SR3 dry sump question
Discussion
Hi Everyone,
I've just completed a big engine upgrade on my SR3 from my trusty Gen 1 1300 to a pretty wild 1441cc.
One of the changes has been moving from wet to dry sump.
But, (and there always a but somewhere in an engine swap, right?) the system wants to purge into the catch can. At first I thought that it was because too much oil in the system, but it soon became apparent all the oil wanted to make a break for freedom. Because we were keeping a close eye on things on the dyno we caught it before anything bad happened. Whew.
The system is plumbed from the scavenge pump, to the cooler then on to an (old) Radical dry sump tank.
One thing I have noted that probably is wrong, is that I have the crank case breather going into a T with the oil breather line; but I don't think that is the reason for what I'm seeing, and I am changing it over the weekend.
There is definitely pressure blowing out of the oil breather line; and above 5000 RPM a trickle of oil develops, which becomes quite a flow at high revs. This is of course not a good thing and I need to sort it out
Has anyone had this sort of thing happen and can offer any advice please?
Thanks
Rich
I've just completed a big engine upgrade on my SR3 from my trusty Gen 1 1300 to a pretty wild 1441cc.
One of the changes has been moving from wet to dry sump.
But, (and there always a but somewhere in an engine swap, right?) the system wants to purge into the catch can. At first I thought that it was because too much oil in the system, but it soon became apparent all the oil wanted to make a break for freedom. Because we were keeping a close eye on things on the dyno we caught it before anything bad happened. Whew.
The system is plumbed from the scavenge pump, to the cooler then on to an (old) Radical dry sump tank.
One thing I have noted that probably is wrong, is that I have the crank case breather going into a T with the oil breather line; but I don't think that is the reason for what I'm seeing, and I am changing it over the weekend.
There is definitely pressure blowing out of the oil breather line; and above 5000 RPM a trickle of oil develops, which becomes quite a flow at high revs. This is of course not a good thing and I need to sort it out
Has anyone had this sort of thing happen and can offer any advice please?
Thanks
Rich
The dry sum tank breather does go to the breather pot.
The car is a 2003 car. The engine is all new and professionally built and was run in on the dyno.
I'm separating out the crank case breather from the oil can breather today.
The whole dry sump system is brand new.
The only external breathing mod is a Schnitz Racing low profile crank case cover.What do you mean by "checked for stripping" please?
Thanks
Richard
The car is a 2003 car. The engine is all new and professionally built and was run in on the dyno.
I'm separating out the crank case breather from the oil can breather today.
The whole dry sump system is brand new.
The only external breathing mod is a Schnitz Racing low profile crank case cover.What do you mean by "checked for stripping" please?
Thanks
Richard
Gassing Station | Radical | Top of Page | What's New | My Stuff