01 HD 8.1 super charger - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevyben · 05-13-2010, 04:52 PM

I just finished a Paxton super charger in my 01 HD withan 8.1. I'm running 5-6 pounds of boost. With an after cooler. I relly like it alot. Has any one else do this mod and have you run more than 5-6 pounds of boost?

chevyben · 05-20-2010, 12:14 AM

No one has a blown 8.1?

DirtyLarry · 05-21-2010, 09:36 AM

It doesn’t look like it. I have two trucks with 8.1’s. The one in the ’78 has had significant ECM tuning and runs circles around the stock 8.1L in the 2001 HD. I could only imagine how well one would run with a blower! I bet you are real happy with that!

skidder111 · 05-21-2010, 10:06 AM

I put an ATI Procharger with intercooler on my '00 7.4. Runs 5-6 pounds. It woke it up but still eats fuel.

chevyben · 05-21-2010, 02:53 PM

Ha dirtylarry how did you do the tune on your 8.1? Tunner or ?thanks Ben

***Josh*** · 05-21-2010, 06:13 PM

Quote:

Originally Posted by skidder111

I put an ATI Procharger with intercooler on my '00 7.4. Runs 5-6 pounds. It woke it up but still eats fuel.

Not meaning to threadjack but how well does it do? Did it help economy any at all or does it just pull a lot better while still eating the same amount of fuel? I've been contemplating supercharging my 99 dually in the far future when I'm able to upgrade to a larger camper and would like more power for towing.

skidder111 · 05-25-2010, 12:51 PM

Josh - Running empty mileage did not really change but I saw a 15-20% improvement in towing mileage. Take note that I installed a Banks Power Pak (headers & catbak). Cats are absent as well. I think changing gears from 3.73 to 4.10 would make better use of the power made at cruising RPMs while towing. Also, monitor trans temps. Good luck.

05-13-2010, 04:52 PM	#1
chevyben Registered User Join Date: Mar 2004 Location: SoCal Posts: 8	01 HD 8.1 super charger I just finished a Paxton super charger in my 01 HD withan 8.1. I'm running 5-6 pounds of boost. With an after cooler. I relly like it alot. Has any one else do this mod and have you run more than 5-6 pounds of boost? __________________ 67 chev 383 stroker 4x4 36's SOLD! 70 chev 2 1/2 axles 48's 427 being rebuilt ground up 72 gmc sub 402 4speed FOR SALE 67 chev lowered 250/6 3 carbs etc SOLD 71 gmc highserria 400 SOLD 88 sub 4x4 36's SOLD 77 gmc crew cab 454 SOLD 80 blazer 4x4 lift etc in works SOLD 01 hd 8.1 2wd goin' soild axle etc lots of new stuff

05-20-2010, 12:14 AM	#2
chevyben Registered User Join Date: Mar 2004 Location: SoCal Posts: 8	Re: 01 HD 8.1 super charger No one has a blown 8.1? __________________ 67 chev 383 stroker 4x4 36's SOLD! 70 chev 2 1/2 axles 48's 427 being rebuilt ground up 72 gmc sub 402 4speed FOR SALE 67 chev lowered 250/6 3 carbs etc SOLD 71 gmc highserria 400 SOLD 88 sub 4x4 36's SOLD 77 gmc crew cab 454 SOLD 80 blazer 4x4 lift etc in works SOLD 01 hd 8.1 2wd goin' soild axle etc lots of new stuff

05-21-2010, 09:36 AM	#3
DirtyLarry Windy Corner of a Dirty Street Join Date: Jun 2003 Location: Pueblo West, Colorado Posts: 2,926	Re: 01 HD 8.1 super charger It doesn’t look like it. I have two trucks with 8.1’s. The one in the ’78 has had significant ECM tuning and runs circles around the stock 8.1L in the 2001 HD. I could only imagine how well one would run with a blower! I bet you are real happy with that! __________________ Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles Instagram

05-21-2010, 10:06 AM	#4
skidder111 Registered User Join Date: Jan 2008 Location: Pincher Creek, Alberta, Canada Posts: 141	Re: 01 HD 8.1 super charger I put an ATI Procharger with intercooler on my '00 7.4. Runs 5-6 pounds. It woke it up but still eats fuel.

05-21-2010, 02:53 PM	#5
chevyben Registered User Join Date: Mar 2004 Location: SoCal Posts: 8	Re: 01 HD 8.1 super charger Ha dirtylarry how did you do the tune on your 8.1? Tunner or ?thanks Ben __________________ 67 chev 383 stroker 4x4 36's SOLD! 70 chev 2 1/2 axles 48's 427 being rebuilt ground up 72 gmc sub 402 4speed FOR SALE 67 chev lowered 250/6 3 carbs etc SOLD 71 gmc highserria 400 SOLD 88 sub 4x4 36's SOLD 77 gmc crew cab 454 SOLD 80 blazer 4x4 lift etc in works SOLD 01 hd 8.1 2wd goin' soild axle etc lots of new stuff

05-25-2010, 12:51 PM	#7
skidder111 Registered User Join Date: Jan 2008 Location: Pincher Creek, Alberta, Canada Posts: 141	Re: 01 HD 8.1 super charger Josh - Running empty mileage did not really change but I saw a 15-20% improvement in towing mileage. Take note that I installed a Banks Power Pak (headers & catbak). Cats are absent as well. I think changing gears from 3.73 to 4.10 would make better use of the power made at cruising RPMs while towing. Also, monitor trans temps. Good luck.



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