Top Flite Header and O.S. .75AX

Top Flite Header and O.S. .75AX
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Top Flite Header and O.S. .75AX - 8/20/2007 1:43:39 AM

jsmeed

Posts: 43
Joined: 7/3/2002
From: DEARBORN, MI, USA
Status: offline

Bill,
Will the Top Flite header and muffler, originally designed for the O.S. 61, work on the .75AX??

_____________________________

Jeff Smeed
Dearborn, MI

Post #: 1

RE: Top Flite Header and O.S. .75AX - 8/20/2007 5:44:29 PM

Bax

Posts: 12663
Joined: 4/26/2002
From: Champaign, IL, USA
Status: offline

Very likely the mounting holes won't line up, though the size of the muffler should be OK. After all, it will work with the SuperTigre G-75.

_____________________________

Bill Baxter, Manager Hobby Services/Futaba Service/North America
3002 N. Apollo Dr. Ste. 1 Champaign, IL 61822 USA
Service Phone: 217 398-0007
Email: hobbyservices@hobbico.com

(in reply to jsmeed)

Post #: 2

RE: Top Flite Header and O.S. .75AX - 9/12/2007 12:19:47 AM

bigtim

Posts: 2425
Joined: 5/31/2004
From: san francisco, CA, USA
Status: offline

does this mean the muffler mounts are not the same for the 75 as the 61 and 91.
the header will fit both of these engines correct?
another question origonally intended for the 61to91 engines there was a issue with over heating the 91 is it the rubber connector that was the problem or just the size of the whole set up, the reason I am asking is I have a 91 and a club member uses one of the headers for his,but runs his engine rich to keep it cooler and hasn't had any problems.
if its just the connector then I could fabricate a metal replacement as a bridge between the 2 parts instead of the rubber part, what's is the real deal the TF header looks about the same size as a pits style muffler except for the rubber section.

(in reply to Bax)

Post #: 3

RE: Top Flite Header and O.S. .75AX - 9/14/2007 4:11:28 PM

Bax

Posts: 12663
Joined: 4/26/2002
From: Champaign, IL, USA
Status: offline

It's the entire flow-through of the muffler. It just doesn't allow for the volume of exhaust gases of the .91. Also, the header is a bit abrupt where the exhaust exits the engine...the turn is too tight for the .91. .75 and smaller aren't so affected.

Mounting is not the same for the different engines.

Please note that this is not a discussion forum, and posts by other than a Top Flite rep or the original poster will be deleted, per RCU rules. People who ask relevant questions in the same thread are allowed to post, but only a proper rep can answer.

EDIT: We were able to get an O.S. Max .75AX to check, and found that it does have the same muffler-mounting dimensions as the .61FX, so the Top Flite Header for the O.S. .61FX will work.

< Message edited by Bax -- 9/26/2007 9:09:45 PM >

_____________________________

Bill Baxter, Manager Hobby Services/Futaba Service/North America
3002 N. Apollo Dr. Ste. 1 Champaign, IL 61822 USA
Service Phone: 217 398-0007
Email: hobbyservices@hobbico.com

(in reply to bigtim)

Post #: 4

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