Project; Turbo GSXR Slingshot

[PAPPACLART]

Nice.

My Father in law owns Gary Rothwells ex "Showtime" stunt bike, the GSX1100 that briefly held the world wheelie reocrd at 190mph. At max boost it makes close to 300bhp though he runs it mostly at around 215bhp as it is more than enough for the road.

I never got to ride it but have been on the back a few times and yes it is pretty insane.

I ride a more modest 97 TL1000S with about 120bhp at the rear. hehe

 

[VFR_KID]

After reading this thread I was messing about on youtube and found

i cant even laugh its so stupid

 

[Danm54]

Haha, awesome! Dont know why im messing around then, just bolt the turbo to the end of the exhaust and get a bit of ducting tube!!

Think he needs more exhaust gas or a smaller turbo though....

 

[VFR_KID]

Haha, awesome! Dont know why im messing around then, just bolt the turbo to the end of the exhaust and get a bit of ducting tube!!

Think he needs more exhaust gas or a smaller turbo though....

Think this would win on a drag strip

 

[Danm54]

Ordered some injectors last week, got 4 650cc Bosch injectors on the way from America, EFI is going ahead

Taken a week to get a battery!
I was a little fussy on how big it had to be though....

So this is where its going, after much thought and costing up tiny batteries ive gone for an AGM battery, will fit in the tail nicely and hopefully leave enough room for everything else, time will tell.

Pics

Just needs a few ritets and mounting properly, hopefully the long side tags will hold the solenoid and relays etc...

 

[Dogbreath]

Haha, awesome! Dont know why im messing around then, just bolt the turbo to the end of the exhaust and get a bit of ducting tube!!

Think he needs more exhaust gas or a smaller turbo though....

You can't very effectively turbocharge a conventional two stroke (i.e. piston ported) engine. The amount of back pressure the turbo would introduce would ruin the scavenging. You can supercharge them though, in conjunction with direct injection.

 

[Danm54]

More work today, finished the battery tray for now, really need to make an order for a load of stainless button/cap head bolts etc!!

Still enough room for a nice flat under tray.

Made up the first mount for the oil cooler too, just didnt take pics

Also, a new toy arrived this week, air shifter!

Will mount the compressor in the tail probably behind the battery, and the bottle in the swinger, should look nice once cleaned/painted up.

 

[Danm54]

Right, the bike is booked in at WarpSpeedRacing for May to have the injectors fitted to the plenum, a fuel rail made up and hopefully a few trick bits for the air shifter.

Also getting a price for having a rad made up to fit the space ive got, see how pennies go....


But for now, I have a set of throttlebodies off a Ducati 749, these are 53mm each and ill be using just one, the one with the TPS. Will take the plastic off the air intake side and obviously wont use the injector either.

Also have a box of goodies! Anyone guess whats in there?

More pics tomorrow

 

[Danm54]

Toys!!


Microsquirt ECU and loom

Trigger wheel, Air Intake Temp sensor and Coolant Temp sensor

Ignition Module and Boost/MAP sensor

Datalogger and wideband Lambda sensor

Roughly placed where they'll all fit, got the air shifter stuff in there too.

And the throttle body in place

 

[Dogbreath]

Why are you putting the throttle on the intake of the turbo (i.e. draw through instead of blow through)? This is going to give the oil seals in turbo a hard time.

 

[Danm54]

Why are you putting the throttle on the intake of the turbo (i.e. draw through instead of blow through)? This is going to give the oil seals in turbo a hard time.

Its a carbon sealed turbo so is designed for draw through

Only difference on my setup is that the fuel is being injected in after the turbo instead of before like the conventional draw through carb setup.

edit; Ive gone for a draw through throttle body as I want to keep the bike clean looking and I hate the look of a turbo hanging off the front of the bike, so it has to go under the tank and there's not enough room for a blow through setup and a turbo under there!

Plus draw through sounds awesome!

 

[VFR_KID]

Needs NOS LOL

 

[Danm54]

Needs NOS LOL

Haha, would be awesome but a pricey addition, and going on the amount of BHP im expecting this thing to kick out I dont think it'l really be used much..

 

[wazza300]

just want to say this is great dan,keep at it,your certainly a whizz with the welder!!

 

[Danm54]

Argh! More changes are on the cards now!!!!

Its a good one though....

Whilst chatting to the guy I bought the tb's off he suggested using the original velocity stack and an injector for water injection, that planted the seed and it actually works really well!

Its kind of in the way of my knee but the tb will angle forward enough, and if all else fails the technology is in the shed to make a shorter velocity stack.

Will have a read up and see if I can run the water injector off the ECU, that'd be mega! Will likely just use a mechanical setup though.
Could use the space in the swinger as a water tank and mount the air tank to the inside of the swinger, was originally thing of using the swinger as an air tank but it'd be better as a water tank.

Im trying to get bits done without spending too much money untill I know how much WSR's bill is going to be, so im a little short on updates!

 

[Danm54]

just want to say this is great dan,keep at it,your certainly a whizz with the welder!!

Im not whizz with a welder, Im fine on steel with a mig but all the welding on the build has been done by a pro tig welder.

 

[VFR_KID]

excuse my stupidity but why would you be injecting water?

 

[Danm54]

Its only a fine mist of atomised water, it cools the intake charge (especially useful as im not running an intercooler) and prevents knock/pre detonation. Good for easy HP gains if the setup is right.

Its not really injected either, its sprayed towards the intake and is drawn through with the combustion air.

 

[VFR_KID]

cheers. now makes sense

 

[Maz]

Wow a lot of work, and looks like it's coming on really well!