FXR race cams

[speedpro]

Use a CV carb without the slide. Fill the slide hole up with bog. OK if you are using a MAP sensor without a TPS though there is probably a not too hard way to add a TPS.

[bucketracer]

Use a CV carb without the slide. Fill the slide hole up with bog. OK if you are using a MAP sensor without a TPS though there is probably a not too hard way to add a TPS.

I am continually astounded by the ideas that bucket racers come up with. Why didn't (couldn't) I think of that! Very clever of speedpro.

[Rick 52]

Right now I'm playing with a computer and injection, if I can make it work (which is looking good) I'll happily throw all the carbs away........ The hardest part is finding a suitable throttle body, rest is a pice of cake. Looking at using a TB off a quad bike. would like one from GSXR600 but don't really want to pull a bank of four to bits[/QUOTE]

Now that sounds cool and using the old CV carb as the body is a easy way to make it all fit but it would be nicer to have a bigger diameter good luck.
Will you be at the next meeting ?

[speedpro]

I actually took a long time to think of that. I've got a Haltech engine management system that is supposed to be getting fitted to a bucket at some time and I need a throttle or two for that.

Just another 10 year project . . . . eh Dave!

[Sketchy_Racer]

In the long run it would be easier and more effective to get a throttle body, injectors and TPS sensor etc off a modern 600 (designed already for 150cc cylinders)

Hell you could even just run the standard ecu and loom and trim out the extra stuff you don't need.

Obviously there will be other little bits to sort out such as cam position sensor and crank position sensor and MAP sensor (which would be a piece of piss)

If you replicated one cylinder of a modern 600, your 150 single has the potential of about 30hp at a push. wouldn't that be cool.

I wish I had the time and money to do it now!

[gav]

Hey, you've got an old GSXR600, you could build four bikes! Can I've one?

[Bren_chch]

Hey Gav

I got the std cams and the race cams profiled at Kelfords. Kelfords were overall impressed with the race cams "much better than they look". i have all the info if you need it. in short they give a much greater power output above 8k, ideally you need to increase your compression to make the most out of them, thats something that is not hard to do, we've done it to andy macs, yowlings, dangerous, tonymac and my engines of course.

B

[Yow Ling]

If you replicated one cylinder of a modern 600, your 150 single has the potential of about 30hp at a push. wouldn't that be cool.

I wish I had the time and money to do it now!

Fuel injection dosent give you any more power than a well tuned carb, possibly better emissions control, the reason we dont have 30 hp fxrs or cbrs is a 150 has to push all the losses that are normally shared by 4 cylinders, oil pump, generator etc, also fxrs dont really have optimised inlet and exhaust tracts , fairly basic ignitions , cast iron liners etc etc

[Bren_chch]

cast iron liners etc etc

OH the dark ages!!! i seen some alloy ones coated ya know!