BlackCat914
New member
Lol!
Ebay 5vz-fe Turbo
- Thread starter Singtoe
- Start date
Lol!
Robb235
Senior Member
I'm thinking I'm just going to buy the turbo manifold and downpipe. I've already got a T3/T4 sitting in my basement that I was going to use on a rear mount setup (copy cat of Clownmeat's). But I like the front mount setup better (no oil return pump needed, front mount can just gravity drain back to the pan). I think I'll just buy the manifold and downpipe, and ditch everything else. I'll use meth injection instead of an intercooler.
Since this turbo kit was designed with Tacos in mind and not 4Runners, will the downpipe conflict with anything? Or do Tacos and 4Runners have the same under-hood configuration and spacing?
Since this turbo kit was designed with Tacos in mind and not 4Runners, will the downpipe conflict with anything? Or do Tacos and 4Runners have the same under-hood configuration and spacing?
You missed my point. I am not I saying this kit will be more reliable. I agree that most likely the toyota supercharger would be more reliable. All I was saying is that turbo's can be very reliable when done correctly. You were mentioning boost leaks and melting wires, these problems don't happen when things are done correctly.
paddlenbike
Member
To anyone buying this kit, the first thing you will need to do is fab a bracket to take the weight and inertia of the turbo off the manifold. The way it is shown in the pictures, it is only a matter of time before the studs starting pulling out of the aluminum in the head.
Second, you will need fuel management. Larger fuel pump, larger or additional injectors and either a standalone or some form of piggyback computer. With a URD 7th injector setup, the only control you have over engine management is the ability to retard timing and the ability to add fuel; that's it. And my countless posts on here asking people about their tuning experiences proves that even 99.9% of the population here won't even try it. A standalone is in a completely different ballpark because now you're doing far more than adjusting two parameters.
I love to see people experiment, just know going into it that you have a project ahead of you.
Second, you will need fuel management. Larger fuel pump, larger or additional injectors and either a standalone or some form of piggyback computer. With a URD 7th injector setup, the only control you have over engine management is the ability to retard timing and the ability to add fuel; that's it. And my countless posts on here asking people about their tuning experiences proves that even 99.9% of the population here won't even try it. A standalone is in a completely different ballpark because now you're doing far more than adjusting two parameters.
I love to see people experiment, just know going into it that you have a project ahead of you.
Whoever mentioned the BMW 328i as an example of a "reliable" turbo set-up automatically loses all credibility...
We have had about 4-5 BMW turbo equipped cars (328i & 338i BMWs) blow turbos in under 30k on the clock... They're garbage... Now I do hear nice things about the Ford EcoBoost turbo'd engines in the trucks.
I figured I'd just add my two cents on that... heheh
Uhh... BMW 328 is a 3.0L straight 6. The turbocharged engine is the 335 which is 3.0L straight 6 with twin turbos. (Also on the 135 and 535 and probably somewhere else too)
They had high pressure fuel pump problems. Basically sorted out now.
Singtoe
New member
Easy enough. There is a power steering bracket right there. Make a bracket from the turbo flange and the power steering to trianglate that structure.
Plus, a strap to the ac bracket and it is done.
As for tunning. Pay some one to tune it.
Robb235
Senior Member
Not sure I understand why so many people are hot on the tuning aspect. People slap on the TRD supercharger all the time without tuning. Sure, tuning would help a lot, I'm sure. But why would it be mandatory on a turbo setup and not a blower setup if you're running the same psi?
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Skidmarcx
New member
If you want the most out of a turbo/SC tuning is a must... Why do something this drastic and settle for factory tuning? It seems to work with the TRD setups I guess the factory program adjusts well... I don't know. In the LS community tuning is a must with FI or your done from the start... Guess its different when your dealing with 10.5+ compression ratio and throwing on a power adder
Mr. B
New member
Greg_Canada
New member
There are countless issues of running a trd blower with no tune. EGT's spike, it pings if you are in a high gear at low RPM (too much timing), and goes lean up top (not enough fuel).
A turbo would multiply these problems exponentially. Just because a turbo is at the same PSI as the S/C, it does not mean it is flowing the same amount of CFM!
Robb235
Senior Member
The impression I'm getting from a lot of people in this thread, is that tuning is a MUST if you're going to go with this turbo kit. But yet there are plenty of 4Runners out there with TRD superchargers with no tuning at all.
I agree that to get the most out of forced induction, a tune is needed. But since you can't just plug in your laptop to the vehicle and tune it with HP Tuners, getting a custom tune on these trucks isn't nearly as accessible.
Like I mentioned above, the LS community has the benefit of simply plugging in HP Tuners to change the ECM parameters. We don't. I think LS motors have way higher CR than we do.
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Robb235
Senior Member
Back to this question....
Never having owned a Taco, I have no idea if they are configured the same way under the hood (hoses, wires, space, etc) as 4Runners. Can anyone shed any light?
Skidmarcx
New member
Yea it's unfortunate that there is no plug in tuning software available... And yes LS engine are 10.5+ CR. If and you want to take a chance with FI on your engine with a factory tune go for it... Like I said it seems many have done it... And if you experience no problems then more power to ya...
BlackWorksInc
New member
Bah, you're right... I can't keep track of the numbers anymore...
The High Pressure fuel pumps were one of many problems. They're peizoelectric direct injectors fracture at the tips even after 16 revisions, which is what we've seen, pretty regular pattern of cracking too.
Whitson Metalworks
New member
This was my question earlier. If you got a taco with a dealer installed TRD s/c they would open boxes and bolt it on, RIGHT???? So if you had a tiny turbo around 5psi couldn't you do the same?? Bear in mind I'm not the least bit interested in peak HP, only a little help down low. If I did anything like this I would build my own manifolds and plumbing so the cost would be the turbo and materials, I'm in no way saying I'd drop 4k on a full-on system and not tune it.
Mr. B
New member
5psi on a turbo setup is completely different than 5psi of a supercharger. I forget who posted it about the CFM, but that person was absolutely correct. Everything involved in a turbo setup can affect the amount of power it puts out, even including downpipe sizes.
Singtoe
New member
Taco's are the same as 4unner's with the exception of the AC drier location.
Later models have a rear mount Evap box but every thing else is similar.
Oh, and the battery on the Taco is on the Driver's side.
Robb235
Senior Member
Huh? Wtf are you talking about? Increasing CFM increases PSI. Obviously a big V8 will take more CFM to reach, for example, 8psi than a small 4 cylinder, which would take less CFM to reach 8psi. However, we're not comparing different engines here. We're all talking about the 3.4 liter Toyota 5vz-fe. 8psi from a blower has the same CFM as a turbo, because the size of the motor isn't changing. The only real variance from that would be the temperature of the intake charge from a blower vs turbo. But that wouldn't cause a huge difference between CFM from a turbo vs supercharger.
Robb235
Senior Member
Aren't 4Runner batteries on the driver side too? I would swear that they are, but now I can't remember for sure. I'll look in the morning.
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