| Welcome to Downs Engineering |
| We are now in our 35th year as a California company and 55 years in the racing industry. We have expanded our Hayabusa product line in order to better serve our customers. We are a full service shop and are available to do research and development projects, from engine and oil systems to complete car builds. We have developed race winning products and systems for the Hayabusa engine for the past 18 years. |
Suzuki Hayabusa Engine
Undergoing Testing On Our
Dynamometer
Undergoing Testing On Our
Dynamometer
| making you go fast is what we do best! |
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| Hayabusa Specialty Parts |
Setting up a custom design
Turbo Engine on the Dyno
Turbo Engine on the Dyno
| Our Wet Sump and Dry Sump Oil Systems are the best Hayabusa Systems on the market today |
| Parts and supplies for all types of Motorsports. Sand Rails, Kit Cars, Race Cars, Motorcycles, Track Cars, Street Cars |
Contact Mike Downs
Downs Engineering
19564 Eighth St East
Sonoma CA 95476
phone: 707 938 1011
fax: 707 935 0481
email: mdowns@downsengineering.com
Property of Downs Engineering. All rights reserved.
Downs Engineering
19564 Eighth St East
Sonoma CA 95476
phone: 707 938 1011
fax: 707 935 0481
email: mdowns@downsengineering.com
Property of Downs Engineering. All rights reserved.
| Having problems with your Busa? Low oil pressure? Oil starvation in corners? Connecting rod failures? Click here for solutions to these and other problems inherent in the Hayabusa engine. |
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| HAYABUSA WINTER REBUILD SPECIAL We will rebuild your Hayabusa engine using new OEM Main and Rod bearings. The rebuild also includes New Piston Rings, New Oil Pump, and Cam Chain, as well as a complete competition valve job. We thoroughly inspect the gearbox and shift forks, along with the condition of the clutch discs and clutch basket. We run-in the completed engine on our engine dyno. After run-in we make power runs on our in-house dynamometer to insure proper running. If you would like to upgrade your pre 2008 engine to current power and torque levels we can install the 2mm stroked 2008-2011 1340cc crankshaft and replacement exhaust cam. Get ready now for the 2018 season. Racing starts again soon. |
We are now dealers for Wossner
connecting rods, currently the
strongest Hayabusa connecting rod
available. Limited time introductory
offer: $859.00 per set. Order your
set today.
connecting rods, currently the
strongest Hayabusa connecting rod
available. Limited time introductory
offer: $859.00 per set. Order your
set today.
WOSSNER CONNECTING
RODS
RODS
The "best bang for your buck" parts to improve
the performance and reliability of your Hayabusa
engine.
High Volume Oil Pump Gear $115.00
High Pressure Oil Pump Relief Valve $79.95
HD Cam Chain $150.00
HD Clutch Springs $39.00
Offset Timing Key $89.95
the performance and reliability of your Hayabusa
engine.
High Volume Oil Pump Gear $115.00
High Pressure Oil Pump Relief Valve $79.95
HD Cam Chain $150.00
HD Clutch Springs $39.00
Offset Timing Key $89.95
Race Car Design and
Construction
Construction
Race Car Restoration
For a limited time, 10% off D/E Hayabusa Wiring
Harness. Our modified harness removes all the
unwanted bulk and mystery of your stock harness.
Attach an ignition switch, starter button, and you're
ready to go.
Harness. Our modified harness removes all the
unwanted bulk and mystery of your stock harness.
Attach an ignition switch, starter button, and you're
ready to go.
Below is the Lotus 35 as received from client.
Bottom picture is after restoration
Bottom picture is after restoration
200 MPH Mustang designed and built
by Downs Engineering
by Downs Engineering
