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Yeah, no racecars are lowered...

My point is Toyotas last a long time whether you treat them nicely or not, and there is no objective evidence in his "story".

"Look at me, I had a Toyota that lasted a long time, take my anecdotal evidence as gospel" No thanks mate.

Thanks for the suggestions guys! I'll definitely be keeping an eye on things with whatever oil is in the car, I'm very particular about my cars haha. Hopefully the breather setup I'll be installing will help with some of the stress on the oil, I know alcohol will leech zddp out of the oil. I...

You guys remember when the Chevy Cobalt team won the Super Street Time Attack event in 2006? Those cars have arguably one of the worst rear suspension designs... You can make anything handle and ride well, it just takes some work. I agree Tein is probably not the best valving, which makes the...

While the Tein's might be underdamped, if the goal is to add roll couple/stiffness, a sway bar will help. The car does have springs in the rear, the torsion beam isn't the only thing resisting body roll/suspension motion.

Another vote for larger sway bars. Going up 1K in spring rate will help a little, but if you're looking to control body motion with spring rate, that's not going to do it. Sway bars will help much more, and keep the ride comfort basically the same. Do not put poly bushings in your control...

It is indeed! The radiator fan sits very close to the harmonic balancer. Here it is in the old chassis (as I bought the car, not my work haha), it's currently on the stand getting some new gaskets and a makeover before it goes in the other car. Going into here:

I mean, that was kind of my plan. Run a few oils, do some UOAs, cut filters open, etc. I'm definitely not concerned with finding/having a high quality oil in my cars, I'm mostly concerned with which is going to provide me with the best results. If I have to establish it with testing, that's...

I am aware of the specifics of racing oil vs street oil. Unfortunately my vehicles are hybrids in the sense that they do both. I would like an oil that does as well. I know there are plenty of oils out there that will, I'm just curious about the new way to do it vs the old and if there is...

If you check my spreadsheet there, I have most of the "high-performance" 5w40 and 5w50 oils listed out there. I am my engine builder :P. The shops I've worked at have always used Redline, Motul, or Schaeffer's.

There's a lot of discussion on this forum of specs and qualifications for specific applications, but I have a more general question. Are newer oil formulations and their additive packages actually better at protecting an engine from wear, or are they mainly driven by manufacturer requirements...

These are springs that progressively open depending on their rate. That valve is shut at idle and probably halfway through the rev range. I agree chasing pressure for pressure's sake is a little silly.

Are you saying a tired oil pump (aka one with more internal clearance from wear) Is not going to be better protected by a higher HTHS oil? I was under the impression that higher HTHS correlated to the oil being able to maintain a physically thicker oil film. I'll admit that I've never done any...

I mean more load on the turbochargers internals. Running more boost puts more speed and thrust load into the shaft.

Wow, I mean HTHS in both posts. 🤦

Modern turbos are much better than old ones when it comes to construction. That being said, pushing a turbo to high boost will put more load on everything and it could cause wear depending on what kind of thrust and bearing system is used. An engine oil with high anti-wear additive amounts, HTST...

I think I get what you're asking, and it definitely has a lot of factors. For instance if the car was driven by someone with a light foot and was an automatic, I would say an oil that was thin enough to provide good gas mileage while strong enough to prevent wear. In such an application, it...