Page:
Home > General Chat > is this normal

billydude

291 Posts
Member #: 48
Senior Member

Leicester

11th Jun, 2004 at 12:35:51am

when I had my head off I could'nt help but notice the chamber's are a browny colour sort of like a fake sun tan *laughing*
since this is my first turbo car I don't know but I suspect not from my N/A experiance *wink*

it was running a touch rich and used to get a touch warm when used in anger


wil_h

User Avatar

9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

11th Jun, 2004 at 07:19:34am

I definatley say heat related. mine dosen't look that colour.

Is this after youve' cleaned it? it looks very clean.

What spec is the engine: Boost?, intercooler? ignition?

Wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


AlexF2003

5795 Posts
Member #: 80
AFRacing LTD

Newbury, Berks

11th Jun, 2004 at 08:27:38am

IF thats after cleaning it might be the coloration from over heating...

I'm guessing here not seen that before!

alex

AlexF

billydude

291 Posts
Member #: 48
Senior Member

Leicester

11th Jun, 2004 at 09:47:03am

it's a standard mg turb bottom end
boost before I took the head off somewhere around 15 psi'ish (but shitty TIM boost gauge so not realy sure )cossie IC standard turbo ignition

I've never had a head with a sun tan either till this one *laughing* yup that's after cleaning I wish it stayed that clean while thrashing it *laughing*

it seem's ok on the car asin no hassle's it had even compression etc when I last checked it never smoke's even with 2 lifted valve stem seal's *smiley*


wil_h

User Avatar

9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

11th Jun, 2004 at 10:11:45am

I'm sure someone else knows better, but I reckon a bit to much ignition advance or slightly lean fueling on an engibne running 15psi could easily get very hot and result in the 'tanning' you've got.

The pressurised mixture burns hotter anyway but as I say mine doesn't look like that and I run more than 15psi.

Rolling road session might help?

Wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


billydude

291 Posts
Member #: 48
Senior Member

Leicester

11th Jun, 2004 at 10:18:01am

it had been running more than 15psi for a while I suspect with an indicated 8psi *blush* due to the bulb on the boost gauge stopping it reading more than 8psi *laughing*

I've been keeping the boost down since it went back toghether *wink*
I like it on lower boost less lag and that stupid dump valve ain't so friggin noisy *wink*

I suspect a RR would do it the world of good maybe
but it run's great and sound's great but drink's petrol *laughing*
Home > General Chat > is this normal
Users viewing this thread: none. (+ 1 Guests)  
To post messages you must be logged in!
Username: Password:
Page: