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Bell Intercoolers

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Old Dec 15, 2014 | 06:00 PM
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Default Bell Intercoolers

I was just about to purchase a Bell horizontal 24x12x4.5 intercooler to replace my CXracing 4" intercooler but they list it at only flowing 729cfm. For the price I thought it would flow a lot more than that. From the flow numbers it doesn't seem worth the cost to change my CX unit. I may look into a vertical flow unit but really did not want to change out my piping. Does anyone feel that it would be worth changing.

Last edited by Monte4ever; Dec 15, 2014 at 06:38 PM.
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Old Dec 15, 2014 | 10:01 PM
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Mine worked GREAT!!!!! Made 1000hp with it, temps get awesome
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Old Dec 16, 2014 | 01:43 AM
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I think I miss understood their CFM ratings. I believe it's 1 psi drop per 729 cfm. In that case this intercooler is exactly what I'm looking for cause at my power level I shouldn't lose no more that 1.5-2 psi.
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Old Dec 16, 2014 | 01:45 AM
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Originally Posted by LASTLS1
Mine worked GREAT!!!!! Made 1000hp with it, temps get awesome
You're using a Bell horizontal 24x12x4.5 core?
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Old Dec 16, 2014 | 08:43 PM
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Straight from Bell Intercoolers is that there is only 1 psi drop per 10 psi of boost. So I should be looking at a 1.5 psi drop or less. They are VERY expensive though when you have them build you one. I almost said f@#! that lol. I see why people stick to the eBay cooler.
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Old Dec 16, 2014 | 08:56 PM
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Originally Posted by Monte4ever
You're using a Bell horizontal 24x12x4.5 core?
Not now when I ran a air to air street driven. Ran 8.2's. Worked great!
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Old Dec 16, 2014 | 09:50 PM
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Originally Posted by LASTLS1
Not now when I ran a air to air street driven. Ran 8.2's. Worked great!
That's good to hear.
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Old Dec 17, 2014 | 09:41 AM
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You will never be over 729cfm through core as it is
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Old Dec 19, 2014 | 09:43 AM
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Originally Posted by rotary1307cc
You will never be over 729cfm through core as it is
At 15psi ????
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Old Dec 19, 2014 | 11:36 AM
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How big of motor and rpm?

Motor is a positive displacement pump. flow volume (cfm) doesn't change entering the engine aside from changes in VE

It is the density ratio that is changing from boost to Na

Take a 370 at 6500rpm and 85% VE. Motor will consume ~600cfm through the throttle body

Now take same situation at 15psi manifold pressure. Motor is still consuming same 600cfm through throttle body. It is just at twice the density

1200cfm entering the turbo..... Still only 600cfm through the ic and throttle body
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Old Dec 19, 2014 | 02:40 PM
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What did Bell give you for a price? I have been looking at the same size unit, chiseled is around $1000 and treadstone is around $400

Ryan
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Old Dec 19, 2014 | 03:30 PM
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Originally Posted by rotary1307cc
How big of motor and rpm? Motor is a positive displacement pump. flow volume (cfm) doesn't change entering the engine aside from changes in VE It is the density ratio that is changing from boost to Na Take a 370 at 6500rpm and 85% VE. Motor will consume ~600cfm through the throttle body Now take same situation at 15psi manifold pressure. Motor is still consuming same 600cfm through throttle body. It is just at twice the density 1200cfm entering the turbo..... Still only 600cfm through the ic and throttle body
Great explanation. I knew I was condensing the air but figured it was actually flowing more CFM than its N/A counterpart.
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Old Dec 20, 2014 | 11:10 AM
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Originally Posted by rotary1307cc
How big of motor and rpm?

Motor is a positive displacement pump. flow volume (cfm) doesn't change entering the engine aside from changes in VE

It is the density ratio that is changing from boost to Na

Take a 370 at 6500rpm and 85% VE. Motor will consume ~600cfm through the throttle body

Now take same situation at 15psi manifold pressure. Motor is still consuming same 600cfm through throttle body. It is just at twice the density

1200cfm entering the turbo..... Still only 600cfm through the ic and throttle body
The motor C I is 403 with a max RPM of 65-6600.

Originally Posted by 25thhawk
What did Bell give you for a price? I have been looking at the same size unit, chiseled is around $1000 and treadstone is around $400 Ryan
$1250 with shipping and my end tank design.
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Old Dec 20, 2014 | 01:46 PM
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I just found a Garret 24x12x4.5 core for $450 and some weld on end tanks for $135 and it looks like they will fit my application. The core is rated at 950hp. If i could find someone here in MI to weld it up I would save possibly $550 with added labor cost. How does Garret compare to Bell?

Last edited by Monte4ever; Dec 20, 2014 at 02:19 PM.
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