heres a concept i drew up for this one. i wanna make it with scrambler style pipes that exit under tail. might make it so it goes 4-2 on the side oil tank built into the gastank maybe, might look for another location for that not thrilled about that one but i may still do it. have some ideas for that
Trying to put the exhausts up high will be a nightmare.
There will many more problems. When some motorcycles have exhausts
coming out of the rear of the motorcycle it was because the engine was a 90ยบ V twin and two of the exhausts were already facing to the rear.
even on those it caused heat shields to be added front and rear and then the electrics had to be moved to under the seat. That caused the electrics to get hot under the riders a$#@!
The VF1000 R had that problem.
Some bikes that had the exhaust come out the rear under the seat had to have special heat shields and cooling ducts built into the seat. Still got hot.
Why do you think Honda STOPPED using the V4 engine? Same reason.
They say it was because the engine height was too high but that is not true because they already used dry sump oiling on the CB750! No the real reason is because EVEN if they got the engine lower in the frame of the VF series, then there would not be enough ground clearance for the front two exhausts. And since the frame had that stupid design they had no access to the sides of the engine and they could not put the exhausts there. And on the later bikes they had to put the radiators on the sides of the bike hidden by a fairing. Just one problem after another all because of the exhausts.
But if you just have to have the ass end of the bike up in the air with the exhausts sticking out - go ahead!
BTW....Someone already put the exhausts through the frame on a CB750 under the carbs (fire hazard deluxe), and they the had to move the battery and the oil tank,wiring and had even more problems with heat under the rider, but they did it. Then they had to add a metal heat shield between the carbs and the engine because the fuel in the carb float bowls was getting hot and expanding and over flowing.
Still going to do it?
Oh and the exhausts had to be wrapped all the way along.
One more thing...
Another guy put the cylinder head on backward so they could have the carbs facing forward and exhaust going through the frame and out the back. But then what do you think happened? You guessed it, the carbs will be too close to the frame and front wheel. And of course the cam chain tensioner.
See what I mean.
And I know what its all about ...Style. Forget that .
Do what makes sense. not what is in style .
Racing bikes have always been built to make sense and work well.