Re: 514 on the dyno
[Re: krautrock]
#2301101
05/08/17 12:26 PM
05/08/17 12:26 PM
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Joined: Jan 2003
Posts: 31,200 Oregon
AndyF
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is that cylinder PSI written on your valve cover and if so, does cylinder 5 say 150psi? Yep, that cylinder had a small hole in the chamber which had to be welded up.
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Re: 514 on the dyno
[Re: AndyF]
#2301455
05/08/17 11:38 PM
05/08/17 11:38 PM
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Joined: Jan 2003
Posts: 1,361 Wild West
M_D
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,361
Wild West
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Did you get your batch of trigger wheels done, or do you just have a single prototype?
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Re: 514 on the dyno
[Re: M_D]
#2301464
05/08/17 11:42 PM
05/08/17 11:42 PM
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Posts: 31,200 Oregon
AndyF
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Did you get your batch of trigger wheels done, or do you just have a single prototype? Still waiting for the shop to finish them up. As soon as I get one out of the shop I'll mail it to you. Should be any day now, shop promised them to me a while back.......
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Re: 514 on the dyno
[Re: davenc]
#2301466
05/08/17 11:44 PM
05/08/17 11:44 PM
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Posts: 31,200 Oregon
AndyF
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Are the throttle bores spaced/aligned like a 4150? I don't think so but I'd have to measure to be sure. The 4150 is not a square pattern and this appears to be square. Also, these are 2.200 inch bores so they are much bigger than any 4150 bores. As far as I can tell this is a totally unique bore pattern that does not fit any existing gasket or spacer on the market.
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Re: 514 on the dyno
[Re: AndyF]
#2301722
05/09/17 01:23 PM
05/09/17 01:23 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
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I Live Here
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State of confusion
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Looks similar to the BLP Extreme Billet base plate............they bring em in a bit to fit a 4150 but you still need a 1/2 open spacer to clear the big 2" butterfly's.............
Last edited by Thumperdart; 05/09/17 01:31 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: 514 on the dyno
[Re: AndyF]
#2305395
05/16/17 10:35 AM
05/16/17 10:35 AM
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Joined: Jan 2003
Posts: 8,079 Tulsa OK
Bad340fish
master
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master
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Tulsa OK
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Awesome, keep us updated. I wouldn't be surprised to see the carb take the peak HP but it would be interesting to lay the curves over each other if possible.
68 Barracuda Formula S 340
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Re: 514 on the dyno
[Re: AndyF]
#2306574
05/18/17 10:29 AM
05/18/17 10:29 AM
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Joined: Jan 2003
Posts: 10,081 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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I Live Here
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Any plans for tests to be done on how fine or course the fuel atomization needs to be for this combination? I have to wonder if that might be part of the power loss?
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 514 on the dyno
[Re: AndyF]
#2306658
05/18/17 12:51 PM
05/18/17 12:51 PM
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Posts: 31,200 Oregon
AndyF
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We ended up finding the power. Just had to lean it out a little bit and add a little bit of timing. Only took a few minutes with EFI. Rich just sat at the laptop in the control room and loaded a new fuel table and the engine picked up. Then he changed the timing and the power picked up some more. We took a look at the plugs and they were fine. Looked like we could've added another degree of timing had we wanted but we left it nice and safe. The engine makes right at 900 hp with this tune. It is very efficient, the BSFC is right at 0.40, AFR is 13.0 and timing was 35 degrees. We made a bunch of pulls and only had a few tiny specks of trash in the filter so everything seems to be running just fine. I pulled the engine off the dyno and have it back in my shop so I can covert it over to CnP then we'll be back on the dyno again in a month or two. https://www.youtube.com/watch?v=LZcFl7fy6FI
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Re: 514 on the dyno
[Re: gregsdart]
#2306660
05/18/17 12:54 PM
05/18/17 12:54 PM
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Joined: Jan 2003
Posts: 31,200 Oregon
AndyF
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Any plans for tests to be done on how fine or course the fuel atomization needs to be for this combination? I have to wonder if that might be part of the power loss? I do not have any control over that. The injectors are what they are and the injector location is what it is. I don't have the time or money to mess with that kind of stuff. The Pro Stock boys test dozens of intake manifolds with different injector locations but that is super big bucks. Way out of my league.
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Re: 514 on the dyno
[Re: AndyF]
#2306698
05/18/17 01:33 PM
05/18/17 01:33 PM
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Joined: Jan 2003
Posts: 10,081 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
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Frostbitefalls MN (Rocky&Bullw...
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Any plans for tests to be done on how fine or course the fuel atomization needs to be for this combination? I have to wonder if that might be part of the power loss? I do not have any control over that. The injectors are what they are and the injector location is what it is. I don't have the time or money to mess with that kind of stuff. The Pro Stock boys test dozens of intake manifolds with different injector locations but that is super big bucks. Way out of my league. Understandable. I am surprised the various fuel injection companys haven't offered options and guidance, I doubt one injector design covers both street and race requirements for best performance.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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