SR 295 CNC FLOW RESULTS
#498095
10/15/09 05:07 PM
10/15/09 05:07 PM
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Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
Old School
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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i had my sr,s flowed today. i had them checked because my 572-13,s did not flow as advertised. i bought theese from indy.
indy says they flow:
.200 I 162 E 121
.300 216 166
.400 274 205
.500 324 239
.600 351 260
.700 355 263
my shop had them flowed:
.100 I 77.6 E 61.6
.200 150.7 116.8
.300 213.5 154.2
.400 274.5 185
.500 320 211.3
.600 350 230.5
.700 367 244.8
.800 365 254.3
theese were with a 6"x2" pipe and radiused clay on the intake port.
the intakes were very close,the exhaust down about 10 cfm.i was suprised because my 572-13,s were way off.they only flowed 388 @.800.down about 15-20 cfm from advertised.
so i guess 295 cc runners with 15*valve angle flow within 20 cfm of 365 cc with 13* valve angle,and ALOT more $$$. i would say the sr,s are a good deal.....
Last edited by Old School; 10/15/09 06:11 PM.
68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
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Re: SR 295 CNC FLOW RESULTS
[Re: Old School]
#498096
10/15/09 06:00 PM
10/15/09 06:00 PM
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Joined: Feb 2006
Posts: 698
Alberta Canada
Edge
mopar
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mopar
Joined: Feb 2006
Posts: 698
Alberta Canada
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I just sold a set of good flowing Indy SR heads that flowed similar to the numbers you posted.
My understanding is that the measured flow is only one part of the equation it has been explained to me that the limitation of the SR's is a limited cross sectional area to the port. Following this logic it is possible that 365 cfm flow from an SR may not equal the same power potential as 365 CFM flowing 572 head on a big cubic inch engine ? Basically while high port velocity is desirable , too mcuh of a good thing can be bad.
However low rpm performance would be much better with the SR due to the higher velocity.
Feel free to correct me if yousee things differently.
By no means do I profess to be an expert, only a student.
I do agree the SR's are a good deal.
76 Duster
work in progress
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Re: SR 295 CNC FLOW RESULTS
[Re: Old School]
#498098
10/15/09 09:27 PM
10/15/09 09:27 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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I suscribe to that theory as well and I also think the SR head is still the best bang for the buck overall for BB Mopars.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: SR 295 CNC FLOW RESULTS
[Re: dodgeboy11]
#498100
10/15/09 11:54 PM
10/15/09 11:54 PM
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Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
Old School
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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if you are talking about the flow bench,they tested both heads with a 4.5" bore fixture.
68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
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Re: SR 295 CNC FLOW RESULTS
[Re: Old School]
#498102
10/16/09 12:52 PM
10/16/09 12:52 PM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
if you are talking about the flow bench,they tested both heads with a 4.5" bore fixture.
Is that the bore size they'll actually be used on?
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Re: SR 295 CNC FLOW RESULTS
[Re: B1Fish540]
#498103
10/16/09 12:56 PM
10/16/09 12:56 PM
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Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
Old School
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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Quote:
Those are good numbers, just wondering what their CNC 440-1s would flow on the same bench. 
the only reason i checked them,was because my 572-13,s did not flow what they should have. both heads were flow checked on the same bench.the sr,s got real close to what indy says they should flow.but not the 572-13,s.they were down 15-20 cfm.
68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
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