Twincam conversion for 1098

Post by **plastic_orange** » Sun Mar 12, 2006 1:45 pm

My mate's BMW K100 is an object of fun in the biking world - still, he likes it - even pulls a trailer with it. I sprayed it orange for him a while back, and it is easily spotted wherever it goes.
I can't really see the point of this conversion, when there are easier ways to get performance, but as an engineering exercise it is certainly interesting.
You could always use the entire K100 engine/box as it's inline with shaft drive - just unbolt it from mountings and push front end of bike forward - easy, but it's only 100bhp for the 16v. They have however been turbocharged up to 200bhp.

Pete

Post by **jonathon** » Sun Mar 12, 2006 1:59 pm

I agree Pete its an interesting exercise, but I feel that just because something fits ,it doesn't mean it is suitable. Engine design is now a very fine art of managing temperature changes,engine harmonics and cooling. Bike engines are regarded as being of a more advanced design that cars, so there well be a mismatch of design in this case. I'm by no means against free thought and mechanical inginuity, but for a road car, this mod seems a little over complex. There are much easier ways of achieving this type of power output with less radical modifications. Bike engined cars are normally only sucessfull when built for the track. As an answer to everyday demands to driving I think that they are totally unsuitable, despite offering a thrilling experience.A bike motor into a moggy, would be interesting but too much weight would need to be lost, then there's the need to re balance the cars weight,suspension and braking perameters. There are easier, cheaper and better ways of achieving this.

Post by **6thdude** » Sun Mar 12, 2006 3:45 pm

Remembered!
"KAD" do a 16v head for the A-series!! http://www.kad-uk.com/engine.htm

Personally I fancy a Saab 9000 2.3T in the boot

brum brum. I think a space frame chassis and a few other minor mods would be needed though:)

Post by **bmcecosse** » Sun Mar 12, 2006 7:11 pm

The old standard alloy 8 port head makes a huge difference to an A series engine - i was involved with building one of the very first of these in 'privateer' hands many moons ago. Even with the 'sprint' camshaft (310/300 timing) that engine (still at 1293cc) had fantastic torque right up through the range - on twin 40 webers.

Until recently there was someone on here had a K series engined Traveller - anyone know what happened to it ??

Post by **jonathon** » Sun Mar 12, 2006 7:39 pm

Yes Nikki had one of our K series travellers, but has now sold it on to restore the love of her life. There are 8 other JLH Kseries cars out there but none of the owners contribute to the forums. There will be 5 more K cars hitting the road this year. The most powerfull being a 200bhp traveller, with all of our handlig braking packages. We are hoping to have this finished for the National Rally, but the car is undergoing a massive full rebuild and an intimidating spec list. If I knew how to post pics (or had the time ) I'd be happy to post the rebuild as it progresses, if anyone is interested.

Post by **Onne** » Sun Mar 12, 2006 7:40 pm

For pity's sake, surely you MUST remember who owned it. It's the very sparkling Nikki aka Multiphonnikks!

Naughty naughty BMCecosse

Post by **bmcecosse** » Sun Mar 12, 2006 7:56 pm

Couldn't remember who had it - but surely it didn't last long. Were there problems ? Good excuse for a 'plug' there Jonathon !

Post by **bigginger** » Sun Mar 12, 2006 7:59 pm

There weren't. Do a search for some of Nikki's posts - she does tell pretty much the whole story, just NOT in the mechanical section, which might be why you've missed it.

Post by **jonathon** » Sun Mar 12, 2006 8:01 pm

I detect a miscievious question here BM. No, Nikki had her own reasons for selling the trav. Its not my place to answer this question for Nikki, but I'm sure she will be able to enlighten you soon.
The trav is now owned by one of our other customers who does sometimes write on this forum, and will hopefully be testing his and its limits on the track in the near future.

Post by **Peetee** » Sun Mar 12, 2006 8:21 pm

hopefully be testing his and its limits on the track in the near future

Weehee! Will they be needing any passengers to balance weight distribution/aid traction?

Post by **jonathon** » Sun Mar 12, 2006 8:29 pm

You may well be in luck. I've been invited to take part in a charity track day at Goodwoon next month. As my moggy is still in bits, I thought of asking Hebes new owner. There will be loads of other classics and 3 race instructors on hand to give free advice. As its a charity event passengers must offer paper money in return for a ride, normally about 8 laps, but be warned one lap is enough at speed around Goodwood, especially when pulling over 125mph past a Carrera on the back straight!!! YeeHaa!!!

Post by **bigginger** » Sun Mar 12, 2006 8:35 pm

Nikiki still has Hebe - the 'K' was/is Carrie

Post by **Multiphonikks** » Sun Mar 12, 2006 8:38 pm

bmcecosse wrote:Couldn't remember who had it - but surely it didn't last long. Were there problems ? Good excuse for a 'plug' there Jonathon !

OH do shut up, BMC.

If you MUST know (and I actually said on this forum several times) it was sold to help pay for some much needed medical care for a much loved family member overseas.

I would love to still own the traveller but selling it was the best way to pay to help keep a family member alive.

I don't want to go into it on here but I do wish you'd stop laying into people who have a car which isn't standard. Modifying minors isn't a sin. JLH K series cars are well researched and built and not just "thrown together". Please stop trying to find fault with anyone who has anything other than a bog standard minor or people who do things differently to yourself. It's frustrating to have to constantly defend other people's points of view and quite frankly I'm getting tired of all these "I know better posts" that several forum members have developed recently.

Grrrrr.

The K series is alive and well...Just not living with me.

Remember. It's a free world. There are viable, well-engineered alternatives to an A series engine, and valid reasons for people wanting them!

I appologise if I'm stepping out of line.

Nikki

I am planning the engine for Hebe to be EITHER a 1275 A+ or a 1.4 K series. Which I choose will depend on what sort of car I want to have...

Post by **jonathon** » Sun Mar 12, 2006 8:45 pm

Appologies to Hebe for calling her Carrie sure she won't mind. Thankyou Nikki for the comments, and I do tend to sympathise with your other comments, even if they may be deemed as stepping out of line.
Best keep that 1.4 K to one side then

Post by **wanderinstar** » Sun Mar 12, 2006 8:45 pm

Nikki ,
Dont you fancy a twincam head on that 1275 a+. That would be a flyer. Apparently there are 2 firms that do them KAD and MORSPEED.
Ian.

Post by **bigginger** » Sun Mar 12, 2006 8:51 pm

jonathon wrote:
Best keep that 1.4 K to one side then

MINE! ;)

Post by **Multiphonikks** » Sun Mar 12, 2006 8:55 pm

Ian, it's not the speed that attracts me. It's the fuel economy and power on the freeway

I would like a car which will do motorway and freeway work and hold it's own with the traffic. While the UK is pretty good with cars which go at 70 the US (in my experience) isn't so good. The speed limit may be 55 but on the freeway most people seem to go a lot faster. I hope Canadian limits are stuck to (which I am told is the case) but we'll be taking Hebe south now and then to visit 'MeriKate's folks in DC

Post by **jonathon** » Sun Mar 12, 2006 8:55 pm

FIGHT !!!!!!
You know reading that reminded me of the seagulls in Finding Nemo

Post by **bigginger** » Sun Mar 12, 2006 8:59 pm

????????? Never seen it!

Post by **Multiphonikks** » Sun Mar 12, 2006 9:00 pm

Awewwwww. isn't that sweet?! (I think) ;)

Jonathon - if the trav is the one I think it is you can send me some picture and I'll see what I can do

Nikki