Victoria! Zeke's CB175 Build
- Thread starter Texasstar
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Texasstar
Can't is a four letter dirty word
When Ben and Eric were doing 40-45 mph passes with the drone flying above them you could see the suspension problems. I was watching and not videoing. You could see the dustbin chattering because of the lack of support. The way they compensated was to push on the fairing with their forearms and elbows. Bryan Fuller said we could do and easy fix and the producer called Race Control at COTA to see if we could borrow a welder. COTA said we could use their shop but the wind picked up even more so they pulled the plug. Since I don't know what a race bike is suppose to feel like the chattering of the fairing didn't bother me and on the warm up lap I was in that haze of not believing I was riding around Circuit of Americas and was more concerned about warming up the tires and brakes.crazypj said:To echo what Teazer said, you need to 'push down' around the middle of bike so it will be on tank not seat.
You found out why dustbin fairings were banned
You will probably need much higher front tyre pressure if you continue using it plus much heavier fork springs, the air pressure over 80mph is probably loading the front? (do you have any video to compare ride height at speed?)
Do you have any ducting inside fairing to supply air to motor? Just having the openings isn't going to work
No we didn't have any internal venting to the engine. We had he tire pressure at 60 psi but we put it at 41 per the tire rec's.
Zeke wants to put a classic Honda race fairing on Victoria and road race her.
Zeke was videoing on another camera and so was my wife I will post check that video later
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Texasstar
Can't is a four letter dirty word
thanks Teazer app 57 degrees advance.teazer said:With a long tank you will probably want to do that push test on the rear of the tank , but what they said is correct. You are pushing down more or less at the center of gravity and you want it to go down evenly at both ends and come back at the same rate at both ends. That way you have spring rates and damping balanced. It's an easy check to do..
>400 degrees is too high and may be air flow (lack thereof) or too much advance for the fuel. More air usually helps and if it's lean at the top end that will heat soak at the track and get too hot. If it was still pulling hard at teh top end it was probably not too much ignition. How much advance does it have at the top?
Control position is very important to make the the bike easy to operate. That applies to bar angles and lever angles and shifter and peg positions too. It's all about making the controls light and easy and natural to use. GP shift pattern is a good approach on teh track but the trick is getting the lever in the right place in relation to the peg. If the lever is too long, it has to rotate too far to operate, so in that situation use a shift linkage and play with leverage to take out the slack and may the action short and crisp.
Dustbins: there's a reason they were banned in 1957 or somewhere around there and you worked out why.
Front forks: I don't remember what you used but a set of Gold valves and new springs should sharpen that end up a lot. Stock suspension tends to have a lot of stiction and tends to be mushy and still lacking in damping. Thick oil doesn't make much of an improvement which is where those Gold Valve Emulators come in
BTW 99 is more than many race bikes based on that motor are achieving. Congrats to the whole family.
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57 is almost as bad a a Honda 6. I suspect that it's a whole lot less. When you check it, please let us know. Stock 175/200 have a terrible combustion chamber shape and need a lot of advance.
I would have liked to see the plugs after that 99 run to see if there's evidence of overheating
I would have liked to see the plugs after that 99 run to see if there's evidence of overheating
