Re: Best intake for stage vi heads
[Re: smokinwoody]
#369571
07/07/09 11:04 PM
07/07/09 11:04 PM
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Joined: Dec 2008
Posts: 742 Oak Harbor, WA
Wicked49670dart
super stock
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super stock
Joined: Dec 2008
Posts: 742
Oak Harbor, WA
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On my motor 496,Stage VI, Edlebrock Victor, Hughes 272@.050 .619 solid lifter cam, Pro-systems 1000cfm 4150 carb,3400 with me in it, on street tires /mufflers [10.22@128.With a 1.41 60ft.
Last edited by Wicked49670dart; 07/07/09 11:07 PM.
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Re: Best intake for stage vi heads
[Re: 70B5Vert]
#369574
07/08/09 10:38 AM
07/08/09 10:38 AM
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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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OOTB (Out Of The Box), the 4150 Stage VI RB intake does NOT work well. I won't go into details, but will tell you that it took a lot of work by an experienced intake porter to bring the one I had around. HOWEVER... even "fixed", it would still not be the right intake for what you've described, because it has Max Wedged-sized runner entries from the plenum and gives up a lot of torque below the peak as a trade-off for high rpm HP.
The biggest drawback I see to your combination is the limited stall (3500 flash?) converter you listed. If that's the converter you're sticking with, then use something like an MP M1 intake on RB spacers and a cam in the low-to-mid 250s at .050" on 108 LSA to keep the torque up. If you stepped up to something around 5000 stall, you could run something in the mid-260s.
I still like a Holley "950 HP" (not really 950 cfm, though), for a good performing carb on something like this. There are other options, but mine worked pretty well OOTB and didn't require too much tuning from there.
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Re: Best intake for stage vi heads
[Re: Wicked49670dart]
#369577
07/12/09 04:13 AM
07/12/09 04:13 AM
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Joined: Nov 2003
Posts: 2,131 New Lenox IL
cudadon
top fuel
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top fuel
Joined: Nov 2003
Posts: 2,131
New Lenox IL
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Quote:
On a B block you can use a RB intake, no spacer.On your RB Block use a RB intake and you have to use the spacers....Matt
The spacers end up giving you a compound entry angle that is not conducive to good flow OOTB either! If you look at the angle that the floor of the head meets the floor of the spacer you will see what I mean. Plus it will leave stains that appear to me is caused by liquid fuel dropping out of the fast flow when it hits that "ramp" I used the Stage VI/ M1 intake which I know worked well on the dyno. It does have some porting done to it, clean up and match porting. Don
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