View Full Version : BMC race RS open top. How ?
Hi guys. How do I get my hands on a BMC race RS with the open top ? I don't need a jet kit or anything else, just the filter. There must be a way !Factory do them as part of a kit, JHS do them as part of a kit. I've got jets.
I suppose I could buy a BMC race from anywhere and get busy with the kitchen knife like I did to my street (see pic) But I was hoping for something a little tidyer.
Cheers guys.
Dappa D
25-09-08, 10:16 AM
hey boo....
im sure ive read somewhere that Yorkie chris or northwind contacted JHS and explained that they already had the jet kit but had damaged the filter so only needed the filter and they provided one...i may be wrong but im pretty sure fella....
did u try bigger jets yet out of interest???
oh also.....is this what your looking????!!!!!;):D
Yes, the one you've got !! That's what I'm after. It seems mine and yours have different filter elements.
I've put the 160s in but not tried it yet. I need another track day or race. I've got some 165s and 170s coming too. I may need to the 170s as I might run this (see pic) it's got mesh in the bottom. 60 holes per inch so it's pretty fine. I'm gonna have to get some dyno time and see what's what.
Dappa D
25-09-08, 10:31 AM
cool id be interested how urs runs with the 160's, obviously differently set up bikes but mine feels good at 160.
yea different elements hopefully whoever it was that sorted one without the kit will be along shortly to confirm....
i must admit i got very lucky with mine...£30 posted froma guy frome here who at the time believed it to be a BMC road (which i also thoght at the time....)....was very lucky....
yorkie_chris
25-09-08, 10:44 AM
T'was northwind, I got my RS from SVrash secondhand.
Dappa D
25-09-08, 10:59 AM
ahh new t'was one or the other...yc you were right about me not putting the plunger back correctly..is sorted now!!
Geoffrey
25-09-08, 11:04 AM
Dangerous Dave has sourced a BMC RS for my son, he did say they are only available from JHS or BMC as kits but as I said we have the filter only from him.
northwind
25-09-08, 12:54 PM
JHS sold me one, no probs. No idea if my lie was neccesary or not but James had previously refused to sell one seperately, now it seems to be less of a problem. I imagine they're harder to shift these days. Factory Pro have them as well and would probably sell them if you used the same like ;)
(interestingly, both JHS and Factory Pro claim that the filter is their exclusive and that nobody else has them)
yeah there's less curvies around all the time. the pointy is taking over !!
My last race meeting, Croft in August there was 2 curvies, me and another guy. and about 35 pointies. I don't need to tell you which were fastest. Actually the er6s were !
JHS sold me one, no probs. No idea if my lie was neccesary or not but James had previously refused to sell one seperately, now it seems to be less of a problem. I imagine they're harder to shift these days. Factory Pro have them as well and would probably sell them if you used the same like ;)
(interestingly, both JHS and Factory Pro claim that the filter is their exclusive and that nobody else has them)
How much did you pay ?
Dangerous Dave
25-09-08, 05:17 PM
interestingly, both JHS and Factory Pro claim that the filter is their exclusive and that nobody else has them
Every body else gets them from them, JHS and Factory Pro are the sole suppliers. If you have bought one then the chain will lead back to either JHS or Factory Pro before BMC.
You can most likely get one from JHS on its own now, as stated the Curvy is getting old and the Pointy's tend to be the bikes that people race now.
I sourced Geoff's from the back of my shed, I'll clean it first.
northwind
25-09-08, 09:28 PM
Every body else gets them from them, JHS and Factory Pro are the sole suppliers. If you have bought one then the chain
Yup, but both claim it's exclusive to them alone :D Sort of like those Sun front page exclusives :smt002
How much did you pay ?
