keihin fcr, vs, tdmr 40mm

steve speed · Post by **steve speed** » Thu Sep 27, 2007 2:51 pm

can somone please tell me if there is any differance between keihin fcr and TDMR 40mm carbs in performance , are the TDMR carbs as good ? ,,thanks

Post by **phuk72** » Thu Sep 27, 2007 4:39 pm

<in joke mode on> "quote Brett" Yes, the difference is absolutely huge. The TDMRs are absolutely shite. In fact you must be a wanker for even asking that question. "quote" <in joke mode off>

Sorry, couldn't resist.

From all the research I have done, FCR41s get the nod over TDMR40s and FCR39s but the differences are really not worth worrying about (maybe 2 bhp difference).

cheesie · Post by **cheesie** » Thu Sep 27, 2007 7:45 pm

I was told by allens performance the tdmrs were better because of thier fine adjustment but the keihins seem to sell better, so in the long run if you decide to take them of again and sell seperate might be better with the fcrs

steve speed · Post by **steve speed** » Thu Sep 27, 2007 7:51 pm

is there a big power increase with this mod ?

Post by **phuk72** » Thu Sep 27, 2007 8:06 pm

steve speed wrote:is there a big power increase with this mod ?

With FCR41s & K&N pod filters my motor (which was already tuned) made a dyno proven 8bhp more.

And you can get another 1-2 bhp through the range is you do the TPS mod

Tarwetijger · Post by **Tarwetijger** » Thu Sep 27, 2007 8:45 pm

Are the FCR's even still for sale ( I mean, brandnew)?
I know the TDMR's are.

cheesie · Post by **cheesie** » Thu Sep 27, 2007 9:08 pm

try these uns http://www.brspecialtuning.co.uk/Keihin.htm

Tarwetijger · Post by **Tarwetijger** » Thu Sep 27, 2007 9:31 pm

cheesie wrote:try these uns http://www.brspecialtuning.co.uk/Keihin.htm

Ah! Thanks.
So, Ãƒâ€šÃ‚Â£535 / EUR 757 - still an awfull lot of money but less then others I've seen, for example from Kedo: TDMR 40mm FS-Vergaser-Kit (TÃƒÆ’Ã…â€œV) ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬989.00

As I discussed earlier today with Jak, all gadgets for the TRX seems to be available and more affordable in the UK (in contradiction with the Netherlands). Seat cowls, decals, you guys have everything!

Even spark plugs are cheaper at your side of the pool.

kebab19 · Post by **kebab19** » Fri Sep 28, 2007 8:13 am

The way I'm starting to look at it is that although they are expensive, you effectively get a different bike after fitting them. And should you feel the financial pinch, you would get most of your money back if you sold them on through Ebay. Probably a bit like the resale value of an Ohlins shock - even second-hand they seem to go for top dollar.

Having said that, I still havent bought a set yet! Things to do number 63.....

Post by **phuk72** » Fri Sep 28, 2007 8:24 am

Tarwetijger wrote:Are the FCR's even still for sale ( I mean, brandnew)?
I know the TDMR's are.

Yes

Kebab19 wrote:The way I'm starting to look at it is that although they are expensive, you effectively get a different bike after fitting them. And should you feel the financial pinch, you would get most of your money back if you sold them on through Ebay. Probably a bit like the resale value of an Ohlins shock - even second-hand they seem to go for top dollar.

Very true

Post by **Max** » Fri Sep 28, 2007 9:46 am

Think of them as a TRX on Viagra and cocaine. Wouldn't you say, phuk?

Post by **phuk72** » Fri Sep 28, 2007 9:48 am

Max wrote:Think of them as a TRX on Viagra and cocaine. Wouldn't you say, phuk?

I don't know what you are talking about

Tarwetijger · Post by **Tarwetijger** » Fri Sep 28, 2007 9:50 am

Hmm, so you'll have some period of fun and after that you will find your TRX lying on the streets in the gutter?

Post by **Max** » Fri Sep 28, 2007 10:00 am

Well, I suppose that depends on how well you hang on.

cheesie · Post by **cheesie** » Fri Sep 28, 2007 9:07 pm

ive only ever had a go on one bike with them fitted an xjr 1300, dont know what they will be like on the trx, but at idle they make a nice rattling noise then as you take of theres a whistling which builds in volume to a deep roar should just add more character to bike that already has it in bucket fulls. hope I dont loose much low rpm power that seems to be one of thier downfalls with four pots