Bike engine Race car power upgrade

[dyno-tron]

A bit of progress :-)

The 600cc engine is almost out, needed to keep the wiring loom together so I had to remove/butcher the firewall to avoid cutting all the wires. However - with the firewall out it will make fitting the bigger engine easier.

Photo of all the bits I've collected that need to go in, I'll use the original sprint fuel tank but with the bottom chopped off and a flange welded in it's place, this will have the CBR1000RR fuel pump. Due to the shape of the tank and that the pump has it's own pressure regulator I won't need a swirl pot, regulator, return lines etc. It will just be the tank and one supply pipe so will be much neater.

I'm also going to change the differential (3.62) to one with a 3.32 ratio, it already runs out of revs with the 600 so with the 1000 it will need something a bit taller. This require
the driveshafts to be replaced 'cos the splines are different, already got those due to a previous mis-purchase some time ago :-)

The 1000 loom has been stripped of tape and plastic former stuff ready for surgery.
Also a photo of my new wiring loom board, ready for the snake pit of wires to be added, thinned & extended.

The list of things to do seems to be growing

 

[dyno-tron]

We have a missed opportunity for a really interesting project. Can we get the full story from the beginning?

What plans do you have to compete?

Sorry for late reply - I didn't build the car, I acquired it two years ago with a dead engine which I swapped out like-for-like. Since then I added an electronic shift system + paddle shifters, Carbon fibre front wing & new wheels. In sprints I was usually the only 600 so was lumped in with the <1100cc class (still did OK :-)). So now I'm changing the engine to "level the playinig field"

 

[ukracer]

Ok, I’ll give a running commentary (sort of)

It’s a bike engine with its gearbox, sprocket replaced with a flange, driving a very short propshaft, into a sierra diff as @tigdlo correctly identified

Didn’t build it myself, it’s a “factory” build but plans can be purchased to make your own.

Cheers!

Where do you race it?

 

[dyno-tron]

Where do you race it?

Aintree and Anglesey so far, planning to do a few more next season.

 

[dyno-tron]

A small update:-
The 600 is now out :-)



With the 600 out of the way I've trial fitted the 1000 to see if it actually goes in and what adjustments need to be made and design new mounts. The gearbox arrangement is different on the 1000 and it conveniently lines up to the diff better than the 600, however - it's a bit closer so I may need to make a new shorter output flange.



I decided to cut down on clutter so the water pump and all the associated pipes have been removed. I've made a blanking plug for the water pump hole and a retaining plate (pics to follow).
The water pump will be replaced with an electric pump and a lot less pipage, controlled with an Arduino Micro which will optimise warmup and cool down.

As this car is a "project" I'm also going to electrify the clutch actuation - F1 style with an extra paddle on the steering wheel, I have the servo but need to work out the paddle switch design, maybe a single paddle "analogue" with a pot or strain gauge. Some use a two paddle system - release one for creep, release both for launch. Not sure about that yet .

Keep on swimming!

 

[Kayos]

Fantastic project

Bike engined car was always on my list, had a (relatively) rust free Chevette but life, the universe and everything got in the way

Would love to see it on a run

 

[dyno-tron]

The water pump hole bung, could have bought one but it’s about £90 so I made one myself :-)

 

[dyno-tron]

Fantastic project

Bike engined car was always on my list, had a (relatively) rust free Chevette but life, the universe and everything got in the way

Would love to see it on a run

I’ll post a video clip of it with the 600cc engine when I get a few minutes

 

[ukracer]

The water pump hole bung, could have bought one but it’s about £90 so I made one myself :-)

View attachment 471184 View attachment 471185 View attachment 471186

That's the sort of stuff I wanted to get into. Supplying parts to part fund a hobby

 

[dyno-tron]

Finally made a bit of progress on the car!
Engine position worked out and mounts made, they just need painting now & also need to get some colour matched paint for the chassis.




Next up was fitting a new uprated clutch suitable for racing, an easy job although getting the casing back on was a bit of a fiddle.

While the engine was out I also fitted a billet aluminium sump and baffle plate which should keep the oil closer the pickup round the corners.

Loads of jobs still to do:-
Design & build the cooling system water pump. I’ve got the most of the parts eg PWM controlled water pump, temp sensors, some pipes, Arduino micro controller (need to write the code for that, will probably get ClaudeAi involved with that).

Build new paddle shifter system, got the paddles - digital for the shift & analogue for the clutch. Got the servo for operating the clutch, that is going to be auto activated for the downshifts, and I already have the electric ram system and ignition interrupt which actually changes the gears.

Make (or have made) exhaust headers.

Modify fuel tank to incorporate OE fuel injection pump. Much cheaper and less complicated than an external pump, swirl pot and pressure regulator.

Make/cobble together a new dash panel to incorporate the bike speedo setup. I’m using that as it includes all the functionality I need.

Work out where to put the ecu & extend the wiring loom.

Just a few things to keep me busy lol !