A race bmw 316, m10, s14, m20, turbo, na, its been the lot!

[Graham]

Re: worlds most powerfull bmw 316?

As the car was a left hooker we could run the turbo straight down by the chassis rail.

a luxary i dont have! hense my down pipe going up and over and dropping out the engine bay where the servo and master cylinder used to live, made possible by having a mk2 escort bias pedal box fitted inside the car.

but i think lhd or rhd you would have to mount the turbo up high to get a decent shape manifold in the engine bay as due to the angle of the engine and that the front section of chassis rail in an E30 is quite high up.

[SandyMiller]

Re: worlds most powerfull bmw 316?

That car `Rockz

[Graham]

Re: worlds most powerfull bmw 316?

spent yesterday playing with the car on the rollers,

unfortuantly i left the camera at home

but the session went pretty well,
before touching it the engine had gained 10bhp over what was at the last session, obviously the lydden meeting had bedded the rings better or freed it up more.

making an alteration to the intake added a bit more power, a bit more boost followed, with some trick mapping with emeralds clever software, a tad more boost and we ran out of injector time we hit 100% duration- opps, and they are HUGE injectors in there already, so it was a case of cranking the fuel pressure up by a bar, and a fraction more boost and we have just enough fueling at the top end.

end result? its bad news in that i need bigger injectors to try and wring any more from the engine but its basically back to about what it was last year it might even be a bit up, but we were having trouble recording an accurate power figure, but i will say last years power/torque figs were 410lbt and 465bhp arnt far away from what we achived although im using more boost than i was then, which means IF i can come up with an exhaust manifold similar to last years with reliability then the magic 500bhp could be on the cards for 2008

i will post up a graph, but the top of it is missing, because we know its not right and i dont want the race paddock romour mill going into overdrive

[Graham]

Re: worlds most powerfull bmw 316?

[david_white]

Re: worlds most powerfull bmw 316?

Well done Graham, don't worry though, news of your new 600bhp set up will soon get around the paddock on Sunday

[Doug@g19engineering]

Re: worlds most powerfull bmw 316?

Graham,

What size injectors are you currently running?

I have a contact in canada who i can get large siemens injectors from for about £140 for four including taxes. Have had three sets off them so far with no probs.

If you do not want to spend extra cash go down the breakers and grab a set of vaux xe injectors or something. They are good for nearly 200bhp. Then run them as part of an 8 injector setup in the back of the plenum. Your emerald ECU has a very good/easy function for doing this.

You may also gain some power through the cooling effect on the air charge and better atomisation of the fuel being injected further up the inlet track.

The injector bungs are easy to make and you should be able use another stock fuel rail or braze/tig a new one up.

The problem with raising your static fuel pressure is that now you have 4bar of static under full boost your pump will be forced to deliver 6 bar of fuel pressure which is pushing it to the limit and it may burn out. Also check the wiring to your fuel pump as it will be drawing alot of current

If you have to make a new plenum give me a shout. I'm alright with a TIG welder and could knock you something up. We could call it sponsorship!

Doug.

[Graham]

Re: worlds most powerfull bmw 316?

cheers, thanks for the offers i will bear them in mind

the current the injectors are bloody enormous cant remember for sure what size they are 750cc per min rings a bell, they were quite a lot bigger than the grey YB ones i used previously, emerald got them cheap from the states for me the other year.

re double injecting, i used to have my atmo engine double injected but due to championship regs i cant do it on the turbo as it will force me to run in anything goes class A. and i like beating class A cars with my class B car


eventually i can see myself running in class A anyway, but not before i've moved the engine back a couple of foot

[Doug@g19engineering]

Re: worlds most powerfull bmw 316?

So class B cars can only have one injector per cylinder??

How do they deal with rotary engines??

You could just tell them that they are cold start injectors like you would find on bosch mechanical injection. lol

You could always put another 4 in the underside of the inlet manifold where they cannot see them!

[Retromotorsport]

Re: worlds most powerfull bmw 316?

You could always put another 4 in the underside of the inlet manifold where they cannot see them!

Ohh its ok.. i aint helping out on any classB cars

[tom burgess]

Re: worlds most powerfull bmw 316?

so i take it you are out on sunday graham?

[Graham]

Re: worlds most powerfull bmw 316?

So class B cars can only have one injector per cylinder??

yep

How do they deal with rotary engines??

class A only, but then how many rotary saloons are there?

You could just tell them that they are cold start injectors like you would find on bosch mechanical injection. lol

but then i'd have to shop myself to the organising committee- opps i'm part of that

You could always put another 4 in the underside of the inlet manifold where they cannot see them!

same again, might just be simpler and easier to get some bigger ones, anyway there wont be any more development this season, just need to hope it stays in 1 piece teh whole season!

[Graham]

Re: worlds most powerfull bmw 316?

so i take it you are out on sunday graham?

yep

[tom burgess]

Re: worlds most powerfull bmw 316?

see you there then.i will be wondering about helping whoever cos alex aint doing it.

[andypipe]

Re: worlds most powerfull bmw 316?

see you there then.i will be wondering about helping whoever cos alex aint doing it.

I had best watch out for any attempts of sabbotage then

[tom burgess]

Re: worlds most powerfull bmw 316?

when im not supporting alex ive gotta support the TS members aint i.gotta have good results either way.come on the TS racers