DCR Oil mod....

[Slippi84]

I definitely believe that it limited pressure up top. So much so that it was a detriment to power. I think that was the problem. My guess is that the lifters themselves couldn't maintain and were collapsing.

I'll give you a chance to look at my dyno sheets to see if you want to hold to that statement.

Let's start off by prefacing this with my car's specifics;
2.0 NA, 12.5 comp, Crower 3's, Crower springs, SS valves, P+P head, 8200 redline, 2.4 valve train, MSnS, I guess that's the pertinent stuff.

Wether or not the SRT reacts differently, I can't say.

The car ran basically the same line up to peak powerish (actually a couple of slight gain spots).

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(I don't know why we didn't use the 204.9 run, )

But right before peak we had the waterfall happen. Here's a more focused shot:

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You can see how it just starts falling off. We did three runs (the red, extended one is obviously without the mod). First run had the cooling off time of me putting in the mod while the car was on the dyno (maybe 15 minutes tops from shut off to start up). That was the "best" one (the pink? one). Then we did two more pretty much back to back (that held pretty much the same line).

To me that is definitive proof that this mod does not do what it says it does. No bashing, no hatred, no anger, no axe to grind, just the facts as I see them.

MB

Oh yeah, for fun here's the 204.9whp run;

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And a big thanks to Matt and my buddies at DentSport for letting me play.

STill kinda confused it what the second graph is? Is that oil pressure? The pics are too small. From the looks of things you made 1whp which could be fluke but like I said before I didn't think it was a hp mod more of a better running situation mod.

 

[bullettdsm]

STill kinda confused it what the second graph is? Is that oil pressure? The pics are too small. From the looks of things you made 1whp which could be fluke but like I said before I didn't think it was a hp mod more of a better running situation mod.

No, no, the second pic is an isolation from 7000rpm's to 8000 rpm's. The one line that you see continuing is one of my regular runs without the mod installed. The other 2 drop off lines are with the mod installed.

And the 203.2whp number was just basically one of my "regular" runs we pulled up to compare the DCR restrictor to (like I said, I don't know why we didn't use the 204.9 run for comparison).

The 204.9whp run was done without the mod and its now my current highest number.

And yeah, the pics are small (for the forum). You can just source them or right click and save them to your desktop and then look at them.

MB

 

[Slippi84]

No, no, the second pic is an isolation from 7000rpm's to 8000 rpm's. The one line that you see continuing is one of my regular runs without the mod installed. The other 2 drop off lines are with the mod installed.

And the 203.2whp number was just basically one of my "regular" runs we pulled up to compare the DCR restrictor to (like I said, I don't know why we didn't use the 204.9 run for comparison).

The 204.9whp run was done without the mod and its now my current highest number.

And yeah, the pics are small (for the forum). You can just source them or right click and save them to your desktop and then look at them.

MB

Ok then how much did you make WITH the mod?

 

[bullettdsm]

Ok then how much did you make WITH the mod?

0, actually less than 0. It started dropping off before peak horsepower. Looked like around 203ish. If you save the pic and take a look at it big you will see a couple of spots that it did gain slightly in the curve, but very nominal.

MB

 

[powellds2]

0, actually less than 0. It started dropping off before peak horsepower. Looked like around 203ish. If you save the pic and take a look at it big you will see a couple of spots that it did gain slightly in the curve, but very nominal.

MB

Wow, that sucks, looks like I wasted $16.00. Hey anyone want to buy an oil modifier that will give you gains for 100hp??........

 

[VelocitàPaola]

Mark, power increases/decreases aside, did you notice any changes in your oil pressure?

 

[Blitzeclips]

Haha, j/k. But seriously guys, alot of items out there are made for a buck, and may not even deliver what you payed for. It seems quite a few are jumping the gun here.

Ah hA! I called it!

Mark, thanks as always for the r/d you always put forth for everyone. I truly appreciate everything from your headers to this that you've posted results from.

 

[Slippi84]

Ah hA! I called it!

Mark, thanks as always for the r/d you always put forth for everyone. I truly appreciate everything from your headers to this that you've posted results from.

Don't jump the gun just like you said because DCR never said it would gain 100whp on every car or even and I think this is even more important on a non turbo car. I understand that Marks car is the ultimate NA car but boost changes the game.

 

[TalonESIT]

Don't jump the gun just like you said because DCR never said it would gain 100whp on every car or even and I think this is even more important on a non turbo car. I understand that Marks car is the ultimate NA car but boost changes the game.

Yeah, I was wondering if the NA-T cars would experience different results... I'm not looking for power I'm just wondering if it helps keep the oil pressure down (for blowby and such).

 

[bullettdsm]

Mark, power increases/decreases aside, did you notice any changes in your oil pressure?

Actually, I'm not in the car at the dyno (Matt is), but if there were any radical changes in the oil pressure, Matt would have noticed and told me. Keep in mind that the mod restricts at the head and my pick up is down low. But I think I see where you are going with that; did the restriction/blockage generate more pressure for the pump to push elsewhere? Not that I noticed, though I wasn't watching for it.

I understand that Marks car is the ultimate NA car but boost changes the game.

