Putting together a Type IV dry sump system Options

[Flat6forlife]

Hey everyone,

I'm a few weeks away from dropping the drivetrain from my '73 1.7 for a refresh/rebuild. It's an IDF-carbed 2.4L (supposedly, I haven't cracked it open yet) that'll be used mostly for street driving but will see regular autocrosses and occasional track time, hence the dry sump. I've researched for a while and have a decent plan, but I'd love some insight from those who've put them together.

As it stands, the current plan is as follows:
914/6 oil tank with the attached filter
CB or Thorsten Pieper pump (I'd like to retain the OE fan)
Tangerine Racing Oil Cooler and Thermostat setup with the fan
Requisite braided AN lines with appropriate hardware

I see that CSP also makes a pump, but I can't find anyone who has experience with them. The TP pump seems like the best way to go, but the only dry-sumped racer I've seen used the CB to much success. Money isn't an issue for the TP pump; I'll pay for the extra protection and/or simpler installation. The CB needs modification if I've read correctly. Does anyone have a preference?

Also, using the 914/6 tank and its attached filter makes the original filter redundant. Should I run the LN oil filter block-off plate or use a filter relocation adapter to feed an oil cooler (with an inline thermostat) and leave the factory oil cooler in place for two coolers? Maybe double oil filters and the Tangerine oil cooler kit?

I appreciate the insight/assistance! Also, if this has been beaten and covered to death anywhere else, please link it. I'm happy to read and learn that way.

[ChrisFoley]

Here are two different vintages of CB Performance 2 stage pumps I've used in my own race car




The challenge of using this pump is mostly dealing with the engine mount. I use a different mount that works with my horizontal fan setup so its not an issue for me.
Something else that I think is a big deal is that the pump only has dash 8 ports, so I went to some effort to increase the inlet and outlet fitting sizes.
Finally, its said that those pump stages are too small, so I endeavored to remove restrictions at every turn in the system. Mostly that meant no sharp corners and no long runs thru small diameter hoses.
I've had no issues with oil other than valve cover leaks.

At one time I used a two stage pump from Europerf based on the Melling pump but it didn't have an internal crossover.

Someone upthread mentioned the CB pumps needing the shaft shortened to fit. I think that's somewhat camshaft dependent. Some cams have the groove machined shallower than others.