67 replies to this topic

[Ducshop]

I just approved the Pistal drawings for our new big bore kit. 848 to 1040 (1039.9cc) at 13:1 with the stock base gasket at 1.2mm squish and same weight as the stock piston.
At 10mm over using 1098 cylinders is efectivly a short stroke 1098, similar to the many 749/924 kits we sold should be good for an average of 20HP thruout the rev range.

More fuel is needed so will need a Microtec, Nemesis, Rapid Bike or Powercommander. The first in house job will have a Microtec and full Leo pipe so will have a map from it.

Normaly takes them 30 days so not sure on delivery date with the holidays, have 3 sets pre-sold. Should be a kit price around $1800 for pistons, rings, pins, clips, new cylinders and oem 1098 head gaskets.

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[BOBR219]

Get out your check book, Lewis!!!

[BlackBetty]

What about a 1098 to 1198 big bore kit, with R cams.

[Ducshop]

There are pistons for that but have to use 1198 or 1098R cylinders and bore the cases, hardly worth it for 2mm more. The 848/1040 is 10mm more so very much worth doing. 1198's are also stroked, better off with 1098 HC pistons and a good valve job worth about 10HP.

BlackBetty said:

What about a 1098 to 1198 big bore kit, with R cams.

Edited by Ducshop, 20 November 2009 - 11:00 AM.

[Ducshop]

Lol! He'll have 10HP more than his 998 with less weight so watch out!

BOBR219 said:

Get out your check book, Lewis!!!

[froggert]

ooooh.. the 924 kit in my 749 totally transformed the bike. the 1040 must be really fun to ride!

[Grayson]

what is the total cost of this including labor or a rough estimate?

[Ducshop]

About 12 hours labor at $85 so right at $1000 + $1800 parts and add for a Powercommander and Dyno time if you already have a DP ecu.

Grayson said:

what is the total cost of this including labor or a rough estimate?

[KNEEDRAGGER]

That sounds awesome Mark, I've had a lot of customers talk to me about how the feel they are outgrowing their 848 and feel the need for a substantial boost in power, I'm glad that now there is something we can offer them!

[Ducshop]

Thanks! As with the 749/924 kits we sold, we find there is less need to rev the engine so much so is easier on the valve train ect...

KNEEDRAGGER said:

That sounds awesome Mark, I've had a lot of customers talk to me about how the feel they are outgrowing their 848 and feel the need for a substantial boost in power, I'm glad that now there is something we can offer them!

[denali804]

Mark, Any big bore kits out there for the 1198?

[Ducshop]

denali804 said:

Mark, Any big bore kits out there for the 1198?

No, and would only be able to go 2mm anyway. Remember, all the liter class Ducati's are about maxed out in there design and 1198's are basicaly an overbored 1098.
848's are basicaly a small bore 1098 so is easy to add the 1098 cylinder. Same base gasket and stud pattern on an 848 and 1098,
Same story for 748 to 853 (916 cylinders) and 749 to 924 (999 cylinders).

[Jetmech]

Mark , is there any possibility of better cams to go with the kit for more HP? and is there anything you can do to the stock 848 cams to help enhanse the HP for this kit? and is there going to be any overheating problems?

[jony2stones]

Awesome work! .... but now I have something else that I want....:crash

[Ducshop]

You can make 1098R cams work with some mods so would be in the $300 to $400 per HP range but the idea of this kit is it's under $100 per HP.
No overheating issue since it is really just a short stroke 1098, nothing radical about it, stock 1098 cylinders and head gaskets. You cant use 1098 pistons because the wrist pin is in the wrong location and the compression would be too high. I had the 3 ring piston made so is a nice compression ratio as a drop-in (about 1.25mm squish) so there is room to bump the compression if you want more power with thinner base gaskets, even then the extra heat would be minimal.

Jetmech said:

Mark , is there any possibility of better cams to go with the kit for more HP? and is there anything you can do to the stock 848 cams to help enhanse the HP for this kit? and is there going to be any overheating problems?

[Ducshop]

Thanks! This is the fun part of my job : )

jony2stones said:

Awesome work! .... but now I have something else that I want....:crash

[DTM-POW3R]

That's why I got the 1198 because it would be 600 syndrome after a week and then end up with a 20k$ 848.
I would say however around 2grand for a build like that is a REALLY good deal and while its open get it ported polished, blueprinted and balanced for a little bit more.

Seems like the ducati vendor crowd is about 10x ahead of the Evo and jap bike crowd, even the bmw forums I belong.

[Drewbrese]

Awesome, looking forward to seeing the results.

[Templar]

DTM-POW3R said:

That's why I got the 1198 because it would be 600 syndrome after a week and then end up with a 20k$ 848.
I would say however around 2grand for a build like that is a REALLY good deal and while its open get it ported polished, blueprinted and balanced for a little bit more.

Seems like the ducati vendor crowd is about 10x ahead of the Evo and jap bike crowd, even the bmw forums I belong.

This has been my experience with Ducati aftermarket vendors as well.

I am looking forward to seeing some results from this kit. It is perhaps something I might consider doing to my 848 in a couple of years.

[DTM-POW3R]

Yeah, I have yet to order anything yet (since bike doesn't hit the ground untill tuesday) but its good to know the vendors are active and honest it seems from all the reviews.
Btw Duc shop, if your talking 2mm+ bore for the 1198 thats very worth while imo, thats more than 1% from volumeetric efficency.
I would prefer, rather than bigger displacement on my bike, to raise the rev limiter about 1000rpm which it should easily be able to do 500+ without changing anything.