Anyone think it is possible to modify the stock charge motion plates? Now that my baby has finally arrived, I'm getting my mod list back out and the CMP deletes are one I want to do.

The Steeda version looks to be CNC'd. However, I've noticed that Paul's HP has their version out now and it looks like an identical casting of the stock ones, minus the flappers.

Anyone think it is possible to pull the flapper assembly out of the stock CMP's, then just epoxy in short segments of aluminum dowel the same diameter of the flapper axle to fill in the holes where the flapper axle would pass through? I just hate dropping $200-300 dollars for a fairly simple mod that is showing some nice gains now that tuners are figuring out how to optimize for them.

 

It may be possible. However, what happens if the stopper/plug were to come out and fall directly into the intake port? Is an engine worth saving $300.00? Your call. Personally I wouldn't take the chance. If your that concerned about the $300.00 just disconnect the linkage from the CMCV, wire them in the open position, and unplug the CMCV electrical connector from the main harness and retune.

 

My understanding is that the Steeda ports are larger than the stock.

 

If you are worried about the cost then spend the money on another mod. I have the Steeda plates and am pretty sure that they will not show any hp gains until after I put boost to the car. I have not done a dyno with them only but they did not help my quarter mile times at all. If you were to modify the factory plates it is doubtful that you would see even half of the reported gains of the CNC machined plates, I base this off of why didn't Steeda offer a "kit" to convert them or produce them from factory pieces. Good luck if you choose to do it though, it would be interesting to see if you could gain from it without corporate engineering.

 

So far for me, IMHO, the delete plates are a waste of time and money.

 

What got me thinking about was seeing a pic in a recent magazine that showed the PHP version right next to the stock ones. It was clear that they used nearly identical castings with no difference in port size (that I could tell by the pic, at least). The PHP version was getting very nice gains.

As for the plug falling out, they would be aluminum and epoxied in. Given identical thermal expansion properties, it would be unlikely to have the epoxy bond fail.

Just tossing around ideas on a lazy Sunday.

WildStray, why don't you like them so far?

 

I haven't seen enough to go buy these yet either...Some gain a little some don't.

 

WildStray, why don't you like them so far?
[/quote]


#1 I don't like opening up an engine without a good reason.
#2 $320 for the parts plus shipping
#3 Cost of tune (required)
#4 Dyno costs
#5 Revs the engine by itself when first started. There are situations (like when
a police car parked next to me), when I don't want to show off how loud
my exhaust is.
Before and after dyno pulls with tune showed no gains.
#6 No one seems to know how the deletes affect emissions (so I will find out
at my next required smog test).
#7 I get to store the stock plates in a box for who knows how long
#8 The cost of reinstall of the stock plates if it doesn't pass emissions

Paul

 

Now, here's a list of all the advantages:







:scratch:

 

I must agree with Paul. I would not do it again - I didn't really see a large performance gain.

 

OK, OK. I think you've convinced me to wait, wild stray. I'm definitely getting an intake/SCT2 so the tune isn't an issue. I don't like hearing about the other stuff. I'll wait until there are more consistent gains and the problems are worked out.

 

FYI most of the tunes supplied are no good unless they are specifically designed with the delete mod. For instance, I tried the JLT tune with the JLT intake and no worky....CEL and went into Safe Mode.


Paul

 

I dont see how that the above posters are seeing no power from the mod when we have already seen the "dyno proven" performance of the units already on the market, namely the Paul's HP and Steeda plates.

Im inclined to believe that the tunes provided with the units are safe and canned and not specific to the vehicle its being used on.

The Paul's HP plates increase hp and torque all the way across the board, as reported by 5.0, with the peak increases of 11.4 & 17.5 @ 3400.

Im still going to get these delete plates and couple it with some headers. Of course a custom tune is the motivation for all this, might as well toss in more power while im at it.

-Dan

 

I read about the big HP gains, just before I purchased and installed the delete plates. I also read about the big HP gains, just before I purchased and installed the headers. I also read about the big HP gains, just before I purchased and installed the Magnaflow X pipes.

Good luck my man!

 

So whats the point Stray?

-Dan

 

Sorry to highjack thread, but mine are for sale if anyone is interested. Check for sale section. $200 shipped. IM if interested. They do make rwhp/rwtq gains but you need a "custom tune."