FRPP Intake Manifold with Turbo Results

[Bobby]

i didt know you had them. i have them and love them also

 

[JeremyH]

i didt know you had them. i have them and love them also

I love mine as well. Very nice mod!

 

[menace07]

your engine compartment is a thing of beauty!

 

[JeremyH]

your engine compartment is a thing of beauty!

 

[Goose]

Did boost drop with the FRPP manifold vs. stock? In theory, if it is flowing more, I would almost expect boost to drop somewhat.

The intake does flow more then stock, but you wont see the boost drop on a turbo because the boost controller (eboost2) is set to 12 psi, unlike with a supercharger whose pressure is controlled by pulleys.

 

[JeremyH]

The intake does flow more then stock, but you wont see the boost drop on a turbo because the boost controller (eboost2) is set to 12 psi, unlike with a supercharger whose pressure is controlled by pulleys.

Not exactly, to reach target boost with the eboost2 you just set desired duty cycle of the wastgate, it doesnt go off an exact boost(psi) number setting. The set point duty cycle is going to give different results from setup to setup. My dc set point is at 35 which gave me 11.8-12.1 max boost on the stock manifold. After the swap it still read 11.9 lbs.

The eboost2 controlls boost level off the duty cycle of the wastgate to prevent over boost. If target boost was based on a manifold pressure value ie (12.0 psi) and you develop a coldside piping/coupler leak the controller would try to compensate and you could over spin the turbo or over boost trying to reach the desired manifold pressure value.

 

[Bobby]

exactly.