Quote: Originally Posted by darrell cox
Coming soon the tested and proven DCR TOP END OIL MODIFIER (Patent Pending)
. One of the smallest devices vs power gains. Simple to install in only 30-45 minutes and gains anywhere from 15 hp and tq gains on stock SRT's to as much as 100 hp and tq gains on full tilt cars! Gains have been proven on everything we have tested ( tested over the past 8 years) street, strip, landspeed and road coarse. They are in production right now and we will start taking orders from us and our dealers soon
. This is the single best invention I have produced that can apply to everyones SRT-4, Mitsh. EVO, and the Mitsh Eclipse 4G63.
Quote: Originally Posted by darrell cox
It is a device that installs into the cylinder head that contols oil flow/volume. Due to "pressures" present on both intake valves via boost and exhaust valves via back pressure the OE oil control method lets the valvetrain loose its "control" over the valves thruout the engines rpm range regardless of the cams,valves,springs,retainers,cam gears,turbo,etc that you may or may not have. Due to the out of "control" valves they tend to bounce off of the valve seats and the lash adjuster lifters "pump up" slightly to cause the engine eff. to drop off. This is due to the lack of proper oil flow/ pressure acting upon the lash adjusters! This is the cure...proven as we have tried everything imaginable including "solid" lifters with nothing but failure. We have tested up to 12,500 rpm on our race cars with no failures. They have been fully tested on everything possible. We worked with our #1 dealer Aaron @ Realtune to finalize the production design and dyno/street/strip testing. This has been one of our best DCR kept speed secrets for 8 years. It has finally become where we felt comfortable releasing this product via the patent pending and the exstensive testing that we have performed. The final design is what led us to our most current record run in Crawfords NHRA Hotrod Class SRT-4 to a 7.90@188.7mph 1/4 mile! We will be posting dyno before and after as we progress.
Thanks!
Darrell
Darrell Cox Racing/Team Dodge Motorsports/SRT
That is what DCR had to say ^^^
Basically what the issue is...
There is to much oil pressure/volume in the head. Its causing lifter pump up issues. The so called ''6200 stumble''.
It fixed 4u2nv`s car as many know. It even helps stock like cars. I picked up 3whp peak and 8-10whp from 5k-6k on a stock turbo car. We picked up 20whp from 4k-7k in our big turbo car. After 7k we gained about 100whp
. Before the car would DIE up top. We made 505whp@6000 rpm at the time and made like 350whp@7500rpm. Which didnt make sense with the turbo, and cam combo.
Stock oil pressure readings were almost 50psi at WOT. Which is way to much. We are basically knocking it down to around 30psi. Those numbers will vary with different oil thickness
ITs not just about pressure also. Its about volume. You cant just block X amount of oil pressure.
I have about 10k miles with one of these and zero signs of any long term damage. DCR has been using them for years in the race car.
We did ALOT of testing on this, and tried 13! different styles. We almost lost the motor with one of the setups. So if anyone wants to try and copy it, have fun replacing your motor
For Das,
Basically its on a smaller scale of what you were seeing when you used stock valve springs. Not the samething, but you get the idea.
Any more questions? Sorry if this is vague, Im just brain fried from these
