Looks like it's not a 7GR, EPC partially updated: 2GR-FKS

They must be related

 

I notice that in ^ and ^^, the subjects are wearing blue. Coincidence?

 

My what ?

Dear gincoma
I am ecstatic, that through your hard work, and dedication of your special education teachers, you learned how to use digital devices. It is not everyday, that a person with such small mental capacity, can achieve so much.
The World is proud of you. You are giver of hope to every inbred out there.

Sincerely
BlueT


P.S. I always wanted to write this to somebody.

 

Disregard everything else and just re-read your statement again

Octane rating does not mean fuel has more or less energy content, also vehicles dont have octane testers in them. The only time they know you are using crappy fuel (low octane in high octane engine) is when engine knocks/pings and sensor detects that, than adjusts timings to minimize.
So...
If engine was made to run 87, engine would not have knock, and sensor would not tell system to adjust, and power would have stayed the same and MPG would be the same.
Since neither power is the same or anything else, its easy to figured out that engine must be knocking for sensor to adjust. Do you follow me?
And
any knock in engine = slow death...
Yes there are mappings to minimize that, yes engines can co-op with it for some time, but still it leaves the mark.
The higher performance engine the more you do damage.

 

Octane detectors? At least google the topic.

Engine ECU's can dynamically remap timing to adjust for between different octane fuel. The Lexus is not "designed" to run off of 91 octane, its marketed to run of 91. Most, if not all, engines will have a 91, or "high" octane map to take advantage of 91/93 octane gas. The 1GR uses a 10:1 ratio, it will take advantage of 91 octane gas.

The ECU is able to detect the timing of the detonation from the knock sensor and will be able to detect if the timing of detonation is advancing. If it detects this it will shift to a low octane tune and retard timing to prohibit knocking before it happens.

 

270HP... https://www.tacomaworld.com/out/?ur...-sneak-peak-at-the-all-new-2016-toyota-tacoma

 

No way

 

I think this new speculative information is cause for a new thread for more bitching

 

This is what you got fro my post
My point was there is no other way for engine to detect its running 87 except by detecting knock.
So if its detecting knock than you running wrong fuel. Period.

I suggest you are the one that uses Google. There is no advantage in 91 as far as energy level. Octane rating has nothing to do with energy content.
the only difference is that auto-ignites at higher point.
Nothing more nothing less.

 

That's not how an engine knock sensor works.

 

Yes, it is interesting that the earlier accessory document called it a 7GR. In fact, I was actually the person to originally add that information to Wikipedia when it was first released, before it got posted anywhere else. Still, if the actual parts catalog for the truck calls it a 2GR-FKS, that is much more solid than an old tentative document listed on a dealer accessory website. What I posted here in this thread wasn't really speculative anymore, it was supposed to be confirmation on what the engine would actually be, now that the parts catalogs are being released.

Jeff

 

Typically, using higher octane than what is recommended does not net more power. Generally the tune is done for a specific knock index and if the knock sensor detects any knock, it will retard the ignition timing to reduce the chance of damage to the engine. If the engine is tuned for 87, and doesn't pre-ignite with 87 the knock sensor will not be reducing engine output. Putting in 91 will not increase output, nor will the ECU switch to a higher octane map. It starts at the highest octane map (whatever it was tuned for, typically/almost always what the manufacturer rates it for), and will only go down from there as it detects knock.

If the engine was tuned for 87 and it doesn't knock with 87, putting in 91 will also not knock. The ECU will not know the difference between 87 and 91 if neither of them are knocking and will run the engine with identical tuning. If an engine is tuned for 87 and knocks on 87, that's odd, but possible depending on heat and so on, but if that's the case, running 91 could give you more power since it would be back to running on it's primary ignition map. Most tunes will have a temperature compensation map that will reduce ignition timing as temperature increases beyond normal as well though, so in a case like that, even running higher octane still won't give you increased performance either.

Jeff

 

Wrong. The ECU can detect when the timing of combustion changes due to lower Octane. It can adjust before knocking occurs. Never said there was "energy level" advantages. But when the ECU detects retardation of combustion, it will swap to a higher level octane map and advance the timing for better combustion efficiency which nets more power.

At one point this was true as the ECU was only loaded with a single octane map. Now car manufacturers are making multiple octane maps to take advantage of higher octane as able. An engine with a 10:1 compression ratio historically would have been a higher octane engine (10:1 is pretty high).

If I can barrow BlueT's lingo, I would say the 1GR was DESIGNED to use 91/93 octane and is detuned to run 87. Its still has a map to take advantage of 91 octane though.

 

You know what they say about arguing with a child........ once you start you have already lost. I applaud your efforts, I really do, but this debate is futile.

I traded in my 2000 taco for an 05 in 2005. You should have seen the derp that was avaliable on line about how the V8 Dakota & Nissan Frontier had more HP. Everything I read said "WTF Toyota" ect. It's quite funny that now my truck is 10 years old and I am starting to consider a new rig and what do I see on the Internet when I try to look into the new Taco? These same idiot's with new usernames it seems.

Ive been around TW long enough to know what's up but really feel sorry for the guest who are viewing these 3rd Gen threads. All the haters really do just need to shut the fuck up and wait until we can compare these new Tacoma to the twins heads up.

I'm done. Flame on DB's

 

It goes back a very long time. I was around forums pre-Tacoma & I can tell you the masses were out with their pitchforks when the Tacoma was introduced. How dare they get rid of the 22RE, how dare they put a big crease down the side of the front fenders, how dare they etc etc etc. The sad part is we as a people haven't evolved at all in this regard over the last 20 years. The derp continues......

 

Should have kept the first gen FGDCFTMFW!

Still think they should have kept the 22RE. All these horsepower complaining pussies don't understand.