96 5vz xcab 4x4 TACO TURBO BUILD

Sorry guys, I must have accidentally unsubscribed from my own thread or something.
I have not used a catch can for the almost 3 years I've been boosting and my truck weeps pretty much the same amount of oil as it did before the turbo lol. But on a serious note, $40 for a catch can is absolutely worth it not only to relieve the pressure under boost, but keep intake + valves cleaner and avoid low octane situations. I use a glowshift wideband from eBay and it's been wonderful. And to any "not worth it" people out there, my truck (a 96) now has 260k miles on it and I don't regret putting a turbo on it.
I sourced everything for close to $2000, and my purchase list is somewhere on this thread many pages back.

 

We're did you get a catch can for 40 dollars?

 

Mine was $10 on ebay. Just a hollow can. I packed it with steal wool and put a rubber hose on the intake so the fumes travel all the way to the bottom of the can and have to travel up through the wool before exiting. Helps to precipitate the oil and water from the air. Not the best but better than some $100 cans.

 

So your setup goes PCV > catch can > breather filter or PCV > catch can > intake?
Wouldn't the lack of vacuum on the PCV valve make it not open when it's supposed to?

 

Breather. Don't need vacuum, the pressure will release itself. If you want to connect it to your intake, you HAVE to connect it to the pre turbo section. If you don't, when you are boosting, the pressure will force the PCV closed and your pressure at or less than the boost in your charge pipes will not be allowed to vent.

 

I've just had a check valve between the PCV and intake... which I know is not recommended. Lookin to make my own catch can here soon

 

Yeah, that doesn't do anything. The PCV is a check valve itself.

 

Luv ya buddy!

 

Gio, what do you recommend I do when installing the catch can? I know we both put a check valve on some line to the back right of the mani.

 

Luv ya too brofessor! Lol...
I don't think that other line on the driver side is an issue, just the front PCV line. I picked up a flux core welder and I absolutely love that thing! I'm ordering some stainless steel wire today... and probably make my own catch can

 

Nice!

 

A cool little (lot of) bit of info for you fellow geeks out there.

So I know I'm inevitably going to get scolded and "educated" on fuel delivery component corrosion (which I believe is *mostly* horse poopoo in my extremely biased personal opinion), bad gas mileage, running lean, and high combustion temperatures (which are in fact directly related to the former), but here it goes anyway despite the fact that I'm well aware of any such hype and warnings.

So I've been struggling to shake the sniffer test so I can renew my tags. I'm 1 GPM *or less* above the limit on all 3 regulated pollutants (which I believe is the result of spark plugs gapped too small and the inherent inefficiency of my magnaflow hi-flo cat. I started with a half tank of 85 octane regular gas and have been adding nothing but e85 in increments of 3 gallons each time to test my AFRs and any possible differences in drivability. Remember the point here is for me to pass emmissions, not start a trend of using e85 in my truck regularly.

I'm now at approximately a 1/1.5 ratio of e85 to regular gas, getting ready to add another 2-3 gallons to make it 1/1. I'll start by saying that the truck runs cooler by up to 6 degrees ($130 scan data tool) with me driving rough and it does *NOT* run lean at all with the exception of AFRs reading 16.1 as soon as I take it out of gear, but then within a half a second goes down to 14.5-14.8. It also drives better than it ever did stock with noticeable timing advancement (from higher octane I gather) and smoother idle. I've been driving around *without* the charge pipes hooked up to let the ECU "re-learn" it's stock ways so I can pass.
*No* difference at all whatsoever in WOT or regular driving AFRs. Long term fuel trims read .8, so I'm very impressed with this old girl's ability to tune itself for around 50% total ethanol.
A *tuned* car running e85 compared to regular gas will pollute drastically less (at least 17% less IIRC) CO, hydrocarbons, and Nox.
Gona change the spark plugs and go in for my 3rd test hopefully tomorrow.

 

So you succeeded in running e85 on a stock ecu and no turbo? Maybe running a little lean is the only problem?

 

I wouldn't exactly call it "running lean", but it does read 16.1 AFR right after putting it into nutral for a half of a second or less before it goes back to 14.7~. WOT AFRs non-boosted are 11~ and it runs darn good to say the least.

 

Great thread. This is probably the best source of home brew turbo info for the 5vz.

Any of you CO guys happen to have an oil pan or crossover pipe I can buy off you?

You'll laugh when you see how much snail space there is in a 5vz Tundra!

Gio, does yours ping at high-load, low-RPM like some of the SC setups do? I'm hoping to get over the mountain passes in 5th gear at 65+ like all my turbo cars have.

 

hey does your wideband compensate for e85 needing to run at like 9:1 as opposed to 14.7:1, is that an issue or does it just assume that if the mix is correct it is 14.7 and just adjust accordingly if not. I was curious as to how that worked anyway.

 

Na dude I don't have any of that anymore. I don't ping at all whatsoever at 5 psi. My turbo needs 2300~ RPM to produce boost, so it's all stock power up to that point. Even stock my truck made it over mountains at 65mph no problem, not sure if it's a hearing thing or what.

 

The wideband reads a stoichiometric level at 14.7:1 regardless of the type of fuel. Even if you are running e85 at 9:1, the wideband will read 14.7:1 since its calibrated for gasoline.

I finally passed emmissions after the 5th attempt and a 90% ethanol content in the tank. My truck got used to it and my long term fuel trims read 9-12 lol.

 

Sweet! ^^^^^^ That stuff was sooooooo stressful. I got my tags on too.

My truck doesn't ping at 11 psi of boost. And I can smoke almost anything up the mountains. It does buck/hesitate a tad and run a little more rough though when i go up with the higher altitude.

 

Hmmm... maybe a wee rich up at higher elevations?