turbo

[airborneXS]

anybody on here have any knowledge or experience turbo'ing one of these? ive looked around online and can only find pictures and peolpe talking about the fact that theyve done it, no write up on how they did it...was curious to know what i would be getting myself into...gotta rebuild my r1, and once thats done, i wanted to tear the xs down and rebuild everything...ive gone through and rebuilt and refurbished damn near everything except for the motor and drivetrain at this pont...im pretty sure im gonna keep this bike till i die and always wanted a crazy turbo bike....so i figure what the hell, might as well turbo the xs...

[jjz28]

Heck, turbo the R1, that would be CRAZY! I was watching the turbo busas on you tube and that was crazy!

[airborneXS]

my r1 is set up for track, its super fast but its cornering is second to none...i want to make the xs more my highway bike, and the r1 my go out and get crazy bike...the turboxs would make one gnarly highway cruiser...

[Rooster]

have you checked out the UK site? They have done things to XS bikes over there that are quite unbelievable. Check a guy by the name of Mathh he's a dutchman that has a turbo XS that I think I remember had over 200hp. Look at the top of this page and you'll see it at the left in the picture, it's the one with the orange double headlight setup and the intercooler in front of the engine.

[ddragon63]

Turbo a XS??? why would ya wanna do that? Sounds like a way to hate life when you scatter parts on the ground that are hard to find anymore.. my .02

[daveyg]

For it to be effective and not simply go boom, u r gonna need custom built forged rods, and lower compression forged pistons, like in the 8.5:1 range. Then u will need a relatively small turbo, intercooler, probably custom made as well, a custom airbox to withstand the pressurized air, fuel injection throttle bodies, and a way to tune them like a hasport ecu or megasquirt, or other standalone fuel management system. Once u have all that, and have it wired and assembled, and once u learn to tune desired ecu, you will need to purchase a full day of dyno time to get it dialed in. So expect about 2-3k dollars spent if u do all your own fabrication.

[TomB]

Why have all that hassle? just use a carb, no pressurised airbox or wiring. And a barrel spacer to lower compression.

Oh, and say goodbye to gas mileage

+1 on the dyno full day.





.

[crazy steve]

Why have all that hassle? just use a carb, no pressurised airbox or wiring. And a barrel spacer to lower compression.

Using a barrel spacer will throw your cam timing off, now you'll need maybe a longer chain and definitely custom adjustable cam sprockets....

[TomB]

Maths orange turbo bike (top of the page) seems to run Ok with one

They're not as thick as you'd think to lower the compression to a low level. I upped the compression on my 5K7 with copper head gasket and paper base gasket by only 0.5mm (0.020") and made a huge difference. A worn timing chain stretches a whole lot more than that.

[daveyg]

That would work but forged internals will still hold up better to the wear n tear, like pre-ignition etc, that will occasionally occur with a boosted engine. and efi would be my choice as it would just be more efficient, not only for mileage, but also for amount of power capable, a boosted efi system will always make more power than a boosted draw thru carb setup (per cubic inch and boost level. Oh I forgot u will also need to modify the clutch to hold the extra torque, so at least plan on an extra clutch plate and stiffer springs possibly...
I'm not trying to argue, just stating how I would do it if I were to do it myself...

[TomB]

Argue?? nah!, good discussion

EFI would be great, the angle I was coming at it from was Airborne is asking as a complete novice to turbo-ing,
"anybody on here have any knowledge or experience turbo'ing one of these?"

Keeping it simple is how I'd do it when starting doing anything.

+1 on the clutch, I have heavy duty springs in my higher compression bike and it still lets go at 6K rpm

[James England]

As I've posted before in response to questions like this, I would just fit nitrous oxide injection. I used + 100bhp nitrous jets on a standard XS1100 (the one on the magazine article thread I posted). No forged pistons, upgraded conrods or anything. I ran it for a year without mishap...

[daveyg]

NO2 is a good option too. That's what I'm trying to work up on my xs. It'll take a whole lot of pushing the little red button and refilling the tank to equal the cost of a well built, custom built turbo and fi setup... but I'm still planning on upgrading the clutch, just in case...

[jetmechmarty]

Turbo a XS??? why would ya wanna do that? Sounds like a way to hate life when you scatter parts on the ground that are hard to find anymore.. my .02

HMMM... I was thinking that too. Maybe a supercharged Hayabusa would be faster?

[DGXSER]

All I will say is if you stick NOS on one of these beast, be very smart and careful in how strong of a charge you put into it. NOS will grenade the engine also.

I have NOS on my Cutlass and I can tell you it will lay you back in the seat. It is also not as simple as it sounds to get it installed and operating correctly.