Anyone ride daily in 90-100F and traffic?

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RODOLFO said:
Another thing that heats up, is the rear subframe

Does a light weight rear subframe help?
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Carbon fiber would be good here. Subframe does get hot. Main issue is the tank, you ride long enough and the tank gets hot. Airspace between the seat and the top of the under seat tank with directed airflow would be nice. Ultimately no matter the material you put between the tank and the seat it will still get hot. You're changing the time constant but not the end result.
 
I've just added a heat shield under the rear of the gas tank around to the fuel pump. It's just thick enough when the tank is down it blocks the gap so the heat does rise up. Hoping this helps!
 

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Seth Vo said:
I've just added a heat shield under the rear of the gas tank around to the fuel pump. It's just thick enough when the tank is down it blocks the gap so the heat does rise up. Hoping this helps!
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I like it. Shields the pump itself. So what I did was space the seat up 0.3 inch (7.5 mm). This creates an airpath under the seat. Then I put that reflective self stick shielding on the back of the seat. This really helps as long as you're moving. In traffic obviously no help. I'm thinking a carbon fiber shield on top of the tank under the seat next.
 
Something I found completely by random...the V4R has heat insulation material applied around the fuel pump. This makes much more sense than applying it under the area covering the airbox.

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Makes total sense. If you read the Ducati Performance SBK instructions for installing the full Termignoni it also says to cover the fuel pump area with heat insulation, that's were I got the idea. That's the critical point were heat rises off the header. I don't have any illusion it won't still be hot but hopefully it will help...
 
Less boiling gas, more better. Why this wasn't done on the production bikes is a mystery. I mean, I'm sure I'd solve that case on cost savings...but with how many complaints and time spent on the V4 that could be attributed to hot gas or hot gas vapor issues would have paid for that insulation.

If you look up the part numbers, they're discontinued no longer available.
 
I've covered the entire underside of the tank except the very front with reflective insulation. I note the parts description for the V4R is for reflective insulation. What I like about Seth's piece is its reflecting heat before the pump. So I'm adding that too.
 
I don’t think there’s a difference with that section of the 2022 tank. They appear to be discontinued though. Maybe it wasn’t enough to be effective? Hard to know why.
 
So here's everything i've done and my perceived value. Wrapping the rear exhaust pipes; helps some but I also had to fatten (richen) the rear cylinders 2.5%. So 2 hp? Reflective shielding under the tank around the airbox; pointless not enough airflow under the tank. Refective shielding on tank near rear valve cover and fuel pump; There's enough clearance there so it should help but couldn't tell. Raised the seat 0.3 inch and covered in reflective shielding; should have done this first makes big difference as long as you're moving. Made a flat shield for to replace the right cylinder head cover. This allows more airflow to the head surface and directs some airflow to rear of the tank. This helps. I wonder if just removing the right head shield is better. So I rode about 325 miles one day last week. About 125 miles of that was at 90 degrees plus. Makes it tolerable as long as you're moving.
 
baggerman said:
So here's everything i've done and my perceived value. Wrapping the rear exhaust pipes; helps some but I also had to fatten (richen) the rear cylinders 2.5%. So 2 hp? Reflective shielding under the tank around the airbox; pointless not enough airflow under the tank. Refective shielding on tank near rear valve cover and fuel pump; There's enough clearance there so it should help but couldn't tell. Raised the seat 0.3 inch and covered in reflective shielding; should have done this first makes big difference as long as you're moving. Made a flat shield for to replace the right cylinder head cover. This allows more airflow to the head surface and directs some airflow to rear of the tank. This helps. I wonder if just removing the right head shield is better. So I rode about 325 miles one day last week. About 125 miles of that was at 90 degrees plus. Makes it tolerable as long as you're moving.
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Any photos of what you did?
 
Seth Vo said:
At the track in full leathers is fine for me as your moving. In the pit lane don't let it idle long so heat does not build up.

Challenge is when riding on the street if stuck in stop and go. In this thread few mentioned riding pants or adding liners, Any good reccomendations for this?
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Full leathers and proper undergarments ZX EVO V2 BOTTOM
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