Who wants to play
#171
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I had a crane 139021 that is pretty close to the 741 with in 2*. I pulled it out and put in a .663-.655 lift 245-250 on 112ls. This is a 540 9.7comp. afr 315 heads with a 1050 dominator. Picked up 225 rpm"s. That"s real world on the water results.
#174
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I have Desktop Dyno software and on it shows that the Cam Motion would make less power than the Crane 741. Actually the Crane 139731 showed more power than the other two. On paper. The Crane 139731 was the cam I started with.
#175
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Thread Starter
The cam you have, is probably more along the lines of what i would choose for a 540. Even though my dyno software shows the 741 to do fairly well , i wouldnt use that cam in real life in that build. At least not one looking to turn 6000rpm, and make more than 650hp
Last edited by MILD THUNDER; 12-19-2016 at 07:16 AM.
#177
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Tks
I didn't think it was a shelf cam or I would have seen it at some point. Where do you figure your at hp wise based on your boat/speed/prop/rpm etc? As mentioned I'm building a couple of similar engines and would like to try a couple different cams on dyno. I've got one solid and would like try one hyd. The hyd you mentioned is near exactly what I'm looking for. Will give them a call.
I didn't think it was a shelf cam or I would have seen it at some point. Where do you figure your at hp wise based on your boat/speed/prop/rpm etc? As mentioned I'm building a couple of similar engines and would like to try a couple different cams on dyno. I've got one solid and would like try one hyd. The hyd you mentioned is near exactly what I'm looking for. Will give them a call.
#178
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I would guess the HP around 690 at least that's what the program say's. The cam # xh-246-390-250-385-12. Core3300069. I just should have had the compression ratio up to around 10.5.
#179
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Per my flow numbers and parts I have, these are the choices, one of them is Joe's grind, the others are other companies, I am not attaching names of who's is what to keep that part private.
[ATTACH=CONFIG]563489[/ATTACH]
[ATTACH=CONFIG]563489[/ATTACH]
#180
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for me no 680 lift hyd roller,650 is my limit but what do i know!