gas porting pistons?

Anonymous · Post by **Anonymous** » Wed Sep 07, 11 11:11 pm

I have now got the quote for my new pistons.
The original pistons were gas ported and wondered about the merits of this feature.
so the question is "to gas port or not" that is the question

Anonymous · Post by **Anonymous** » Wed Sep 07, 11 11:37 pm

This is an interesting site and I think I may have answered my own question.

http://www.rehermorrison.com/blog/?p=29

go to link click on tech talk and go back to tech talk 22 interesting stuff.

mopar_mark · Post by **mopar_mark** » Thu Sep 08, 11 1:08 am

Knightcharger wrote:
go to link click on tech talk and go back to tech talk 22 interesting stuff.

http://www.rehermorrison.com/blog/?p=290
To save all that clicking . . .

Yes, I would gas port, as done previously

I guess your still using custom pistons, so gas port cost is not really an issue & in consequential really

Anonymous · Post by **Anonymous** » Thu Sep 08, 11 1:21 am

Yes Mark still going Venola but bore now 4.450 and looking to use low friction rings.
also looking for a dry sump oiling system

mopar_mark · Post by **mopar_mark** » Thu Sep 08, 11 8:06 am

Knightcharger wrote:Yes Mark still going Venola but bore now 4.450 and looking to use low friction rings.
also looking for a dry sump oiling system

More out of curiosity, what dry sump systems you looking out ?

I looked into Dry sumps recently, was looking at 3 & 4 Stage systems. They can work out pretty expensive unless you can get hold of a 2nd hand unit.

I decided to put it on the back burner for a while, as I had a few essentials with higher priorities I needed. Also there's plenty of high HP running without them & 'touchwood' oiling has not been a problem for me so far.

Thats not to say, I won't go that route at some time.

db · Post by db » Thu Sep 08, 11 10:23 am

Never heard of gas ports before!
I love finding out about techy stuff like this for the 1st time, especially when it's explained well like that

Anonymous · Post by **Anonymous** » Thu Sep 08, 11 12:47 pm

H Paul, I agree I spent an hour going through all the other tech stuff on the site and it makes interesting reading the guys obviousley have a great amount of knowledge and experience and they explain things in a way Dumbo's like me can understand

Mark checking out the dry sump oiling on summit they work out very expensive and the pipes and fittings swill tank, heaters and breathers all add to the costly add on but after my oiling issues last time out I figure I must sort it out or I will be back where I started.
I found some cheaper 2nd hand options on USA e bag here are a couple.
http://www.ebay.co.uk/itm/160635726099? ... 1505wt_714
http://www.ebay.co.uk/itm/190571724355? ... _566wt_714

Anonymous · Post by **Anonymous** » Thu Sep 08, 11 1:00 pm

Bump Mark can you remember if you sorted out the valve to pistons clearances I fig I need to check this before ordering.

mopar_mark · Post by **mopar_mark** » Thu Sep 08, 11 4:29 pm

Knightcharger wrote:Bump Mark can you remember if you sorted out the valve to pistons clearances I fig I need to check this before ordering.

What do you mean did I sort it out ?

I worked it out at the time, all my docs for this motor were all in a large ring binder - which included, invoices, pamplhets, guarantees, engine spec, clearances, etc which I gave to the 1st buyer called Tufty.

For what ever reason, this did not appear to be transferred from seller to seller ? ? ?

I will check to see if I have any info still on my PC

Anonymous · Post by **Anonymous** » Thu Sep 08, 11 6:39 pm

That's what meant Mark if you worked it out at the time then I have a chance it is right as I have sent one of the original pistons to Venola as a sample.
I will still check but at least I know I am in the right ballpark
Cheers

Mopar Muscle Association UK

gas porting pistons?

gas porting pistons?

dry sumping