Head flow number question. Post your info here.

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Sep 30, 2002 | 11:49 AM

#41

J-Rod

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From: Texas

Re: Head flow number question. Post your info here.

Anybody else out there have some flow sheets?

Sep 30, 2002 | 01:52 PM

#42

verbs

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From: At the office

Re: Head flow number question. Post your info here.

TEA Stg. 2 5.3L heads milled .010

Ferrea 2.02 intake valve, UDI 1.55 exhaust valve

Flowed at TEA

Lift Exh. Int.

.100 72.2 55.0
.200 141.6 105.2
.300 205.6 151.5
.400 254.6 193.4
.500 290.1 231.0
.550 300.4 247.2
.600 306.2 260.4

Exhaust done through a stack pipe.

[ October 01, 2002, 11:03 AM: Message edited by: verbs ]

Oct 1, 2002 | 12:09 AM

#43

jmX

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From: Los Angeles

Re: Head flow number question. Post your info here.

I have flow sheets but unless all those numbers are off the same flow bench I dont think a side by side comparison is valid.

Oct 11, 2002 | 05:14 PM

#44

LS1derfull

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From: new england

Re: Head flow number question. Post your info here.

My recent progress on 5.7 heads goes like this:
Intake: stock 2.00"
.200"=146.25 cfm at 28"
.300"=205
.400"=251
.450"=270
.470"=277
.500"=285
.550"=296
.600"=278.12
Exhaust: stock 1.55"
.200"=107.44cfm at 28"
.300"=145.36
.400"=178.25
.450"=187.55
.500"=195.30
.550"=203.17
.600"=209.47
This flow is with 214cc intake port, and 81cc exh.port, completely stock valve job. <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />

Oct 11, 2002 | 07:22 PM

#45

SStrokerAce

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From: NY

Re: Head flow number question. Post your info here.

<blockquote>quote:<hr />Originally posted by Chris ARE 360:
 <blockquote>quote:<hr />Originally posted by TransAmaniac:
GTP LS1 I/E
.100 65.8/51.0
.200 135.9/103.8
.300 200.8/141.5
.400 244.1/176.2
.500 278.3/190.4
.550 291.5/194.1
.600 285.0/198.3
.650 291.4/202.7

I/E Ratio @ .550=70%
235cc I port<hr /></blockquote>That is a pretty big intake port isnt it? Chris<hr /></blockquote>That is really big for that little flow. 235cc ports and 291cfm? either that's a bad bench or that's **** poor. All hand done too.. Makes you wonder how consistent they are.

I'm with Chris. If that's a Stage II you're looking at $2900 + core.

What stage are those heads?

Not trying to be a ***** but we have heard much better numbers from other porters on here.

Bret

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