Gixer1460

That's a new one on me! I'm aware of dead head fuel systems, generally on NA systems and they run at a set regulated pressure (around 3 bar) But running a pump dead headed permanently at, say 5-6 bar pressure, to cover 2-3 bar boost, not only puts huge load on the pump, i'll overheat the fuel and it would likely be almost un-mappable due to pressure in rail pulsing from 5 to whatever pressure, due to injectors variable opening times. This doesn't sound like a sound prospect - all to save on a plenum air pressure tapping and a boost referenced FPR - a tried and tested solution!

'Tain't a knob and we do - GS, GSX, GSXR !

I think sub 9.0:1 CR is waaaay to low for use with E85 which is as close to methanol as anything available and that needs compression and rich AFR. Query - if stock Bus pistons have 'correct' ht for your combination why do 'Bus turbo pistons' not (which should be drop- in's) ? Why are they taller and so, even in a Bus motor, INCREASE the CR not lower it? I'm confused! If it is, what it is . . . . . i'd be tempted to spacer plate only 1mm and skim pistons 0.5mm and get squish to 0.8 - 0.75mm (unlikely to over rev a blown motor & stretch rods!) and 9.5:1 CR if E85 is in constant use. Hell that CR would even work with regular 98 super unleaded if boost was moderate!

@Captain Chaos- you forgot 'its Hideous' . . . . . . . . and parts donor for what exactly?

Strictly not an ECU but ignition / timing unit. That one certainly ain't an 1100 K, L, M or M. Not sure if GSXR at all?

How did you get to 'reciprocating weight'? All the discussions were referring to Sprung and unsprung weight - quite different!

Not a very common mod a) due to the problems you've outlined but also b) the likely overheating issues due to the lack of barrel finnage! Also if oil cooling capacity is increased the overall engine oil flow could be compromised due to increased flow resistance through bigger coolers. I did 80.5mm GSXR pistons in a GSX Gorilla block on EFE bottom end and GSXR head for a drag race motor - it worked but was a one trick pony !

I'm guessing the US market for these bikes isn't as strong or as popular compared to Europe hence no interest, and yes you will have to 'virtually give it away!' Also gonna have to factor in freight costs if selling to Europe and that won't be cheap either which will hit sale prices! So, unless the parts are very rare or exotic, its a buyers market in terms of returns!

WOW - you are on the ball, reply after 5 months and for the benefit of the OP who only hung around for 7 days, not been back since!

To best of my knowledge, those tubes are cast in to the bodies so you won't find a part number. Bending a new one isn't impossible but the end bends will often kink which makes them useless!

What is? Bolt on sprockets or using ss screws on aluminium without washers? Explain pls?

Tape measure and straight steel bars can check everything - helps if swingarm is fitted. Chalk line on a good flat floor, centre frame over it so headstock and SA centred and square, drop plumb line from headstock bearing / shaft to line, measure from headstock to SA mounts and axle blocks, fitted forks would help show any headstock twist.

I fitted the std. 'M' curved cooler with a R6 fan between the seat frame rails on my 1460 GSXR. Fan wired through relay & thermo switch in sump.

You aren't the majority, you (maybe) are the exception!