Re: EMC 2013 470 B stroker build
[Re: BradH]
#1518928
10/17/13 02:30 PM
10/17/13 02:30 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
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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More questions: 1. What did the final volume of the chambers come out to? 2. How large was the dish in the pistons? 3. Can both the Procomp and Edelbrock Victor intake seats support a 2.25" intake valve? That's all for now...
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Re: EMC 2013 470 B stroker build
[Re: RAMM]
#1518929
10/17/13 02:39 PM
10/17/13 02:39 PM
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Joined: Feb 2006
Posts: 1,057 The Great White North
RAMM
OP
super stock
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OP
super stock
Joined: Feb 2006
Posts: 1,057
The Great White North
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Here's a full pull with severe lifter instability. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: EMC 2013 470 B stroker build
[Re: RAMM]
#1518931
10/17/13 02:43 PM
10/17/13 02:43 PM
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Joined: Feb 2006
Posts: 1,057 The Great White North
RAMM
OP
super stock
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OP
super stock
Joined: Feb 2006
Posts: 1,057
The Great White North
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Here's a full pull with "better" valve control. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: EMC 2013 470 B stroker build
[Re: RAMM]
#1518937
10/17/13 04:25 PM
10/17/13 04:25 PM
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Joined: Feb 2006
Posts: 1,057 The Great White North
RAMM
OP
super stock
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OP
super stock
Joined: Feb 2006
Posts: 1,057
The Great White North
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This chart represents the very best port of all eight. The rest are down 3-6 cfm from this one at all points above .200" The exhaust flowed 250 cfm through the header. J.Rob
2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3
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Re: EMC 2013 470 B stroker build
[Re: B3RE]
#1518941
10/17/13 06:12 PM
10/17/13 06:12 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
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
... but if Mopar guys dont abandon the misinformation about valvetrain geometry, they will never be able to compete at the same level as the competition.
Please to elaborate, honorable B3RE-san.
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Re: EMC 2013 470 B stroker build
[Re: pittsburghracer]
#1518942
10/17/13 06:13 PM
10/17/13 06:13 PM
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Joined: Apr 2009
Posts: 3,433 Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,433
Toronto
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Quote:
Quote:
J. Rob nice work dude! Can see your extraordinary attention to detail leaving nothing spared
What did you think of those pro comp heads in terms of material quality when you ported on them as well as the casting quality i.e. how well bolt holes and such lined up, rocker shaft mounts level and not warped, etc.
If they are anything like the Chevy Pro comp heads I just did the aluminum is VERY hard.
Thats a good thing right? I have heard before that soft aluminum that cuts like better is not as good in terms of casting quality...but im not a head porter nor a metal guy, so I have no idea if thats true or not
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Re: EMC 2013 470 B stroker build
[Re: mshred]
#1518943
10/17/13 06:22 PM
10/17/13 06:22 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
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
What did you think of those pro comp heads in terms of material quality when you ported on them as well as the casting quality i.e. how well bolt holes and such lined up, rocker shaft mounts level and not warped, etc.
If Jesse's were anything like my "porting dummy" BB head, the area under the exhaust valve seats don't have sufficient material to make a smooth transition into the bowls.
I don't know how poor the OOB valve job is because I had Brian at IMM put a "real" valve job on mine before I ever saw it. However, there is still a big "bowl hog" like cut under the intake valve insert that simply didn't need to be cut that deeply.
The short turns have a lot bigger "ledge" than the Edelbrock they copied which just adds to the porting time necessary to bring them around.
I know you're fishing for validation that buying Procomps is a good deal, but IMO they're perfect examples of how offshore "clone" products cut corners.
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Re: EMC 2013 470 B stroker build
[Re: BradH]
#1518945
10/17/13 06:56 PM
10/17/13 06:56 PM
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Joined: Apr 2009
Posts: 3,433 Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,433
Toronto
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Quote:
Quote:
What did you think of those pro comp heads in terms of material quality when you ported on them as well as the casting quality i.e. how well bolt holes and such lined up, rocker shaft mounts level and not warped, etc.
If Jesse's were anything like my "porting dummy" BB head, the area under the exhaust valve seats don't have sufficient material to make a smooth transition into the bowls.
I don't know how poor the OOB valve job is because I had Brian at IMM put a "real" valve job on mine before I ever saw it. However, there is still a big "bowl hog" like cut under the intake valve insert that simply didn't need to be cut that deeply.
The short turns have a lot bigger "ledge" than the Edelbrock they copied which just adds to the porting time necessary to bring them around.
I know you're fishing for validation that buying Procomps is a good deal, but IMO they're perfect examples of how offshore "clone" products cut corners.
The small block pro comp castings are supposed to be different then standard eddy's in that the water ports were moved in order to be able to port them and not hit water....otherwise, I think there is no real appeal to them...besides, im just asking, aint no harm in that lol
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