GT17 too small?

[cali yaris]

if i were to do it again, i'd trade engine management for a good solid water/meth injection setup. (on low boost)

Yeah after reading more on here (special thanks to Morgan for actually doing it), I probably would too. May still get around to it.

[Jeemee]

It's a Garrett. Comes off a Saab 9-3 and are pretty easy to come by.

[Morgan]

Originally Posted by cali yaris

Yeah after reading more on here (special thanks to Morgan for actually doing it), I probably would too. May still get around to it.

worth every single penny! good for cooling and reduces knock, what could be better? HIGHLY recommended, especially if you don't end up using a piggy back or some type of other engine management!

(yes, you could probably tune it out if you can advance your timing, but I can't so instead I use it as a safety feature not for performance)

[cali yaris]

we can slap in a small turbo and run it without major problems with the 1NZFE?

No one said that. There is a risk involved with any major engine modification, including this. What I said is that at least two of us have run turbos and not blown our motors. That is all the data there is -- so choose CAREFULLY before you jump in.

[CASTREX]

Originally Posted by PK198105

Can someone make a list of PSI vs Gain or am i talking through my butt?

yeah, through your butt


Just kidding


Is not that simple. It depends on the turbo you use and your set up. So there is no way to say x amount of HP per psi.

You could said though that for any given set up the car puts out xamount of HP for psi. That would be true within a psi range.

IE:

If Garm's old set up made 180hp at 8psi and lets say the base power was 100hp, then you can said his turbo made 10hp per psi. You can also assume that the same set up at 10psi would put out 200hp.

As the PSI goes up and you start going out of the effeciency area or the turbo, the numbers will change (decrease)...

[CASTREX]

Originally Posted by cali yaris

Yeah after reading more on here (special thanks to Morgan for actually doing it), I probably would too. May still get around to it.

One of the advantages of standalone management is that you can switch between multiple MAPS...

So you can have th everyday map for regular gas, then a Meth map and finally the all out race gas map.

The Meth map comes pretty handy when you want to have some fun and don't have some VP handy... or if you don't want to pay the race gas price.



240-250whp for every day driving on regular gas
260-270whp on meth
300+whp on race gas

[The Spectacle]

Originally Posted by Tamago

and the fact that it makes some of the best hp/lb of ANY engine in any car in the world.

*thud*

Now I've heard it all.

[Tamago]

the next person that uses the term "slap on" in the same sentence as "turbo" needs a permaban.

[mikenacarato]

spectacle needs a permaban..........we already have enough bs on the forum as is.

[cali yaris]

but now seriously is the 1NZFE able to take a turbo without modifications without destroying it?

No one can answer that question with any certainty. I'm not sure how many different ways I can say that. I can only point at the real world data we have, me and Tamago who ran turbos on the 1.5L motor with no damage. Loss in longevity? Again, can't answer that either.

Maybe in 3-5 years, when a lot more people have tried and either succeeded or failed, the question can be answered with some data to back it up.

[turboecho2005]

Originally Posted by The Spectacle

*thud*

Now I've heard it all.

Has anyone ever told you that you know nothing about cars? or is that a first too!

[The Spectacle]

Its a first.

[mikenacarato]

Originally Posted by The Spectacle

Its a first.

now like a 2nd or 3rd...

[Tamago]

bench racing = real-life, knuckle-skinning experience, didn't y'all know? that's why we can "slap on" turbos and coilovers....

[PETERPOOP]

lol @ the bashing on spectacle.

[Tamago]

Originally Posted by PETERPOOP

lol @ the bashing on spectacle.

you feel left out?

[CDavis7M]

I don't have any experience with a Yaris, let alone a turbo one. But, I do have a turbo supra.

Here are some of the basics that I know about Turbo cars. Please let me know if I am wrong though.
-A car with a Turbo stock will have an ECU that is set to retard timing at higher rpm / higher boost.
-Turbo cars have much lower engine compression and are better able to handle boost.
-NA cars try to achieve a Air/Fuel Ratio of about 14.7, probably richer than that at about 13-14 or less when at full throttle.
-A Turbo cars ECU is set to run at 11-12 AFR at full throttle. Running richer allows the gas to cool the piston and reduces the risk of detonation.
-Turbo cars usually have some or all of the rotating assembly forged.

So, basically, running a turbo without any modifications on an economy engine, you will detonate with AFRs around 14, even at 7psi. I hope someone before me set you guys straight but this thread looks like Honda Tech. It's just horrible.

[Tamago]

Originally Posted by CDavis7M

So, basically, running a turbo without any modifications on an economy engine, you will detonate with AFRs around 14, even at 7psi. I hope someone before me set you guys straight but this thread looks like Honda Tech. It's just horrible.

guessing you missed the part where we suggested bigger injectors to help with the "stock" AFR's ?

when the car goes into open loop mode, larger injectors will provide more than enough fuel to keep boost mode cool