HI guys sorry I havn;t taken any pics as of yet I have been a little busy to work on it.
But I have been thinking, There is a combination of everything causing this dettonation, But I think it can be cured by sorting out cam timing increasing duration, acceleration and lobe seperation angles. I...
Hi all, I need some input from different directions.
I have built a few supercharged (1bar MAP) engines running 9:1 comp ratio, now on these engines one has got a normall head, no porting etc etc, and on the second engine it has a worked head, ported, using bigger exhaust valves.
They both use...
HI there, I have an old production drawing and on it the material specifcation calls for TL-4223. This is a German drawing from 1987. does anybody have any idea as to what grade steel this would be today?
many thanks,
Liam
UPDATE:
Hi thanks for all your help on this but unfortunatly due to budget restraints we are unable to use the Dupont material.
At the moment we are considering some other materials and are trying to find alternatives to te CR6100 series.
Ian how did the molydisulfide copper filled ptfe compare...
HI thanks very much for the insight into the VESPEL CR6100 after doing a search for it Google came up with some very enlighting information. This seems particualrly suited to enviroment we will subject it to.
Again thanks very much for the replys. I will let you know the outcome of some further...
Hello.
I was wondering if anybody is able to help me out with a dilemma.
At this time I am using compressors which have apex tips made out of PTFE with a 60% filling of bronze.
The displacer is a magnesium (8%) aluminium alloy and the housings are aluminium. We are subjecting the displacers to...
