Supercharger #3. Procharger D1SC

Doug M

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Great #'s so far! Really excited for a comparison point of view from you, comparing the other power adders setups you have owned.
 

BruceH

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Great #'s so far! Really excited for a comparison point of view from you, comparing the other power adders setups you have owned.

Procharger D1SC: Street manners are very nice. It builds power down low and keeps on going. The 4.1 drive ratio of the supercharger helps to build power fast. The faster it spins the more power that comes out. Think of it as a hybrid between a centri and pd. A belt driven turbo. Comes from the factory as a blow through and with a high rpm billet wheel.

Paxton: Nice street manners, lots of power up top. For lack of a better term I'll say it just doesn't "spool up" as fast as the procharger due to the 3.6 drive ratio. It's also not an apples to apples comparison because the D1 can move 1400 cfm while the Paxton SL moves 1200 cfm max. A better comparison would be the bigger Paxton/Vortech (2000 and ysi?). Still, the Paxton is a great value. IMO it needs to be converted to blow through to get the most out of it.

Whipple: My experience was that once the power got above 525 or so the street manners were gone. The nice thing about a twin screw is also the bad thing about a twin screw. That thing is it builds max boost as soon as the bypass closes. It's great for instant torque but once that torque gets above a certain number you have to drive like grandpa around town. Just a little too much throttle and you are putting 500rwtq to the ground with the expected consequences of spinning the tires. My best experience with the whipple was around 500-525 rwhp. The Ford Racing calibration is fantastic and keeps power around 475rwhp which is very useable and street friendly.

The one form I haven't tried yet is a turbo. If FRPP releases a kit for the 2012 Focus I'll probably put it on my Focus. Lots of room in the engine compartment.

The reality is they are all good and all have a niche in the performance market.
 

Doug M

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Very well said, Thanks for the info! I hope to own a centri one day, D1 would be my choice, If I had the funds.
 

UltraKla$$ic

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Procharger D1SC: Street manners are very nice. It builds power down low and keeps on going. The 4.1 drive ratio of the supercharger helps to build power fast. The faster it spins the more power that comes out. Think of it as a hybrid between a centri and pd. A belt driven turbo. Comes from the factory as a blow through and with a high rpm billet wheel.

Paxton: Nice street manners, lots of power up top. For lack of a better term I'll say it just doesn't "spool up" as fast as the procharger due to the 3.6 drive ratio. It's also not an apples to apples comparison because the D1 can move 1400 cfm while the Paxton SL moves 1200 cfm max. A better comparison would be the bigger Paxton/Vortech (2000 and ysi?). Still, the Paxton is a great value. IMO it needs to be converted to blow through to get the most out of it.

Whipple: My experience was that once the power got above 525 or so the street manners were gone. The nice thing about a twin screw is also the bad thing about a twin screw. That thing is it builds max boost as soon as the bypass closes. It's great for instant torque but once that torque gets above a certain number you have to drive like grandpa around town. Just a little too much throttle and you are putting 500rwtq to the ground with the expected consequences of spinning the tires. My best experience with the whipple was around 500-525 rwhp. The Ford Racing calibration is fantastic and keeps power around 475rwhp which is very useable and street friendly.

The one form I haven't tried yet is a turbo. If FRPP releases a kit for the 2012 Focus I'll probably put it on my Focus. Lots of room in the engine compartment.

The reality is they are all good and all have a niche in the performance market.

Sounds just like a problem I'D love to have!!!!:thumb2:
 

BruceH

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Final update. Have installed 95lb Bosch Racing injectors which are fantastic from idle to redline, very predictable and precise. Ran into a problem being able to make a full pull. Have since rectified that problem and made a few full pulls.

I'm going to keep the rpms below 6500. This motor has way more power going through it than it was set up for. I'm running Mahle flattop 4032 pistons with .0015" ptb clearance. That's a little more than the GT500 spec for a stock motor. Pistons are .030 overbore. It's a 1L WAP block from a 2004 Mach 1. I had originally intended for this to be an na only motor but things changed.

SAE corrected and Uncorrected numbers on E85. I'm including uncorrected because that is how much force is going through the motor components. Spark was only around 19 degrees. Load was over 2.3! Boost indicated 16+ on my cheap analog gauge.

I'll spend the afternoon going over datalogs and tweaking the a/f. I didn't want to spend too much time doing it on the dyno. Just wanted to get it close and safe and turn off the money.

2-15-13DynoSAE_zpsd99648ca.jpg


2-15-13DynoUncorrected_zps5eb0cb96.jpg
 

stkjock

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700/588?
U leaving it there?
Gotta love the corn!
 

Doug M

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Wow, very nice! Got to be a really fun ride for sure, could this be your last FI setup:) Man do I want this for my ride so bad! Congrats Bruce.
 

BruceH

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700/588?
U leaving it there?
Gotta love the corn!

I'm leaving it alone. It may even get a larger pulley and switched over to gasoline later in the summer. At this level I'm a little concerned about my homebuilt motor. Once the power starts it comes on so strong it's just nuts on the road.

I love E85. Also have love for the D1.
 

BruceH

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Congrats Bruce. Great numbers!

Would you say this is your favorite setup so far?

Yes. The car is just where it needs to be. All that's left is welding the axle tubes. It almost has the hit of a twin screw and once it starts hitting it just keeps building.
 

Doug M

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The high C.R makes the Centri come alive and stay alive huh?:)
 
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