Re: 470 dry sump engine on the dyno
[Re: AndyF]
#2278295
03/29/17 01:13 PM
03/29/17 01:13 PM
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Joined: Jan 2003
Posts: 13,496 Marion, South Carolina [><]
an8sec70cuda
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So you won't be giving anyone a real world test to go by. I'd bet 99% of people reading about this test will use an out of the box intake if they were to use these heads.
Small heads w/ an expensive great flowing intake versus big heads w/ a crappy flowing intake. I'd like to see how much the bigger heads are worth over the smaller ones w/o having to make an assumption about the difference the intakes make.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 470 dry sump engine on the dyno
[Re: justinp61]
#2278312
03/29/17 02:13 PM
03/29/17 02:13 PM
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Joined: Jan 2003
Posts: 13,496 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
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Apples to oranges IMO. Realistically all you are doing is testing two engine combinations, no compairisons.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 470 dry sump engine on the dyno
[Re: an8sec70cuda]
#2278337
03/29/17 02:41 PM
03/29/17 02:41 PM
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Joined: Aug 2003
Posts: 1,578
KOS
pro stock
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pro stock
Joined: Aug 2003
Posts: 1,578
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So you won't be giving anyone a real world test to go by. I'd bet 99% of people reading about this test will use an out of the box intake if they were to use these heads.
Small heads w/ an expensive great flowing intake versus big heads w/ a crappy flowing intake. I'd like to see how much the bigger heads are worth over the smaller ones w/o having to make an assumption about the difference the intakes make. 100% correct....whether its down on power or not your going to give it a fair comparison.the only way to do it is same manifold on both.
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Re: 470 dry sump engine on the dyno
[Re: AndyF]
#2278365
03/29/17 03:38 PM
03/29/17 03:38 PM
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Joined: Jan 2003
Posts: 10,088 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Why not look at how each head works compared to the other, running the intake that most people would run for that port size? It doesn't make sense to me to do it any other way. The one thing I would do would be a port match, so each head/manifold COMBO is getting a fair shake on the dyno, and would be very representative of the way each head will be used.
Last edited by gregsdart; 03/29/17 03:40 PM.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 470 dry sump engine on the dyno
[Re: RustyM]
#2278381
03/29/17 04:01 PM
03/29/17 04:01 PM
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Joined: Jan 2003
Posts: 13,496 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
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I bet you could buy 2 new Trick Flow manifolds for less than just the port work on that one MP manifold from Wilson cost.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 470 dry sump engine on the dyno
[Re: 70VcodeCoronetRT]
#2278385
03/29/17 04:05 PM
03/29/17 04:05 PM
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Joined: Jan 2003
Posts: 31,203 Oregon
AndyF
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Andy, did you just have Wilson do their Competition porting on your M1? I'm looking at getting a 4150 version done. Thanks Yes it was the competition porting package. They added a lot of weld material on the outside of the runners in order to open them up to where they needed to be for a 470 inch engine.
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Re: 470 dry sump engine on the dyno
[Re: RustyM]
#2278390
03/29/17 04:12 PM
03/29/17 04:12 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
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Val-haul-ass... eventually
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I have to wonder what the costs are in having intakes for both heads models and those port matched for each, not to mention dyno time.
I'll take a w.a.g. at about $1500 for what you described, including some (not all) of the dyno expenses.
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Re: 470 dry sump engine on the dyno
[Re: AndyF]
#2278410
03/29/17 05:11 PM
03/29/17 05:11 PM
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Joined: Aug 2011
Posts: 2,905 Pattison Texas
CSK
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Andy ,Not wanting to hijack,but what is wrong with the Indy 400-3,400-2 ?
Thanks Charlie
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: 470 dry sump engine on the dyno
[Re: CSK]
#2278476
03/29/17 07:19 PM
03/29/17 07:19 PM
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Joined: Jan 2003
Posts: 5,487 SoCal
Brian Hafliger
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SoCal
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We'll have our 270 heads soon...hope we don't go outside the usable rpm range of the hyd. roller cam with them.
Andy are you going to try the edelbrock Victor MW intake on the 270 heads?
Brian Hafliger
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Re: 470 dry sump engine on the dyno
[Re: Brian Hafliger]
#2278504
03/29/17 08:48 PM
03/29/17 08:48 PM
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Posts: 31,203 Oregon
AndyF
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We'll have our 270 heads soon...hope we don't go outside the usable rpm range of the hyd. roller cam with them.
Andy are you going to try the edelbrock Victor MW intake on the 270 heads? I'm on a low deck so my Wilson prepped Super Victor will not fit. If that intake would fit then it is the one I'd use. (although the ports in that intake are larger than the small window ports that TF put in the 270 head)
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Re: 470 dry sump engine on the dyno
[Re: CSK]
#2278507
03/29/17 08:55 PM
03/29/17 08:55 PM
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Joined: Jan 2003
Posts: 31,203 Oregon
AndyF
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Andy ,Not wanting to hijack,but what is wrong with the Indy 400-3,400-2 ?
Thanks Charlie Just depends on your point of view. The average bracket guy can bolt it on and run just fine but if you're trying to squeeze power out of an engine they leave a lot to be desired. The port size is small, the plenum is poorly cast, etc. If you ever have the chance to compare an Indy intake casting next to a Trick Flow casting you'll see that Indy doesn't really put much effort into their pattern making. The plenum on my 440-3 is really sloppy. The cloverleaf pattern is uneven and the casting quality is kind of poor. On a high horsepower engine that uneven pattern is going to mess up the fuel distribution between cylinders. If you compare a raw Indy casting to an intake that Wilson has prepped you'll see a world of difference.
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Re: 470 dry sump engine on the dyno
[Re: AndyF]
#2278525
03/29/17 09:33 PM
03/29/17 09:33 PM
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Joined: Aug 2011
Posts: 2,905 Pattison Texas
CSK
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Andy ,Not wanting to hijack,but what is wrong with the Indy 400-3,400-2 ?
Thanks Charlie Just depends on your point of view. The average bracket guy can bolt it on and run just fine but if you're trying to squeeze power out of an engine they leave a lot to be desired. The port size is small, the plenum is poorly cast, etc. If you ever have the chance to compare an Indy intake casting next to a Trick Flow casting you'll see that Indy doesn't really put much effort into their pattern making. The plenum on my 440-3 is really sloppy. The cloverleaf pattern is uneven and the casting quality is kind of poor. On a high horsepower engine that uneven pattern is going to mess up the fuel distribution between cylinders. If you compare a raw Indy casting to an intake that Wilson has prepped you'll see a world of difference. Thanks Andy, not much choice on the low deck max wedge, when I got mine had to open up the ports to MW, & clean up the plenum, but mine is mostly a street car. Thanks again.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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