Thanks for the add

[KiwiCol]

Ade, you a member of the Ironbutt then? 

[grog]

Looking fwd to finished piccys. When young we used to do basic choppers, only used CB 750 Honda & XS650 Yams.Both used to come up good.

[Ade]

Ade, you a member of the Ironbutt then? 

No, just a masochist.

[Ade]

After some research this is the external fuel pump, filter and regulator I am going to try. The pump is a 4bar one for a ford Mondeo, the regulator is adjustable so I can set it to 45psi/3bar. It's vacuum fed but there are spare vacuum take offs on the throttle bodies where the PAIR vacuum tube was removed I guess. The Bosch fuel filter is for a 2l car, I hate the tiny plastic ones. If the pump isn't good enough I have found a similar one that is 5bar and 150lph flow rate. The Bosch 044 style pump that came with the bike is either 300lph, or 380lph, regulating it down to 3bar is still over 200lph flow so it's too much for a stock motor.

[Mr Gee]

Well, you seem to know your stuff. Welcome aboard.

 

[Ade]

I was toying with the idea of GSXR1000 K1/K2 throttle bodies, or early Hyabusa ones for bigger butterflies and injectors. I'll keep that on the backburner for now and use the GSX1400 ones. I like the look of the TTS Supercharger kit but don't think it will fit in the tiny hardtail frame. It's not worth fitting the bigger throttle bodies on the standard head from what I have found so far. I like getting a vehicle to be the best it can be with standard motor and injection. I have a 105PD Seat Leon 1.9 TDI, I fitted a Pipercross panel filter, had a 2 1/2" bore CAT back exhaust made, then had it set up and Dyno mapped. Went from 103-105 bhp and 250 ft/lb torque to 152 bhp and 362 ft/lb torque, made it fun! I have a 2004 Z1000 that I fitted a Pipercross air filter, did the airbox lid derestriction mod and made a 4-1 exhaust using ZX9R headers I modified with a 60mm link pipe and 60mm straight through end can. That was remapped to 126 bhp and 69.24 torque at the rear wheel, factory figures were 127 bhp and 70.5 torque at the crank. It will be around 141/143 bhp at the crank now. The standard Z exhausts are 16kg to 18kg, my 4-1 is 6.5kg.

[Hooli]

As I understand it the TB spacing is wrong on GSXRs to fit our engines. People seem to prefer to bore the 14 TBs out & make new butterflies.

[Ade]

As I understand it the TB spacing is wrong on GSXRs to fit our engines. People seem to prefer to bore the 14 TBs out & make new butterflies.
[/quote
Thanks, do people remove the secondary electric butterflies when they bore out standard throttle bodies? Will GSXR butterflies, or Hyabusa ones, work?

[Hooli]

Sorry mate not sure on the details as it's not something I've fancied doing. I do know some people have removed the secondary butterflies & needed a remap to suit, but then I'm sure you'd be doing that anyway with all the other work.

[Ade]

Sorry mate not sure on the details as it's not something I've fancied doing. I do know some people have removed the secondary butterflies & needed a remap to suit, but then I'm sure you'd be doing that anyway with all the other work.
[/quote
Yes it will be remapped and set up on a Dyno.

[Ade]

As I understand it the TB spacing is wrong on GSXRs to fit our engines. People seem to prefer to bore the 14 TBs out & make new butterflies.

After doing some more research the GSXR and Hyabusa throttle bodies won't fit. I was talking with someone who swore blind the GSXR 100 K1 and K2 and Gen 1 Hyabusa ones were the same spacing as the GSX but they aren't. The GSXR/Busa ones are evenly spaced where the GSX1400 are set like twin webber carbs with a bigger gap in the middle. That's why I spend time doing the research. Still I haven't looked at the head yet, the 4 cylinder might be evenly spaced and it's the rubbers that are angled to fit the offset TB's. GSXR rubbers to match the TB's might be an option. I have found a set of GSXR TB's on market place for £50 might be worth buying for the bigger butterflies and injectors.