Turbo

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Agate: the water cooled 1125 would handle a turbo much better than the XB motor would but in general, v-twins do not spool turbos well due to the intermittent exhaust pulses. An inline 4 has much more consistent exhaust volume and usually a much higher redline to work with - not to mention, more aftermarket engine internal upgrades to handle more power.

Look at my track record and all my turbo toys, I spent several weeks researching this very subject after purchasing my 10' SCG. If doing a turbo system on an XB was anywhere remotely close to a GOOD idea, I would have done it long ago.
 
^^ i dont think a small turbo pushing 2-6 psi with correct maps and a intercooler with a water drip system to insure the coldest air possible would do much harm, maybe do an engine refresh every 15-25k miles. maybe even run a little oil in the gas.
 
Sled: You're right, a properly designed setup with a good water injection system on 6psi would work. Here are the issues:
1. That would cost $2-3K minimum if done right.
2. It would only add ~35hp and you would get used to it real quick and turn the boost up (trust me, you would)= blown motor
3. In the end you'd still have less power than an 1125 or other "race" twin.

You'd be miles ahead to enjoy your buell for what it is (power wise).
 
why not make it 15k? then you could do a huge build and push 10psi safely and throw in a 6th gear. hit 170 on the hwy (oh wait were talking about a xb :(.)
 
I have a xb9s and I'm wondering what turbo would be best for my bike, and what maps to use.

Here's an idea....Buy an XB12. Problem solved. Faster bike. Less expensive. Retained reliability. It would be like modding out an r6 when you could just go out and buy an r1 for about $1000 more. I just dont understand. Now obviously the gap in power between the r6 and r1 is larger but the same theory holds true. Buy the bigger bike. Save yourself the headache.
 
If doing a turbo system on an XB was anywhere remotely close to a GOOD idea, I would have done it long ago.

Agreed. As well as everyone else having proof of reliable combination , but there aren't any


GOduc, why not.
and not sure about your engine skills, but it would be smart to make sire your internal components can support forced air induction, or just go right ahead and slap one on your bike and let me know where you end up. Supercharger, and trubos are icing on the cake. Get your ingredients in the oven first.

Engine building 101
 
not sure about your engine skills

Ive built a few boosted engines, although they were all inline 4 watercooled engines for cars. Im not saying slap on a turbo and go, although thats what the aerocharger was for the tubers.

I agree on making sure the interal components are up to the task before doing so. Although if someone wanted to do a low boost turbo set up i dont think it would kill the engine right away. Although i see no point in doing that for the time and money

I would like to see what the factory turbo engine was, pistons, beefed up crank etc.

I wouldnt ever turbo my nine motor, i plan on doing a mild build on it.
 
It sounds cool,but what good is all the xtra power if the bikes not set up for it.
I raced my xb12 at the strip and had to keep rolling off the throttle to keep the front end down almoast all the way down the track.
if I had a 20-30 hp nos I could have used it on the last 50' where it starts loosing power but it felt like I was killing the v twin as it was.
 
Well I decided I'm gonna get an 1125r found an 08 down the road that only has 1100 miles on it. Now all I need to do is sell my my jeep and xb9s
 

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