This is more of a what if question and has a small possibility of me being able to do.

A friend of my has a 2005 WRX. He has plans to do a 16G (doesn't want the lag of the 18G or larger). This means I would have a source to get a turbo for relatively cheap that I know the history of. Plus, it may be fun to piece together my own turbo rather than just get a kit.

As for my question, would the TD04 from a WRX be worth using on our cars? It is smaller than a 16G but has his car sitting at 230AWHP right now. Factoring the drivetrain loss, this would be about, what, 260 to the front wheels? Then add to the fact that his is a 2.0 liter and we have 2.4, it should be possible to get a little more power and have virtually no lag. Would this small of a turbo have barely any lag? Especially after a port and polish?

Our cars get to 300 WHP on 12 PSI and my friends current set-up has him running 16PSI. I know different turbos make different power at different RPMS, but it seems like a TD04 could accomplish my goal of 300 WHP. Of course, the question, I guess, is will it spin out and lose momentum at the higher RPMs being so small?

As for price, yea, 16G and 18G are not too bad on price, but there is a market for them. Imagine the price on a turbo that no one wants and is only used to repair/rebuild stock cars.

 

Watching.

 

Dont waste your time with a td04...

 

I'm running a TD05H 18G in my GReddy kit and there's no noticeable lag. I can see and hear it spooling at abou 2300 RPM.

 

Watching

 

Well I know nothing of this haha
soooo
I probably shouldn't take my friends wrx turbo he has laying around and try what you are doing haha

 

Why do you wanna run a td04 on a 2,4l motor? I know of a few SOHC hatches running a td04 and it maxes at around like what 250whp? why do a setup around the turbo when you can do the big16g from zpi or the t3/t4 from dezod? If your gonna go custom do it with a turbo not used from a kit or something. Maybe I just think you wont get the gains your gonna be looking for. People take those off there subbies for a reason...

 

See, that is a better response. Experience in people running the turbo. The problem is that it was not addressed as to why it can not get more out of it. My WRX friend is dyno tuned at 234 AWHP without porting and polishing the turbo. The tuner (who is one of the people who helped develop the Cobb tuning software) said his injectors were limiting him at this point (turbo-back exhaust with no cats and up-pipe with no cat and an intake, upped the boost to 16PSI with spikes to 18PSI). Given our cars make 300WHP at 12PSI, someone needs to point out why this turbo would not be able to do that.

Why would I want to do this? To have a different set-up, to get experience doing it myself, and, possibly, have almost no lag. Plus, I am a college student so finding a cheaper way is better. But to be clear, I am not going to be building this now. I have many things to pay for and will be graduating this year. This is more of me wanting to understand turbos better.

Why should I not do this? I do not know yet, the only response I got was that a SOHC motor maxed out at 250hp. Is 2.4 too much displacement that will cause the turbo to max out? Would I get instantaneous boost almost like a supercharger with my .4 extra liters whereas a 16G or larger may spool up a few hundred RPM later? Is there any way to know if a TD-04 can dish out 300 WHP?

This is not me asking if I should do this. This is me gathering information for ME to make a logical decision on the course of action that I would like.

No one goes to Algebra class hoping to be told "you should be taking Trigonometry or Calculus" every single day rather than being taught anything.

 

My understanding of why the smaller turbine wouldn't be able to exceed much more than the 250 whp is b/c of the CFM ( cubic feet per minute) that the smaller turbine can handle. There is a limit to what each turbine can actually push and and that determines what range of horsepower it can make. You'd have to have a compressor map for the specific set up which will show it's specific range. There is a possibilty of making more power on a different motor with the same turbine but there's only so much more you can make. There's also a range of efficiency where the turbo will start making enough heat you could potentially lose power due to the fact that the turbine is heating the air up significantly. So those are two of the limiting factors to look at. But if you could reuse the manifold and downpipe with a new turbo in the event you blow that one up or decide to go for more power than why not do it for the time being to save a little money before spending more on a larger set up. IMHO 250whp will probably be enough to keep you happy for a while especially if it spools real nice and low. those are the major limits posed by the turbo

 

THANK YOU! It took a while, but I knew someone on here would be able to explain it to me. You also make a good point, I do not have to keep this turbo forever. Later on down the line I could go with a 16G, 18G, or even a 20G. And by then, I will hopefully have more turbo knowledge and driving experience to make the best of it.

 

Since you guys know a lot about turbos...
I am so new to this stuff I have no idea really haha
but Id like to get involved
I was talking to some car expert about turbos and he said the problem with turboing the camry engine is that it is a high compression engine or something like that?
That the engine would eventually blow a lot earlier than other cars?
Any idea what hes talking about?

 

For a daily driver mostly car what turbo kit would any of you recommend?

 

+1

If you need to ask someone else to recommend a turbo with only the premise of being a daily driver, I would highly recommend learning more about turbos first because first and foremost, the tC is a naturally aspirated economy coupe. However, Toyota likes to overbuild all their engines.

The rods are forged, the pistons have ceramic tops and the '07 tCs have oil squirters, the sleeves are cast ductile iron that's good for quite a bit of power. However, the rods are thin, the pistons' ringlands aren't great for boost, and a closed deck block would be safer for boost (although it's important to note that the Evo X allegedly is going to field an open decked aluminum turbocharged engine.) So yea it's strong, but that's only because it's meant to last forever in stock form.

 

Karate Explosion

 

glad to make you laugh!

 

 

Hey, a 510 with rotor power is awesome.

 

Hell yeah it is.....But im sure that guy up there already knows.....He is a Master Mechanic you know!

 

helping this thread get back to where it's suposed to!!

BACK ON TOPIC PLEASE!!!

 

Oh right sorry....We are Threadjackers...sometimes we cant help it!