paraordnance
New member
I'm happy because I cruise around town below 3000 rpm and still be one of the first off the line
Torque Curve b/w V6 vs. V8
- Thread starter Thai
- Start date
I'm happy because I cruise around town below 3000 rpm and still be one of the first off the line
Scoobs
Member
And it's so smoooooooooooooooooth getting there.
Thai
Elite Member
It is all about atmosphere. When i had my M3, i went fast...and paid for it via speeding tickets!
When i am in my G, i just don't feel like going fast. Merging does not require me to have a lead foot...with the V8, i accelerate quick enough with just light pressure on the gas pedal. 
To do the same in my Sienna minivan, i have to use more of the powerband to get up to speed due to its smaller higher-revving engine.
Thai
Elite Member
That is because your V6 4runner has BFG M/T while Josh's V8 4runner has the highway Nitto TG!
(Sorry Josh, i just have to get you one more time....)
T
ToyTech99
Guest
The OEM plugs on the V6 are supposed to be changed at 30,000 miles. Of course they can be replaced with long-life plugs like the ones that come with the V8, so it's really a non-issue. Besides, I wouldn't leave the same plugs in my engine for 100,000 miles, much less 120,000 miles no matter what kind of plugs they are. No way I'd ever do that.
Oops... Guess it's time to change the plugs then. I tried to have it done and the tech told me to just wait until 120k, it wasn't worth it to do them at 90k.
eskimochaos
Banned
The V8 is a BETTER engine. Not only because it is more powerful, it was designed with a more difficult life cycle in mind. Everything on it is built to last. Cast iron block, forged iron internal components and the Denso 32bit ignition system which attributes to its smoothness. The V6 has a generic toyota system. Not only is the V8 "physically" better and more stout but the electronics that surround it are better as well - case in point the spark plugs.
Thai
Elite Member
Weren't there stories of cracked iron block on the V8?? Or how about cracked exhaust manifolds?? Timing belt? Built to last? Yeah possibly, but i am not sure that it is any better than the V6. I have not heard much reliability/durability issues with the V6...i probably hear more about the V8!
More powerful? I don't know...the V6 has more torque output per liter.
And lets be honest...the only reason the 4.7L V8 had an iron engine block was because it is old technology from an old engine dating back to the early 1990's!! The engine dates back to the Lexus LS400 engine. Back then, not many engines use aluminum block because it was too expensive. In other words, Toyota did NOT use the iron block in the 4.7L V8 because it was a stronger/better material, but because there was no other choice! As you notice, all the new Toyota and Lexus engines use ALUMINUM, including the mightly 5.7L V8 on Toyota/Lexus big boys and the upcoming 4.6L V8 in the GX460. So, there is nothing wrong with aluminum as an engine block. In fact, aluminum is a far better material for the engine block than iron because it is lighter, gets rid of heat much better, and can be made as strong as iron with liners (often, iron liners).
I much rather have the timing chain over the long-lasting sparks because i can always replace the OEM sparks with an aftermarket long lasting unit...the same cannot be said about the timing belt. Yeah, i would NOT use the sparks as your argument about the V8 being longer lasting!
As for electronics...i don't know...the V6 has VVTi before the V8...and now, the updated V6 (on 2010 4runners) have dual VVTi. You would imagine that the VVTi technology would require sophisticated brain power.
Not on either camp in this argument, but just wanted to point out some viewpoints.:hatsoff:
eskimochaos
Banned
there is an article dictating that the engineers wanted to use iron because of it's durability and robustness. Furthermore, more output pet liter means jack shit. The v8 is faster has more torque and sounds better. The fact that the v8 uses a belt for for quieter operation and the fact that it has 90k service intervals should hardly take away from the designed life of the engine.
It was cracked manifolds which really isn't a big of deal never cracke blocks.
You have said nothing that makes the v6 better. On paper the v8 is better, it's a very proven platform and bulletproof. It uses no oil and requires only oil changes until 90k.
The fact that it does have a better ignition system means a lot and as I said the simple fact that they didn't put the iridium plugs in v6 speaks worlds of differences.
It was cracked manifolds which really isn't a big of deal never cracke blocks.
You have said nothing that makes the v6 better. On paper the v8 is better, it's a very proven platform and bulletproof. It uses no oil and requires only oil changes until 90k.
The fact that it does have a better ignition system means a lot and as I said the simple fact that they didn't put the iridium plugs in v6 speaks worlds of differences.
