OH MY F&*CKING GOD!!! Seriously, if I had a FRACTION of that knowledge I would be confused. Incredible!!

 

For sure. A handful of you guys are simply alot better at this kind of thing than the rest of us

 

So when do you plan on selling a turbo kit for the Shawks?

I am sure you would have a few buyers!

 

Thanks for the compliments, but wait that it's in full tune, I still may be an idiot that turn a goon running bike in a pile of junk
I'll sell the bike as is when I'll get tired lol
Seriously my bike is a bit bastarded, using used parts, or whatever I could find, quite hard to sell junkl to people.
I have Nissan 240 SX throttle body, chopped up malibu fuel rail and regulator, BMW relays, 5,50$ EBAY intercooler, local classified K-03 trubo and BY from an Audi A4 1999.

And I work my *** off splicing fiber optic cables, I highly doubt I could find the time to build another, but the good news is that I have the data and I'll help the next fool that will attempt this

 

now you should have entered THIS in the VTR of the month contest. I would have voted for it. Such a cool project. I think my favorite pic is the one with all the wires coming/going everywhere. About that time into the project I would have **** myself. Really great work sticking to it.

 

Fantastique
You have more talent in your little finger than most people will ever have.
It will be insteresting to see what the final version looks like if and when you get a chance to have a go with the rest of the bike.

 

Thanks a lot for the comments, that cheers me up. Thanks to my girlfriend that let me spend a lot of my time in the garage and fed me when I came back starving(thanks to her for the clock she bought me )
I wanted to finish it off before entering the VTR of the month, I want it to be in the final state.

 

I wouldn't be confused, id be down right dangerous!

Mate, Well done... i bow down to you good sir!

 

Many compliments Gboezio.... ;-) It's a great work!!!!!!!

Never think about at a volumetric charger?

 

Grazie mille !!
Yes I considered it, but one of the mods I wanted was to redo the exhausts to gain ground clearance and I'm turbo crazed
A supercharger drive system could be possible either from the flywheel bolt hole or from a cam bore hole.

 

Ehehehe... it was amazing!!

If you have some idea about a small volumetric charger...........

But I think each a charger, the original carb was'nt good and need injection at the same of the turbo mod's... right?

 

Yes carbs, in my opinion are no good to detect boost, but on a race bike, if you jet richer, it could run ok off boost but very rich and become ok at full throttle, but it would allow low pressure like 3-4 psi and would pack the engine with carbon if held too long at mid throttle.
A possible solution could be a piggyback controller that fire two extra injectors in the airbox that enrich the mix under boost, but it become almost as tough as converting the whole thing to EFI, so I went the EFI way.

 

so when and where do we sign up for school

 

Excelent thread pal.
Some nice work going on there.

 

Haha insanity school, why not. Can't wait for spring to turn up the boost and ride the thing.
Thanks again for comments.

 

You guys that live up north shouldn't be allowed to start projects before winter and then make us wait

 

Updated Pics?

 

It just collect dust for now, so nothing have changed really, I will post as soon as I have something significant done to it.

 

Hmm, can't wait till then.. .

 

bring it to texas got a spare room nice garage plenty of sunshine no snow and the track at college station 45 min. away. did i mention it was 70 today looking forward to your spring

 

wow great work!
i'm really impressed, i'll have to see that bike when the sun comes out!

 

I hope to have some spare time during the spring to get ready for the riding season.

You guys in texas are definitely lucky to have weather like this !! I'm freezing over here -25°C today again
Thanks, are you from freezeland too ??

 

love the turbo, id like to put something like that on my hawk.

 

I love this thread!

 

im not sure if its been mentioned but most carbs wont do well over around 4 psi anyways, things will start to break inside of them so guys would run a blow through carb setup like the old gn's had. i built a turbo car in the past and it wasnt too bad being that it was efi. and ive toyed with the idea of running a small turbo on one of my race quads and both being carbed has detered me from that. my idea for it would have been a blow through setup to go under thecarb, maybe some large one way valve of some kind t keep boost from bleeding out of the carb and then for fuel i had a few ideas, one was to use a nitrous fuel solenoid and have it activated by a boost pressure switch, say at 2 psi and it would be a bit rich but once it hit say 5 psi it would be good enough. another was the same idea as above but a dual solenoid and switch setup, one to add fuel from 2 - 4 psi and one to add fuel above that. would have been a mess but it would have probably worked. the hardest part would have been setting up the blow through setup on the carbs. but you did a great job on the build. another thing ive seen is a guy in a first gen honda crx, he used a breadboard and then built his own fuel management system out of it, boost would come on and it would open up extra injectors and dump fuel. it was pretty neat. oh and both of my above mentioend setups would have needed their own fuel supply, t fitting off the tank through a fuel pump or something along those lines

sorry to thread jack i jsut get excited seeing different things like that and thought id maybe plant some ideas into peoples heads if they were interested in doing something similar

 

one more thing i wanted to add, again i havent read the entire thread so im not sure if its been posted. but arent the aussie superhawks efi bikes? would it have been easier to do an efi setup from one of those, and then like on an efi car run an fmu on the fpr and have it dump more fuel through the injectors as the boost increased?

 

Nope, no Superhawks were ever EFI from the factory.

The Varadero uses the same engine and is EFI in later years, but that is the closest EFI bike out there. (and it is retuned for less hp)

 

Well I thought of a way to boost carbs, on a single cyl engine.
Here's the idea, a FCR carb at the stock location, close to stock jetting, float chamber vented to plenum, fed by a fuel regulator 4 psi higher than plenum pressure.
Right before the first carb, a second hacked CV carb without throttle, with a way stiffer spring forcing a modified slide that does not get in the throat way but only actuate the needle, this carb will just sense pressure and open the needle while the pressure push the diaphragm up against the stiff spring.
Just thought of it after an endurocross race, I figured that those bikes with almost no electrical power would be forced to run carbs if turboed.
There is a simpler way for sure, I just don't know, maybe some extra jet that could be opened mechanically trough a diaphragm like the one on vacuum secondary Holley carbs.

 

I think the carb option would work, they have gotten better, it is harder to do. (from me being an efi tuner) but it can be done, just have to option the correct carb, I dont think it would be necessary to make it as complex as u mention in your post, The flat slide mikuni style rely on nothing but a main jet, I wouldnt use CV carbs. A holley is hard to fit but has much aftermarket for upgraded needle and seats/ floats also power valves, This is a big advantage engine can be jetted sufficiently a tad rich with big main jets and top end can be supplemented by the power valve circuit,

 

That would do it for low boost, for high boost apps. the carbs would need a boost sense/enrich, it could be a very simple device, but since it's totally useless on NA apps, it will not be found on any side draft carbs that I know.
Drilling an extra jet could be an option, fitting a boost acuated mechanical valve is another story, but nothing as hard as tuning a carb under boost, pitot tubes, etc...This would make the only viable solution...mechanically.
EFI fix it all but I realize that it's not for everybody.