under tank heat deflectors

Sep 12, 2012
28
16
Owosso MI
some harley's have a little black heat deflector under the back of the tank. Do these do a good job ? I have seen some guys that only have one on the pipe side, does any one know what part number is for the FW ? Thanks Rick
 
There is not one solution to heat on Harley's. I am using the mid-frame deflectors, but also changed out my header to cermaic coated one from Fuel Moto. Spacers on the floorboards also help. Getting the engine to run cooler is another point. Love Jugs, Night Rider fuel management or fan assisted oil cooler can help.
 
Mid Frame Air deflector

some harley's have a little black heat deflector under the back of the tank. Do these do a good job ? I have seen some guys that only have one on the pipe side, does any one know what part number is for the FW ? Thanks Rick

It's #58002-09A $89.95 pair. I got just the right side off Ebay $15 shipped no nuts or bolts; same piece on 09 up bagger/trike frames except 2017

Here's a pick on my 2015 Freewheeler that also shows DK 2" tank lift; DK lower wind deflectors and DK outlaw 606 Air cleaner with stock Rushmore cover is a real boost in power over stock and relocates the breathers away from intake!

The right side only deflector lets the air blow thru the rear of engine look up DK customs they're supporters here Kevein has ton's of info on his site that helps cool the Twin Cam Engine!
 

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some harley's have a little black heat deflector under the back of the tank. Do these do a good job ? I have seen some guys that only have one on the pipe side, does any one know what part number is for the FW ? Thanks Rick

If you run them on both sides they trap the heat and swirl it around. If you run one just on the right side, it scoops cool air and washes it across the rear cylinder and out the left side, helping the engine run cooler. Cooler engine will be less felt heat for you and a passenger.

The best way to reduce felt heat is to reduce the actual engine temperature. There is a Report at this LINK on why and how to do this.

IMO the last thing you want to do is trap the heat by putting big protectors between you and the engine. That will just make the engine run hotter (which is bad for it) and the heat is still going to finds it's way out and be uncomfortable.

Order Love Jugs Here

Kevin
 
I removed my left side...

I tried the removal of factory air deflector and it does make a difference. I believe I have picture of left side. Works for me I asked Bride if she felt anymore heat she said nope works for her she also was watching the ET on the power vision.
 

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some harley's have a little black heat deflector under the back of the tank. Do these do a good job ? I have seen some guys that only have one on the pipe side, does any one know what part number is for the FW ? Thanks Rick

I found that the heat deflectors helped keep my thighs from cooking and my passenger liked them. But simply moving my right foot out on the floorboard helps a lot too suggesting that the kits to move the floorboards out work too.

Seems to me that the full-boat FLHTCTGs I previously owned were cooler - perhaps thanks to the fairing lowers ducting heat better. H-D said that was the case with Evo - engine baggers. Has anybody done any tests on 8V Freewheelers?
 
I found that the heat deflectors helped keep my thighs from cooking and my passenger liked them. But simply moving my right foot out on the floorboard helps a lot too suggesting that the kits to move the floorboards out work too.

Seems to me that the full-boat FLHTCTGs I previously owned were cooler - perhaps thanks to the fairing lowers ducting heat better. H-D said that was the case with Evo - engine baggers. Has anybody done any tests on 8V Freewheelers?

Unless you are wearing shorts, if the heat from the engine is cooking you without the shields, that engine is running too hot for its' own good.

Here is a LINK to a test report on a M8 Freewheeler.

Here is a REPORT on heat and the Twin Cams & M8's.

Kevin
 
Unless you are wearing shorts, if the heat from the engine is cooking you without the shields, that engine is running too hot for its' own good.

Here is a LINK to a test report on a M8 Freewheeler.

Here is a REPORT on heat and the Twin Cams & M8's.

Kevin

Thanks much! I spend a lot of time in traffic, often stopped for lights, so, yes, things do get too hot. I don't really need more power so it sounds like the 'parade' fans are a good place to start.
 
I found that the heat deflectors helped keep my thighs from cooking and my passenger liked them. But simply moving my right foot out on the floorboard helps a lot too suggesting that the kits to move the floorboards out work too.

Seems to me that the full-boat FLHTCTGs I previously owned were cooler - perhaps thanks to the fairing lowers ducting heat better. H-D said that was the case with Evo - engine baggers. Has anybody done any tests on 8V Freewheelers?

I have, I run RJS Originals on mine with my own front fork air dam, I have not seen a TEMP OVER 306 THANKS TO DK CUSTOMS AND RJS ORIGINALS NO MORE FRIED THIGHS
 
I have, I run RJS Originals on mine with my own front fork air dam, I have not seen a TEMP OVER 306 THANKS TO DK CUSTOMS AND RJS ORIGINALS NO MORE FRIED THIGHS

I also use RJS Originals V-Twin Heat Deflectors... they work to help keep the heat off you in traffic without overheating the engine...

www.rjsoriginals.com

As they advertise... "No more fried thighs!"
 

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