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carbs
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Posted by: FoxHondaRider

450r:

-04/05 carbs are 42mm

-06+ are 40mm FCR carbs.

whats the difference and what is better?

Posted by: pro-rider46

the 40 mm is a lot better, i dont no why, but it is for sure, and you can get them bored to 43mm, and it add like 4-5 hp more than a stock 42mm carb

Posted by: TRX450R_Racer

The FCR is a totally different carb. It doesn't have the butterfly flapper on it. That gives you quicker throttle response.

Posted by: chad502ex

my 43mm 07 CRF FCR carb is the best carb available.

I was the first one to perfect and the first one to offer a taper bore FCR carb....

now, everyone else has tried to copy my taper angles because my carb kicks arse.....

Posted by: FoxHondaRider

see i was just wondering because I want to put a 450r carb on my 400ex. how much more is the FCR than the regular?

Posted by: patrickj75

quote:
Originally posted by chad502ex
my 43mm 07 CRF FCR carb is the best carb available.

I was the first one to perfect and the first one to offer a taper bore FCR carb....

now, everyone else has tried to copy my taper angles because my carb kicks arse.....

i can speak from experience! great carb and great carb mods from Chad!

Posted by: Pojo450r

chad how much for your carb?

Posted by: d3ktrix

quote:
Originally posted by TRX450R_Racer
The FCR is a totally different carb. It doesn't have the butterfly flapper on it. That gives you quicker throttle response.

The 04/05 carb doesn't have the "butterfly flapper" either.
FCR is has a flat slide and the 42 has a round slide.

Posted by: chad502ex

quote:
Originally posted by Pojo450r
chad how much for your carb?

a brand new DRG 07 FCR 43mm taper bore carb with adapter machining and hot start cable for $780- fits an 04/05

without adapter is $710- fits 06+

or for the 06+ you can taper bore the OEM carb to 43mm for $260

Posted by: chad502ex

quote:
Originally posted by patrickj75
i can speak from experience! great carb and great carb mods from Chad!

thanks for the good words.

Posted by: FoxHondaRider

quote:
Originally posted by d3ktrix
The 04/05 carb doesn't have the "butterfly flapper" either.
FCR is has a flat slide and the 42 has a round slide.

I understand the butterfly flap but the flat slide and round slide I cant relate to. Could anyone explain this to me?

Posted by: TRX450R_Racer

quote:
Originally posted by d3ktrix
The 04/05 carb doesn't have the "butterfly flapper" either.
FCR is has a flat slide and the 42 has a round slide.

UHH yes it does.

http://i6.ebayimg.com/06/i/000/c5/ba/92e2_1.JPG

Posted by: bloodmoney23

Plus the FCR is just alot better. but you can find the stock 42mm on ebay pretty cheap. since its going on a 400ex i dont think you would want toooooo much. Chad.....hey whats your number at DRG. It wont be real soon but when I get my tax return back i think its time to beef my engine a bit.

Posted by: chad502ex

quote:
Originally posted by bloodmoney23
Plus the FCR is just alot better. but you can find the stock 42mm on ebay pretty cheap. since its going on a 400ex i dont think you would want toooooo much. Chad.....hey whats your number at DRG. It wont be real soon but when I get my tax return back i think its time to beef my engine a bit.

301.910.9850