S4R Cat removal
 

Hello from a newby!
I took delivery of my new pride and joy S4R two weeks ago.
Already done 1500 miles and in process of fitting the usual bling.
Just done removal of Cat and fitting of Spareshack straight thro pipes.
Can anyone advise how this may effect engine mapping?
Am I risking running lean and hot, or am I just worrying to much!
Any advice would be greatly appreciated!

Hi Youngduc,

I have the same colour s4r aint it a pain keeping the wheels clean:lol::lol:

I would also like to know what effect your cat removal pipes has on the fuelling, how does it sound with standard cans?

Hi Lee,

I hope you're as pleased with you new bike as I am with mine! After years of Japanese 4 cylinders Im a convert to all things twin Italian!!

You are certainly right in the white-wheel cleaning dept! Part of the price to pay I suppose! Doesn't help having a Scottoiler doing its upmost to make things worse!

Removal of the cat certainly makes a very positive difference to the sound, and also makes for a much free'r throttle response. Just a little concerned about the fuelling. I hope someone here may be able to advise.

Also just had to order from Spareshack a set of S.S. clutch springs. Found that originals started to show signs of rust soon after fitting open clutch cover. Not good having rusty bling!!

Also have fitted alternative clutch slave cylinder. Had to admit defeat in the limp-left-wrist dept around town! Beware of the low quality allen headed set screws. Couldnt believe it when I rounded off 2 out of three when removing! All replaced with good quality S.S. alternatives.

Cheers

I am pleased after coming of a 748 i knew what to expect engine wise but obviuosly more tourque/power, but the comfort is way better.

I was going to get a slip on can (see my post s4r slip ons) but think the cat remover pipes maybe more worth while.

Had 50mm ti -termis on my 748s so want that sonud but be even deeper on the s4r :D:D

My springs are all brown to, i wonder if the clutch getting wet at work someitmes will do any damage, should i clean grease parts more?

I got used to the clutch now after 18 months on the 748 :o:o

I was suprised to find a lot of my engine bolts are s/steel when the pics i seen showed them all to be that zinc colour, maybe they ran out and i got s/steel instead can u take a pic of yours to compare?

Hi mate

Are you running the standard ECU ? ..if so I would strongly advise changing it as I guess it wold run quite lean with the cat removal pipes and silencers.

I had a chat with a ferraci guy at world ducati week, just before I got mine, and he said its one of the few ducati models that runs quite lean anyway.

Cheers and congrats on a fine purchase (sod the white wheels, that colour scheme looks the dogs!!)...but may I recommend a steering damper ??! Even if you reside on the flattest area in the UK, you WILL need one at some stage I promise you !!!

Nat

Hi Nat,

Thanks for the advice. Its appreciated. I am running the standard ECU. Ive kept the original silencers, but taken away the Cat. Looks like all the avice is pointing toward re-mapping! Now I need advice on how best to get that done!!

The steering damper is next on the shopping list. Put the bike through its paces yesterday to and from Croft. First real blast since its been run in!

Its white wheel cleaning time again. Met some real sh**y weather coming back over A66. The price we have to pay........!!

Cheers

Id go for a PC3 (Power Commander). You can download a map to suit your standard cans, and then change it if you plan to get some silencers fitted. Be aware that your fuel consumption will take a hammering though (but what do we care - we only get 90 miles to a tank as it is :lol:)

Cheers
Nat

My pride and joy!

made all the better for the aforementioned Spareshack straight thro pipes!!

All cleaned and shining again after yesterdays trip to Croft.

Graeme

Mine's has been catstrated as well, but I've also got the lowlevel termis - the sound is loud but wonderful!!!:D The chip has been changed as has the filter and this has resulted in an increase in power to a not too shappy 115. There is some drop-off at the top which could be cured by a Power comander but I'm not too worried. Best mods - 14T front sprocket - awesome!! and having suspension sorted. Top bike getting better with age.:D:cool:

Lovely...much shinier than Lees...:lol:

what a lovely bike, if i could have another bike in the garage next to the 749 that would be it !

