anthonym Posted August 9, 2022 Share Posted August 9, 2022 Sounds like the weight difference is not much.Why does it seem like the Alloy versions are desired?Anthony Link to comment Share on other sites More sharing options...
ScottR400D Posted August 9, 2022 Share Posted August 9, 2022 At a guess I'd say aluminium has advantages in weight, stiffness for a given weight, vibration damping, thermal conductivity, corrosion resistance, expansion characteristics on an alloy block?Good question though. Link to comment Share on other sites More sharing options...
anthonym Posted August 9, 2022 Author Share Posted August 9, 2022 If I do it I will be adding a sacrificial bit of ally to the front of the trough. Link to comment Share on other sites More sharing options...
Area Representative Golf Juliet Tango Posted August 10, 2022 Area Representative Share Posted August 10, 2022 Given the choice Anthony, I would chose a material which matches the block. i.e. if an iron block choose sterl, if aluminium block then aluminium. So is this for the BDR or K series? Link to comment Share on other sites More sharing options...
Area Representative Golf Juliet Tango Posted August 10, 2022 Area Representative Share Posted August 10, 2022 Given the choice Anthony, I would chose a material which matches the block. i.e. if an iron block choose steel, if aluminium block then aluminium. So is this for the BDR or K series? Link to comment Share on other sites More sharing options...
anthonym Posted August 10, 2022 Author Share Posted August 10, 2022 dup Link to comment Share on other sites More sharing options...
anthonym Posted August 10, 2022 Author Share Posted August 10, 2022 BDR not sure what the block is; never thought of it as ally Link to comment Share on other sites More sharing options...
Area Representative Golf Juliet Tango Posted August 10, 2022 Area Representative Share Posted August 10, 2022 Steel. Link to comment Share on other sites More sharing options...
Roger King Posted August 10, 2022 Share Posted August 10, 2022 If it's a real BDR then the block is iron. There's very little to be gained in stiffness with a cast sump on these, but a lot to lose in terms of vulnerability.Go steel. Link to comment Share on other sites More sharing options...
anthonym Posted August 11, 2022 Author Share Posted August 11, 2022 thanks, the block is a 711M if that is useful Link to comment Share on other sites More sharing options...
Roger King Posted August 11, 2022 Share Posted August 11, 2022 It's cast iron. Link to comment Share on other sites More sharing options...
anthonym Posted August 13, 2022 Author Share Posted August 13, 2022 Rita says no longer available. So depending what I Find on removal we will see - having released both sides not sure why it is still solidly fixed Link to comment Share on other sites More sharing options...
SM25T Posted August 13, 2022 Share Posted August 13, 2022 Who is Rita ? A lovely meter maid ? Link to comment Share on other sites More sharing options...
anthonym Posted August 13, 2022 Author Share Posted August 13, 2022 Rita Wilcox Wilcox engines Link to comment Share on other sites More sharing options...
anthonym Posted August 14, 2022 Author Share Posted August 14, 2022 now it's off.. the contact edges are hammered all round, very uneven (squished by the bolts) and inside makes me uneasy. So a new one and I'll add a sumpguard, probably a sacrificial bit of ally. Link to comment Share on other sites More sharing options...
andy couchman Posted August 15, 2022 Share Posted August 15, 2022 I have a steel Burton's dry sump on my crossflow (same block as the BD?). It has a right angle front on the bottom of the pan, so we welded a steel 'ramp' to the chassis crossmember immediately in front of it. Been on there 20 years now and (touch wood) still OK. Link to comment Share on other sites More sharing options...
anthonym Posted August 15, 2022 Author Share Posted August 15, 2022 Like a sump guard? So the car can ski. Nice. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now