New Procharger F1A just installed and tuned!!
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Registered User
Joined: Apr 2005
Posts: 1,546
From: Florence, Kentucky
New Procharger F1A just installed and tuned with write up!!
Guys,
I thought I would make a write up about this supercharger. I had a hard time deciding if this was too much supercharger for a daily driver. The old P1SC had been maxed out at 10 psi and I wanted more power. I thought about sending in my P1SC and having it upgraded to a D1SC for 1200. It was 2400 for a new D1SC and 2740 for an new F1a. After doing the math it became apparent that it is not cost effective to rebuild to a D1SC when I can sell my P1SC for $1500.
The F1A has the most sophisticated impellor I've ever seen. It has blades that reach out into the intake. There is a second set of blades deeper inside the housing. It appears to be machined out of a solid piece of metal with some kind of precision CNC cutter.
Installation was straight forward. I had to grind about a 1/2 inch off the corner of the block. The case has the same bolt holes as the P1SC so it bolted right up. Also the intake is about 1/8 inch smaller so I had to tighen my intake clamp up a little extra. The transmission part of the case is a little bigger than a P1SC. Thus the reason to grind the block. I don't have ABS so if you have that it may require some grinding also. It only used 4 ounces of oil as opposed to 6 ounces for a P1SC.
The transmission step up is 5.4 to 1 instead of 4.10 to 1 on the P1SC. This means that I can run a 7.65 crank pulley and a 4.5 blower pulley and make 15psi!!! Also, running bigger pulleys promotes less belt slip. Right now I'm using the SDCE 8 rib setup. With a new belt I have no slip. Only time will tell if it starts slipping once the belt wears. A 4.5 blower pulley is the absolute biggest you can run with the SDCE setup. I could go smaller on the crank pulley (6.45) but then I might run into belt slip issues. So this blower can be pullied down for more modest amounts of boost.
After taking it out for a spin today all I can say is WOW.
This car is a torque monster. With my smallish cam and street ported heads its making 7 psi at 4000 rpm. It feels like I added 100 ft pds of torque. I had so much fun I burned up a 1/2 tank of gas just peeling the tires around town. 
Its very streetable and easy to control. It is slightly louder but hardly noticeable inside the car. Outside the car it is a head turner.
I programmed in a little less timing(25 degrees) and little more fuel for safety. I also programmed the "Throttle Position for WOT" table for 28 degrees at all rpms. I didn't want to be running stochiometric 14.7 at all when its hits boost. So now I just press the pedal 30 degrees and the computer commands a nice smooth 11.8 AFR. With Tunercat for OBD2 and a Dynojet WB Commander it took me about 30 minutes to nail down the new tune.
BTW Procharger made up for their shipping mistake by sending me a 4.25 blower pulley for free. I'm already toying with the idea of putting it on. LOL. Thanks Procharger and Exotic Performance Plus for helping me get just what I was looking for.
Click here to see Video
I thought I would make a write up about this supercharger. I had a hard time deciding if this was too much supercharger for a daily driver. The old P1SC had been maxed out at 10 psi and I wanted more power. I thought about sending in my P1SC and having it upgraded to a D1SC for 1200. It was 2400 for a new D1SC and 2740 for an new F1a. After doing the math it became apparent that it is not cost effective to rebuild to a D1SC when I can sell my P1SC for $1500.
The F1A has the most sophisticated impellor I've ever seen. It has blades that reach out into the intake. There is a second set of blades deeper inside the housing. It appears to be machined out of a solid piece of metal with some kind of precision CNC cutter.
Installation was straight forward. I had to grind about a 1/2 inch off the corner of the block. The case has the same bolt holes as the P1SC so it bolted right up. Also the intake is about 1/8 inch smaller so I had to tighen my intake clamp up a little extra. The transmission part of the case is a little bigger than a P1SC. Thus the reason to grind the block. I don't have ABS so if you have that it may require some grinding also. It only used 4 ounces of oil as opposed to 6 ounces for a P1SC.
The transmission step up is 5.4 to 1 instead of 4.10 to 1 on the P1SC. This means that I can run a 7.65 crank pulley and a 4.5 blower pulley and make 15psi!!! Also, running bigger pulleys promotes less belt slip. Right now I'm using the SDCE 8 rib setup. With a new belt I have no slip. Only time will tell if it starts slipping once the belt wears. A 4.5 blower pulley is the absolute biggest you can run with the SDCE setup. I could go smaller on the crank pulley (6.45) but then I might run into belt slip issues. So this blower can be pullied down for more modest amounts of boost.
