heat sheild

[first timer]

anyone do this?

http://yoshimura-shop.netmove.co.jp/ap/dtcat?p=6/7/8&s=39/115/120&l=en&t=/c_carb1_e/c_carb1_e/c_carb2_e/c_carb3_e&d=326

[txironhead]

I was looking at that on their Katana.....cooler air = improved combustion = more power. Ask any Euroracer with an intercooler. Seems like a good idea. I was actually thinking about making one out of sheet metal covered in DynaMat or something similar. Maybe this is a thread for tech tips?

[first timer]

it's not a tip till it has been done and proven

hench this area

-ryan

[Mysuzyq]

Too bad they don't have pricing info on the site....not sure I have a yen for it . BTW, those 40mm Yosh Mikuni's look really cool!

Tony.

[Todd Horton]

I made one of these for my 1150, couldn't tell any difference. TH

[scotty]

I made one of these for my 1150, couldn't tell any difference. TH

Possibly under steady racing conditins for hours some benefit would be had?????

[Nerobro]

it looks cheap to do. :-) I'm all for trying it out. I'm fairly sure this is a very marginal benfit peice, but if it's cheap/free.....

[txironhead]

I do know that cooler air=more power. The question is, will the heat shield cool the air (or keep the carburetors cool) enough to benefit? I definitely think a heat shield covered in Dynamat or some other heat deflecting/reducing material would make some difference, if only a minor one.

I've always wanted to come up with a simple "snorkel" air intake for an inline four. It makes sense that if you can take the cooler air from the sides of the engine instead of the warm/hot air from behind the cylinders it would improve performance. I've often heard the argument that having the carbs on the front of the engine and the exhaust on the rear would make more sense, but I've caught enough rocks on my exhaust manifolds to know I'd rather weld an exhaust pipe than replace a carb....plus I've heard a company tried that (I think it was Triumph) and failed miserably. A "ram air" intake would work well, especially if you had already eliminated the airbox. Some PVC, a little plastic welding or epoxying, and you'd have it. Of course, trying to incorporate a filter in the process would be interesting (inline?) and it would definitely be interesting to look at. A person with a tubing bender or some appropriately sized exhaust pipe could even end up with chromed ones.

Better be careful, next I'll want to chop the megaphone off of my V&H's and weld on some Lakewood pipes.....

[scotty]

Here is my solution to improved and cooler air to the carbs

[oldschoolGS]

Heat shields were common on early race prepped GSXR bikes. They are designed to insulate the intake system from excessive heat due to sustained high rpm racing.

Not very practiacal on a street machine. Looks cool though. The carbs look like Keihin FCR's. Very nice indeed.

Ride On, Ed.
1983 GS750ED
2005 GSF1200SZ
1992 Duc 900SS

[Todd Horton]

I put a heat sheild on my Kaw H2 and it made a difference. I agree that wind blowing heat off the motor gets recycled back into the carbs just compounding the problem. My H2 would get slower the hotter it go, I never noticed it on my 1150 even when running it at the strip, go figure

[bwringer]

One the flip side, wouldn't the heat shield reduce airflow around the engine and thus raise engine temps? That might be worse...

Personally, I'd want to stick a thermocouple in between the #2 and #3 carbs for a couple of laps to find out if this is a problem worth solving.