Head flow number question. Post your info here.
09-30-2002, 01:52 PM
#42
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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.
<small>[ October 01, 2002, 11:03 AM: Message edited by: verbs ]</small>
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.
<small>[ October 01, 2002, 11:03 AM: Message edited by: verbs ]</small>
10-01-2002, 12:09 AM
#43
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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.
10-11-2002, 05:14 PM
#44
TECH Addict
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" />
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" />
10-11-2002, 07:22 PM
#45
Re: Head flow number question. Post your info here. </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Chris ARE 360:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TransAmaniac:
<strong>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</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That is a pretty big intake port isnt it? Chris</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">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
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TransAmaniac:
<strong>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</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">That is a pretty big intake port isnt it? Chris</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">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
