Thread: Another Turbo Build! Questions

Originally Posted by isuzurover

Nice work!

IMHO it is better to convert to the turbo breather system. To do this you need a turbo tappet cover assembly and a blanking plate in place of the side breather.

I just got a piece of allo pipe tigged in the factory rocker cover, then made up a baffle

Hi Rovercare,

My initial intention was to plumb the rocker vent to the compressor inlet ducting. Assuming crank gasses don't increase massively (I only want 100hp) then I would expect it to be fine. Otherwise $40 eBay catch can. Besides, I used mild steel pipe for the inlet ducting, need to keep it rust free some how!

I am always open to suggestions though, that's why I'm here

Cheers, Tristan

Originally Posted by 08Bender

Hey Guys,

Point taken. Can you explain why?

Regards, Tristan

Much simpler plumbing, much less blowby. The isuzu T4BD1T breather setup (i.e. a single breather from the tappet cover) is the same as used by all modern TDs.

POS catch cans are not designed for TDs - which produce much smaller droplets than petrol or NA diesel engines.

I use a Provent - as do others.

Originally Posted by isuzurover

Much simpler plumbing, much less blowby. The isuzu T4BD1T breather setup (i.e. a single breather from the tappet cover) is the same as used by all modern TDs.

POS catch cans are not designed for TDs - which produce much smaller droplets than petrol or NA diesel engines.

I use a Provent - as do others.

Thankyou for the reply, I'll let you know how I go.

Cheers, Tristan

Originally Posted by isuzurover

Much simpler plumbing, much less blowby. The isuzu T4BD1T breather setup (i.e. a single breather from the tappet cover) is the same as used by all modern TDs.

POS catch cans are not designed for TDs - which produce much smaller droplets than petrol or NA diesel engines.

I use a Provent - as do others.

There are a couple of threads on Provent install but none of them seem to show the end product. Do they hold the oil for draining, or where do people drain them to the sump. I was still using the side cover breather but its making a mess so will buy a provent. The breather on the tappet cover does not emit anything so left it there with a little plastic fuel filter stuck in it and cable tied to the inlet manifold so I can see what it does.

At the moment my Provent vents to atmosphere and the drain goes to a sealed container. However that is just because I am using it for research and need to collect oil samples and connect telemetry up to it regularly, etc...

It is best to plumb the drain to the sump (just like your turbo) and the air outlet to the intake.

Originally Posted by isuzurover

At the moment my Provent vents to atmosphere and the drain goes to a sealed container. However that is just because I am using it for research and need to collect oil samples and connect telemetry up to it regularly, etc...

It is best to plumb the drain to the sump (just like your turbo) and the air outlet to the intake.

Isuzurover,

Tell me about your research and "telemetry", sound like you have remote sensors connected to your Provent?

Cheers, Tristan

Oh, Also, why is the Provent a better product than a POS catch can? (there are a lot of catch can varieties on the market)

And, you'll be pleased to hear that I popped a extra hole in my oil filter spacer (bypass housing) today. Just incase the N/A crank vent system fails, I'll have a spare drain to sump port for the separator drain.

Originally Posted by 08Bender

Isuzurover,

Tell me about your research and "telemetry", sound like you have remote sensors connected to your Provent?

Cheers, Tristan

Oh, Also, why is the Provent a better product than a POS catch can? (there are a lot of catch can varieties on the market)

And, you'll be pleased to hear that I popped a extra hole in my oil filter spacer (bypass housing) today. Just incase the N/A crank vent system fails, I'll have a spare drain to sump port for the separator drain.

Hi Tristan,

I have a research project with MANN+HUMMEL (MANN Filter) to optimise the performance of their crankcase filter systems (e.g. Provent). It has been lots of work over >4 years, so a bit too much to explain here, however if you search I have posted some results.

As for the catch cans, it would take a few pages and lots of maths to explain properly. In stort, you would need a catch can the size of your entire engine bay to work as well as a mediocre filter.