I went up to Ventura yesterday for the German Auto Fest, which prior to this year was an annual local get together for showing off cars and vendors to hawk their wares to everyone who drinks the Porsche Kool-Aid. This year's show was poorly advertised and very few vendors in attendance, but LN Engineering was there. Since the event was so sparsely attended, I had a chance to talk with the woman at the booth for about 20 minutes without interruption. Here's a summary of the interesting points and my observations of their parts
Her comments, based on my memory of the discussion (caveat - I don't know much about engines or engine technologies, and they are magical contraptions as far as I'm concerned):
There are a lot of plastic parts inside the M96 engines, much more than anyone would expect, and many are potential failure points
It doesn't seem to matter if the cars are driven hard or babied. There's a high correlation between not driving the cars and engine failures. If the cars sit, the engines are much more likely to fail
The stock oil filter elements do a poor job. They sell an adapter that lets you use spin-on oil filters that do are much more effective. She specifically mentioned the Mobil-1 spin on filter as working well (don't remember the other brand)
They have a part to increase the oil capacity of the engine
The quality of cast parts in the engines is pretty poor.Their machined billet replacement parts are significantly stronger than the OEM cast ones they replace.
There are many failure points for the IMS, starting with the bolt on the end. Their replacement IMS has much more bearing surfaces than the OEM part and shouldn't fail. Their IMS bolts are more than twice as strong as the OEM ones
Replacement IMS are available on a replacement basis now
They are working on more replacement parts and tools, and are planning training programs for engine rebuilders
Once an engine disintegrates, it's usually too late to upgrade to their improved parts. Their parts are intended to rebuild functioning engines
Not sure if the bored-out 2.7 to 2.9 engine will pass smog inspections. Not something they have to worry about where they are located.
During their remanufacturing process, the cylinders are bored out and the Nickie liners are put into place. This is the same technology and materials used successfully on air cooled Porsche engines
Even though the stock thermostats are rated to 180°, they have found they run hotter than rated. They sell a lower temperature thermostat option
They have adapters for external oil coolers
Porsche is out of remanufactured 2.5 engines
If you don't like any of these comments, or disagree, don't shoot me, I'm only the messenger. Here are my observations:
They are in the business of selling parts, so no way for me to judge relative quality of oil filter technologies. I didn't correlate against expertise on BITOG
The bolt on the end of the IMS looks really small for something in an engine under a lot of load (or even a little load)
The end of the IMS is a cast component. The surface finish on the casting looks like something you would expect to see in a low quality Chinese knockoff. I don't know if this is what cast engine parts look like, but theirs looked like a piece of art by comparison
Fit and finish of their parts were vastly better than the OEM ones. They can clearly manufacture high quality items (these were display items, so don't know what the production items for sale will look like for sure)
I thought I read somewhere Porsche has more 2.5 available
They were also showing replacement pistons and connecting rods, which also looked very well made. We didn't really talk about them
They had part of a Boxster engine on display, and while it looked nice with their Nickie cylinder liners, I have no idea if it really was a Boxster engine