Weren't there stories of cracked iron block on the V8?? Or how about cracked exhaust manifolds?? Timing belt? Built to last? Yeah possibly, but i am not sure that it is any better than the V6. I have not heard much reliability/durability issues with the V6...i probably hear more about the V8!
More powerful? I don't know...the V6 has more torque output per liter.
And lets be honest...the only reason the 4.7L V8 had an iron engine block was because it is old technology from an old engine dating back to the early 1990's!! The engine dates back to the Lexus LS400 engine. Back then, not many engines use aluminum block because it was too expensive. In other words, Toyota did NOT use the iron block in the 4.7L V8 because it was a stronger/better material, but because there was no other choice! As you notice, all the new Toyota and Lexus engines use ALUMINUM, including the mightly 5.7L V8 on Toyota/Lexus big boys and the upcoming 4.6L V8 in the GX460. So, there is nothing wrong with aluminum as an engine block. In fact, aluminum is a far better material for the engine block than iron because it is lighter, gets rid of heat much better, and can be made as strong as iron with liners (often, iron liners).
I much rather have the timing chain over the long-lasting sparks because i can always replace the OEM sparks with an aftermarket long lasting unit...the same cannot be said about the timing belt. Yeah, i would NOT use the sparks as your argument about the V8 being longer lasting!
As for electronics...i don't know...the V6 has VVTi before the V8...and now, the updated V6 (on 2010 4runners) have dual VVTi. You would imagine that the VVTi technology would require sophisticated brain power.
Not on either camp in this argument, but just wanted to point out some viewpoints.:hatsoff:
Thai
Elite Member
If Toyota wanted durability, then a timing chain is the way to go. You could argue that Toyota went cheap with the timing belt in the V8. What does the new 5.7L V8 engine on the Lexus LX570 use? Timing chain i believe.
Cracked exhaust manifolds no big deal??!! My brother had to spend over $2000 to fix BOTH sides on his LX470...and he has about 65k miles ONLY! No big deal???? Who are you trying to kid?
Torque per liter is a good indication of how good an engine is engineered. It is equally as important as anything that you have pointed out in your argument about the V8 being better. What does "sound" have to do with anything??!!
That is pretty ridiculous to say!! :redbrick: And you care more about "sound" than specific output of an engine?! 
Has the V6 been unreliable since 2003?? No. And it is used widely among the 4runners and Tacomas. Not sure about overseas, but I would bet that there are more V6s on the road today than the V8 because 4runners and Tacomas sell at higher volume. Therefore, the V6 has proven itself many times over...so, i don't think that you can call the V6 out on its reliability/durability.
Thai
Elite Member
Think of it another way...in 2010, which engine continues on and which engine goes into the trash can?? The 4.0L V6 gets dual VVTi. The 4.7L V8 iron blocked is trashed in favor of a new 4.6L V8. If the 4.7L V8 is so good, then why is Lexus/Toyota getting rid of it in favor a NEW V8 for the GX460?
My conclusion: At the RPMs typically used when driving, the 4.7 V8 has 25 - 50 ft-lbs more torque than the V6. 5000 RPM? I don't think I've ever had my V8 4Runner wound up that high.
Is the V6 a bad engine? No. But the 4.7 has noticeably more torque, and the difference would be even greater between the V6 and the 4.6 (which is a far newer engine than the now long-in-tooth 4.7).
That's a strawman argument. I've never said the old 4.7 is better than the much newer 4.6. What I've said is that I prefer the 4.7 to the 4.0. And I also prefer the 4.6 to the 4.7.
The great thing about the V8's low end torque is that it accelerates so effortlessly, at low rpm, right off the line, with no need for high rpms. No muss, no fuss, you just scoot.
I've done it, I got a whopping 1mpg increase... Performance doesn't feel any different. This was on the highway, not around town.
Thai
Elite Member
Did you post in the wrong thread? I was not addressing you. :nono:
offshorebear
New member
One thing that attracted me to the V8 4Runner was the iron block. I've had a few aluminum engines and I just don't like them. I don't think you can consistently get 200k+ miles from aluminum. They are noisier and you have to be really careful about overheating. Probably not an issue for most but I like the iron.
I just love the low end power. It's good for the soul!
I just love the low end power. It's good for the soul!
eskimochaos
Banned
Its actually amazing that it can get to about 50mph VERY easily while still keeping the revs around 1700.
Offshorebear, how do you like the KO's after the month or so you've had them? Any power loss - as that is my main concern.
