another itb
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Author:  dominator [ Fri Aug 30, 2013 1:25 pm ]
Post subject:  another itb

Im collecting parts for a new n/a engine which is gona need a larger set of itb as the others I made just wont give enough air for the power figures im hoping for
So far iv sourced a very cheap set of busa itb, complete with air box and rubber conectors, the flange il be using is one of striders very nice flanges,
I think its the best flange you can get if your looking to do this sort of setup


Author:  RP91gt [ Fri Aug 30, 2013 7:50 pm ]
Post subject:  Re: another itb

How do you determine the flow rate needed . In other words comparing the busa head flow with the G13b. has any one done a comparison as far putting them on a bench. :?:

Author:  dominator [ Sat Aug 31, 2013 1:35 am ]
Post subject:  Re: another itb

:lol: I havnt determined any flow rates, the itbs I have now are 36mm dia which will be fine for a well built engine but iv recently met a race engine builder quite local to me, I bought some parts off him for this new engine ( this will be my 3rd built engine) and it just happens that hes raced mk1/2 gtis for years and built the engines for them so im just going from his advice atm, the 36 wont be enough for say 170 hp@ 9k, which are the sort of numbers im hoping for, so I found the biggest bike itb I could, I dont want to get carried away by claiming il get those sort of figures but with a bit of his help and knowhow (his best gti engine is a 1.5 g13b putting out nearly 200 hp! and he worked at hart engines (f1) in the 80s and for nissan in btcc) im hoping to get close
But I doubt this engine will be finished for years as it going to be very expencive!
Good things come to those who wait :wink:

Author:  miniswift [ Sat Aug 31, 2013 4:05 pm ]
Post subject:  Re: another itb


Who is your engine builder?
I may have spare set of ITBs off bike with 38/40mm. Let me look into it.
If you want, I will send a set down to you. Bill Falkners engine is good for 180-ish.
I will be interested to know as I got +.5 Cultus off you, so I can use to make NA if I get bored as well.

Author:  dominator [ Sat Aug 31, 2013 4:40 pm ]
Post subject:  Re: another itb

Hi atchi, his name is jason, he runs hellier performance in salisbury, I will be building the engine but il defo be getting them to do all the machining work etc
I already have the itb on-route, hiyabusa 99-07, complete set, only $150 shipped on us ebay, agter 08 the came as 2 pairs of bodies so if I have to mod to get the spacing right it will be easy
On another note did jerry ever make some of those special cyl heads?

Author:  instant_shine [ Wed Jun 25, 2014 7:43 pm ]
Post subject:  Re: another itb

Any progress on this? 8)

Author:  dominator [ Thu Jun 26, 2014 4:23 am ]
Post subject:  Re: another itb

Sadly not yet
I had to scrap my old gti and i bought an ex tarmac stage grp n gti, iv stripped it of all the parts i dont need and hopfully putting all my good parts on that soon, once its up and running i can start on some of the other projects i have planned for the swift :-)

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