Competition DDs new camshaft for 12v & 24v

[JKloppe]

Looks like the bottom end with the camshaft is amazing. The top end falls off sooner though. They say 3. 8mpg better, I could use that!!



Where are those DD guys to tell us about this new camshaft? Lets here it.

http://www.dieseldynamics.com/



JK

 

[J.R. Adkins]

Back to the top!

Im interested in this cam also? So lets here it!!!

 

[Stefan Kondolay]

I know that Fred Swanson has one and rubs it in all the time over the phone. I just keep telling myself that I will have one to in good time. He said the spool up is simple amazing.



I think Mopar Muscle is also looking at getting one. I am hoping that it will wake up my 35' tired, 3:54 geared truck. Not worried as Lawrence said that spool up won't be an issue. I was surprised that the price was so reasonable for all the R&D that went in.

 

[Joseph Donnelly]

I am running the cam, and the top end doesn't fall off quicker on my Ram. There were probably other things going on that made it look that way on the DD website graphs. Different turbo or something. The cam sure helps spool up a big turbo. Helps with egt too.



I worked with Lawrence for about 8 months and 18 cam changes between us and the result is excellent. I have a couple of them on the shelf to help friends with installations so we continue to get more data. Lawrence has installed a number of them. So far, all is very positive.

 

[Greg Boardman-RIP]

I will meet up with Fred on Friday night and I hope he will take me for a ride I will let you all know what it is really like. Set up for an April install of 91% tc and a vb and DDII's... ... . May a cam be in my future????????????? I'm awful close to vegas, Just drove home through the desert... 248 miles in under three hours. Vegas is 200 miles away, That could mean two hours???

 

[HoleshotHolset]

Wasn't it like $3k?

I heard that it made 600rwhp with lower EGT's than an OEM cam..... that's worth it in my book. That kind of power with reduced EGT's would allow you to make MORE power... .



Matt

 

[KLockliear]

Trying NOT to sound like advertisement here...

The cam does work very well. There are about 13 of them out there so far, plus the ones in both of our trucks. They have 4 main benefits:

• 150+ degree drop in EGT
  
• Spools the turbo up about 40% quicker
  
• Reduces about 40-50% of the smoke
  
• Increases fuel mileage
  

Notice I didn't say it adds HP. It doesn't. HP doesn't come from air with diesels, it comes from fuel. What the cam DOES do though is allow you to put in more fuel, by lowering EGT's and reducing smoke.



With the decreased spool-up time, you can also run a bigger turbo without the increased lag - or run a moderate turbo and spool it up like a stocker.



I will soon have video up on our website that shows a full 1/4 mile pass with our white Dodge. It has our Super Mental injectors, modified VP44, cam, Ultimate Fueling Module, exhaust and the other usual suspects. It went 13. 63 @ 98mph with 532hp/1105tq on #2 diesel only and you will get to see first hand how much smoke it makes when moving.



Hope that's what you guys were looking for.

 

[HoleshotHolset]

Thanks Keith!



That's pretty much what I meant by more HP, but you said it much better. More airflow = more EGT reduction = ability to add more fuel for more HP increase. (flowchart method... )



Matt

 

[Don M]

Keith wrote: " HP doesn't come from air with diesels, it comes from fuel. "



Please explain/qualify that statement... .



Don~

 

[KLockliear]

HP comes from fuel. The more fuel you have, the more power that can be made. Just adding air (boost) without fuel lowers EGT's, but won't add HP.



Take a look at someone with a True Torque Module (or EZ box). If you dyno with and without the elbow, the truck will make the same power.

 

[Mark_Kendrick]

I just talked to keith about a cam.



I live 700mi from the nearest installer and they won't sell it w/o installing it. They claim they are protecting their product. They are protecting themselves from profits on part sales.



I'm not accustomed to beig told that a vendor doesn't trust the customer not to copy their product. #@$%!



Keith,

My offer still stands. When you change ya'll your minds call me.



The only products I buy are over the counter unless I lack the technology or facilities to implement them.