After taking it out for a spin today all I can say is WOW.
This car is a torque monster. With my smallish cam and street ported heads its making 7 psi at 4000 rpm. It feels like I added 100 ft pds of torque. I had so much fun I burned up a 1/2 tank of gas just peeling the tires around town. Its very streetable and easy to control. It is slightly louder but hardly noticeable inside the car. Outside the car it is a head turner.I programmed in a little less timing(25 degrees) and little more fuel for safety. I also programmed the "Throttle Position for WOT" table for 28 degrees at all rpms. I didn't want to be running stochiometric 14.7 at all when its hits boost. So now I just press the pedal 30 degrees and the computer commands a nice smooth 11.8 AFR. With Tunercat for OBD2 and a Dynojet WB Commander it took me about 30 minutes to nail down the new tune.
BTW Procharger made up for their shipping mistake by sending me a 4.25 blower pulley for free. I'm already toying with the idea of putting it on. LOL. Thanks Procharger and Exotic Performance Plus for helping me get just what I was looking for.
Click here to see Video
Last edited by 97WS6Pilot; Mar 23, 2007 at 09:47 AM.
Thread Starter
Registered User
Joined: Apr 2005
Posts: 1,546
From: Florence, Kentucky
SDCE tensioner and 4.5 blower pulley 450
Big block Hub and ATI Balancer 450
Machine Spacer for ATI Balancer 100
Machine timing cover for BB hub 50
Belt 30
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Joined: Jun 1999
Posts: 972
From: The Haven, Fl
97 I'm am not doubting your model of procharger but are you sure it's an F1A and not an F1? I don't see an F1A on their website but I KNOW apparently they do make one as you are the 2nd person I now know that has one. KP of LS1tech did run one on his LS1. Only reason I'm asking is because you mention the oil for the S/C being 4 oz and that's what my F1 takes. Your description of the impellor blade is different and I wish I could see a picture of it but I've got that bullet shaped object sticking out of my impeller as well.
7psi @ 4000 rpm, what's your max psi w/ the 4.5 blower pulley? I've got a 3.4 blower pulley on mine w/ the same size crank pulley being a 7.65.
7psi @ 4000 rpm, what's your max psi w/ the 4.5 blower pulley? I've got a 3.4 blower pulley on mine w/ the same size crank pulley being a 7.65.
Thread Starter
Registered User
Joined: Apr 2005
Posts: 1,546
From: Florence, Kentucky
97 I'm am not doubting your model of procharger but are you sure it's an F1A and not an F1? I don't see an F1A on their website but I KNOW apparently they do make one as you are the 2nd person I now know that has one. KP of LS1tech did run one on his LS1. Only reason I'm asking is because you mention the oil for the S/C being 4 oz and that's what my F1 takes. Your description of the impellor blade is different and I wish I could see a picture of it but I've got that bullet shaped object sticking out of my impeller as well.
7psi @ 4000 rpm, what's your max psi w/ the 4.5 blower pulley? I've got a 3.4 blower pulley on mine w/ the same size crank pulley being a 7.65.
7psi @ 4000 rpm, what's your max psi w/ the 4.5 blower pulley? I've got a 3.4 blower pulley on mine w/ the same size crank pulley being a 7.65.
I haven't had the ***** to run it to redline yet but it should make 15 psi with the current pulley combination.
Holy cow I just saw you have the 3.4 pulley on yours. Have you run it yet. I'm interested to see what psi it will make.
Last edited by 97WS6Pilot; Mar 18, 2007 at 12:49 PM.
Registered User
Joined: Jun 1999
Posts: 972
From: The Haven, Fl
It is definitely an F1A. It says so on the serial tag. I saw the specs on it somewhere on LS1Tech. I think procharger has just not updated their website. Main difference is it is good to 74,000 rpm instead of 70,000 for the F1. Impellor is different. Intake is slightly smaller.
I haven't had the ***** to run it to redline yet but it should make 15 psi with the current pulley combination.
Holy cow I just saw you have the 3.4 pulley on yours. Have you run it yet. I'm interested to see what psi it will make.
I haven't had the ***** to run it to redline yet but it should make 15 psi with the current pulley combination.
Holy cow I just saw you have the 3.4 pulley on yours. Have you run it yet. I'm interested to see what psi it will make.
I should see close to 22 psi but I haven't ran it yet because of the weather. Everytime I get around to starting it the weather gets bad so I'm just going to wait til 15 Apr and be done w/ it vs saying "in two wks". You have any idea how much hp you are going to make w/ that? I'm curious to see what you trap.
