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horsepower
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Topic: horsepower (Read 8897 times)
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
horsepower
«
on:
December 06, 2010, 09:40:51 PM »
I was told by a guy who buils racing engines and 1/4 mile cars that if you remove the clutch fan on the water pump pulley and replace it with 2 electric fans, you can boos your horse power by like 40 because the engine doesn't have to spin the fan. Is this accurate?
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
Captkaos
OWNER and Administrator
Administrator
Senior Member
Posts: 18370
Re: horsepower
«
Reply #1 on:
December 06, 2010, 10:07:29 PM »
40, NO. More like 5 and it isn't at you peak horsepower....
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Chris Lucas
73-87chevytrucks
captkaoscustoms
squarebody
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: horsepower
«
Reply #2 on:
December 06, 2010, 10:21:13 PM »
So would I get any benefit at all from swapping to electric fans?
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
Captkaos
OWNER and Administrator
Administrator
Senior Member
Posts: 18370
Re: horsepower
«
Reply #3 on:
December 06, 2010, 10:34:40 PM »
yes, but not 40hp. It will generally give you better gas mileage.
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Chris Lucas
73-87chevytrucks
captkaoscustoms
squarebody
Da67goatman
Site Supporters
Junior Member
Posts: 757
Burban
Re: horsepower
«
Reply #4 on:
December 06, 2010, 10:37:09 PM »
It also lets the truck warm up faster, means less driving in the cold.
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<Pitcrew>
1989 R2500 Suburban mild 350 TBI 700r4 10.5" 14bolt 4.10 w/ 33s
1992 fullsize Blazer 4x4 35s no lift, 4.10s, Hella driving lights, TJ Flares, Huge bumpers, Snorkel, custom interior
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: horsepower
«
Reply #5 on:
December 06, 2010, 10:41:16 PM »
Better gas mileage and warming up faster sounds nice. Would I remover the fan shroud, clutch fan, and attach the electric fans directly against the radiator?
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
Da67goatman
Site Supporters
Junior Member
Posts: 757
Burban
Re: horsepower
«
Reply #6 on:
December 06, 2010, 11:21:40 PM »
Thats what I did. You can make a fan shoud out of sheet aluminum if the fans alone don't cool your engine.
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<Pitcrew>
1989 R2500 Suburban mild 350 TBI 700r4 10.5" 14bolt 4.10 w/ 33s
1992 fullsize Blazer 4x4 35s no lift, 4.10s, Hella driving lights, TJ Flares, Huge bumpers, Snorkel, custom interior
1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: horsepower
«
Reply #7 on:
December 06, 2010, 11:51:27 PM »
Well, as of right now, I have a fan that is an inch smaller than stock, and my radiator is about 3/5ths full and I run at 160-180 at a stop light. So, I think anything would work really. should I just get 2 similar sized fans out of pick-a-part and slap them in my truck wired to the ignition RUN position? is there any way to make them thermostatic, so they only kick on when needed? Because I have a bad battery and I cant run anything too long before I start up.
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: horsepower
«
Reply #8 on:
December 07, 2010, 12:13:03 AM »
they sell temp switches for fans at the parts store. I think they save you fuel when not used but when they are used they draw more from the bat. causing the alt to run harder causing the engine to run harder causing you to burn more fuel then with a clutch but its when they are off it counter reacts all that. and in a 1/4 mile you turn them off so your not using any power except what it takes to run the engine but it will increase your mps by .01
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
txchainsawgogi
Junior Member
Posts: 584
Re: horsepower
«
Reply #9 on:
December 07, 2010, 12:23:29 PM »
Seems kind of pointless if you live in a hot climate.
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78 Chevyrado
Z62 ON-ROAD
Site Supporters
Senior Member
Posts: 2682
Re: horsepower
«
Reply #10 on:
December 07, 2010, 12:50:28 PM »
Plus when it's cold, the clutch won't be dragging the engine power down for the first 4 or 5 miles you drive it, sounding like a WWII jeep. I hate that, especially since when you come out of my driveway sometimes you gotta take off quick or get ran over.
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Kenny
1978 C-20, 350/400, 3.73, Graystone Metallic, Raceline Renegade 8 Wheels - 18x8.5, 275/70R18 BFG KO's
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: horsepower
«
Reply #11 on:
December 07, 2010, 01:24:01 PM »
The fans are off while you at highway speed. And even if you have a clutch it still drags the fan
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
fitz
Senior Member
Posts: 2084
Re: horsepower
«
Reply #12 on:
December 07, 2010, 04:26:36 PM »
My electric fan is placed inside the factory shroud.
The fan is bolted to 1" metal strips that are bolted to the radiator (hidden by the shroud) This eliminates the plastic tiewraps that come with the fans(they can wear through the radiator).
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1979C20
Senior Member
Posts: 1659
Kyle Taulton.
Re: horsepower
«
Reply #13 on:
December 07, 2010, 05:11:05 PM »
that looks pretty nice, fitz. but I kind of want to get rid of the fan shroud. Haha. I like neatness and that crowds things,
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
78 Chevyrado
Z62 ON-ROAD
Site Supporters
Senior Member
Posts: 2682
Re: horsepower
«
Reply #14 on:
December 07, 2010, 05:16:13 PM »
Look for a thread vilezambonie put up about his E-fan. he made a flat pan to mount the fan to. Looks the best I've seen.
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Kenny
1978 C-20, 350/400, 3.73, Graystone Metallic, Raceline Renegade 8 Wheels - 18x8.5, 275/70R18 BFG KO's
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horsepower