|Nov 11, 2011, 11:03 AM|
United States, IL, Naperville
Joined Jul 2004
Trader Rating: 147
Macs Pre-Tuned 40-size Header & Pipe, NIP
Up for sale is a NOS Macs’ #1953 Pre-Tuned standard header, pipe, coupler and mounting hardware for a 40-size engine, new in package. Bolt-holes on the header are 39mm center-to-center with an exhaust opening of 7x28.5mm. Originally designed for a Super Tigre S-40, this system works equally well on Thunder Tiger 36-46 engines and O.S. Engines 40-46’s if the header bolt hole distance is decreased a half-millimeter with a drill or your rotary tool. This system suits any engine of nominally 0.40 in3 displacement that roughly matches the bolt centerline distance. I saw the rpms of my Thunder Tiger Pro 40 increase some 1,200 rpm over the stock exhaust on a 9x6 APC prop and my ST S-40 increased 2,100 rpm on a 10x6 APC prop, all with no trimming of the header. Compare with list price of $111.95, and grab yourself a bargain!
$80 shipped CONUS.
|Category||Thread||Thread Starter||Forum||Replies||Last Post|
|Sold||Tuned Pipe w/ Header for OS Max .40/.45 FSR or similar||Garyss||Aircraft - Fuel - Engines and Accessories (FS/W)||1||Sep 02, 2011 06:21 PM|
|Sold||Macs Tuned Pipe & Header Set K&B .61 NIP $65.00 FREE SHIPPING||stevster||Aircraft - Fuel - Engines and Accessories (FS/W)||1||May 11, 2011 12:52 PM|
|For Sale||Macs Products K&B .40 tuned pipe & header||maddmann||Aircraft - Fuel - Engines and Accessories (FS/W)||0||Feb 18, 2010 09:39 PM|
|Off Site||macs pre-tuned system (tuned pipe and header)||huycao1980||Aircraft - Fuel - Engines and Accessories (FS/W)||0||Feb 21, 2009 01:37 AM|
|For Sale||Macs Tuned pipe header - .40-.50 size||CryHavoc||Aircraft - Fuel - Engines and Accessories (FS/W)||0||Jan 18, 2009 08:42 PM|