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Re: Ld 340 flow bench test results
[Re: pittsburghracer]
#1197043
01/15/13 02:53 PM
01/15/13 02:53 PM
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Joined: Jan 2003
Posts: 9,924 Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,924
Weddington, N.C.
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No worries, it's all good!
I should have said "Has ANYBODY....but I know Vic (to name just one) is very experienced with finding potential in that Manifold.
I think a ported Victor should flow well in excess of 300cfm on an ~ equally flowing head, the runners are generous and fairly short which is usually advantageous on long stroke combos or short strokers at High RPM. The only thing it seems to want for is a bit more plenum volume.
I've ported several of them over the years, As cast the runner transitions from the plenum need a fair amount of work but they come around great after 'whittling', I actually opened it up a bit more than with my SDSS Stage 2's. My new heads flow ~310 even with my little 'broomstick' roller, I still think the old Vic 340 will be better overall than the SV in terms of peak power (though maybe not necessarily for peak midrange torque).
Last edited by Streetwize; 01/15/13 03:23 PM.
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Re: Ld 340 flow bench test results
[Re: pittsburghracer]
#1197044
01/15/13 06:26 PM
01/15/13 06:26 PM
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Joined: Jul 2012
Posts: 430 Washington
skrews
mopar
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mopar
Joined: Jul 2012
Posts: 430
Washington
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Quote:
A good Friend of mine asked me if I would check his LD 340 on my flow bench today and I myself was a little curious so I mounted a small block edelbrock to the bench and did a flow test on the head. We then bolted his some what grubby looking intake to the head. This was a used intake that was never touched with a grinder so it was not even gasket matched. Here are the flow numbers.
head head with intake 100 60 62 200 137 130 300 200 187
400 251 224 450 256 239 500 267 247 550 273 249 600 275 254 650 276 255 700 276 255
I always knew that these were good intakes and after doing this test it backs up what we have seen at the track for years. He wants to see the results from Matt's Victor 340 intake and if they are close we will do some gasket matching and touch up work to the LD340. Here are a couple of pictures of his intake so you can see how much better it could be with some work.
What work had been done to the heads at this point ? Be interesting to see how an OOTB RPM or AirGap compares to the LD340. Thanks for sharing.
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Re: Ld 340 flow bench test results
[Re: pittsburghracer]
#1197047
01/15/13 10:15 PM
01/15/13 10:15 PM
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Joined: Jan 2005
Posts: 12,478 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,478
Kalispell Mt.
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the "RPM" and the "RPM air gap" are the same exact runners, just a different floor in the manifold to give the air gap underneath. The LD340 is a step away from the stock intake toward the RPM. The LD340 still makes some pretty sharp corners compared to the RPM but it is better than stock.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Ld 340 flow bench test results
[Re: pittsburghracer]
#1197048
01/15/13 10:33 PM
01/15/13 10:33 PM
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Joined: Oct 2003
Posts: 11,702 W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,702
W. Kentucky
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Quote:
Its really a shame how bad some of this stuff is out of the box.
I bought a used untouched Victor for my 408, it was awful. No way I'd an intake like that without spending a little time on it with a die grinder.
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