Cummins 4BT & Diesel Conversions Forums banner
1 - 1 of 1 Posts

· Registered
696 Posts
3.9 400bhp

Hi, I have posted Q's on a 6BT site and was warned off a copper HG as it needs constant retorquing. I understand that a marine HG +20 thou with studs would probably be good for 50+ psi, I also asked about twins but no real knowledge came back apart from bottom turbo should be roughly twice the cfm of the top turbo so I was thinking HX30 top with HX40 bottom and as the HX40 flows about 2/3 of a HT3B it is probably in the right ballpark.

1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.