Re: Blower motor on the dyno
[Re: AndyF]
#2701891
09/29/19 02:09 AM
09/29/19 02:09 AM
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Joined: Oct 2006
Posts: 1,262 New York, USA
Chargerfan68
pro stock
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pro stock
Joined: Oct 2006
Posts: 1,262
New York, USA
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Nice! How much boost, and what size blower is that. 8-71?
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: Blower motor on the dyno
[Re: Chargerfan68]
#2701904
09/29/19 07:34 AM
09/29/19 07:34 AM
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Joined: Oct 2004
Posts: 3,097 back in Georgia
dthemi
master
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master
Joined: Oct 2004
Posts: 3,097
back in Georgia
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Blowers are big time fun. I hear lots of long winded explanations of how terrible, and inefficient they are. Blah blah blah,,just something about them I've always loved. They're all in your face, your ears, and toss ya in the seat faster than any other adder.
Last edited by dthemi; 09/29/19 07:35 AM.
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Re: Blower motor on the dyno
[Re: AndyF]
#2701935
09/29/19 11:22 AM
09/29/19 11:22 AM
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Joined: Sep 2012
Posts: 46
Frackster
member
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member
Joined: Sep 2012
Posts: 46
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Is that going in a jetboat? What type?
Last edited by Frackster; 09/29/19 11:22 AM.
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Re: Blower motor on the dyno
[Re: AndyF]
#2701950
09/29/19 12:09 PM
09/29/19 12:09 PM
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Joined: Dec 2006
Posts: 2,094 Byron, NY
W.I.N. Racing
top fuel
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top fuel
Joined: Dec 2006
Posts: 2,094
Byron, NY
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'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd
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Re: Blower motor on the dyno
[Re: Frackster]
#2701951
09/29/19 12:10 PM
09/29/19 12:10 PM
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Joined: Jan 2003
Posts: 30,947 Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 30,947
Oregon
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Is that going in a jetboat? What type? I think the owner said it is a V drive with a Powerglide trans and a prop
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Re: Blower motor on the dyno
[Re: AndyF]
#2701969
09/29/19 12:53 PM
09/29/19 12:53 PM
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Joined: May 2011
Posts: 4,488 northern,Ohio,USA
Clanton
master
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master
Joined: May 2011
Posts: 4,488
northern,Ohio,USA
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I am sure the TQ was nice with 16#.I used an Isky solid .557 on 110 that made big tq but with 452 iron heads.Thank you for sharing.
Last edited by Clanton; 09/29/19 01:24 PM.
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Re: Blower motor on the dyno
[Re: AndyF]
#2702318
09/30/19 04:58 PM
09/30/19 04:58 PM
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Joined: Oct 2014
Posts: 147 AZ
squirrel
member
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member
Joined: Oct 2014
Posts: 147
AZ
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The blower is run 10% over. It was making 16 inches of boost at 6000 rpm. he said inches...everyone else is saying pounds...??? I think it's a bit more conservative than folks are reading into it. I've been driving around with a couple different blown BBCs for 30 years, yeah, they're fun!
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Re: Blower motor on the dyno
[Re: blowndart]
#2702319
09/30/19 05:01 PM
09/30/19 05:01 PM
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Joined: Aug 2003
Posts: 43,007 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Maybe it's just me... but 700 HP at 16 lbs of boost seems a little lower than I would expect for an engine that size with aftermarket heads. Even with a conservative cam. I've seen similar results on a LS6 crate motor with a small bore BDS 6.:71 with two Holley 650 center squirters on 91 octane CA pump swill back in the early 2000s That motor had a set of the old TRW forged turbo pistons with a reverse dome(7.5 to 1 comp ratio) and a small hydraulic blower cam, it made 620 HP with 5 lbs. of boost at around 6000 RPM if I'm remembering correctly now. The customer wanted me to JUST check it out initially, physical inspection on the bottom end and a leak down test due to the engine being used out of a street hot rod(1 ton dually Chevy 4 door pickup ) and then he had me dyno test it to make sure it ran and didn't leak. That led to him wanting more power so I bought two more blower pulleys to make more boost and loaned him a set of 850 B.G. Speed Demon carbs I had in stock and swapped the cam to a Comp Cams solid roller set up and put a gear drive on it per his buddy advice Those changes ended up making right at 780 HP at 6700 RPM with around 12.0 lbs. of boost, the manifold inlet temps went from 130 F with the lower boost to 190 F with the higher boost levels It did make 700 HP at 7000 RPM with 7.0 lbs. of boost with a smaller blower pulley and his carbs jetted to the best power, he put that motor in a 1972 SS Chevelle he had and he loved it, it would smoke the tires pretty easily according to him
Last edited by Cab_Burge; 09/30/19 05:06 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Blower motor on the dyno
[Re: squirrel]
#2702356
09/30/19 07:19 PM
09/30/19 07:19 PM
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Joined: Jan 2003
Posts: 964 Odessa, Fl
blowndart
super stock
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super stock
Joined: Jan 2003
Posts: 964
Odessa, Fl
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The blower is run 10% over. It was making 16 inches of boost at 6000 rpm. he said inches...everyone else is saying pounds...??? I think it's a bit more conservative than folks are reading into it. I've been driving around with a couple different blown BBCs for 30 years, yeah, they're fun! 16 inch of Mercury? That make more sense. I was confused by others referring to 16 PSI.
Last edited by blowndart; 09/30/19 07:21 PM.
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