how much boost is too much for a pd?

 

[ProChargerTECH]

I disagree, most engines break at peak torque, not redline

Correct! Simple Engine 101, its called Peak TQ for reason.

High Load + Low Piston Speed = Hard on an Engine.

Engines that blow up at Redline, usually are a tuning mistake.
Pretty rare to see something break just because of the actual RPM.

Even the early LS7's dropping valves, wasn't and RPM issue.
But a valve flaw.

Honestly the ONLY modern day motor I have heard having RPM issues, was the BMW M3 cars when they first came out.
The "recall" was to lower the revlimiter to keep the motors together. It was 8,000 and they dropped them to 7,600 I believe.

 

[DivineStrike]

I don't have much of a comment but an engine failure due to high rpms is easily possibly not just due to tune. There is alot of energy in an engine of this size spinning that fast. However this coyote seems to hold redline pretty effortlessly like it isn't even breaking a sweat. It is so smooth

 

[SVTFreak]

Guys, there's a lot of things being thrown back and forth as fact here that simply aren't. There are so many variables involved and I don't think anyone here (save maybe prochargertech dude of he's involved in the engineering) can provide the calculations and data to back it up.

The only solid truth is you should pick the type ofblower properly sized for your intended use. Get a good tune and it will last forever.

 

[ProChargerTECH]

I don't have much of a comment but an engine failure due to high rpms is easily possibly not just due to tune. There is alot of energy in an engine of this size spinning that fast. However this coyote seems to hold redline pretty effortlessly like it isn't even breaking a sweat. It is so smooth

Correct there are a LOT of factors.

But what I was trying to say is that Ford really designed a great engine.
This coyote has no issues with RPM, and loving every second of it.
Just like owning a motorcycle with a 12,000 rpm redline.

I was stating that the only time I have heard of an OEM having a real issue with RPM causing failures was the BWM example I listed above.

 

[pinero61]

I think I may end up going Centri rather than turbo on this application. I love spooling up the little bastards in my truck, but running a setup on a car that was never intended for turbos will be a bit of a PITA.

 

[sqidd]

Can you explain why, and how much boost is too much for a pd?

Why what? I'm not sure I follow.

Too much boost is when you run out of ocatane or break the motor. Otherwise it's just right.

 

[sqidd]

I disagree, most engines break at peak torque, not redline

Increase the torque a Coyote makes by 60% and what do you have? Every stock long block blown Coyote.

Increase the RPM that the Coyote runs at by 60% and what do you have? Scrap metal.

RPM's kill motors.

 

[beefcake]

Increase the torque a Coyote makes by 60% and what do you have? Every stock long block blown Coyote.

Increase the RPM that the Coyote runs at by 60% and what do you have? Scrap metal.

RPM's kill motors.

lmao

yes, because we are spinning all of these to 10000+ rpms, lol

 

[Cobra Commander]

So I've noticed that everyone is talking about belt driven induction. What about exhaust driven induction. What are the pros and cons of putting a set of twins under the hood of your daily driver?

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