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Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!

 
DGN
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03/26/2021 08:52 PM

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Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!


Last Edited by DGN on 03/26/2021 08:54 PM
DGN  (OP)
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03/26/2021 09:19 PM

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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
High performance exhaust dropped 50 lb torque.
bricks
Peter W Morgan

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03/26/2021 09:44 PM
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
Very good Nick, now you know what every B/RB guy since the beginning of time knows- the factory HP exhausts are crap. 1rof1
I would have liked to see him use a set of fender well headers though, cast iron or steel the way they have to hug the block to keep everything inside the engine bay isn't doing the flow any good.
Peter W Morgan
DGN  (OP)
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03/26/2021 10:12 PM

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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
Very good Nick, now you know what every B/RB guy since the beginning of time knows- the factory HP exhausts are crap. 1rof1
I would have liked to see him use a set of fender well headers though, cast iron or steel the way they have to hug the block to keep everything inside the engine bay isn't doing the flow any good.
 Quoting: Peter W Morgan


I would like to see him compare the 6-pack to a 750 Edelbrock. Reason is the center carb is rated 350 cfm, outboards are 500 each, 1350 cfm is fine for 600 cid, but low velocity for 440. Notice how poorly the gas flows from the outboards, spurts doesn't even vaporize, poor combustion. Sure looks good though. Factory rating was 390 HP 6-pack, even 750 would be max size.

Last Edited by DGN on 03/26/2021 10:14 PM
Peter W Morgan

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03/26/2021 10:27 PM
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
Very good Nick, now you know what every B/RB guy since the beginning of time knows- the factory HP exhausts are crap. 1rof1
I would have liked to see him use a set of fender well headers though, cast iron or steel the way they have to hug the block to keep everything inside the engine bay isn't doing the flow any good.
 Quoting: Peter W Morgan


I would like to see him compare the 6-pack to a 750 Edelbrock. Reason is the center carb is rated 350 cfm, outboards are 500 each, 1350 cfm is fine for 600 cid, but low velocity for 440. Notice how poorly the gas flows from the outboards, spurts doesn't even vaporize, poor combustion. Sure looks good though. Factory rating was 390 HP 6-pack, even 750 would be max size.
 Quoting: DGN


The 750 would pound the sixer into the ground, it was purely an optics response from the MoPar camp to catch the eye of the GM Tripower guys. Even most of the serious MoPar guys who bought new sixpacks either at least switched them over to mechanical secondary Holleys or went to a large quad. Maybe the most annoying thing about them was a noticeable lag before the vacuum outboards would open up AND THEN if that wasn't enough you got the same effect in reverse when you backed out of it. Not really over carbed as far as being too much air for the engine though since they didn't actually open all the way up.
Peter W Morgan
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03/26/2021 10:35 PM

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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
Very good Nick, now you know what every B/RB guy since the beginning of time knows- the factory HP exhausts are crap. 1rof1
I would have liked to see him use a set of fender well headers though, cast iron or steel the way they have to hug the block to keep everything inside the engine bay isn't doing the flow any good.
 Quoting: Peter W Morgan


I would like to see him compare the 6-pack to a 750 Edelbrock. Reason is the center carb is rated 350 cfm, outboards are 500 each, 1350 cfm is fine for 600 cid, but low velocity for 440. Notice how poorly the gas flows from the outboards, spurts doesn't even vaporize, poor combustion. Sure looks good though. Factory rating was 390 HP 6-pack, even 750 would be max size.
 Quoting: DGN


The 750 would pound the sixer into the ground, it was purely an optics response from the MoPar camp to catch the eye of the GM Tripower guys. Even most of the serious MoPar guys who bought new sixpacks either at least switched them over to mechanical secondary Holleys or went to a large quad. Maybe the most annoying thing about them was a noticeable lag before the vacuum outboards would open up AND THEN if that wasn't enough you got the same effect in reverse when you backed out of it. Not really over carbed as far as being too much air for the engine though since they didn't actually open all the way up. Way testing my memory here 50 years back. Black was stiffest, then purple, then yellow and silver was softest?
stars
 Quoting: Peter W Morgan


Seems like 1 step softer diaphragm springs might have solved both problems?

