anyone here turbocharged his 1nz-fe?

[dhoeze]

guys,

just a newbie here... could anyone here share his experience on turbo charging the 1nz-fe engine?
thanks so much!

[roc]

I haven't done it myself, but have been looking into it. Here is a link for turbos for various applications, including the 1NZ-FE. Good luck

http://www.capa.com.au/turbo_kits_petrol.htm

[dhoeze]

thanks for replying roc...

i did see this on the net... and found that the price is too pricey for me... i am into custom turbocharging cars.. i,with my friend, turbocharged his 4g92 engine on his lancer and still running fine.

i just want to get some info on trubocharging an 1nz-fe.. like engine management,fuelling,safe boost, etc..

thank you very much!

[neil85AE86]

I might pick up an echo as a commuter this fall, and I will more than likely boost it, but probably no boost til next spring when I can use my ae86 as my daily driver again. I'm thinking log manifold with T25 or similar sized IHI, ~5 psi boost with Aquamist waterinjection and megasquirt as an EIC is what I have in mind. Probably cost about $2-2.5k CDN to DIY plus about 40-60 hours labour.

Neil

[bgrieger]

5psi and you consider water injection? 5psi and I'm still debating if the intercooler is worth it.

[neil85AE86]

If you read the 1nzfe turbo story at elprototypes.com you'll see that the engine is not a good candidate for boost at all. I personally do not want to splice any piggy backs into the factory engine management, a standalone extra injector controller and Aquamist system will allow the stock stuff to be left alone. All they need is a vacuum connection for boost and tach signal. I figure if I run premium and then water injection from 3-5 psi should eliminate the need for any timing retard. That engine design is going to be so prone to detonation, anything that can be done to cool the intake charge should be considered. I don't like the idea of using an I/C either due to packaging and plumbing. I figure with the water injection I can just tap into the washer reservoir, is it a 4L reservoir like most cars these days?

I'm not looking to build a monster, just a daily driver with a little added torque.

Neil

[bgrieger]

I did read it. IMO, someone screwed up on their initial setup, and either pushed it too far too early, mis-tuned, or missed something in the build. I don't fault them for trying or the error, as it's easy to make an error, and detonation is no one's friend except for diesels. Perhaps their engine had an internal fault that was destined to fail. Who but them really knows?

That said, I have never seen a motor than can't take boost. I would disregard any conclusions about the engine in general not being up to the task from this one example, as there are plenty of other examples of successful installs out there. The primary source of success story is the supercharger kits on the market and running. As the motor does not care what the boost is generated by, the superchargers available are a testimonial to the fact that boost can be used quite successfully. I wouldn't go running insane numbers, but 10 lbs should not be much of a strech.

The loads on the rods (seems to be the concern from the EL initial attempt) and cylinder pressures added from (as a reference point) 10 lbs boost do not rise higher than the already existing compression and expansion loads of the piston starting and stopping on the end of the rod at TDC and BDC stock. I will agree that with stock compression, 10psi would be the limit of what I would try on a street motor for fear of detonation, but boost it will take.

Bob

[neil85AE86]

one of the reasons that they could have ran into trouble is the fact that they were trying to piece together a marketable kit, and unfortunately the most important part to creating a relieable street turbo car is the engine management, which can also be the most costly single component, and since they were trying to make it affordable, I think they started off pretty basic. One assumption I've been making is that the Echo has a fuel pressure regulator and return line, but I just remembered my old Tercel didn't, does yours have a fuel return line to the gas tank?

I personally think most engines should run well boosted, the life of the engine tho will be relative to the amount of boost. Even with perfect engine management the sheer mechanical stresses will take some toll and eventually the motor will fail.
Boost is very unforgiving, if every aspect of a motor wasn't designed to accomodate it, something can and will go wrong, example; my original 4age had very soft injector seats, one eventually blew out under 10-13 psi, this created a lean condition in the respective cylinder, just moments after detonation started she threw a rod. I've since replaced the seats with the firm hard rubber seals from a 4agze(as well as the block)... just one of those things I didn't think of when installing the GZE injectors.

Neil

[bgrieger]

All echos have the very cost effective no return line solution, and use a single "black box" that incorporates the filter and the regulator. That is the first thing group of things that have to go. In their place, I'd use a Walboro in tank pump, new, larger fuel line, add the non existant return line and prep the sending unit to take it with a bulkhead fitting and an aeromotive rising rate regulator. The rail will have to be modded to accept another line out as well, but that's a fairly simple matter if you made it this far...

I've never seen the injector seals pop before...then again, I've never pushed that much through a formerly normally aspirated motor before either...dropping a rod from a single bang is normal though...

[dhoeze]

so if i am planning to just boost at 7 psi.... should i go to upgrading the injector size or just add an extra injectors??? i was planing to use e-manage as my management...
planning to use a mitsubishi turbo td04hl coz i am more familiar with mitsubishi parts. this is my first toyota thats why i need more inputs about the engine and turbocharging a toyota engine...

thank you so much guys for your replies.. it helps me alot...

[neil85AE86]

If you are using a piggyback you might as well upgrade the injectors rather than run extra injectors, it'll be cleaner looking and easier. The only reason I want to run extras is I don't want to splice into the harness with a piggyback ECU like the e-Manage.

Neil

[dhoeze]

got it... any problems with emanage wiring it wid the 1nz-fe??? coz with mitsubishi 4g63t sometimes emanage fries coils... wats d feedback of users using the emanage on thier toyoyta engines??

neil.. thanks a lot man.... d o you have the link on the turbocharging the 1nz-fe that you guys are mentioning under elprototypes??

[MRQtwinturbo]

someone gimme a quick update...so there is a custom turbo kit avail for echos??...i was looking into possibly getting an RS and having my tuner make a one off kit if possible but our main concern is with engine management....how finincky is the stock ECU and how does it respond to boost??....

[bgrieger]

Greddy has a kit. Outside of that, superchargers from TTE/Blitz. The EL problem description has changed slightly from when I first read their posts in that they reason that an offset crank is the problem behind why the rods can't stand up to increased power for long...uneven loading on the comrpression stroke. Now, they also suggest that the engine can still put out 50% more power without much risk. That would also make it perhaps the weakest Toyota internals design ever, but possible. Their report suggests the rods are letting go before the pistons, and not on the bolts or bearings, but the beams from what I gather...

Don't get me wrong though, as I still believe these cars can be boosted higher, but there is something to think about when none of the kits exceeds 150hp output...supercharger or turbo!

[Killa_Kojak]

why not just boost a civic instead of a butt ugly echo? it would be cheaper, run faster, look better, and wont get blown off a on ramp due to high winds...damn ugly echos