show me some flow #'s

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barracuda man

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need some #'s on some 340 heads w2/x340/edelbrock/340j need to know whats best @550 lift.
 
W-2 head flows stock iron with 2.08/1.60
These heads were flowed at Engine Systems in Tucker, Ga. in the mid 80's.

Int./Exh.

.200 104/91
.300 157/133
.400 206/153
.500 247/172
.600 241/182
.700 235/185


Mild ported W-2 with 2.08/1.60


.200 131/109
.300 187/140
.400 238/166
.500 270/188
.600 264/191
.700 264/197

W-2 fully ported with 2.08/1.60

.200 168/152
.300 223/198
.400 265/224
.500 284/238
.600 270/243
.700 270/253

915 J head stock with 1.88/1.60 These heads were flowed on My Superflow bench within the last year.

.100 80/79
.200 132/119
.300 199/141
.400 213/149
.500 220/ 153
.600 219/155
.700 220/155

Ported J 915 with 1.88/1.60

.100 96/89
.200 185/133
.300 229/181
.400 248/196
.500 283/201
.600 285/206
.700 281/207


340 X head ported by someone else 2.02/1.60

.100 90/80
.200 169/123
.300 212/152
.400 242/193
.500 254/198
.600 261/201
.700 263/201

Edlebrock Aluminum head with 2.02/1.60

int./exh.

.100 69/64
.200 129/108
.300 188/142
.400 232/171
.500 249/183
.600 251/190
 
BJR Racing said:
W-2 head flows stock iron with 2.08/1.60
These heads were flowed at Engine Systems in Tucker, Ga. in the mid 80's.

Mild ported W-2 with 2.08/1.60

.200 131/109
.300 187/140
.400 238/166
.500 270/188
.600 264/191
.700 264/197

W-2 fully ported with 2.08/1.60

.200 168/152
.300 223/198
.400 265/224
.500 284/238
.600 270/243
.700 270/253


Ported J 915 with 1.88/1.60

.100 96/89
.200 185/133
.300 229/181
.400 248/196
.500 283/201
.600 285/206
.700 281/207
Click to expand...

BJR,

Those are really impressive low lift numbers! I'm super impressed by the small valve J head, that is just phenomenal! Are those stock valves or are they tulip SS? How long have you been porting heads? What equipment do you use to do the valve job? Serdi? How many angles on the intake? Are they super narrow, race only seat widths? Have the valves themselves been modified in any way?

Can you PM me with a price list? I just can't find anyone around me that I trust to do head work as they won't or can't back up thier claims with numbers. Well, there was one guy, Dave Capriotti, but he got a contract from a Busch series racer and can only work on his engines exclusivley now. :sad1: Do you only do mopar heads?
 
Ramcharger,
They are stainless steel valves.
I've been porting heads since the mid 70's. I use serdi cutters that I had special made by serdi so there really aren't any angles as it's a large radius, then I use another serdi cutter to remove some of the radius in the bowl area. The seats are very narrow race only type. As for the valves being modified it really depends on what the head is going on and where the flow has to be had, as I build each head for the camshaft used. It would be crazy to build a all out race head and then only use a .450 lift cam and the flow wouldn't be at it's best where the cam works, so you don't need peak flow at .600 lift when you only go to .450. what modifications that work for a low lift cam most likely wont work for a high lift cam as there's too may trade off's.
As for doing only mopars I would starve, as there's more ford and chevy guys around here, not to mention the ricers and motorcycles.
 
BJR Racing said:
Ramcharger,
It would be crazy to build a all out race head and then only use a .450 lift cam and the flow wouldn't be at it's best where the cam works, so you don't need peak flow at .600 lift when you only go to .450.
Click to expand...

Agreed 100%! Although with the flow on that J head, I'd call Comp or Crane and have them make me a cam that matches the head! :headbang:
 
have any flow #s on the 915 J's with mild port work.2.02/1.60 I have 2 sets of them.
 
Heres the "J" head mildly ported, with a 2.02/1.60 it's gasket matched and machine cut bowls and valve job 160 cc's intake runner.

int./exh.

.100 92/78
.200 177/119
.300 221/146
.400 240/180
.500 242/186
 
hi, are these flow numbers at a corrected flow or raw? what test pressures?
I know that higher test pressures give higher flow rates!
 
J-heads
FLOW #’s

LIFT------ASCAST---------PORTED
.100”----62.1/46.6---------62.1/51.8
.200”----112.1/99.4-------135.2/103.5
.300”----156.6/128.3-----198.7/135.2
.400”----193.2/137.3-----239.8/158.7
.450”----200.1/138.3-----253.9/169.7
.500”----200.1/139.7-----258.4/182.9
.550”----200.1/140.8-----264.9/186.3
.600”----200.8/141.5-----254.6/186.3
All #’s at 28” of Water
2.02”/1.60” MP Stainless valves


W-2
FLOW #’s

LIFT--------AS-CAST---------PORTED
.100”------62.1/44.9------------82.8/55.2
.200”------124.9/101.8---------148.4/107.6
.300”------179.4/138.0---------205.3/160.4
.400”------220.8/151.1---------255.3/193.2
.450”------238.7/155.2---------273.3/203.6
.500”------252.2/155.2---------291.5/208.7
.550”------258.4/155.2---------303.9/213.9
.600”------260.5/155.2---------313.3/215.0
.650”------253.6/155.2---------324.3/215.7
.700”------253.6/155.2---------320.8/217.0

All #’s at 28” of water
No flow tube on the exhaust
2.02”/1.60” Ferrea 6000 Series Valves
30 Degree Back Cut On intake valves.


EDDY head
STAGE 4 PORT WORK

LIFT------IN/EX
.100"----76.0/N/A
.200"--147.0/112.1
.300"--206.7/163.9
.400"--255.3/193.2
.450"--274.3/203.6
.500"--279.0/212.2
.550"--285.0/218.0
.600"--293.2/226.3
.650"--293.2/229.4
.700"--293.2/230.8

All #'s at 28" of H20.
Ported head was flowed with 2.05" FERREA valve with 30 degree back cut on intake valve, and no flow tube on exhaust.
 
intresting to se a edelbrock head outflowing a W2 on the exhaustport always thought that the W2 exhaust port should be lots better than the edelbrock...
 
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