Turbo a v-twin...

[Hahadumball]

*takes cover*

how possible ?

i know honda put a turbo on a cx650 and ive seen 1 other vtr with a turbo...

any idea how difficult this would be to set up? from what i guess the pulses would make it a bit of a shitter to do but anyone whos actually done it able to offer advice?

I should imagine this wont ever take off as in all honesty i can't be dealing with spending hundreds of hours trying to set it up properly.

few t15s on ebay for not much, 80psi fuel pump at around £80 and the rest is fabrication of the pipes for 2-1 and odds and sods relating to carb pipes so not massively difficult.
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Fin: no matter how much I look at It I can't understand what was going through my head, all I remember is going about 80 and redlining it to stop it seizing.
360 Deg... Five 1/4 turns. :- Teflon-Mike 18 Jan 2015

[Old Git Racing]

Think the more popular route for V twins is supercharging. Look for 'Sam Matthewman TLR1000' on Google. You wont need more than this. Same should be relevant to a VTR.

OGR
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2022 Tiger Sport 660 2019 Street Twin 2003 K3 gixxer 1000 1998 Srad 600 track hack

[stevo as b4]

People have quite successfully turbocharged most. Things including singles, so there's no reason or disadvantage to blowing into a twin. People have a pre conception that only an IL4 can be any good for turbocharging, as it's all most people have ever seen, even with cars too.

Fabrication of hot side. Pipework and manifolds would be the biggest expense I would say if not doing it yourself. You need to think about what you want from the project too, and expectations, as it gets expensive to re do things or change engine spec during or after the build.

Pete, Chri5, and little red machine are the ones to ask about the specifics, and hardware specs etc, along with materials specs and all the supporting changes and ancillaries required.

The T15 turbo sounds way too small for a single unit though, as you need something that can keep up with the engines airflow capability at 9500rpm as a minimum if not exceed it, and you'd need to size the turbo to be efficient and give useable characteristics too.

Packaging on a transverse V-twin engine could be a bit of a challenge depending on what compromises you want to make.

There's no reason with the time and money not to do it, but it won't be a simple hook up a few pipes to a scrapyard turbo and be sorted job either.

[sickpup]

[stevo as b4]

I agree that a 90degree V-twin has a less even firing interval than a four cylinders or an IL6.

But while someone mentioned supercharging with a compact rotrex style blower as being ideal for packaging in a sports bike V-twin, you can obviously turbocharge it successfully too.

I don't think OP is going for a factory developed install with turbo life for X amount of thousands of miles being a primary objective. But then again uneven firing intervals do not stop manufacturers making successful turbocharged twins, Triples, and four cylinder engines with unequal length exhaust manifolds that have the same effect on exhaust pulses.

Packaging the turbo on a VTR would be my biggest concern. The side mounted radiators, and position of the rear cylinder mean in my mind that the only place you have left is right under the front cylinder, hopefully with enough of a run for an oil drain into the sump, and the rear exhaust would have to be routed to feed under the engine and have a very different length to the turbo. Clearance for the front wheel would be an issue too, unless you kept everything very tucked in.

[MCN]

Unless you can make the turbocharger less introosif


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Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.

[Pete.]

You can do it. You have to be careful with detonation so keep the boost levels sane but there are plenty of examples about. Turbos supply torque which a v-twin isn't short of in the first place so there's no real need for mental boost to make a mental bike.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[talkToTheHat]

Isn't supercharging sportsters some kind of fashionable thing amongs harley owners. But getting that kind of work done could buy something proper quick so why would you unless you feel it excuses wearing proper gear on a tractor?
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Bandit. does. everything.