Can't recall. Slightly more than a typical price for a filter, but not so much that I remember how much. Reasonable enough price though and good fast shipping. I'm really not a JHS fan, for various reasons, but this was spot on. Actually the whole stage 2 jet kit is a good deal for most folks, I had a look in the box for one a while back and it's almost exactly what I have in mine, built out of various parts- costs a lot more than I paid but then I have a lot of hours of time invested in it too, it would have been cheaper to buy the JHS kit and do some overtime
Have a look at this thread
http://forums.sv650.org/showthread.php?p=1167855
Dangerous Dave
26-09-08, 08:26 AM
Yup, but both claim it's exclusive to them alone :D Sort of like those Sun front page exclusives :smt002
Yeah, that bit is wrong as they supply to other companies (assuming they know).
Geoffrey
26-09-08, 12:26 PM
I sourced Geoff's from the back of my shed, I'll clean it first.
I hope so too! ;)
so if I get myself a standard BMC race from anywhere, demon tweeks for example. And scoop the top out like this , see pic, that'll be just like the rare BMC race RS ? It sounds like it'll be the same but just not as pretty?
Damn it why won't they just sell them to Joe Public ?!
Dangerous Dave
30-09-08, 12:06 PM
Road - The one to use with slip-ons and basic full systems.
Race - Same design as the road but has a free flowing filter membrane.
Race RS - Is a de-snorkled BMC Race.
Race SP - Is a BMC RS with a free flowing filter membrane and a filter in the base.
northwind
30-09-08, 12:46 PM
The Race and Race RS have a different filter element too- you can't cut a Race back as far as the RS is as stock. Or so Robw said, and he knows his bisuits. Never tried myself.
So there's 3 different filter substrates now ?
What sort of horse power differences are we talking about anyway ? I'm running a desnorkled BMC road at the minute which came with the bike. If I swop to a desnorkeled BMC race and jet to suit what will the difference be ? It's stock except a micron pipe and 8" stubby end can.
If we're talking 1-2 hp I may as well leave alone as the hp per £ ratio is too high at £60 per hp or £60 for 2 hp if I'm lucky ?
What do you guys think ?
If Dave is right with his above list (and race and race RS have the same filter element) it looks like I can achive > 90% the efficency of an RS by buying the cheaper race and getting busy with a bread knife.
Like I say it'll look crap but it's under the tank anyway so no-one will see.
Dangerous Dave
30-09-08, 04:14 PM
The Race and Race RS have a different filter element too
The actual filter elements are the same.
northwind
30-09-08, 05:30 PM
Been trying to find the post... Basically, Rob cut back a Race filter and discovered that the filter element intruded far enough into the filter body that he couldn't desnorkel it as far as an RS. But I wouldn't rule out that I'm misremembering, it may have been a Road. Wish I could find it.
husky03
30-09-08, 05:39 PM
i've contacted bmc direct and i'm waiting for them to get back to me with info on availability
husky
Dangerous Dave
01-10-08, 06:56 AM
The Road filter is a smaller diameter Northy, perhaps it was this filter that was being cut back? The actual filter element is the same on the Race as on the RS.
Been trying to find the post... Basically, Rob cut back a Race filter and discovered that the filter element intruded far enough into the filter body that he couldn't desnorkel it as far as an RS. But I wouldn't rule out that I'm misremembering, it may have been a Road. Wish I could find it.
Have a close look at the pic of my desnorkled road a few posts back. It's got a pretty large hole. From what I can make out from pics it's very similar. It's as far back as you can go. The limiting factor with it is the size of the opening in the air box. There's only ~10mm to spare in between the air box plastic and the filter hole.
I'll get a vernier on it tonight. I'm at work at the mo.http://forums.sv650.org/images/icons/icon12.gif
Dappa D
01-10-08, 08:20 AM
alright lads....i thought it was said that they had different material on the road to the rs....therefor not being able to make exactly the same even when cutting away??...
boo i keep meaning to look mate ref the markings....will do soon fella just seem to have no time atm!!
alright lads....i thought it was said that they had different material on the road to the rs....therefor not being able to make exactly the same even when cutting away??...
boo i keep meaning to look mate ref the markings....will do soon fella just seem to have no time atm!!
