power plate...poll
- Thread starter oliver12
- Start date
Yes. No one ever said a PP flows more, just more evenly. Common misconception. But I don't know anyone who has gone slower with one.
Mike T
Well-Known Member
- Joined
- May 3, 2013
That's how I understood it also. I run a 1 inch spacer only and was told that this would help with air distribution as well.
It does this by evening the flow to each cylinder as mentioned. It doesn't reduce kr in and of itself. As a side effect of what it actually does, you MAY see a reduction in kr. Case in point, an alky car without power plate probably doesn't show any kr if tuned properly. The car would still benefit from a PP though from a more even flow to each cylinder. Some say the PP hurts alky distribution but not if there is enough heat to cause the alky to flash properly.
To be a little more specific about just what these Power Plates can do. Say if you have a stock or a slight build running on 93 pump gas. You are most likely at WOT between 4 to 5 degrees of timing retard on a properly running engine. Mainly cylinder 6 and 3 are the culprits of KR since they will be the leaner 2 at WOT. You are already losing timing and hp at this point. Putting the head gaskets in the red zone comes to mind also. The PP addition at this point most likely will eliminate 95% of timing retard by having all cylinders with even airflow. You will also be able to get away with 2 more lbs of boost since there is more room for air with a spacer. The car will feel faster now because there is no timing being pulled back. The PP itself did nothing except provide a little more air space for the plenum. It just simply allows the engine to run more efficient but feels like you added 50hp. Now if your have alky kit, SD chip or E-85 it's probably not going to do much for you.
As i mentioned earlier in this thread i use the power plate and i have GN1 aluminum heads,ported intake by Champion,dual nozzle alkycontrol,Maftpro SD setup,and 25% e85. I can run 20 lbs boost on 93 octane only and yes this is without the alky turned on or with e85 added to the 93.
But it's not 93 octane only...
Also not true. There are very little to no volume gains from a PP; it is not a spacer. And cylinders 6 & 3 are not necessarily the ones leaning out. It can be 1 & 2, or 5 & 6 depending on flow and how your fuel system is set up. Everyone's car is different so "most likely" scenarios don't exist without more information. Spacers don't do anything with kr control, they simply increase volume at WOT but most cars don't need them either until very fast; I don't know what the cut off is.
To the OP, read your plugs and figure out if YOUR car needs a PP. And don't listen to this guy, a PP can still be helpful even on alky, race gas, or E85, but you need to determine if YOUR car needs one.
These engines are notorious for leaning the rear two cylinders. 27 years of trying to prolong life and produce better power have proven it. I have never heard of any issue with any other cylinders leaning out in stock form.
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That's always what I thought, 5 & 6, but I read somewhere because of the fuel rail design that 1 & 2 can go lean too. I think it was Bison or someone else reputable, but I don't remember. Sorry to add to the dribble in this thread. 5 & 6 make the most sense to me though as air is crammed back there at a greater rate w/out PP, but that assumes all injectors flow and fire evenly.
buickGN3:16
Active Member
- Joined
- Jun 29, 2012
Deffinately distributes the incoming air more evenly thru the cylinders. Im running stock intake, doghouse, tb with 009 injectors & a rjc plate for stock intake. gained 3 tenths & the timeslips dont lie.. Thats all im saying. We all have our own opinions buy hey it works for me JACK!!!!!
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wellllll personal opinion here . We run those 4 things in the 9s and have never blow a headgasket.
1fastcobra
Well-Known Member
- Joined
- Jan 24, 2012
Old combo no gain (but a nice idle) Egr removed from intake.& Ported heads with Alky. Now. And a new tune. Gained 18hp on the dyno and 2ths in the 1/4 by removing plate guess it depends on the tune
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Could you please provide more detail about your combo.I have an engine on the stand with ported GN1's, just want to run pump gas on the street but I think the Hemco was a better solution for air distribution than the PP.It has also been strongly suggested to me not to race with the PP on the car.
