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

[david_white]

Re: a very powerfull and troublesome bmw 316

Yeah I was thinking a strong set of caphead allen bolts might be the easiest answer too

The damper may be trickier as you have to get all the angles and rates of expansion dead right or it will hinder more than it will help.

Manifold looks good and strong now though, will you still use K nuts when nut and bolting it to the adapter thingy you bought?

[Retromotorsport]

Re: a very powerfull and troublesome bmw 316

[Graham]

Re: a very powerfull and troublesome bmw 316

i attacked the manifold with a reamer last night and opened up the manifold holes to m8

heres a bmw manifold gasket laying onto of a yb one, the ports on the bmw are enormous by comparision

once i'd opened out teh holes in the gaskets to 8mm thers only just enough material left to form a seal

not much room here!, thers just enough for an allen bolt, but i will probably use studs and slide a spacer over them to space the nut away from the thickest part of the pipe so i can get a nut on and do it up

not much room this side either

[Graham]

Re: a very powerfull and troublesome bmw 316

manifold bolted back on engine tempoarily with a couple of allen bolts, i will sort the studs and spacers later when the engine comes out

from above, if your wondering why it sits at an angle its because it made for the easiest fabricating and nicest shape to the manifold and allows a gentler turn in the downpipe

turbo bolted on

all the bolts for the turbo and its adapter flange are still accessable

with the actuator bracket mocked up and tacked into place.

[longboy]

Re: a very powerfull and troublesome bmw 316

nice use of latex gloves there graham

[david_white]

Re: a very powerfull and troublesome bmw 316

Nice position for the turbo Graham, I take it it clears the bonnet ok still?

How do you decide the angle of the actuator, as the angle where its attached the the turbo looks bigger than I've seen before, or is it simply not that critical and can be adjusted on the thread

[Graham]

Re: a very powerfull and troublesome bmw 316

well it will sort of nearly clear the bonnet!

i am expecting to have to have a bonnet bulge.

re actuator angle, i dont think its that critical, i simply fitted it where the rod gave the nicest freest movement of the wastegate, i will sort the adjustment out later, but on this engine anyway it only just wants enough tension on it to barely hold the wastegate shut otherwise the boost comes in far too hard far too early

[jono_misfit]

Re: a very powerfull and troublesome bmw 316

i'd love to, although i suspect it would piss us off, as i think the team are pretty much told what they are going to do, otherwise when there are a couple of different ways to solve a problem i.e low weight/ small engine or heavy/big engine why do the two teams never take the same route

The experts are told the problem in advance and come up with a design to submit. If both experts come up with the same design on is told to come up with a different one. My flatmates dad was an expert on one episode and one of my lecturers was a judge.

Good work with the car. Is the downpipe going over the top of the engine?

[Graham]

Re: a very powerfull and troublesome bmw 316

Good work with the car. Is the downpipe going over the top of the engine?

yeah its sort of, its more going round the back of it slightly above it, similar to what it always has done but this time im tucking it into what was the heater plenum doing it that way i still have room to get it round the back of the head even after moving the engine back,

actually the real tricky bit is totally reshaping the front pipe but without buying any new bits of pipe!

[Graham]

Re: a very powerfull and troublesome bmw 316

did the front pipe this evening, its only tacked together for now, just got to make up a couple of supports and then work out some sort of damper/mount for the turbo and check/sort the oil drain for fittment then its a case of take the engine out and tidy up the engine bay

[david_white]

Re: a very powerfull and troublesome bmw 316

That should de-mist the screen nicely too Graham

Must say looks a better setup now, should prove more reliable too once its all done. Looks like you should be ready for the start of the season being as you've done the major work before xmas

[Snickers]

Re: a very powerfull and troublesome bmw 316

woow thats a huge turbo what about the plug wires are you going to have any protection incase they get burned from the exhaust heat?

[Graham]

Re: a very powerfull and troublesome bmw 316

turbo isnt that big its a T38, and gives near T4 power but with less lag

re plug leads they are magnacores which are very robust but they wont be quite as close as it looks in the pics as long as they dont flap around they will be ok,

[Snickers]

Re: a very powerfull and troublesome bmw 316

turbo isnt that big its a T38, and gives near T4 power but with less lag

re plug leads they are magnacores which are very robust but they wont be quite as close as it looks in the pics as long as they dont flap around they will be ok,

oh ok hehe and to help even more you could probably heat wrap the exhaust to keep inbonnet temp cooler

[Graham]

Re: a very powerfull and troublesome bmw 316

unfortunatly i've found heat wrap only lasts a couple of hours round turbo downpipes, i wouldnt mind if it was cheap but its well expensive