Now more Horsepower and unbelievable Prop Twisting Torque is possible simply by installing LEES’ new “Cross-Flow™ dual exhaust system. LEES has just completed the final test fit on a Cessna 185 model aircraft. The aircraft information listed below is for the airplane used for test fit. Dual 2-1/2” tailpipes exit the lower cowling. Two tailpipe exit holes will be required in the L/H and R/H side of lower cowling. Exhaust pipes in the photographs were tacked for final fit up. The exhaust is presently being fully TIG welded before being sent out for CMM.
Aircraft Info:
Aircraft-1977 Cessna 185F
Power Plant- Continental IO520 D
McCauley Propeller Systems Model# D3A34C401-C/G-90DFA-2
Engine Mount- Cessna Floatplane 3-Bladed Prop Mount
Syllabus: updated October 2, 2008
- Prescribed Specific Completion Program, PSCP....Completed
- Entire exhaust system will be sent out for CMM XYZ data. ...Completed
- Once CMM data is received; 3 D-XYZ drawings will be completed....In Process
- Noise testing will be performed ...Spring/Summer 2009
- Flight testing will be conducted...Spring/Summer 2009
- Dyno tests at LYCON Engines...In Process
Please note: We anticipate being flooded with phone calls so please email your questions to us at Performance@wemakeyoufly.com. In order to respond to the emails we are anticipating we will not be accepting inquiries by phone.
Please review the new photos that accompany the “Power Monster Cross-Flow Dual Exhaust System”™. They provide a very good overview of LEES’ latest project. This project has been a long time coming and will satisfy the needs of a 30,000 airplane market. We are anticipating being able to conduct noise and flight testing later this year.
The “Power Monster Cross-Flow” ™ Dual exhaust system will be an FAA/PMA approved product for the Fully Certificated General Aviation Aircraft market.
*According to customer dyno tests. The latest dyno test was done at Lycon Engines using one of Ken's IO550 Exp. 11:1 compression ratio engines. It pulled 354 Hp and 668 pound feet of torque with the stock Cessna exhaust system @ 2700rpm and with Leading Edge Exhaust System's "Power Monster Cross-Flow™" dual exhaust, it pulled 381 Hp and 708 pound feet of torque @ 2700rpm, a 27 Hp gain and 40 pound feet of torque!
Fits Continental 470, 520 & 550 Engines - U.S. Patent #'s 5768891 & 6796402
Post 55 Cessna 180 “Power Monster Cross-Flow”™
US Patented Dual Exhaust System.
This exciting new “Bad Boy” dual exhaust fits the later model Cessna 180 models that have a tighter fitting lower cowling than the Cessna 185 models. The only difference is in the tailpipe layout. We are going to have both Cessna 185 and post 55 Cessna 180 tailpipes installed for dyno tests. click here to view photos
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to Learn More About Tuned Versus Equal Length Pipes |
