Procharger Stage 2 Install

[Phils15GT]

700rwhp is certainly doable on 93 pump gas. Dyno in my sig.

What pulley are you running and what are you seeing for boost? What are you reving to?

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[Barrel]

What pulley are you running and what are you seeing for boost? What are you reving to?

4.5" pulley but I stop making power at ~6700rpm at about 13psi. I make 14.5psi at redline. I'm trying to get some time to do some logging but I generally only get to drive my car to work or specific errands. The downside of having a baby...

Trying to see if anyone is making good power above 6700rpm on the stock 15 manifold or if there is a restriction there that could be resolved by something like the MMR one.

 

[Phils15GT]

Lund has my car shifting at 7500 RPMs and I usually see around 12lbs at that point.

 

[ProChargerTECH]

4.5" pulley but I stop making power at ~6700rpm at about 13psi. I make 14.5psi at redline. I'm trying to get some time to do some logging but I generally only get to drive my car to work or specific errands. The downside of having a baby...

Trying to see if anyone is making good power above 6700rpm on the stock 15 manifold or if there is a restriction there that could be resolved by something like the MMR one.

Plenty of people have made power past 6,700 since day one.
I haven't kept up on all of them, but 700rwhp are pretty normal.

However, ONLY if your fuel octane is there.
If the fuel can't support it, the car is gonna pull power back.

Just saw a couple videos on youtube recently of this.
[ame]

 

[Barrel]

I can make more power with more boost earlier in the range. The video you have doesn't have a graph to compare. It appears, emphasis on appears, that above 6700rpm and regardless of hp level and boost that I stop making power. We played with it a bit before settling on my current power/boost level. I'd really be interested in a graph from one of the Boss intake guys.

 

[ProChargerTECH]

I can make more power with more boost earlier in the range. The video you have doesn't have a graph to compare. It appears, emphasis on appears, that above 6700rpm and regardless of hp level and boost that I stop making power. We played with it a bit before settling on my current power/boost level. I'd really be interested in a graph from one of the Boss intake guys.

Let me find our graph, of our stock car, stock tune.
I know its hard to read, and our RPM reading is a bit off.
But this run the revlimiter was set at 7,400rpm.
The dyno stopped recording at 7,100

(Mustang Dyno's aren't easy to "bang off the revlimiter" like the DynoJets)

This was on the 3rd back to back run, on 91 octane fuel.
After the car came back from a highway drive. (9psi)

You can see after 6,300 it pulled about 1 degree of timing, due to not having 93 in the tank.

 

[z06psi]

So after talking with PC today the bullet valve (closed) is on its way. I will mess with the surge piping when it comes in. They suggested that 12-13 is really the limit for the Proflow.

Sent from my SM-N910V using Tapatalk

 

[gqneon]

So after talking with PC today the bullet valve (closed) is on its way. I will mess with the surge piping when it comes in. They suggested that 12-13 is really the limit for the Proflow.

Sent from my SM-N910V using Tapatalk

Hey Z06PSI and Procharger, is the bullet adjustable at all?

Tapatalk spelling errors inside!

 

[ProChargerTECH]

Hey Z06PSI and Procharger, is the bullet adjustable at all?

Tapatalk spelling errors inside!

? ByPass Valves are not adjustable.

I think you are referring to how a turbo uses a BOV.
(Because they use spring pressure sometimes to stay closed)

 

[z06psi]

Hey Z06PSI and Procharger, is the bullet adjustable at all?

Tapatalk spelling errors inside!

Why would you want an adjustable one? What is your logic behind that?

 

[gqneon]

To reduce surge by making the transition to boost less sharp, it was a suggestion from Lund. Surge where the valve wants to go open closed open closed, like holding throttle in a road course turn waiting for your exit, it surges upsetting the chassis. Trying to fix that.

Tapatalk spelling errors inside!

 

[Process]

To reduce surge by making the transition to boost less sharp, it was a suggestion from Lund. Surge where the valve wants to go open closed open closed, like holding throttle in a road course turn waiting for your exit, it surges upsetting the chassis. Trying to fix that.

Tapatalk spelling errors inside!

Tial Q has different springs.

 

[ProChargerTECH]

To reduce surge by making the transition to boost less sharp, it was a suggestion from Lund. Surge where the valve wants to go open closed open closed, like holding throttle in a road course turn waiting for your exit, it surges upsetting the chassis. Trying to fix that.

Tapatalk spelling errors inside!

I hate to be the guy that says this,
But that is NOT the issue.

A supercharger bypass valve, is NOT a Blow off Valve.

There is to be NO spring holding anything back.

If the throttle blade commands the car to be in vacuum, the valve is open.
If the throttle blade commands the car to be in boost, the valve is closed.

Making this happen AS FAST as possible, is the name of the game.
The LAST thing you want is a valve staying shut, while it should be open.

HELLLLLO BLOWER SURGE.



EXAMPLE: Look at the literally millions of OEM supercharged cars on the planet, and what they use for bypass valves. (Butterflys or Bosch style with no springs)

 

[ProChargerTECH]

Tial Q has different springs.

Which its intent is to be used with Turbos with those springs.

 

[Process]

Which its intent is to be used with Turbos with those springs.

and has a lot of success on SC cars.

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