Bimota Forum

[ladolcevita7]

Anyone got any ideas on how much does a Corse ti can weigh for a DB4 ?
Been searchng on web, but not come across the info I need.
I am guessing on approx between 5-7 kgs.
Also does anyone know if it will fit onto the original header pipe or will I need the Corse header pipes aswell ?
Or maybe just a wee bit of manipulation is needed to make it fit.

One day it will roar again 👹

[brian]

I don't know but I guess it's no where near 5 or 7 kg's. I have a titanium FULL system for my ZXR750R and the complete system weighs 4 kg. The can alone weighs 2 kg
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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851

[2bims]

Again sort of guessing from my own Twin Corse Titanium cans and branch on my DB2...I'd also say nearer the 2Kgs mark.....It should fit straight onto the existing 2 branch outlet that Bimota fitted as on the DB4 Corse bikes the end can, and a set of Keihin FCR39 flat slide carbs were the only changes (other than a different tank to allow the routing of the twin cable throttle assembly

There are only 3 issues with the corse End can...or possibly 4.....

Trying to find one...although maybe the company in Japan will remake one (strap would be needed also)

Paying for one....I've never seen a 2nd hand one for sale...and I reckon a new one would be over 2K GBP once landed in the UK from Japan with tax, import duties etc.

Carbs would need rejetting to make the most of it...and airbox opening up.

4th issue is the Noise...........Loudest can I've ever heard when linked up with flatslide carbs and K&N air filters.......

[v-pilot]

I think they will make them for you...around $1,400GPB

http://global.rakuten.com/en/store/motocorse/item/850247/

The different tank is cut short to fit the cone filters

I have a single pipe 60mm straight through Ladybird on my aprilia Mille...fookin loud!
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02 aprilia RSVR Mille, 02 aprilia SL1000 Falco
99 bimota db4 tricolor, 98 Moto Guzzi V10 Centauro
97 Suzuki LS650 96 Triumph Trident 900
96 Ducati 900 SS/SP
87 moto Guzzi Le Mans IV se (2x)
78 Moto Guzzi V50
68 benelli 250 65 Ducati 250

[2bims]

No seen that site before.....I presume thats what you pay them...but then import tax, VAT and shipping charges also...would take that close to 2K gbp...nice but Ouch........

[ladolcevita7]

Right gents thanks for all the very informative replies.....😉

so it is between 2 dental implants at 3k or a full Corse system at approx 2k hmm
No brainer 😂
Or just stick to the shotguns or fit the DB4 i.e. can I have.
Obviously the best weight saving and performance benefit are to go with a titanium system.
Not forgetting the added looks and symphony of decibels 😊

[vort28]

Never weighed my corse can but when I used to have to swap shotgun one back on for MOT , the weight difference is unbelievable, I would say 1.5kg max for corse can.
Its a bit of 0.5mm titanium sheet wrapped in a cone with a perforated baffle and that is it. And yes it is bloody loud, I would say on par with my DB7 with full race pipe.

It does fit to standard headers , and the DB4 sports kit came with flatsides and the tank mod.

Having ridden my DB4 and 2bims standard DB4 back to back you would not believe it was the same engine, makes a HUGE difference with the sport pack, now can't tell you which bit is the best improvement , but as a whole the kit is great. Is the can work £1500-2k ??? Well maybe, but you need to double that for all the other bits and dyno'd ??

[brian]

The biggest improvement would be in the FCR's I recon.
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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851

[deebee4]

In fact I opened up my stock db4 shotgun silencers. And discovered why they're so heavy. The aluminium exterior pipes are just for looks. Internal here's a stainless steel resonance type muffler times 2.

I drilled out the rivets in the end caps. That made it all come loose. An angle grinder to cut away everything except the section with the nuts for the bracket. Then I had conical perorated pies made to suit and had them welded in place. Packed the pipes with mesh and glass fiber packing, Just enough for a tight fit into the aluminium outer pipes. Drilled holes for rivets top and bottom and fitted everything together. Piece of cake....

Now it's a absorption type silencer and really saved over 5 kg of weight and it's really less restrictive.

See attached pictures. In my enthusiasm I forgot to make photo's of the silencers with just the aluminum outer shells off....... But they're just complete round silencers. You can run the bike without the outer shells or replace them with carbon fiber shells.... The pipes in the first two pictures are perforated pipes that I didn't use because they didn't fit.









But now I used the front part of a db4ie silencer and fitted an Akrapovic oval titanium slip on silencer from a RSV Mille to it. Works like a charm and also is very light. And easier to replace in case of a crash on the right side. (So far only 2 crashes on the left side in 12 years of track use.....)
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Track riding on a Bimota: FUN!

[vort28]

[vort28]

[ladolcevita7]

Hi Deebee

I really like your way of thinking and an excellent write up on how to manipulate the standard shotgun pipes.
That sounds a easy enough modification to do for not much money or effort.

One thing at a time or what ever comes along 1st and at the right price for me.....carbs or pipe and eventually both to give me the extra oompph I would like.
In reply to your message vort, I already have a couple of trailer Queens that need transport to get there for the mots, another one wont make any difference 😄

[ladolcevita7]

Can anyone recommend a exhaust pipe fabricater/welder in the North west please ?
Need a 2-1 connecting pipe 😊

[PaulDB2]

JP Exhausts in Macclesfield and Alunox in Wrexham have good reputations and seem to specialise in stainless steel systems, mostly car systems but worth a phone call. I have dealt with Tony Law Exhausts in Leeds for my race car systems and been very happy with them, though I think they stick primarily with mild steel items. Good luck.
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Bimota DB1, Bimota YB5, Bimota YB6 Exup, Bimota YB9 SR, Ducati NCR Replica, Moto Guzzi 750 S3, Honda CR750 race replica, Seeley-Suzuki TR500

[vort28]

Quill are around you and MTC are in Ormskirk.

MTC made the cans for my Santamonica.