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Re: dyno results... not happy diagnosis please [Re: MikeyT] #1063126
08/27/11 11:17 AM
08/27/11 11:17 AM
Joined: Jan 2003
Posts: 16,916
NC
440Jim Offline
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440Jim  Offline
I Live Here

Joined: Jan 2003
Posts: 16,916
NC
My thoughts.

1) The new cam should be installed about 106 intake lobe centerline (110 LSA ground on the cam).

2) The new converter could be effecting the chassis dyno numbers, especially the torque peak.

3) Even if the engine is actually down slightly in peak hp (that is an if), I think the changes will make the car faster on the track. But readjusting the cam would be on my list of things to do.

Since you said the cam was put in "straight up", does that mean you aligned the sprockets dot-to-dot? If so, the ICL might be lower than 110, but without a degree wheel there is no way to know. But I suspect the cam needs to be advanced 3-5 degrees from where it is now.

Re: dyno results... not happy diagnosis please [Re: 440Jim] #1063127
08/27/11 01:24 PM
08/27/11 01:24 PM
Joined: Jul 2004
Posts: 4,732
Watertown, WI
MikeyT Offline OP
master
MikeyT  Offline OP
master

Joined: Jul 2004
Posts: 4,732
Watertown, WI
Ok, so here is the plan
1) Keep timing at 36 at 3000 rpm
2) Take her to the track to jet for MPH
3) At some point advance the cam

Does that seem about right?

And to answer your Question Mr. P Body, unfortunately the car does not have adjustable rockers but Harland sharp rollers
mike


1969 Dodge Dart Swinger
Re: dyno results... not happy diagnosis please [Re: MikeyT] #1063128
08/27/11 02:34 PM
08/27/11 02:34 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
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Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Quote:

Ok, so here is the plan
1) Keep timing at 36 at 3000 rpm
2) Take her to the track to jet for MPH
3) At some point advance the cam

Does that seem about right?

And to answer your Question Mr. P Body, unfortunately the car does not have adjustable rockers but Harland sharp rollers
mike


Mike, what do you mean? I have two sets of Harland sharp rockers on motors, they are both adjsutable with full needle bearing on the rocker shafts


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: dyno results... not happy diagnosis please [Re: Cab_Burge] #1063129
08/27/11 04:32 PM
08/27/11 04:32 PM
Joined: Jul 2004
Posts: 4,732
Watertown, WI
MikeyT Offline OP
master
MikeyT  Offline OP
master

Joined: Jul 2004
Posts: 4,732
Watertown, WI
Cool, that is good! I didn't realize that I thought that they were set rockers and not adjustable at all! Both times I had them set up, my engine guy helped me set it up.

Mike


1969 Dodge Dart Swinger
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