Aye that's the crack like. a road will never be anything other than a road snorkle or not. However I'm thinking a race + a big hole = a race RS. As per my butchery skills as demonstrated with my road. I've got some 165 and 170 mikunis now so I'm all set jet wise. I've also got 160, 152.5s and some 144 dynojets. which are tiny ! The 170 mikuni next to the 144 dynojet looks twice the size.
Dappa D
01-10-08, 10:58 AM
ah yes i didnt read properly....was thinking road desnorkled not race yeah that makes sense
Dangerous Dave
01-10-08, 11:57 AM
i thought it was said that they had different material on the road to the rs
These are the specs are per BMC....
Road - The one to use with slip-ons and basic full systems.
Race - Same design as the road but has a free flowing filter membrane.
Race RS - Is a de-snorkled BMC Race.
Race SP - Is a BMC RS with a free flowing filter membrane and a filter in the base.
husky03
01-10-08, 12:26 PM
BMC got back to me this afternoon, advised to go here for there filters -
http://www.calsport.co.uk/
husky
Calsport say:
The filter 205/10RS is available but the importer has to order in units of 10 and they have no stock. The last consignment were sold to a Company called JHS. They suggest you give them a call to see if they have any left. Their number is 0117 9868844.
dappaD tried to get one from JHS a few weeks ago and they were having none of it without selling him a jet kit and set up. Something like £260 !
Dangerous Dave
01-10-08, 04:57 PM
The filter 205/10RS is available but the importer has to order in units of 10 and they have no stock. The last consignment were sold to a Company called JHS. They suggest you give them a call to see if they have any left. Their number is 0117 9868844.
JHS is the importer, well they were last year.
Robw#70
01-10-08, 06:57 PM
The race filters have less layers of cotton in the same as K+N are now doing for some bikes.
TBH on a stock bike (minitwin) you can do all sorts to the intake with filters, gauze etc but all you end up doing is putting bigger and bigger jets in, effecting the midrange and not really gaining any top end hp, a good clean oem filter and correct setup will make virtually the same power with better midrange.
Unless your tuning the motor time and money can be spent elsewhere more effectively
Did you try GHMOTOFAX@aol.com ?
The Company is:
Graham Hardy Motofax
Unit 7 Shield Ind Estate Manor House, Avenue, Millbrook, Southampton,
Telephone: 0238 0511999
They were an importer & distributor of BMC fiters and happily supplied me with with a single 205/10 RS filter. £48.00 inc P&P December 2005.
jhsracing
01-10-08, 09:50 PM
JHS is the importer, well they were last year.
We still are the importers for BMC 205/10RS filters !
We have them on the shelf and will sell as a stand alone unit if required. But maximum power gains will not be achived without correct set up.
jh
www.jhsracing.co.uk (http://www.jhsracing.co.uk)
Dappa D
02-10-08, 08:23 AM
We still are the importers for BMC 205/10RS filters !
We have them on the shelf and will sell as a stand alone unit if required. But maximum power gains will not be achived without correct set up.
jh
www.jhsracing.co.uk (http://www.jhsracing.co.uk)
:shock:
well thats good....and from JHS themselves......not what i was told tho when i called.....luckily as i got a 2nd hand one at a good price but at least we know they are definatly available and anyone who answers the phone at JHS, should they say "let me stop you there, we wouldnt contemplate selling one without the kit"...can be reffered to this thread!!!
To be honest i think I'm going to abandon the whole idea. I've been thinking about the £ per horse power ratio. The bike allready makes a touch over 70 at the back wheel running super lean with dynojet 144 mains( see graph ) Now I've sorted the fuel with some 160 mikunis and a de-snorkeling of my road it should be 71-72 rwhp. I'm thinking I'll get another 1-2 rwhp max for the £70 price of a new RS. So that's £70 for max 2 rwhp. I'm thinking bollox just ride it. £70 is the thick end of a track day next spring.
