Luckiest man on the planet

[alkema]

I was searching for a nice exhaust manifold, in my opinion the best manifold`s you can get whas the Peter G and the KRB one. I preferd the Peter G But there was yust one problem, there were only 3 made so it wood be a miracle when you get one! That miracle is happened, i`ve got one. i`m so happy I had tho show it
I will use it in my Audi RS2, that project will start in the summer!

hire some pictures

[S2central.net]

Some has been practising their welding skills - pretty nice alright !

[Jamo]

Why would you want runners that long out of interest? Seems a tad excessive IMO

[S2central.net]

I hadn't really noticed that... Just on the quality of appearance... Is it really that excessive ? Any other pics of custom tubular EMs to compare with ?

[Jamo]

They are longer than a standard tube manifold however looking at it now it looks like every runner is equal length which would be why it would be so highly desired.

[S-Express]

I seem to remember reading that equal length is not important on a turbo because of the back pressure caused by the turbo negating any scavenging effects obtained by equal length pipes?

[S2central.net]

Funny - I always thought that equal length palava was just for non turbo engines... I suppose we are to believe this equal length means that the pulses of gas from each cylinder will arrive beautifully synchronised at the hot side of the turbine for the most efficient input of energy ?

[aelred]

I seem to remember reading that equal length is not important on a turbo because of the back pressure caused by the turbo negating any scavenging effects obtained by equal length pipes?

This is also what I understand. Infact I have been told that rally evos when running equal lengths manifolds they produced less power in their Grp A cars a few years ago. Mitsy were not WRC, like the rest of the top teams.

I must say it is a beauty, I would have preferred expansion joints on such long runners if I was going to be critical.

[CREASE]

JBS seem to use equal length mani's on alot of their VAG 1.8T upgrades, get some big power too! I realise the mani is just one small link in the chain but they must have their reasons?

[urquattro-island]

yes

peter g was one h... of a welder RIP. Its an awsome tubular mani.

[Bram]

Why don't you just contact Cees as he can make you the sweetest tubular in the world, the way you want it to be build.

[goodall]

longer length is better for lo down power, judging by those runners they be optimum about 3k there abouts perhaps, so im guessing this will help increase power before and during spool. also theres the good pipe size on that mani and id imagine that having the pluses at good intervals would surely help turbo efficiency as the gases would be able to produce a nice smooth laminar like flow. and the collector con be arranged in sequence so that 1-2-4-5-3 in the same direction at the turbo spins or opposite not sure on that... might be worth something idk

[Jamo]

The longer the length the more spool time is exponentially increased so I can't see how it is good for low down power so to say.

[goodall]

http://www.burnsstainless.com/TechArticles/Theory/theory.html

example of header design theory

longer length in n/a motors means more low down power, considering before boost the motor is n/a and since the turbo spools with a amount of gasses produced by a amount of power it should spool quicker but the gasses may have got cooler by the time they reach the turbo with long length but the pipes fairly well bunched together and sum wrap solve that issue

[Jamo]

http://www.burnsstainless.com/TechAr...ry/theory.html
example of header design theory

longer length in n/a motors means more low down power, considering before boost the motor is n/a and since the turbo spools with a amount of gasses produced by a amount of power it should spool quicker but the gasses may have got cooler by the time they reach the turbo with long length but the pipes fairly well bunched together and sum wrap solve that issue

Does not apply to turbo forced inductions cars my man.

As the turbine in the turbo is fed by exhaust gasses to spin the turbo's turbine wheel, the shorter the length the quicker the spool.

The longer the length the more spool time. This is fact ask Jogi for reference.

Longer pipes will help with high bhp which is why tubular manifolds are used with larger turbos as there comes a time where the shorter length manifolds cannot hold the amount of gasses produced by the engine and a bottle neck situation occurs.