Events/Trails DIY Turbo V1.0, Boosted 80 = Happiness

[2KCruiser]

Yeah if this thing passes CA smog, biggest loop hole ever! Would work great for you CA guys. I think with an extended intake it could be good but I would still be very worried about water crossings. I don't think dunking a turbo is anything like dunking a muffler. They can run as hot at 1500 degrees, then dunking them in cool/cold water, with precisely machined parts with tolerances in the thousandths spinning 100,000rpms, I don't see it ending well but would love to be proven wrong.

You are right about the temps and condition of the turbo, however you see that's one of the biggest changes on a remote turbo. Rear mounted turbos run at least 500-800 degrees cooler than a conventional exhaust manifold mounted one. Plus you have great air flow. So typical driving you will see temps go up to about 400-500 degrees at the most which would be very quickly cooled since it's wide open back there. I have seen some youtube clips of a remote mounted Turbo on a 4Runner and a Jeep run right through a river. Also most river crossing are not done at 80mph, (which would be awesome) but the turbo is not even being spooled at that speed so it would be no hotter than a muffler.

 

[The Moe]

Most impressive way to think outside the box! Regarding your comments on running a second pipe to utilize the stock airbox and snorkels. I do like the idea of using the stock lungs but can't help worrying about additional truck-long plumbing. I know this sounds crazy an unorthodox to many but, how about something like this... Crazy, but unique and utility-looking!

Maybe a snorkel from some other application with a little modification!
The attached pic is not mine so I'm sorry for ripping it and the lame photoshop work!

 

[scottryana]

Ok cool well I look forward to seeing the results. But as you add armor to protect the turbo you remove the airflow. Kind of a catch 22. And the speed of the water crossings has very little to do with the spool. In low range up a steep hill at 15mph under load will create more spool than 80mph on a flat highway.

 

[2KCruiser]

Most impressive way to think outside the box! Regarding your comments on running a second pipe to utilize the stock airbox and snorkels. I do like the idea of using the stock lungs but can't help worrying about additional truck-long plumbing. I know this sounds crazy an unorthodox to many but, how about something like this... Crazy, but unique and utility-looking!

Maybe a snorkel from some other application with a little modification!
The attached pic is not mine so I'm sorry for ripping it and the lame photoshop work!

I love it when photoshop comes into play. But yeah, that's exactly what a few people were mentioning.

 

[2KCruiser]

Ok cool well I look forward to seeing the results. But as you add armor to protect the turbo you remove the airflow. Kind of a catch 22. And the speed of the water crossings has very little to do with the spool. In low range up a steep hill at 15mph under load will create more spool than 80mph on a flat highway.

Yeah, I have been thinking about the armor. I think that I can mount a few rows of maybe square tubing and have them run accross the back, maybe mount it up to the factory spare tire carrier holes so it would just bolt right up. So no solid plate to cover it up and still get enough air by.

 

[Riad]

Awesome!

 

[Tapage]

in turbos defense ( in diesel engines and not relative to this specific setup ) I've been driving turbo diesel engine across rivers since 2000 or so .. not a single failure ..

In my experience you never reach any river crossing coming from full boost HW run .. I mean you are probably under 800°F as much when you are attempting river crossing .. plus you always can spend few more minutes allowing some cool down process ..

 

[scottryana]

Tapage,

Where are the turbo's located? If they are in the engine compartment, you are much more protected and drive with a slight bow wave, you would have to completely stop your vehicle, while it is submerged and allow the water to fill the engine compartment to put the turbo under water.

Like I said this might be a great setup, I really don't know, and I look forward to lots of cool testing, and it sounds like 2KCruiser is all about trying things out. I expect there will be lots of evolution in this thread as things are learned just like any new modification.

For a stock fueling, stock computer setup this might be nice since there is a "built-in cooler" by virtue of its location, and that it doesn't need to produce much in the way of boost. Just like anything, choices are good!

 

[2KCruiser]

Since I can't leave well enough alone and I thought I might be able to get a better suited trim size for this turbo, I went over to Turbo Performance in Van Nuys. They said that they can make some changes to the compressor and/or wheel size on the hot side just so get it to spool up even faster.

So I just removed the turbo and this is how simple and easy it was to convert back to a non-turbo. Simply took the filter off the turbo inlet and connected it to the MAF. Then connected the inlet and outlet hoses together for the turbo oil line and shut off pump. Remove the 8 bolt and nuts to remove the turbo assembly.
Thats it!

Took me less than 20 mins to convert back to a Non-Turbo.
Now I have to wait a couple days for Bob over at Turbo Performance to make the changes. Hoping to get a quicker spool up to 10psi.

Took it for a drive without the turbo and after getting use to the Turbo Cruiser for the last couple weeks, I must say it feels soooo sluggish now. I can never go back.

