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Tractorsport Flowbench Forum Archive • View topic - 351 Cleveland?

351 Cleveland?

Share whatca have found? Brainstorming? Only open to members

Postby jfholm » Mon Jun 29, 2009 10:09 pm

Eric,
So you are running NHRA Nostalgic Junior Fuel? I just looked up the rules in one of the first release rule books. That really looks like a fun class.

How fast are they going?

John
It is a wise man that learns from his mistakes, but it is a wiser man that learns from the mistakes of others.
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Postby emarsh » Mon Jun 29, 2009 10:24 pm

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Postby jfholm » Tue Jun 30, 2009 1:05 am

Eric,
Nice pictures! Thanks. That sounds like a nice association.

John
It is a wise man that learns from his mistakes, but it is a wiser man that learns from the mistakes of others.
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Postby emarsh » Wed Jul 01, 2009 12:56 pm

emarsh
 
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Postby stevenford » Thu Jul 23, 2009 8:56 am

Flow STD on a notched 4" bore 2.190" 1.71" closed small chamber
Last figures are Flow HP, ie 66, 126 etc
Flow @28" 2nd last column, ie 32.2, 61.4 etc

LIFT TP ORR %FLOW LTEMP HTEMP RNG CFLOW HP
0.050 10 12 66.5 68 82 29 32.2 66
0.100 10 13 90.5 76 86 40 61.4 126
0.200 10 134 88.0 76 91 84 125.7 258
0.300 10 1235 80.0 77 94 140 190.6 392
0.400 10 12345 75.0 77 96 185 236.0 485
0.500 10 12345 84.5 77 95 185 266.2 547
0.600 9 12345 89.5 77 96 185 297.0 611
0.700 8 12345 89.5 77 95 185 315.3 648
0.800 8 12345 93.0 78 95 185 327.9 674
0.900 8 12345 94.0 78 94 185 331.7 682
1.000 7 12345 89.5 78 95 185 337.3 693

EXH'T 06 TITLE T STD
LIFT TP ORR %FLOW LTEMP HTEMP RNG CFLOW %
0.050 10 2 77.5 60 63 18 24.3 75
0.100 10 13 76.0 64 63 40 53.0 86
0.200 10 123 94.0 75 63 59 97.5 78
0.300 10 134 96.5 81 63 84 143.2 75
0.400 10 1234 92.5 84 63 105 172.0 73
0.500 10 1234 96.5 86 63 105 179.7 68
0.600 10 1235 75.0 85 63 140 186.1 63
0.700 10 1235 76.5 84 63 140 189.7 60
0.800 10 1235 78.5 86 64 140 194.8 59
0.900 10 0 0.0 0
1.000 10 0 0.0 0
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Postby stevenford » Thu Jul 23, 2009 9:09 am

Ported INT
EXH high port plate
Last figures are Flow HP, ie 64, 123 etc
Flow @28" 2nd last column, ie 31.3, 59.6 etc

LIFT TP ORR %FLOW LTEMP HTEMP RNG CFLOW HP
0.050 10 12 66.5 68 82 29 31.3 64
0.100 10 13 89.5 77 91 40 59.6 123
0.200 10 134 91.5 78 98 84 129.4 266
0.300 10 1235 85.0 79 101 140 201.0 413
0.400 10 12345 77.0 79 100 185 241.1 496
0.500 9 12345 82.0 79 99 185 271.0 557
0.600 8 12345 85.5 79 98 185 300.0 617
0.700 8 12345 91.0 79 97 185 319.6 657
0.800 7 12345 87.0 79 96 185 326.9 672
0.900 7 12345 89.0 79 96 185 334.4 688
1.000 7 12345 90.5 79 96 185 340.1 699


LIFT TP ORR %FLOW LTEMP HTEMP RNG CFLOW
0.050 10 2 77.5 84 78 18 24.4
0.100 10 13 75.0 88 78 40 52.7
0.200 10 123 96.5 95 78 59 100.5
0.300 10 1234 84.5 102 78 105 157.5
0.400 10 1235 75.0 104 78 140 186.6
0.500 10 1235 79.5 104 78 140 197.8
0.600 10 1235 90.0 105 78 140 224.1
0.700 10 1235 97.0 104 78 140 241.4
0.800 10 12345 77.0 104 78 185 253.2
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Postby emarsh » Thu Jul 23, 2009 9:24 am

Thanks for the numbers. How much work with the grinder did it take to achieve them? If I recall they would be about 50 cfm more than stock on the intake?
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Postby stevenford » Thu Jul 23, 2009 9:47 am

The STD figures ar one post back
I couldn't find much on the INT, the castings are thin and it's best not to push it.
The EXH can gain a lot with the plate but it's a lot of work to get it to work. Most plates give modest gains and need a lot of reworking and even then it's in the high lift area. I have seen some plates flow less than a ported STD port

That INLET is filled, it's 3"sq

We did a modest 400C that made 585hp @ 6500, about 2.8"sq
Those figures are for a faster one

I don't know if it was worth it as are over 100 hours spent on those heads, could of bought some better ones instead

I think the faster cars use a smaller valve than the 2.190" (inserts added)
Over here I heard they are making close to 700hp with no filling(against the rules) but turning 9000rpm
Try searching Speedtalk
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