0-60 Times

Yeah he honestly sounds stupid

 

You went from a 3.00" to a 2.85' I'm assuming.....I'm sure you gained more air induction, and turned the screws faster, which should mean an increase in HP....if not you may have an underlying issue.....Torspd..you're up..!

 

Helped a friend with his s/c. After install of the new unit, it wasn't acting, or performing like it was making any boost. Told him to cap the vacuum hose which goes to the bypass valve. Voila. Instant boost. It was quite rewarding hearing the excitement in his voice. The bypass valve was staying open. Needed a new one.

For testing sake, you could try the same. Yours might possibly be partially stuck open perhaps? I know that we had discussed other possibilities, such as elevation.

 

Lucario Runner makes ~250ish whp and ~300ish wtq with N/A bolt-ons. Has the same 3.73 gears. Races autocross and on two different road courses, in his 4Runner w/4.0L. And can still get 24 mpg. I have other friends whom have done similar mods but with the 6 spd manual Tacoma, and can get similar mpg.

 

I assume you mean to cap the bypass valve itself and not the vacuum line, right? Pretty sure that's what you meant but the way it's worded sounds like you're suggesting leaving the valve itself open to the atmosphere and then cap the vacuum line that was connected to it?

 

Correct. Primarily the vacuum source.

 

Wait, which part was correct? lol

1. Just leave the valve uncapped and cap the vaccum line so there are no vacuum leaks in the system?

2. Cap the valve & leave the vacuum line uncapped.

 

Just cap both for testing.

 

I'll try it out.

 

Any difference, or no?

 

I haven't even had a chance to test it yet to be honest. The truck has sat in the garage and I've just been driving my other cars until I get more time to tinker. In somewhat related news I do have a Check Engine light that flashes a few more times after start up than it used to. I recently had to replace my battery and it started shortly after that so I just chalked it up to sensors being reset and needing to re-adjust parameters but now I'm wondering if it's not throwing a code for that bypass valve maybe. I'll need to pull a code to see what sensor is throwing it. The acceleration remained unchanged as compared to when I replaced the pulley with the smaller one.

 

I don't think anyone has ever done a 0-60 run with a little 2.7 before, so I did one.

https://www.youtube.com/watch?v=cHlV9FSipzM

I just did a regular full throttle start without popping the clutch or speed shifting. Second gear gets it past 60 so it's just one shift.

Elapsed time: 10.0 seconds.


Greg

Edit: Correction, Gelo also did a 2.7 run.

 

https://www.youtube.com/watch?feature=player_embedded&v=BRNYJk4rEUE

with an extra passenger, 3" lift, 285/70/17 Toyo's... aaaaand IPT valve body upgrade

 

They technically have done this, BUT they have just, quite stubbornly kept the Duel vvti variant of the 1gr-fe found in later model Fj cruisers and 4runners out of the tacoma for no good reason. Duel vvti Added another 20hp/20ft/lb of torque, improved mpg, and eliminated the need for a secondary air injection system since the exhaust cam vvti coupled with the intake vvti drastically improves the burning of the fuel. Toyota really missed the boat on that opportunity because I for one think it was the smarter, better thing to do to add to the facelifed 2012+ tacos instead of the stupid and irritating secondary air system

 

Good heads, mated to a terribly executed bottom end. The dual VVT-I engine. Shouldn't even be called the 1GR.

Moving Moose!

 

If it ain't broke...

The problem is there is NO competition in the segment. They can't make Tacomas fast enough to meet demand so no need adding anything new if they don't need to. If/when someone else makes something to actually compete they've got plenty of aces up their sleeve to bring customers back over to their side before the competition can take any market share. I'd love lots of upgrades but that also can come with a sacrifice in reliability overall and/or a price hike. As much as I would like all sorts of features and options in my Tacoma I'm quite happy with it over other vehicles I've owned that have had more wizz-bang options.

 

[QE=Ostrichsak;9015037]If it ain't broke...

The problem is there is NO competition in the segment. They can't make Tacomas fast enough to meet demand so no need adding anythinsen

PHP:

hey don't need to. If/when someone else makes something to actually compete they've got plenty of aces up their sleeve to bring customers back over to their side before the competition can take any market share. I'd love lots of upgrades but that also can come with a sacrifice in reliability overall and/or a price hike. As much as I would like all sorts of features and options in my Tacoma I'm quite happy with it over other vehicles I've owned that have had more wizz-bang options.[/QUOTE]

Adding a the duel vvti variant would never sacrifice reliability when that engine has been proven already in the fj cruiser and 4runner, toyota already did this in the fj cruiser because the cruiser had the single vvti variant, our exact 4.0s for the first two years of fj production, then toyota realized they messed up because the engine didnt make enough power since the fj is heavier than the tacoma, sooo they put a duel vvti variant in there up until now that the fj is going out of production, it could easily be done because its been done before, wouldn't be difficult for them, definitely would never sacrifice reliability, it could actually only better it, and no crap emissions pump And it would have kept more room in the engine bay as well as kept other components the same such as brake and A/C lines as well as the ABS pump position, also, price really wouldn't be affected that much because all that changed is an existing engine, and an ECU which is also already existing... and lastly, as far as competition goes, toyota should have bumped the power up years ago because the frontier is still beating the tacoma on the power front, even if tacoma sales are better, duel vvti would have been the simpler, cleaner way to make the 4.0 emissions compliment in 2012 + tacomas. it literally just makes sense

 

My point about reliability was more of a generalization when you have a proven object. Any time you make changes you introduce unknowns and there's no saying that more power won't decrease the life of the drive line or some other component. The primary point is if you can't build enough of the object to meet demand why would you do anything other than try to meet demand?

 

Its really not going to affect anything... that duel vvti varient has been used for years in the 5th gen 4runner and fj cruiser with no troubles, toyota already swapped a single for a duel with the fj cruiser in mid production with no trouble at all, I really dont see your point here.

 

You're speaking in specifics. I'm speaking in generalities so that's probably why you fail to see my point. I'm also talking about a corporation who's sole purpose for existence is to make profit. If you can't understand the simple idea of supply v demand and how it affects corporate decisions then I'm not sure how to help you here. I know you think Toyota hates us and that's the only reason but there are far bigger reasons than you can comprehend at play here.