May interest some of you if you are really bored, but probably not, lol
This is the engine im planning on using to get 500bhp into my mini.
Close up of a couple of bits of prep ive been doing so far:
Nasty bit of casting in the block under the bearing tunnel which has got "stress raiser" written all over it
You can also just about make out in the above picture where ive "broken th edges" on the block around all the machined edges, every edge has been radiused sligthly in order to better distribute stress away from it.
Casting lines also taking out the main block walls
Block has been line bored, as the bearing tunnels when i measured them had stretched out of shape, they were 1 thou over size in the vertical plain and a quarter thou under size in the horizontal plane.
Next job is to get the sump cut flat using the bearing tunnel as a reference to make sure there is no run out on the bottom of the block, then the top face of the block will be cut level, so that its perfectly parellel with the bearing tunnel, then just a case of boring it out and i will know that the bores are exactly perpendicular to the bearing tunnel so the pistons will actually be coming up and down nice and straight.
Then ive got to dry build it, measure what the CR is and then adjust it to make sure its its the 8:1 im aiming for.
Im only getting to spend an hour or two a week on it at the moment, so going to be bloody ages before its finished, but just thoght id post up anyway as a work in progress thing
Here is where its going!!!!!
Few pics of the mods to the front coming along, the engine in place is a 1800 8v astra engine on twin 40s, this is just for development to get it up and running, as its the same basic layout as the turbo motor and marries up to the same box etc.
So this way i can be building the car up at the same time as the engine.
Chip