So being a big C10 guy when I use to live in NC, I had a fleet of square bodies, ( the new love for my shadow has made the wife way happier cause the cost has been a huge difference lol) But always seeing custom stuff and getting ideas here and there. I feel like ive seen it a few times and more often on street bikes, but how often are guys tossing turbos on their choppers? I Love seeing frankenstein combinations and would love to check out more builds if anyone has recommendations?
Search
Forum statistics
- Page views (24h):
- 674
- Page views (30d):
- 14,902
- Topics:
- 649
- Posts:
- 1,956
- Members:
- 1,152
Newest members
Most liked authors
Boost Taboo
-
-
TJ Admin Staff memberModeratorMember who has the rights to delete posts, and ban members form forum if they violate the rules.@Brandon Walker nothing is taboo! but the issue with boosting any of these carbureted bikes is the gains are modest at best, it requires an insane amount of mechanical expertise and knowledge and really solid tuning. Additionally, these engines are not designed to withstand any kind of sustained boost. the oil pressure system isnt going to be able to keep up with changes in idle. Its a severely costly undertaking, considering all the parts youll need and the custom exhaust youll have to design.
over the last 20 years ive seen a few guys try this. doing it on a dual carb bike is a total bitch because of how the honda shadows dual carb bikes are set up, saw one guy attenmpt it for about 3 years straight and he gave up. ive seen 2 folks try this on a Vt600, one guy, same story, he gave up after 5 years and put the whole bike back to gether and just enjoyed natural aspiration, another guy, got it "running" but it would never sustain idle, and that guy was a big motorcycle drag racer so i think he had the best chance for success but ultimately he ditched the project.
another thing to consider is the fact that the extra heat from the boost will cause the rings to expand, when that ring gap closes, the engine will seize in short order! so youd have to expand ring gap.the fuel pump would def need to be upgraded, and youll need a fuel pressure regulator with a boost input so that as the boost rises, the the fuel pressure to the carbs rises equally.
theres no extenral oil lines so you have to try and tap into one of the galleyways for the oil and try to figure out how thats gonna be maintained.
another issue youll have to overcome is thathe pressure in the float bowl is too high and this cuts off fuel flow. so again an efi throttle body would be superior. yes you can have a fuel pump that matches the boost but its a styoupidly delicate dance and you still have to contend with the slide and its diaphragm. and youd need lower compression. and ideally forged pistons, maybe make a spacer for between the case and the cylinders? Expensive custom machining would be needed. i could go on but after almost 2 decades of going over this, its a massive expenditure of money, engaging with this idea on an efi bike would offer way better gains, and the probability for success would go up exponentially.
but if you have unlimited money and time, go for it! knock yourself out and have fun! but i do feel thjat theres a lot of other things one could dump money into and have a higher chance of actually succeeding.
You could also go get a honda CX500 which was a turebocharged engine and smack it into one of these cruiser frames! it is shaft drive so that poses some issues but far easier to figure that out than reinventing the turbo wheel!
if some crazy rich son of a bitch has actually made a streetable turbo vt600, id love to see that!
turbos on choppers isnt unheard of but it takes a lot.
Please login to reply this topic!