 

[Tapage]

Tapage,

Where are the turbo's located?

Yup engine bay traditional setup.. Not the target of this thread but Tencha has been with water over the hood a couple of times now..

Again I'm looking to know more about this setup not trying to be the negative guy here.

 

[Rookie2]

IIRC, the one pic I've seen of an STS Turbo setup, they had completely removed the muffler. With this setup, do you still need one?

 

[2KCruiser]

IIRC, the one pic I've seen of an STS Turbo setup, they had completely removed the muffler. With this setup, do you still need one?

I tried without the muffler originally, kinda more noisy in the cabin for my liking. However after installing the muffler, sounds came back down closer to stock levels but of course with turbo wine. Did not really see a difference in power, so it might be very small loss in performace with the added muffler.

 

[Backwoods Rambler]

How were you able to pull this off without any additional fuel management devices like we all see in most turbo setups? If it's this simple, why is everyone beating their heads against the wall with trying to figure out air-fuel ratios, EGT's, additional fuel supply ect...?

If this is a viable solution, then I would think the ease of installation alone opens up the turbo option to EVERYONE, no?

Thanks for bringing this to the proverbial table.

 

[scottryana]

This solution runs very minimal boost and low gains much like the TRD Supercharger, that also only uses stock fueling. Not ideal because the stock computer keeps AFR's at 14.7 in closed loop and dumps lots of fuel in open loop, but if you are not adding much boost it is a fairly low risk, when you also run premium fuel. What everyone else is beating their heads against the wall for is when you cross that threshold and want to add more boost and more power, but hopefully I will be working with EMS powered on a good solution for that....

 

[Rookie2]

This solution runs very minimal boost and low gains much like the TRD Supercharger, that also only uses stock fueling. Not ideal because the stock computer keeps AFR's at 14.7 in closed loop and dumps lots of fuel in open loop, but if you are not adding much boost it is a fairly low risk, when you also run premium fuel. ....

Low boost? He mentions in the post above 10 psi. Isn't that the range where some of these issues start creeping in for the front mounted versions?

I thought the superchargers were running in the 6 to 7 range.

 

[scottryana]

PSI is dependent on turbo size. A really small turbo will have to run a higher PSI to deliver the same volume as a large turbo at lower PSI. He is running a small turbo. Really I would be curious to see before and after dyno's, and AFR's.

 

[2KCruiser]

That's exactly what I do not want to do, get into big cost. I personally have a Supra running 24+ psi with an EMS installed. Spent over $1600 alone on race tuning. That's not want I am trying to do here. What I want is a kit that is easy to install, runs at 10psi consistently with no CEL, and estimate under $3k installed. I think I can pull it off. If need be, I am going to try a FMU just to raise fuel slightly under higher boost levels. I will be adding a AEM Wideband, Boost and Water Temp Gauge next week. I will be testing different boost levels and record A/F Ratios. I also think that the big drop in AIT is going to make a huge difference in power even at low boost levels. So, I will share all the info I get after testing. What I plan on doing is a Smog Test, Dyno, and record temps in different ranges of boost. Once I have achieved this, then I will need a ginny pig to try it on and have them testify on their own behalf. Any takers???;p

 

[Rookie2]

I hear you.

 

[scottryana]

Yep, that is exactly what I said when I started looking at doing mine, but I quickly changed my tune. lol. Like I said I am excited to see how your project goes since I am also starting a traditional turbo setup and it will be cool to compare.

That's exactly what I do not want to do, get into big cost. I personally have a Supra running 24+ psi with an EMS installed. Spent over $1600 alone on race tuning. That's not want I am trying to do here. What I want is a kit that is easy to install, runs at 10psi consistently with no CEL, and estimate under $3k installed. I think I can pull it off. If need be, I am going to try a FMU just to raise fuel slightly under higher boost levels. I will be adding a AEM Wideband, Boost and Water Temp Gauge next week. I will be testing different boost levels and record A/F Ratios. I also think that the big drop in AIT is going to make a huge difference in power even at low boost levels. So, I will share all the info I get after testing. What I plan on doing is a Smog Test, Dyno, and record temps in different ranges of boost. Once I have achieved this, then I will need a ginny pig to try it on and have them testify on their own behalf. Any takers???;p

 

[2KCruiser]

Yep, that is exactly what I said when I started looking at doing mine, but I quickly changed my tune. lol. Like I said I am excited to see how your project goes since I am also starting a traditional turbo setup and it will be cool to compare.

Been there, then that. LOL. I know exactly how you feel. Start with a simple project, then you notice you have pulled the entire motor and frame off. I have seen your thread. I have to say, Excellent work and Great quality. That's kinda why I took this different approach. Just testing the waters and seeing what I can get away with without any reprogramming at all.