Well, guys, you're gonna have to 'splain that one to me. This is a mechanical/hydraulic change to our 2.0 design. It has nothing to do with the combustion chamber or the intake/exhaust tract (the area's that boost generally affect). What is does do is alter the workings of the valve train (by limiting oil to the valve train). Don't think of the dyno chart as a whp measurement, think of it as an rpm meter. As the rpm's go above 6800ish, the valves no longer do their proper job because the oil restriction does not allow them to work properly. Whether you are making 100whp or 500whp the relationship will stay the same. Power level actually doesn't come into play.

MB

 

[Slippi84]

Actually, I'm not in the car at the dyno (Matt is), but if there were any radical changes in the oil pressure, Matt would have noticed and told me. Keep in mind that the mod restricts at the head and my pick up is down low. But I think I see where you are going with that; did the restriction/blockage generate more pressure for the pump to push elsewhere? Not that I noticed, though I wasn't watching for it.


Well, guys, you're gonna have to 'splain that one to me. This is a mechanical/hydraulic change to our 2.0 design. It has nothing to do with the combustion chamber or the intake/exhaust tract (the area's that boost generally affect). What is does do is alter the workings of the valve train (by limiting oil to the valve train). Don't think of the dyno chart as a whp measurement, think of it as an rpm meter. As the rpm's go above 6800ish, the valves no longer do their proper job because the oil restriction does not allow them to work properly. Whether you are making 100whp or 500whp the relationship will stay the same. Power level actually doesn't come into play.

MB

That's why the mod has a greater effect at higher rpms on boosted applications though. At that point when the lifters don't do their job it's due to the speed of the engine and oil pressure. You can't do anything about speed but this changes the oil pressure part. True your engine and a boosted engine are moving at the same speed but a lifter that doesn't open a valve enough on a NA car will shortchange flow a lot less than a boosted engine flowin a lot more aire per second or millisecond. So the amont of time is the same that the valve does not open or close properly but the amount of air lost due to this isn't.

 

[Blitzeclips]

That's why the mod has a greater effect at higher rpms on boosted applications though. At that point when the lifters don't do their job it's due to the speed of the engine and oil pressure. You can't do anything about speed but this changes the oil pressure part. True your engine and a boosted engine are moving at the same speed but a lifter that doesn't open a valve enough on a NA car will shortchange flow a lot less than a boosted engine flowin a lot more aire per second or millisecond. So the amont of time is the same that the valve does not open or close properly but the amount of air lost due to this isn't.

I'm no expert with motors or anything, but I really don't know if I can agree with that. Maxing out the motor's efficiency is maxing out the motor's efficiency- boosted or not. The motor doesn't change itself to accomodate for the turbo you just installed.

 

[Slippi84]

I'm no expert with motors or anything, but I really don't know if I can agree with that. Maxing out the motor's efficiency is maxing out the motor's efficiency- boosted or not. The motor doesn't change itself to accomodate for the turbo you just installed.

Motors effeciency?? Explain?? I'm not talking about the ability of the motr to convert power I'm talking a bout a simple concept of time vs airflow. Airflow for x amount of seconds when the velocity of the air is higher will equate to more air period. Your are not maxing out the engine trust me even if you are boosted. With the ability to have your lifters operate more effectively at higher rpms you can increase airflow by having the valves open and close more idealy.

 

[Street 2G]

well i guess the only way to know, is to know!! has anyone with a boosted application tryed this out?

 

[Slippi84]

well i guess the only way to know, is to know!! has anyone with a boosted application tryed this out?

There are enough who are that bought it we will know soon.

 

[Blitzeclips]

With the ability to have your lifters operate more effectively at higher rpms you can increase airflow by having the valves open and close more idealy.

Maybe motor wasn't the correct word to place efficiency with. I was speaking in terms of the efficiency associated with the lifters in contrast to boosted versus not boosted.

But the velocity isn't going to effect the operation of the lifter, only the external unit is. So I still fail to see where an opening allowing X amount of air in based on it's rise/lift is going to allow more air in based on velocity. Of anything, you'll need to change the volume of the unit due to more velocity.

 

[Slippi84]

Maybe motor wasn't the correct word to place efficiency with. I was speaking in terms of the efficiency associated with the lifters in contrast to boosted versus not boosted.

But the velocity isn't going to effect the operation of the lifter, only the external unit is. So I still fail to see where an opening allowing X amount of air in based on it's rise/lift is going to allow more air in based on velocity. Of anything, you'll need to change the volume of the unit due to more velocity.

Not sure what your saying with either of these statments

Picture the engine as a hose hooked up to a pump. You can't change the size of the hose but you can change the amount and the pressure. When you boost your engine your boosting the pressure and flowing more air or more water threw the hose. Picture that pump on the end of the hose is running 1psi of pressure and at the other end of the hose your blocking ad unblocking the opening to control the timing of flow. If the mechanism that is blocking and unblocking the end of the hose starts slowing down it will either stick open or not open and close fast enough and you won't perform as well. It's easy to understand that his mod is to help the valves or mechanism control flow more effectively but when it is working effectivly at at higher rpms a setup flowing 1psi of pressure through that hose and a setup flowing 20psi of pressure threw that same hose will be affected different because the amont of water(or air flow) lost by the setup not working right is more.

 

[bullettdsm]

Sorry about bringing up an old thread, but for those that may have searced on here, I have put the pics back in on the original post of dyno runs. Putfile is apparently no longer so I have been trying to fix/replace my pics

MB