inlet manifold work?
Turbo Mini Forums

Just a few questions that have been bothering me latley, first up, i remember a bloke once telling me that running a centre punch across the inside of an inlet manifold to "roughen up" the face that the fuel air mixture runs across could improved combustion by mixing the air and fuel together better, is this true? and if so would it be worth while doing to a turbo inlet manifold?

The other thing i'v been thinking about is the sort of heat i would trap in the inlet by polishing and chroming the outside of the inlet manifold, reducing the surface area on the outside of the manifold would reduce it's ability to shed heat im guessing(?), but by how much, would it be noticable when running a deasent IC and bonnet scoop? I dont even know if i wana polish and chrome the manifold, im just after oppinions?

Cheer's. Chris

(is this thread better off in technical chat??)

Edited by clubby_turbo on 29th May, 2007.

998 turbo

That first comment would be true - if your inlet was nicely polished on the inside - but you'll get similar results just by giving it a rough finish with grinding stones

As for how much heat it would "trap" ? I'm guessing not even enough to measure, but I could be proved wrong if someone would be willing to experiment?

"Computer games don't affect kids, I mean if Pac Man affected us as kids,
we'd all run around in a darkened room munching pills and listening to repetitive music."


Kristian Wilson, Nintendo Inc, 1989.

No point in trying to trap heat in the inlet manifold, it will just reduce your power potential.

You want to lose heat, that's why we use Intercoolers.

Edited by Paul S on 29th May, 2007.

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."

yea, thats what i was gettin at, trying to weigh up the "pretty" value against power loss, i was thinking with a bonnet scoop and IC, the difference wouldnt realy be noticable?

Cheer's for the speedy comments. Chris

998 turbo

FFS, if you want to be pretty, wear a dress.

EDIT: No offence intended

Edited by Paul S on 29th May, 2007.

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."

let us know how you get on nic! lol

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

axel, are you! pretty then....lol

dont forget the high heels size 13 Nic,
sets the dress off well

Hi,
Pics! LOL.
How did we get from inlet manifolds to Nic in a dress?
Cheers,
Gavin :)

Edited by Bat on 29th May, 2007.

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary

benross sounds like hes going on from experiance! lol

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

does this make me a tart then?

Not at all mate ...... have fun bringing the rest of the car up to as shiney a state ..... once you start with one bit you won't be able to resist .....

Have you sealed that polished alloy? If not it will dull off very quickly again.

Do you fancy doing mine for me ...?

Every day is a school day ...........

How fast and how expensive ...... the same question...

lol, no offence but no chance mate!

took me ages to get that inlet and dashpot polished up, still loads of bits on the inlet that i couldn't get the polishing wheels into, but it's covered up by my IC pipes anyway

I'd finish it off with a coat of matt black if I were you

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."

noooo i've already matt blacked one perfectly shiney car, shan't be doing that again for a while!

haha cheer's for the reply's, a little off topic but good to see a polished manifold, atleast i know it's do-able now.

Chris.

998 turbo