Turbo sv650, build information, video etc.

I noticed after doing a Google search for "svturbo" this SV sight was the first to come up. I've popped in here a few times when I'm pulling my hair out looking for some answers! Looks like the beloved SV's are popular in the UK as well. After learning more about this loved bike over the years and putting now over 70k miles on mine, I thought it a good engineering challenge to build one and see if I can make it a reliable upgrade. Right now I'm mostly done with this project and am currently working on fail safe systems after a 4 dollar switch ruined my day. If your interested in this upgrade project I would suggest first reading through my original build on this sight. There were lots of good questions and comments related. In the video I hadn't lightened the stator yet and have recently sent that out for balancing in Florida. I just got the turbo rotational assembly in from balancing and will have that on by the weekend. The pay job keeps me busy since the holidays have passed and time on this project will be minimal for the next few weeks. It's a hoot to drive and and feel confident with it's reliability once I've finished the fail safe systems. The other personal goal btw, was to get it to pull as hard or harder than the TLS 1000, after some dyno time we'll see how I fared. This is my first blow through system as I mostly and much prefer EFI systems to turbo charge but the bike runs quite normally with or with out the turbo in a boost position. You'll find other links on the other sight for related projects that will give you a bit more info. I did nothing to the engine otherwise and kept it stock. I did lighten the stator as is the best for this upgrade to save the tip of the crank from braking under faster rotational acceleration. Even lightening the clutch basket would help but I'm not going to just yet. Also, wasn't sure how to use the youtube icon here?
http://www.youtube.com/watch?v=VYu1pXI4gvU

[Nicky S]

looks good any chance you could show us some pictures. i did look at SV rider but that's a long thread with a lot of comments.

i cant see how the engine is OEM with a turbo on it and it still runs fine ??

It runs fine as the Pitot hole size regulate fuel bowl pressure thus I don't change the jetting. With the wrong hole size it may run rich or lean. It also has a blow off/balance tube regulated by vacuum that without boost pressure I've basically matched air inlet volume from turbo inlet and balanced it with what it needs to run naturally aspirated. Keep in mind I live at 5500ft minimum and actually live at 6500 often driving up to a local coffee shop at 7200ft. Also why I can run 10lbs with a static 11.5:1 engine. I do use, or will be, using an anti-detonate tank utilizing pressure from the system known as a Crown Injection system. It only comes on at pressures over 5psig. It takes 3psig+ to make sea level oxygen densities. A 3 position linear solenoid operated the waste gate for closed, .028 open and all the way open. Also when the tank gets low on water it kicks the waste gate open at the .028 position limiting boost to no more than 4~5psig. Part of the fail safe systems. I can run around the city without the boost pressure to save wear and tear on component as it boosts up easy just over 3500k after 2nd gear.
The idea is to run in naturally aspirated trying to maintain 14.7AFR and the same or a tad richer under boost. The modifications to the carb are basic but line size, orifice size of Pitot are critical to the balance. I don't usually worry about bottom end components as my experience has been they are usually way stronger than design. Yes, the SV has some crank issues but eliminating some rotational mass will hopefully help and I limit pressure. At sea level I would not run more than 7psig. I push 25lbs in my 1982 Yamaha bike and have for a couple years now. So far no problemo! The rods and pins can handle quite a bit of pressure. What breaks cranks, rods and pins is shock. Heaving downshifts with sticky tires, a 200lb rider and good power will do more damage than under linear pressure apply with a turbo. I'll have to upload other pictures from my other computer later but this gives you an idea for start anyway.

You may as well have been talking in Japanese but it looks and sounds (reads) very impressive...!

Edit:

I can't watch the video on my ipad as you have restricted mobile viewing.

I am a member of a Fazer forum and a guy on there did an awesome turbo conversion and the best bit he made all the parts himself as he was in the industry!

Loving the pipe work through the fairings. Proper industrial.
Would love to see more.
Good work.

Here's a couple more pictures fellow riders and thanks for the compliments, she's been a bit of work. Also here's a different link to the video on Vimeo as even though I enabled for Iphones youtube video wont play on Iphone or Ipod.

And one more. I'll post more recent when I get the stator back from Florida and its up and running again.

Congrats on a great project. Something ive been reading up on a lot recently as Ive owned 2 turbocharged cars and was wondering what a bike with a turbo would be like. Keep up the great work and please keep us posted.

Gizzago Mister

Quick update as I've been driving the bike quite a bit now. Ironed out a few bugs like the electric pump now pushes the turbo drain oil into the case instead of having in a positive displacement set up. Now the diaphragm fuel pump gives up the gost after a good amount of miles. I'm keeping the boost to under 5 until I get the stator back from balancing. I have two engines thus can still run the bike. When it's back I'll run back up to 12lbs and I'm working to finish the anti-detonate tank as well. Detailing it up some as well and have some more painting to do. That's about it for now. I've put about 250~ miles so far.