Anti-reversion plate vs shear plate
#1
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Can anybody explain what the difference is between the two? I've decided to run 1050 AED Dominators on my engines, and I'm planing on running anti-revestion plates, but I also see shear plates and I can't find a good explanation of what the difference is between the two. Right now I'm leaning toward the Reher Morrison plate.
Last edited by endeavour32; 04-19-2017 at 02:27 PM.
#3
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Shear plates and anti-reversion plates are sometimes the same things.
What other one are you looking at other than the Reher Morrison ? I'll see if I can compare the designs and thus what they where trying to do.
Here is the bottom side of the Reher MorrisonvAnti-Reversion Plate:
![](https://cdn.shopify.com/s/files/1/0051/9302/products/4500-Rev-Plate_medium.jpg?v=1292525220)
Last edited by SB; 04-19-2017 at 05:42 PM.
#4
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The Pocketed spacer plates work well at certain rpm ranges ( mostly Higher ) but they have the added benefit of greater plenum volume in the intake , with the 4 hole spacer .
#6
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Okay, done dinner.
The shear plate shown below just supposedly helps reintroduce fuel that may cling to bottom of the bore of the carb. Not a big deal in my mind.
The reversion plates do help......but for huge cams and big heads that do have a lot of intake reversion at lower speeds...and more effective on tunnel rams that place the bores pretty much over the intake runners. Intake valve has a straight shot to the atmosphere in those app's.
You are not running 280+ at ,050" cams and 380+cc heads. So, neither type of plate a big deal. If you have the room, a 1" blended spacer is good to use. If you don't have the room,...don't sweat it. If your Dom has internal linkage, you will need at least a thin flat plate underneath it to catch a fallen off part if it happens.
The shear plate shown below just supposedly helps reintroduce fuel that may cling to bottom of the bore of the carb. Not a big deal in my mind.
The reversion plates do help......but for huge cams and big heads that do have a lot of intake reversion at lower speeds...and more effective on tunnel rams that place the bores pretty much over the intake runners. Intake valve has a straight shot to the atmosphere in those app's.
You are not running 280+ at ,050" cams and 380+cc heads. So, neither type of plate a big deal. If you have the room, a 1" blended spacer is good to use. If you don't have the room,...don't sweat it. If your Dom has internal linkage, you will need at least a thin flat plate underneath it to catch a fallen off part if it happens.
![](https://www.quickfueltechnology.com/carb-spacers/images/300-4500-S.jpg)
Last edited by SB; 04-19-2017 at 08:54 PM.
#7
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I called Dart today and asked if I should switch to a 4500 intake or run my 4150 intake with their 4500 adaptor. They told me to keep my current intake and run the adaptor. So I ordered the 2" adaptor plate. I also have a 1" 4500 HVH super sucker, but I wasn't planning on using that. 3" of spacer seems like a lot. I think I have the clearance to run it on top of the adaptor. Should I try it, or do something different?
#8
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I may have a few of these 2" 4500-4150 spacers kicking around, I'll check in the AM
![](http://www.jegs.com/images/photos/200/264/264-SS45004150.jpg)
#9
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I've tried lots of these things on the Dyno with several motors. Don't get too caught up with these things. If you are running at full throttle 90 percent of the time then it's worth it. Run the Reher Morrison plates and move on.
It's gets real complicated when you start getting into the adjustable tube lengths and how it affects jetting
It's gets real complicated when you start getting into the adjustable tube lengths and how it affects jetting
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I forgot about this thread...sorry, I get sometimers in the AM..start the day with a freshly cleared of everything mind...lol.
E32 - I just have one...thought I had more...so I'm gonna hold on to this one. Sorry.
E32 - I just have one...thought I had more...so I'm gonna hold on to this one. Sorry.