Camaro LT5

[steve da wrench]

I did not see anywhere where you state what the part # is for the a Mann and Hummel Air oil separator. I looked on their website but did not find that particular one.

Also, who made all of the mods to the Peterson oil tank? Is this something we can purchase with all of the mods done to it, or was your own custom design & made thing?

Thanks for all of the great info. Saves the rest of us a ton of effort and wasted time and parts!

[srode1]

Originally Posted by steve da wrench

I did not see anywhere where you state what the part # is for the a Mann and Hummel Air oil separator. I looked on their website but did not find that particular one.

Looks like a ProVent 100. The 200 may have been a bit large for the location, it's pretty big. I am curious how the smaller one is working out.

[Stielow]

Originally Posted by srode1

Looks like a ProVent 100. The 200 may have been a bit large for the location, it's pretty big. I am curious how the smaller one is working out.

I have used it on 3 builds now and it works great. Be aware there are two part numbers on how they vent. Make sure you get the correct one. I would need to do some digging to find the correct part number. The last one I purchased was a Mann ProVent 100 SKU 3931070793 Jan 2019. I think that was the correct one.

Don't blame me if that is the wrong one.

Good luck

Mark

[srode1]

Thanks, I was trying to figure out how to fit a 200 in mine and it's a challenge, the 100 is a much easier fit. If you find anything in your 'spare' time on the difference between the two provent 100 options I'd be very interested will use the part number you listed otherwise.

On edit - after some quick research - the differences are one version has a bypass which is the part number ending in 3. The part number ending in 2 has a pressure relief valve. Based on the naming I would guess the bypass routes excess through the outlet which most would route to the air intake tube, and the pressure relief valve vents excess externally. The version version ending in 2 is called 'off road' probably due to the routing of the relief valve gasses.

[srode1]

So the ProVent 100 takes care of the oil tank vapors - how do/did you manage the valve cover outlets for vapors?

[Stielow]

Originally Posted by srode1

So the ProVent 100 takes care of the oil tank vapors - how do/did you manage the valve cover outlets for vapors?

On LS engines the stock LS9 style valve covers have baffles and I think the LTs do also. We drill out the old 3/8 inch vent nipples and add a -8 AN nipple. This 900 - 1000 HP engine need a way to breath. If you don't get the vent large enough we have blow out rear main seals (Not good)(Big Fire). Also don't delete the factory PVC vent system. Air needs to move through the engine to get moister out.

A lot of air oil separators need to be drain manually, I don't like that. I like the Mann and Hummel's or similar that have previsions to drain back to he oil tank or pan. You don't need to remember to drain them.

Oil and or a lot of oil vapors that get into your intake will lead to preignition issue if it gets out of control. It is best to keep it under control.

Mark