I have upgraded to the N10 gearbox and drive shafts plus am also using the N10 front suspension.

I will stop posting in this topic(Beings its for KB10 junk NOS) I will start posting in the E10 race car topic.

http://datsun1200.com/modules/newbb/v ... id=346994#forumpost346994

Wombat,if you are looking for 150 to 170BHP you should start worrying about your gearbox.What kind do you have,early or late?The early type (car with the small rear lights,you need to push the gear lever down to engage rear) will not last long if you have that kind of power and the torque of an A15 I am afraid.I kept breaking them (also a couple of driveshafts) years ago,when I only had a decent A12.Never broke the later type,and yet I then had a much better engine.There are some modifications inside that make it much stronger.You could also use the gearbox from an F10 if you had them in Australia,they can be placed in an E10.Regarding your carb problem I was using 45DCOE's with 30mm horns and had at least that left to the firewall (using the factory oval port manifold).Try moving your engine towards the front of the car and give it a little angle,that would help (I put a spacer each side of the rear silentblock for exemple).Ideally us Cherry owners should use electronic fuel injection with those nice 30mm long throttle bodies that are on the market now,that would give us more than enough space.But it is expensive......Bike carbs would be a cheaper option if you can get them to work properly.Personally I will keep my DCOE's and cut into the firewall so I can try the longer air horns.

I Will be building the engine (a15) up for Hillclimbs and sprints so still unsure what power I want. I would love to have at least 150 170hp.

What power are you after Troy?
You have to go for the later carbs which were
semi downdraft or full downdraft but generally
some mid 90s cbr600-1000 have the downdraft ones
as far as I remember?
Chris can chime in.

Here are some that ended on ebay for 49us!!!!

http://cgi.ebay.com/ebaymotors/1995-H ... rcycles_Parts_Accessories

http://www.vwquebec.ca/forum/showthre ... 71158-MK1-CBR900-carb-%29

wiki info says 4 x 38mm just perfect size for most apps
128hp 95kw at 10,500rpm and 71mm bore x 58mm stroke
http://en.wikipedia.org/wiki/Honda_CBR900RR
http://en.wikipedia.org/wiki/Honda_CBR900RR

further info on the carbs (great info actually all the details)
http://jotuna.wordpress.com/2007/08/3 ... care-feeding-redondo-ron/

Ok then so what type of bikes and such do these come on?

D I have heard of Beechys before. I will look into them if I do the change.

I would pursue bike carbs Troy even non flat sliders work
better than dell/webers and mech inj when setup properly.
Make bike makers still use these modern version of CV carbs
and will leave plenty of room for you to use another alloy
rocker cover converted into a plenum :))))

The name of the place I mentioned earlier is

Beecheys Service Centre
1a Holbrook Street
Invermay 7250 TAS
p: (03) 6331 2948
e: info@beecheys.com.au

They helped me with my mazda 800 like you wouldnt believe.
His dad won the first ATCC victory by an Australian car
(Holden Monaro - Norm Beechey). They didnt even tell me
just stuck down to getting the 800 ready for me to catch
the last ferry out to melbourne and left everyone elses cars
aside while trying to charge me peanuts so I gave him another 100
of what was on the invoice as a thanks as it was the first time
ever I experienced such hospitality and service.

some race footage of Beecheys from 1970 top yesteryear viewing!!!
http://aso.gov.au/titles/documentaries/championship-chase/clip1/

Mikuni BS34's are quite cheap and are a sidedraught, fairly easy to tune with both me and diymark having run them before so bit of history there for you to reference to. They tend to sell for between $80-120 depending on condition.

I'm giving a set of Keihin CVK a go in a few weeks, just sorting the manifold out.

Mikuni TCM Flatslides are about as slim as you can get, real beautiful carb but pretty exe:

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As long as they are evenly spaced you can use from 34,36,38,40,41
depending on what final performance you are after.
Tuning will be the same in any good dyno or dell/carb/SU carbie place
few and far between but if you make a trip to melbourne I can help
you with locations but in Launceston there is a top bloke who could
probably help you or know of someone who does. Probably just a little
too far from Wynyard?

There's some misc 1000 stuff advertised in current "just parts" if anyone's looking