Blower Question

Old 11-20-2010, 09:22 AM
  #1  
Incognegro
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Default Blower Question

Im getting a great deal on a B&M 140 series blower with the manifold and demon carb. manifold is brand new,carb is new and blower was rebuilt by Holley, none of it was ever installed on his car, he scrapped the project. My question is this:

I have a built 355 sbc with the following build
Machine work
Bore & Hone with deck plate
vat degrease
cam bearings and installation
Deck
Balance

Parts
Pistons KB KB 112 + .040
Rings Childs Albert + .040
Rods Eagle 6" H-beam
Timin Chain Cloys, street Roller
Oil pump Melling high volume(no pick-up)
Main bearings Cleavite 77 "P" std
Rod bearings Cleavite 77 "P" std
Crankshaft Cast steel, Skat
Damper Powerbond HP
Head Gaskets Felpro 1003
Intake gaskets Felpro 1205
Intake manifold Weiland 17530
Solid lifters
3 Comp Cam pushrods
Mr Gasket Head bolts (From Pugh)
ARP 4 bolt main bolts
One World Sportsman II head,springs,locks& seals
Head bolt washers
5 Comp Cams pushrods 7972
cam:
Lunati cam-40146 Intake exhaust
duration 0.543 0.552
[email protected] 249 254

Compression 10.18
world product sportmans heads 202



woul i be safe running the blower on this motor? Keep in mind I plan on running 100 Octane which I have readily available locally. Any input or thoughts?
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Old 11-21-2010, 09:11 AM
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cncmotorsports
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100 octane yes, make sure you pay very close attention to the amount of boost. 4 - 6 pounds on 100 octane will be fine, any more than that will be border line for detonation ( KB pistons will not tolerate any ). Make sure your timing is 32 or 34 degrees and use a colder spart plug, such as a NGK - 8
I think the number is 5672-8 for the sportsman heads or AR133
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Old 11-21-2010, 12:18 PM
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Incognegro
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Originally Posted by cncmotorsports
100 octane yes, make sure you pay very close attention to the amount of boost. 4 - 6 pounds on 100 octane will be fine, any more than that will be border line for detonation ( KB pistons will not tolerate any ). Make sure your timing is 32 or 34 degrees and use a colder spart plug, such as a NGK - 8
I think the number is 5672-8 for the sportsman heads or AR133
I was using the AR132 or 133 I believe. Autolites. 32-34 timing is good? not too high? Also one more question..

Will a holly 750 boost referenced carb be enough flow for this particular Motor and blower combo?

Also, what kind of power will this put out?
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Old 11-22-2010, 07:32 PM
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cncmotorsports
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Carb will be fine, combo should make 500 HP
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Old 11-22-2010, 10:26 PM
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kwkracing
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In my opinion the only worse piston to use for that would be a stock one than a kb cast or hypreutectic in a boosted situation.
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Old 11-23-2010, 07:38 AM
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Incognegro
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Originally Posted by kwkracing
In my opinion the only worse piston to use for that would be a stock one than a kb cast or hypreutectic in a boosted situation.
Thats what everyone is saying. Dont think Im gonna risk it in this motor.
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Old 11-23-2010, 07:45 AM
  #7  
curtisreed
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KB make forged piston also that are very nice and priced pretty good. I have them in my 383.

Curtis
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Old 11-23-2010, 09:59 AM
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Incognegro
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Originally Posted by doorracer
KB make forged piston also that are very nice and priced pretty good. I have them in my 383.

Curtis
Got a part number or link? Also my cam is not optimal,would have to change that too.
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Old 11-23-2010, 03:33 PM
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cncmotorsports
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Originally Posted by Julianthe3rd
Originally Posted by doorracer
KB make forged piston also that are very nice and priced pretty good. I have them in my 383.

Curtis
Got a part number or link? Also my cam is not optimal,would have to change that too.
If you change the pistons, here is a link to a New KB Icon.
They are very nice.

http://www.cnc-motorsports.com/produ...84&CtgID=12783

Agreed, Hyperutetic and boost not a great idea, but it does work if your a good tuner.
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Old 11-23-2010, 04:43 PM
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Incognegro
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Originally Posted by cncmotorsports
Originally Posted by Julianthe3rd
Originally Posted by doorracer
KB make forged piston also that are very nice and priced pretty good. I have them in my 383.

Curtis
Got a part number or link? Also my cam is not optimal,would have to change that too.
If you change the pistons, here is a link to a New KB Icon.
They are very nice.

http://www.cnc-motorsports.com/produ...84&CtgID=12783

Agreed, Hyperutetic and boost not a great idea, but it does work if your a good tuner.

Thats rods and pistons for that price?
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