Remote Turbo Manifold
Turbo Mini Forums

That looks excellent!

[X] nail here for new monitor

it looks like it will flow better...

So it is for the miglia (different engine steady) ?

Is there any room left for the downpipe ?

What about the clutch slave cylinder ?
Is it moved out of the way or just heat shielded ?

Rusty by nature

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Well done Paul, that looks fantastic
however i keep asking my self does the benefit of having an equal length manifold out weigh the fact 2 of them have a 180degree bend and the increase in potential heat loss

Yes i moved to the darkside

Instagram @jdm_brett

It looks a similar design to what some of the big power hondas use :)

very nice Paul, what diameter tube did you use?

1972 998 TURBO SLEEPER

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Rusty by nature

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

nice paul, well out out my pond but i think i know what your aming for, looks bloody good mate :)

Fair enough.

And yes, I'll be happy to apply whatever lenght you calculated

Rusty by nature

The manifold looks great Paul. If Wintersurfer's car is anything to go by, it should work very well.

Yes, my opinion of side mounted turbos has changed since Wintersurfers car has been running. 160 nanas at 10psi!

In the 13's at last!.. Just

Wintersurfers results from the rolling road were definately a factor in the decision.

Just trying to understand why Vizard recommends that all LCB/3-1 manifolds should be 25" long. It all seems to fit with the maths, but should we apply the same theory to turbos?????

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

I think we should apply the same theory or at least similar,

Although I have not seen any maths to back it up allegedly the same rule applies as the inlet lengths according to graham bell, (see my post in our inlet length thread) ie the diameter sets the optimum rpm and the length biases this higher or lower.

I'll post the relavent pages when i get a chance.

Well, the lengths given by the Engleman equation are a little longer than the recommended LCB lengths. So I've de-constructed the Engleman equation:



The fact that it halves the resonant frequency means that it gives the length/rpm relationship that provides a negative pulse 180 degrees after the positive pulse caused by the exhaust action.

Now, to my mind, that may be a bit too late to make the most gain. I may be looking for fog in an empty dish though

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

c) z ???

2 perhaps?

hang on,

if you apply engleman, then length or bore has no effect....

Yes c) it's 2 not a Z.

Engleman uses the length and bore in the A and the L.

Something to do with resistance and capacitance ratios in an electrical analogy.

I'll post a long hand calculation tomorrow.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Ah ok, i was wondering were 2 cam from lol,

looks like i'm thinking of the wrong engleman...

x=0

http://en.wikipedia.org/wiki/User:Engleman/coolthing

Yes, wrong Engleman, Joe.

The formula used above came from here:

http://www.s2ki.com/forums/index.php?s=&showtopic=174084

They state a number of sources, but I can't verify them. That's why I broke the equation down to understand how it works.

It's the halving of the result by © that times the negative part of the pulse back to the valve as the piston reaches TDC.

I'm expecting a very expensive book on manifold design for Xmas. Hopefully that will shed more light on the subject.

EDIT: The (b) and (d) part of the equation are verified here:

http://en.wikipedia.org/wiki/Helmholtz_resonance

Edited by Paul S on 15th Dec, 2010.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."