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Joined: Apr 2005
Posts: 1,546
From: Florence, Kentucky
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Joined: Oct 2002
Posts: 3,225
From: IN
Yeah the SDCE spacer (and their tensioner) is highway robbery, but they both are quality products.
You guys and your %&$#@!! F1's! I wish I had gotten one instead of my D1 (a large croud quietly nod their heads). I am all maxed out with pullies at only 15.3#'s of boost. I would LOVE to see what 22 #'s would feel like! All and all though I am close to the HP level I wanted (and didn't want to go over due to traction issues on the street), and I believe I will be able to reach what I want with my current D1, just with some added timing enabled by the methanol injection setup I plan on running this year.
Congrats on the new blower man! Sounds like you already are enjoying it! Hurry up and get that thing on a dyno so we can see some numbers!
You guys and your %&$#@!! F1's! I wish I had gotten one instead of my D1 (a large croud quietly nod their heads). I am all maxed out with pullies at only 15.3#'s of boost. I would LOVE to see what 22 #'s would feel like! All and all though I am close to the HP level I wanted (and didn't want to go over due to traction issues on the street), and I believe I will be able to reach what I want with my current D1, just with some added timing enabled by the methanol injection setup I plan on running this year.
Congrats on the new blower man! Sounds like you already are enjoying it! Hurry up and get that thing on a dyno so we can see some numbers!
Thread Starter
Registered User
Joined: Apr 2005
Posts: 1,546
From: Florence, Kentucky
Yeah the SDCE spacer (and their tensioner) is highway robbery, but they both are quality products.
You guys and your %&$#@!! F1's! I wish I had gotten one instead of my D1 (a large croud quietly nod their heads). I am all maxed out with pullies at only 15.3#'s of boost. I would LOVE to see what 22 #'s would feel like! All and all though I am close to the HP level I wanted (and didn't want to go over due to traction issues on the street), and I believe I will be able to reach what I want with my current D1, just with some added timing enabled by the methanol injection setup I plan on running this year.
Congrats on the new blower man! Sounds like you already are enjoying it! Hurry up and get that thing on a dyno so we can see some numbers!
You guys and your %&$#@!! F1's! I wish I had gotten one instead of my D1 (a large croud quietly nod their heads). I am all maxed out with pullies at only 15.3#'s of boost. I would LOVE to see what 22 #'s would feel like! All and all though I am close to the HP level I wanted (and didn't want to go over due to traction issues on the street), and I believe I will be able to reach what I want with my current D1, just with some added timing enabled by the methanol injection setup I plan on running this year.
Congrats on the new blower man! Sounds like you already are enjoying it! Hurry up and get that thing on a dyno so we can see some numbers!
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Joined: Feb 2000
Posts: 2,026
From: Japan
What size pulley combination are you running, and up to what what RPM?
Yeah the SDCE spacer (and their tensioner) is highway robbery, but they both are quality products.
You guys and your %&$#@!! F1's! I wish I had gotten one instead of my D1 (a large croud quietly nod their heads). I am all maxed out with pullies at only 15.3#'s of boost. I would LOVE to see what 22 #'s would feel like! All and all though I am close to the HP level I wanted (and didn't want to go over due to traction issues on the street), and I believe I will be able to reach what I want with my current D1, just with some added timing enabled by the methanol injection setup I plan on running this year.
Congrats on the new blower man! Sounds like you already are enjoying it! Hurry up and get that thing on a dyno so we can see some numbers!
You guys and your %&$#@!! F1's! I wish I had gotten one instead of my D1 (a large croud quietly nod their heads). I am all maxed out with pullies at only 15.3#'s of boost. I would LOVE to see what 22 #'s would feel like! All and all though I am close to the HP level I wanted (and didn't want to go over due to traction issues on the street), and I believe I will be able to reach what I want with my current D1, just with some added timing enabled by the methanol injection setup I plan on running this year.
Congrats on the new blower man! Sounds like you already are enjoying it! Hurry up and get that thing on a dyno so we can see some numbers!
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Joined: Oct 2002
Posts: 3,225
From: IN
My blower pulley is a 3.40 pulley, and the crank pulley is a 7.65 pulley. I saw 15.3#'s of boost at 7,000 RPM. There are a few things in my setup that aren't helping things such as my AFR 180 heads, or my gargantuan cam I am running, or my Huge FMIC. We'll see if a new metal inlet tube + the new tune with the meth gains me any additional #'s this year, although I doubt I will see much if anything gained boost wise.