Latest News
DMPE Flexplate SFI update.
DMPE will be upgrading SFI 29.1 to 29.2 to meet the new ADRL specifications after the first of the year. Please email Debra and she will give you more information.
* check out latest engineering to see our new screw blower drive absorber*
DMPE Billet 3rd member
DMPE has released its new 3d designed and machined 9" ford third member. We have redesigned the 3rd member from the ground up to provide the lightest and strongest gear housing available for todays high horsepower cars. This housing provides enough room for a 10.5" ring gear and also uses 3.812" OD spool bearing. The pinion support location is single point bored for improved pinion alignment and capture, improving gear life. The bearing caps are captured into the housing to provide unsurpassed stability and reduced deflection at launch, also improving gear alignment under load. Through bolts were chosen over studs for improved strength and deflection control. Side ring load bolts, increased pinion bolt count and face oring are also features added to our new 3rd member.
each 3rd member includes: third member housing with caps, bolts, nuts. Pinion support, pinion inner and outer bearings (large pro gear dia) pinion seal, pinion shims. Load bolts, spool adjusting nuts and locks. (ring and pinion, Yoke and pinion nut not included)
Call DMPE for more information:



New From DMPE
SFI 29.1 Approved flex plate designed specifically for High Horsepower converter driven cars. 3D designed and machined to meet the needs of todays ADRL lightweight Pro Extreme cars. The flex plate comes with hard inserted 10.750 and 11.50 bolt circles for converter mounting (other converter mounting available upon request). The center converter location is single point bored to suit a 1.700" converter hub. Crankshaft bolt pattern is Hemi 8 bolt. The DMPE flex plate exceeds the SFI Foundations strength and material requirements and weights only 2.5 pounds.
DMPE part number 250-022-99-730 (no starter ring)
Unit price $425.00


At DMPE Inc. our services help each of our customers reach their ultimate goal: WINNING!
DMPE has the most knowlege of Roots Supercharger from design to repair to performance improvements . Whether it's overhauls, damage repair, parts or new complete units, we are the # 1 source for performance superchargers. Although we manufacturer our own high quality superchargers, we do welcome all other brands for repair, overhaul or modifications. DMPE also specializes in fuel system parts, service and set up. We offer wet flow fuel system bench testing along with a complete line of fuel pumps, fuel injection parts and carbon fiber and magnesium injector hats. Be sure to visit our online parts store for all your racing needs.
DMPE Getting Busy with Marine Superchargers

DMPE is also offering service and performance upgrade work on small superchargers from the marine industry. With efficient turn around times and great knowledge of the product we offer another critical service in a world where answer are sometimes hard to come by. Pictured is Todd Jurek's offshore Sonic with twin supercharged 575's.

New Mk 12 Injector Hat for Screw Blower Applications


C. G. Composites Ltd, the world leader in Carbon Fiber fuel injector hats, in conjunction with DMPE Inc. introduces the Mark 12 axial screw blower injector hat. Like its predecessor the Mark 11 (tall version), the Mark 12 is fully 3D modeled and designed. Carlo Gandolfi, owner of C.G. Composites stated, “These two new injector hats (Mk 11 and Mk 12) are in a league of their own. The perfectly cnc machined plug that DMPE provides me to make the set of molds and then the actual part is a pattern makers dream. Working with all at DMPE has definitely brought our product to the next level. The ultimate goal of these two new products is to bring the racer a lighter, higher quality part, which performs better on the track”.
The Mk 12 was designed with visibility in mind for alcohol funny cars and Outlaw Pro Mod racers alike. Gandolfi says, “Creating a hat that met the height goal and the performance level was the premise to the project and we are happy with the outcome”.
The hat has a unique bolt pattern and requires a special restraint plate that attaches to the PSI screw charger in both its C and D versions. The plate also allows for the use of DMPE’s stealth axial insert if one chooses to use the complete package or move in steps as the racer decides to move forward.
The Mk 12 weighs in at 6 pounds and a total vision height of 6.375 inches. For more info on the Mk12 injector hat and or any of the other DMPE screw blower components please contact DMPE inc.
DMPE Screw Blower Manifold Studs

Finally a purpose built stud and nut kit for the PSI screw blower. This stud and nut is built for easy access in the close configuration of the screw blower application. Studs are anodized for corrosion protection. 12 point nuts for ease of access and that racey look. Call for immediate pricing and info. or click Here.
Stealth Insert Plate Unmasked




Completely 3D modeled and machined our new StealthTop Insert Plate for the PSI C or D rotor screw compressor is the next level of developement in screw blower technology. This new piece is compatible with our new MK 11 injector hat, listed below. Both pieces complete the axial (front loading) concept behind screw blowers. For more info and pricing please call DMPE Bryan @ 1-269-428-5070. Note......Insert plate is also available for all standard hat designs. PSI deep throat, PSI Funny Car, and JBR Models.
Rear Geared Nitro Applications for 14-71 and 6-71 M4's



Commisso Smashes Pro Mod Record with DMPE M5 14-71 Supercharger
DMPE / C.G. Composites New Design

DMPE / C.G. Composites have come to the table once again with our latest injector hat design for screw style superchargers. It is the first 3D modeled and machined carbon fiber injector hat.
DMPE inc. Introduces Improved High Velocity Rotor Shaft Seals

Dmpe has been spending many hours rethinking and developing our line of performance products to offer the best possible product to our customer. While improving our line of supercharger units, we have made time to address the need for an improved sealing element for the gear cavities, and also the drive snouts. The new alcohol shaft seals have proven themselves in our dyno testing without failure. They also have shown improved ability to withstand the increasing surface speeds and pressures that our present line of seals were struggling to handle. We are pleased with the seals improved performance and are now introducing the seal design into our snouts as well. The snout seals are in production at this time. The new seals are based on aluminum housings and are sold under part number 100-002-99-331. The seals will retrofit to all Kobelco superchargers using the small alcohol shaft. However a small modification will be required to the Kobelco shaft to allow installation. DMPE will provide proper instruction in these situations. This modification labor will not be required when installing on any of the DMPE X3 rotor lines.