When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I read somewhere that the 4.0 in the GT3 has redesigned heads with new oiling system. I guess thats what going in the 991.2 GT3 which hopefully is a permanent fix for the engine issues that plauged the 991.1 GT3.
Actually the 2016 .1 GT3 already has a new designed oil system.
Yes, that's the main difference between the Gen 1 GT3, Gen 1.5 GT3RS/911R vs the Gen 2 GT3R engine. Porsche beefed up the oiling capacity to the heads in Gen 2 engines.
So this confirms all with 991.1GT3, 991 GT3RS and 911R have engines with insufficient oiling capacity for long term longevity?
It doesn't make sense. Porsche took 3 years to work that out? They increased oil pressure, replaced pumps, redesigned filters and added oil lines to The above cars during 3 years production but then moved on to DLC coatings so the oiling can't be the only changes on these engines.
So this confirms all with 991.1GT3, 991 GT3RS and 911R have engines with insufficient oiling capacity for long term longevity?
It doesn't make sense. Porsche took 3 years to work that out? They increased oil pressure, replaced pumps, redesigned filters and added oil lines to The above cars during 3 years production but then moved on to DLC coatings so the oiling can't be the only changes on these engines.
I'm betting valve train gear re design?
It makes complete sense. They didn't subject it to motorsport. Unfortunate it took three years but at least they're on the program now.
It makes complete sense. They didn't subject it to motorsport. Unfortunate it took three years but at least they're on the program now.
Agreed, but they have had the DFI running reliably in Motorsport now for 9 months with the bulk of development on that engine completed in November 2015 from sources in the Motorsports Team. It seems errant of them to then design a DLC cam for the July onward production 911.1 GT3RS and new 911R engine if oiling was truly the outstanding issue. They had plenty of time to a address oiling in MA175/6 engines from November 2015.
I dont think the full story is available to us yet.