999 lump into 996 frame - is it possible?

[yeti]

As the title says - is it possible to fit a 999 lump into a 996 rolling chassis? Got the chance of a 999S and would like to fit it into my own chassis, but assume I'll need wiring looms and all sorts, so is it even worth it?

[swannymere]

:saint: For that original antique look,yes:devil:

[moto748]

Or, build in extra reliability and fit a 996 engine as well!

[HW]

I would recommend trying a properly sorted 999S before you decide - you may be surprised. As for the looks - it grows on you, I love it now. :)

[ziggi]

Well Frankie Chili did it so I guess it must be possible. You might need a WSB crew and lots of money. If the engine fits without mods to frame i'd be surprised but that's probably the easy part. Wiring loom change possible as needs different CPU. What about airbox etc? What about exhaust - custom job?

Would be great to see someone do it.

[Ray]

Yeti,

I can't see ya having too many probs with the oily bits BUT you may find yourself buying some 998 bits where both the 999 and the 996 bits are not suitable. e.g exhaust headers.

The wiring is a potential headache as well, again you might be better off trying to source a 998 loom rather than mix and match and or adapt a 996 and 999 loom.

The side panels on the fairing are different as well, you can just butcher a 996 panel tho if you mount the coils as per 998. I have seen 998 with 996 panels cobbled on.

As with any job like this you won't run into any problems that time/money won't fix!!

I can't help thinking that it would be a load easier just to buy a 998s or 996r or 998r take yer favourite goodies off yer 996 that fit the new bike and sell off whats left. Less cost and far less hassle in the long run maybe?

To really know where you are with this before you start you could do with your bike, the 999s and a 998 lined up together and play "spot the difference".

a 998r has the same engine as a 999r 2003/4
a 998s has the same engine as a 999s 2003/4

in both cases the basic engine architecture is the same its the bits like headers, wiring and plumbing that differ.

Ray.

[Edited on 8-10-2005 by Ray]

[yeti]

Don't get me wrong, I would dearly love a 998R, but can't find one for sensible money, bearing in mind I'm gonna track it, and have been offered a 999S for around £5k. Hence the question.

[Bungi]

i ran a post recently on this testastretta into a 748 frame type subject, apart from the already mentioned wiring loom etc, you will need to ensure that your using a frame that was orignially testastreta engined frame as the cross bracing is differant.

however i understand that this can be sorted out if you take your frame to a frame builder to alter, of course youl need a pattern from the right type of frame.


if you opt against this project id be interested in the engine you have ldentified? :D

[mikesps]

Anyone know if the swing-arm pivot in the 999 cases matches the 996 or the ST4, or is it a third size?

[Rob B]

Hasn't Skids already done it??

[yeti]

Have decided not to bother. Gonna turn my efforts to finding an 998RS. No doubt it can be done, but it's gonna be a nightmare.

Thanks for your comments. :sing:

[Felix]

Originally posted by yeti
Gonna turn my efforts to finding an 998RS.

Good man!

[skidlids]

Bit late getting to this topic as Yeti has already made his decisiion and I was busy over the weekend.
But I thought I would add some comments as Rob has pointed out I have put a 998BP Testastretta engine into my 748RS chassis.
As some 999 engines aren't to different from the 998 I suspect I could have made one of thos fit as well. In my case fitting the Testastretta engine was time consuming as I tried to get hold of 998 bits as a lot of them are different. These include the Harness, ECU, Radiator and Fans, Oil cooler, Airbox and Exhausts.
The Airbox is larger than the normal 916 airbox so ideally needs the 748R/RS/996SPS Foggy Rep type frame. The Testastretta engine also uses 10mm engine mounts just like the 748R/RS.
As all the bits for the harness took such a long time to source I started to think about trying a 748R complete harness mated to the 998 shower injectors and then would have had to have got a custom Chip mapped to suit.

As for mikesps's question about the crankcase swing arm pivot I would be interested to know the answer. As a future project will include a 999 and my Dymag Carbon single sided swingarm.