Last Edited by DGN on 03/26/2021 10:39 PM
Ol' Blue Eyes

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03/26/2021 10:48 PM

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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
Well, now we know...

Buttered popcorn kinda good.

I forgot about all the Worlds problems watching that.

Thanks for posting.


Gearheads on a Friday night...
We see you too...
DGN  (OP)
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03/26/2021 11:30 PM

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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
Well, now we know...

Buttered popcorn kinda good.

I forgot about all the Worlds problems watching that.

Thanks for posting.


Gearheads on a Friday night...
 Quoting: Ol' Blue Eyes


Totally breaking out with ya bro, even for a little while.
banana2
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03/26/2021 11:34 PM
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
DGN  (OP)
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!

 Quoting: MilitaryAttractions


BillyBob her cuzin n yiseree that Cuda one purdy gal wif all that hollowood makeup but now, looky her cuzin hers her grandma stark naked n bootiful to... as grandmas go fer cryin out loud


Last Edited by DGN on 03/26/2021 11:47 PM
Peter W Morgan

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03/27/2021 12:01 AM
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
 Quoting: MilitaryAttractions


BillyBob her cuzin n yiseree that Cuda one purdy gal wif all that hollowood makeup but now, looky her cuzin hers her grandma stark naked n bootiful to... as grandmas go fer cryin out loud

 Quoting: DGN


Thank you Virgil Exner, the automotive stylist who nearly single handedly killed Chrysler Corporation.lmao Freaky looking then and freaky looking now, I kinda like them but pretty they are not.

Last Edited by Peter W Morgan on 03/27/2021 12:01 AM
Peter W Morgan
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
 Quoting: MilitaryAttractions


BillyBob her cuzin n yiseree that Cuda one purdy gal wif all that hollowood makeup but now, looky her cuzin hers her grandma stark naked n bootiful to... as grandmas go fer cryin out loud

 Quoting: DGN


Thank you Virgil Exner, the automotive stylist who nearly single handedly killed Chrysler Corporation.lmao Freaky looking then and freaky looking now, I kinda like them but pretty they are not.
 Quoting: Peter W Morgan


bert-facepalm
Peter W Morgan

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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!
bert-facepalm
 Quoting: DGN


You mighty like this one, not pretty but not weird either. Just the kind of ride that wouldn't get a second look from anyone back in '66 unless your ears were tuned for that Hemi rumble.
1 of 2 'officially' built, this one was a special order by the FBI.


Peter W Morgan
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!

DGN  (OP)
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!

DGN  (OP)
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!

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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!

 Quoting: DGN


Some maniacs used to bore and stroke the RB Chrsylers out to as big as 572 ci, reliability seemed to suffer though. tounge
DGN  (OP)
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!

 Quoting: DGN


Some maniacs used to bore and stroke the RB Chrsylers out to as big as 572 ci, reliability seemed to suffer though. tounge
 Quoting: Anonymous Coward 78868417


Imagine the old 413 cross ram on a 572, torque like a diesal.
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Re: Mopar guys, Nick dyno tests 440 6-pack, Max Wedge 'up ram' exhaust manifolds against factory high performance manifolds. Whoa!

 Quoting: DGN


Some maniacs used to bore and stroke the RB Chrsylers out to as big as 572 ci, reliability seemed to suffer though. tounge
 Quoting: Anonymous Coward 78868417


Imagine the old 413 cross ram on a 572, torque like a diesal.
 Quoting: DGN


Probably all in by 2500 but with a set of 2.75 rear gears (don't try this on your poor old 8.75 Mopar axle) on the street who cares? 1rof1 It's a Saturday night drive-in special anyway.





GLP