Dappa D
02-10-08, 09:00 AM
To be honest i think I'm going to abandon the whole idea. I've been thinking about the £ per horse power ratio. The bike allready makes a touch over 70 at the back wheel running super lean with dynojet 144 mains( see graph ) Now I've sorted the fuel with some 160 mikunis and a de-snorkeling of my road it should be 71-72 rwhp. I'm thinking I'll get another 1-2 rwhp max for the £70 price of a new RS. So that's £70 for max 2 rwhp. I'm thinking bollox just ride it. £70 is the thick end of a track day next spring.
id agree with that, dont know what the regs are for the series ur in but for hp purposes money could probably be spent better elsewhere!
also if you dont already have it might be worth putting the r6 throttle tube on...expect youve seen the threads...obviously no extra power...
but that split second it takes to adjust your hand to get the 1/4 turn to full throttle could see someone racing past on the inside and make the difference....
mine is going on at the weekend:D (obviosly a necessaty for my short journy to work each day !!)
northwind
02-10-08, 04:21 PM
Yeah, it's not cheap power. If you're racing, sure, it might mean a win or a loss, that's a big deal. And if you're a daft enthusiast and you want to rejet it's generally worth doing as well as you can. But for most folks, it really just makes sense not to **** with it.
Cams is a good alternative- £100 at the minimum for a jet kit and filter, plus set up time, vs £130 for 2 K3 intake cams and the gaskets, for a bit more power, a nicer power curve, and no set up time. But even that doesn't make an awful lot of sense.
Where are the cams available from ? Direct from Suzuki ?
I've got a BMC Race RS in the post, £53 from JHS. I spoke to a very helpfull lady yesterday afternoon and it's now in a van on it's way to me.
I really should take my own advice. I see this as a very slippery slope I'm starting on.
I think I should buy shares in a dyno room.
Dangerous Dave
03-10-08, 07:31 AM
We have them on the shelf and will sell as a stand alone unit if required. But maximum power gains will not be achived without correct set up.
I think I said this in a previous post and got shot down by the others....
Where are the cams available from ? Direct from Suzuki ?
Yu can but it will be expensive. You can source them from breakers who are breaking damaged engines or on Ebay sometimes. Some even go as far as buying K3 engines just for the Cams and CCT's.
yorkie_chris
03-10-08, 11:07 AM
Makes sense, get a K3 that's spat a rod or something, nick cams, sell off alternator, sidecovers, etc etc. Is not hard to break even.
BMC RS recieved in the post today ! £53 + del + VAT from JHS. All sorted. I'll be fitting it tonight. Then spending the next few nights deciding on jetting. Anybody got any ideas with a micron system and a 8" stubby end can ? I'm thinking 165 mikunis ? I ran 152.5 mikunis with a de-snorkeled BMC road and it was a little lean.
yorkie_chris
07-10-08, 03:17 PM
I'm on almost exactly the same setup. 165s for me with some tank raisers too.
I'm on almost exactly the same setup. 165s for me with some tank raisers too.
sorry Chris, forgot to mention I'm running tank risers too 20mm ones... de-foamed tank also. And 2 degree of advance on ignition pick up. Erm.... I think that's all engine wise.
yorkie_chris
07-10-08, 03:25 PM
Should be close with 165s then
Should be close with 165s then
Chris have you ever had an A/F meter up your pipe on a dyno with this set up ? http://forums.sv650.org/images/icons/icon5.gif
I'm thinking if yours is close then mine should be too, maybe not exactly but close enough.
Do you know what power it makes ?http://forums.sv650.org/images/icons/icon5.gif
Dappa D
07-10-08, 03:51 PM
excellent glad u got one boo.....let us know how u get on....
yorkie_chris
07-10-08, 04:10 PM
Sort of. It was slightly lean with 162.5s. 165s have eliminated the slight stumble.
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