Talk about prochargers
Jul 20, 2017 | 07:53 AM
#281
If you wanted to stay in the 700 rwhp range, I'd tell you to do the D1sc/x all day long as belt reliability can be bullet proof with that set up fairly easy if don't properly.
Obviously, the F-series blowers are going to require a little different approach to make sure you have reliability with the belts and stuff but it can still be done. It'll just cost a little more money. The upside to the F-series is better efficiency at higher boost levels, which can help manage IAT's a little better, also they will allow much further room to grow (even though the P, D and F1/F2 blowers can all use the same bracketry with the exception of the F1x-12).
Boost is addictive, but you have to be careful not to fall into the trap of you project evolving into an unfriendly race truck. That can happen easy as boost addiction is real.
Not sure what kind of vehicle you are looking at doing this with or all of the creature comforts that you would like mandatory so I can't offer much more than that.
If you need to get a plan together, let me know and I may be able to point you in the right direction.
Obviously, the F-series blowers are going to require a little different approach to make sure you have reliability with the belts and stuff but it can still be done. It'll just cost a little more money. The upside to the F-series is better efficiency at higher boost levels, which can help manage IAT's a little better, also they will allow much further room to grow (even though the P, D and F1/F2 blowers can all use the same bracketry with the exception of the F1x-12).
Boost is addictive, but you have to be careful not to fall into the trap of you project evolving into an unfriendly race truck. That can happen easy as boost addiction is real.
Not sure what kind of vehicle you are looking at doing this with or all of the creature comforts that you would like mandatory so I can't offer much more than that.
If you need to get a plan together, let me know and I may be able to point you in the right direction.
Jul 20, 2017 | 01:31 PM
#282
On The Tree
Joined: Jan 2016
Posts: 111
Likes: 1
From: Fort Walton Beach Fl.
Is it possible to moderate the boost on a procharger setup using a wastegate between the intercooler and throttle body? My thought was rather than constantly changing pullies and belts just set them up to provide what your setup can handle than use the wg and a controller to dial it back or ramp it in as needed.
Jul 20, 2017 | 02:34 PM
#284
On The Tree
Joined: Jan 2016
Posts: 111
Likes: 1
From: Fort Walton Beach Fl.
Jul 20, 2017 | 02:47 PM
#286
On The Tree
Joined: Jan 2016
Posts: 111
Likes: 1
From: Fort Walton Beach Fl.
I understand it takes power to compress the air but how much more does it take? If it takes x HP to make say 10lbs does x just simply double in order to make 20lbs? Would the cost in HP be worth the ability to fine tune a boost curve?
Jul 20, 2017 | 03:09 PM
#287
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
Depends on those things. A ballpark, for something like a whipple, 15psi of boost at 1450cfm at 6000 at 72% efficieny is 140hp.
A procharger is driven off the crank, which is controlled by the throttle....so just control the throttle and there ya go!
Jul 20, 2017 | 04:15 PM
#288
It should take a lot less power to blow air out a big enough waste gate compared to compressing air into an engine. A variable speed transmission on the procharger would be a better idea. You could overdrive it at low engine speeds and slow it down at higher rpm to give more linear boost. Or just use it as a speed limiter to limit boost. Just use a CVT from a motorcycle and control it with a cable. Easy peasy! 
Jul 22, 2017 | 04:36 AM
#290
Is it possible to moderate the boost on a procharger setup using a wastegate between the intercooler and throttle body? My thought was rather than constantly changing pullies and belts just set them up to provide what your setup can handle than use the wg and a controller to dial it back or ramp it in as needed.