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Is it seeing 9000 rpm often? Is there any correlation with high rpm usage and oil consumption? Does it still use oil if engine RPMs are kept below 3000 rpm for instance? Depending on whether the oil is getting past the rings or the valve stems a thicker oil could actually increase oil...

That really depends on ring material and final cylinder hone finish. With a harder ring material and smoother cylinder wall initial break-in will be more critical and you’ll need to apply cylinder pressure before the surface glazes. Most really hard rings will get some sort of PVD face...

We already know, PWTA has been in production in the GT500 since 2011 and in the GTR somewhere around the same time. It performs well up until a point — about 1000 rwhp in the GT500s case give a take couple hundred HP for other variables — at which point the bore begins to distort over time and...

The ‘21 5.0 isn’t running the regular Modular/Coyote crank driven oil pump any longer. The ‘21 5.0 has a belt-driven oil pump that is similar to the 7.3 Godzilla oil pump. I don’t know enough about it’s real world performance to speculate on Ford’s change in recommended viscosity. The...

There actually is benefit, as the 12:0:1 Gen 3 5.0 relies on knock sensors to continue to advance timing until knock is detected. The Gen 3 5.0s do make more than their rated power on 93 octane.

A .080”-.150” thick wall cast iron liner provides much better durability in an aluminum block than a .002-.003” spray-on iron coating as the thick wall liner makes for a much more stable/robust cylinder wall and head gasket sealing area. PWTA liners do likely have superior heat transfer...

Nissan licensed that PWTA liner tech used in the GTR from Ford. Interestingly enough, Ford doesn’t call for Mobil 1 0W-40 in any of their PWTA applications.

Yes to both

I believe the article must be referring to thicker oil increasing timing chain tensioner tension thus increasing wear rates on the nylon timing chain guide wear strips. No way is oil thickness having any appreciable impact on actual chain stretch. There may be some truth the wear strip service...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by OVERKILL</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by Ben99GT</div><div class="ubbcode-body"> I don't see a debunking. Was the other guy clueless to the...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by Mikes2nd</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by Ben99GT</div><div class="ubbcode-body"> Interesting video regarding Gen III Hemi camshaft/lifter issues...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by Mikes2nd</div><div class="ubbcode-body">Okay in 2003-2008 the Hemi 5.7L was award winning for pretty much all those years... Its THE exact same design... what changed? The bankruptcy happened in 2009... The hemi...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by UncleDave</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by AZjeff</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by UncleDave</div><div class="ubbcode-body">Neither did my Ridgeline, or Rx400H. My Honda and Lexus Toyota 6's are smoother than my Nissan V6 products. Better from an NVH standpoint, worse from a maintenance standpoint...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by depo26</div><div class="ubbcode-body">I changed the oil over the weekend to PP 10w-30. First, impression, the car started easier and quieted down somewhat. Redline is definitely a lot thicker than the same weight PP. I...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by UncleDave</div><div class="ubbcode-body">On nylon slippers They aren so smooth they dont wear out. There is contact being made. A steel chain against a (or multiple) nylon block is not quieter than a rubber belt on a...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by UncleDave</div><div class="ubbcode-body">There are several types of gear drives, straight and helical cut (helical cut being the "quiet" one I mentioned above) A SBC with its short timing chain and path is the quietest...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by UncleDave</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by Ben99GT</div><div class="ubbcode-body"><div class="ubbcode-block"><div...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by tbm5690</div><div class="ubbcode-body">I have both, and both are reliable. The VQ is legendary, but they are known for being noisy...chain is a big part of that.</div></div> VQ valve-train noise has more to do with the...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted by JustN89</div><div class="ubbcode-body">Honda V6s are smooth, as eluded to previously, largely thanks to having a timing belt.</div></div> There is no way you can detect an NVH difference between a timing belt and a...