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Re: 440 problem
[Re: firefighter3931]
#328600
05/26/09 11:56 AM
05/26/09 11:56 AM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
OP
Not enough dumb comments...yet
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OP
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
The rocker ratio could be affecting the valvetrain stability with those agressive lobes. Is he running a 1.6 rocker ratio by chance ? 
Dulcich did a series of tests a few years back using an agressive flat tappet hyd cam with a 1.6 rocker and the engine wouldn't RPM.
Dwayne @ PRH has observed the same thing during dyno testing....agressive flat tappet hyd cams and 1.6 rocker ratios nose over early ; usually several hundred rpm lower than with a 1.5 rocker. 
Ron
no 1.5's had stock 1st then rollers, same issues
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Re: 440 problem
[Re: DaytonaTurbo]
#328601
05/26/09 11:57 AM
05/26/09 11:57 AM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
OP
Not enough dumb comments...yet
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OP
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Posts: 24,562
Brookeville, Md
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Quote:
So it acted the exact same with the summit cam? Summit cam is lower lift, 465/488 so I tend to think valvetrain stability is not the problem there but you never know. Will actually rev above 55 or just stop making power there?
From the way it sounds it just doesn't go anymore.
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Re: 440 problem
[Re: JohnRR]
#328605
05/26/09 12:18 PM
05/26/09 12:18 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
OP
Not enough dumb comments...yet
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Posts: 24,562
Brookeville, Md
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Quote:
what's that convertor flashing to ? I haven't seen rave reviews on the MP convertors ...
I had one for over 3 years w/ zippy problems. Doubt it's a convert problem as they are usually a slipping problem.
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Re: 440 problem
[Re: firefighter3931]
#328606
05/26/09 12:23 PM
05/26/09 12:23 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
OP
Not enough dumb comments...yet
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Brookeville, Md
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Quote:
Here's a VooDoo cam thread ;
https://board.moparts.org/ubbthreads/show...part=1&vc=1
Steve's comments on the first page :
"I could never get the Mopar Voodoo hydraulic cams to rpm. Tried everything, big and small block, cam swap to another brand fixed it."
Ron
no REV limit on the car...and he had the same problem w/ the 488 summit cam.
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Re: 440 problem
[Re: Mr.Yuck]
#328607
05/26/09 12:52 PM
05/26/09 12:52 PM
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Joined: Jan 2003
Posts: 75,047
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,047
U.S.S.A.
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Quote:
Quote:
Here's a VooDoo cam thread ;
https://board.moparts.org/ubbthreads/show...part=1&vc=1
Steve's comments on the first page :
"I could never get the Mopar Voodoo hydraulic cams to rpm. Tried everything, big and small block, cam swap to another brand fixed it."
Ron
no REV limit on the car...and he had the same problem w/ the 488 summit cam.
then it's only 1 or 3 things , the fuel system ... he changed it , the ignition system or the CONVERTOR ....
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Re: 440 problem
[Re: JohnRR]
#328609
05/26/09 01:17 PM
05/26/09 01:17 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
OP
Not enough dumb comments...yet
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OP
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
Quote:
Here's a VooDoo cam thread ;
https://board.moparts.org/ubbthreads/show...part=1&vc=1
Steve's comments on the first page :
"I could never get the Mopar Voodoo hydraulic cams to rpm. Tried everything, big and small block, cam swap to another brand fixed it."
Ron
no REV limit on the car...and he had the same problem w/ the 488 summit cam.
then it's only 1 or 3 things , the fuel system ... he changed it , the ignition system or the CONVERTOR ....
John how is the converter going to make an engine fall flat at 5500 or any rpm? seems to me if it was bad it would fling to 6500 and not go anywhere.
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Re: 440 problem
[Re: Mr.Yuck]
#328610
05/26/09 02:10 PM
05/26/09 02:10 PM
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Joined: Jan 2003
Posts: 75,047
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,047
U.S.S.A.
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Quote:
Quote:
Quote:
Quote:
Here's a VooDoo cam thread ;
https://board.moparts.org/ubbthreads/show...part=1&vc=1
Steve's comments on the first page :
"I could never get the Mopar Voodoo hydraulic cams to rpm. Tried everything, big and small block, cam swap to another brand fixed it."
Ron
no REV limit on the car...and he had the same problem w/ the 488 summit cam.
then it's only 1 or 3 things , the fuel system ... he changed it , the ignition system or the CONVERTOR ....
John how is the converter going to make an engine fall flat at 5500 or any rpm? seems to me if it was bad it would fling to 6500 and not go anywhere.
ok , nevermind on the convertor , maybe he should have put a 383 in it instead ?? 
what has been done with the ignition system and has he CONFIRMED fuel pressure at WOT ???
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Re: 440 problem
[Re: JohnRR]
#328611
05/26/09 02:20 PM
05/26/09 02:20 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
OP
Not enough dumb comments...yet
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OP
Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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[ ok , nevermind on the convertor , maybe he should have put a 383 in it instead ?? what has been done with the ignition system and has he CONFIRMED fuel pressure at WOT ???
it was a 383 car...69 RR. yes ignition was swapped as well..and he put a gauge on the cowl for that reason, yes pressure is good all the way down track. Wonder if it could be an air flow problem??? Never asked if he's running it w/ a air cleaner or not.
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Re: 440 problem
[Re: JohnRR]
#328615
05/26/09 03:36 PM
05/26/09 03:36 PM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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Quote:
ok , nevermind on the convertor , maybe he should have put a 383 in it instead ??
 ...........  
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