I find it alarming that as many people support this practice as there are buying your products. Insulting the guy with the checkbook is not smart business.

 

[Fred Swanson]

How well does it perform

Stefan, not trying to rub it in, just making you more anxious for it.

I've had the cam in for almost 2 weeks, and after 4 tanks of fuel, my average has gone up by about 2 MPG.

I have also noticed my EGT's under normal driving have dropped about 100F. I have also noticed that under extreme fueling, my top end EGT has dropped 300F.



This is exactly what I was hoping for. Here's the scenario, before, during and after.



Stock cam, DD3's, PDR HX35, DD UFM-DR, spoolup was very quick.

DD PCam, everything else the same, spoolup was Unbelievable. Made a couple of runs around the block. Smoke decreased drastically. Truck hits hard off the line.

DD PCam, HX40/16, spoolup is faster than original setup. Smoke is very reduced, especially off the line. Still hits extremely hard, and pulls even harder on the mid and upper RPM's. Does not even hint of letting off on the top end.



The Cam does what it was intended to do. Get more air into the motor faster.

Next I'll be doing the head work, to further reduce EGT's, and go to bigger injectors in the quest for more power.

 

[Boldt's Wagon]

If a diesel is operating in a region that air is starting to be restricted, more air will increase efficiency or HP.



The thermodynamics of the diesel cycle give the efficiency as a direct function of the compression ratio. The higher the compression ratio the higher the efficiency. More miles per gallon or more HP for the same gallon (fuel flow).



If there are some restrictions on air flow, your effective compression ratio is reduced. Open up the air flow with exhaust system, air filter, exhaust manifold, better turbo, or change the cam and the cylinder can have more air in when the intake valve closes and the compression stroke begins.



There has been data presented with improved turbos on other threads that show a HP gain (how much is due to increased effective compression ratio and how much is due to smoke reduction from an initial overfueled condition is open for debate).



Other threads have reported increased milage from combined exhaust and air filter changes.

 

[Don M]

Hey Mark, Dont feel bad. I cant pry one away from 'em either. They are wanting to protect the grind specs cuz too many folks have been screwed by copying.

Certain companies come to mind.



They will install the cam for you though. A guy that really wanted to could copy the specs after install so... . who knows how it will pan out.



My understanding from Joe is that the cam is/was major time and bucks to put together. Nothing from the big cam companies was even close to what we need. DD did their homework and put sweat into this baby. Too bad it has to be this way. Not sure how I would handle this in if I was in their situation.



Keith,



Your very correct in your example and it applies to most other cases as well. I dont like blanket statements though.



Fred,

Sweet. 300 degrees is BA.





Don~

 

[KLockliear]

Originally posted by Boldt's Wagon

There has been data presented with improved turbos on other threads that show a HP gain (how much is due to increased effective compression ratio and how much is due to smoke reduction from an initial overfueled condition is open for debate).

Also remember that as HP increases, one big reason that you see a HP increase going to a bigger turbo is the larger turbine housing reducing the drive pressure (pumping losses) in the exhaust tract.

 

[CUMINNTSTRKN]

guys



i drove in a truck tuesday with a dd cam in it and it ran good. it has sm, dd cam and a hx-40 with a auto. the truck is great. but i didn't feel that it ran any better than my truck on just #2. although the turbo did spool up great.



so it comes down to the $2500 ?. i don't think it's worth the $ but i do believe that it does what they say. i'm sure dd has a lot of r&d into this project, and they have to get it back somehow. part of the $2500 is labor i think it's around 4-6hrs install.



jim

 

[KLockliear]

Don't forget you also have to refill the A/C system. BTW, the BOOK says 27hrs to swap a cam according to Dodge.

 

[CUMINNTSTRKN]

27hrs? maybe a 5 star dealer could do it in 25hrs. so at $75 per hr that's $2025 so the cam is only $475



jim

 

[Diesel Freak]

I would like a new Bumpstick, but not untill the price is reasonable.

 

[Briar Hopper]

Dave Mitchell at Enterprise Engine has a good price on his cams. It might be worth a call to him to see what he can offer.