NITROUS OXIDE ( nos / n2o ) advice forum

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

This all reminds me when I were a lad, and a kid I knew was busying himself away on two cars at once. One was a Fiesta which he converted to rear wheel drive and fitted a 2 litre turbocharged motor in it. The other was a mini with a one piece front and all sorts of stuff going on under the bonnet. Brings back good memories!

Only 2, what a lightweight, lol
(ive got 7 flipping cars at the moment!)

ive seen this one in the flesh....very tight under that bonnet!

it is however even ugler than it appears in the pics

Nah, you saw Rich's ("large" who used to use the old board), you havent ever seen my one mate.

i thought that was your one at riches?, it even looks like his shead that the car was in?

hell, i suppose all minis look alike anyway

Mine WAS at rich's but not for the last 3 years or so.

same shed diffrent car?

Yeah, or same building different shed, depending on how you look at it. LMAO

So what happens when you do finally finish these cars, do you enjoy them or sell them off and start new projects as many do?

I will be keeping this one almost indefinately i should think.
Its kind of my ultimate car, i love minis, always have, and this is pretty much the one ive always wanted.

The integra i may get rid of at some point, but probably not, i think now ive got to the stage where ive pretty much got all the projects i want and i dont think ill start any new ones, will probaly just keep all my cars and then when i have the time revisit them all and do things a bit differently.

Im not into building cars then getting rid of them just to start a new one like some people are.

I suspect the mini may ultimately end up 4WD as well to be honest, but i want to run it FWD only for a couple of years first as it should be quite competitive as a FWD car.

iv'e spotted a fundamental error there chip ,its got too many main bearings , .


NOW,!! i do have a 4wd mini,lol



carl

Yours has one more main than mine does actaully mate!

When you out next with your animal of a mini?

I'll try and pop along if its at the pod or avon park (york is a bit of a trek sadly!)

I assume you will be at the mini showdown if i dont see you beforehand?

First will be easter w/end at york but definatly at the showdown.

i'd realised the mains point aftewr i'd posted it ,lol
6 main bearings !!! whaaaaahaaaaaaaay.

carl

Im at the nurburgring at easter, so definately cant make that one, but ill see you at the showdown for sure mate.

I think i might nitrous the cabrio for it if i get a chance to get it back on the road again, what date is it?
(im so not in the mini scene at the moment im afraid i dont even know when big events are!)