/ian

What u mean Nat mine is clean now :lol::lol:

I dont know what to do now, wether to get a slip on or the cat remover pipes if I need a pc3 to, as I dont want it to run lean, Hhhhhmmm so much money to hear the roar!!!

[Edited on 7-6-2005 by Lee1980]

There's a PC III map available for the S4R with cans and the cat removed. I took a customers bike over there for the mapping to be done. I think it's available as a download. If not I have a copy somewhere.

Thanks Nelly,

I was just hoping to put on a slip on and/or the cat removal pipes for the sound not after more power, but dont want to do any damage like running lean etc.

Not to be out done heres mine shiny Nat! :lol::lol:

One of the rear love the pilot power tread pattern:D:D

These mirrors work well but look so much better than the originals:D:D

Hi Lee,

You've started something here!

I like the mirrors! Where did you get them from?

Ive attached a pic of my rear (if you'll pardon the expression!)

Try losing the reflector, raise the number plate a little, and fit one of the Italian flag reflectors above it.

What do you think?

Hehe they do look good!!!:D:D:D I got them from MPS about £15 each well worth it, I had them on my hornet before and these are better than the originals i think.

Reflector is now gone, guess i'll need a new plate to move it upwards, looks good Graeme that italian flag one have to get me one:D

Italian flag reflectors can be found on Ebay:

http://cgi.ebay.co.uk/ws/eBayISAPI.d...sPageName=WDVW

I used same plate, but moved mounting bracket upwards. Just need to drill two new holes.

I found some mirrors on Ebay. My bid is on!!

The 14 tooth sprocket is also in the post!!

Thanks Graeme, will take a look

Will try the plate mod to. Going to try the 14t after the first service;);)

Are u running it now on the spareshack header ( did u get type 1 or 2?)
with no mods to fuelling?

Is it much more louder with just the cat removed?

Im running with the straight through header now. Its Type 2 if your using stock silencers.

Quoting Stuart at Spareshack:
Type 1 is two seperate pipes which were
really designed for use with a 2-1 silencer and type 2 has
the pipes joined together with a cross over for the gas flow
which is the best option which the standard 2-2 set up

Havent done anything about fuelling. The sound is certainly a little louder and throatier, but at standstill its still the rattling clutch which attracts the attention!

How many miles you done now? I had my first service 5 days after I picked it up!

I have done about 450 now sad i know lol must get out on it more. Be on my hols soon so add more then.

Whats your dealers thoghts on your cat removal pipes? are they an offical dealer?

Here's mine, Cat removal will be next :devil:

Darren

Nice Lespaul I do love the look of the Arrows, any mods to fueling for u? or are u going to when u add the cat removal pipes?

No mods to fueling yet Lee, just had it serviced and ran up on a dyno while it was there to check it and everything is fine, so it will be left untill the cats removed, intend to remove the cat, new air filter and a PC3 all at the same time so need to get some overtime in :rolleye:

Darren

I've just returned from local main dealership to see if I could resolve the fueling issue with straight tho pipes.

Service guy said that fueling should not be effected adversely by fitting pipes. The existing mapping can be altered by +/- 6% if the emissions proved to need adjusting. He suggested having it checked at next service for peace of mind.

I also asked about warranty issues of removing Cat (and also stock slave cylinder). Im told that these mods wouldn't effect warranty.

Meanwhile, my new 14T sprocket arrived today! Little job for tomorrow!!:burn:

Sounds good, I guess if u had cans aswell a new ecu or pc3 would be required to.

HHHHmmm just a 14t for now lol cheaper;);)

I've got spareshack system on order from Market place and was going to fit power commander. Found them for sale in the USA for about half the money.
Does anyone know if there are any differences, i would have thought that as long as you put the correct map in, then all would be well?:puzzled: