Kinugawa Td05 Upgrades - anyone tried one?

[Streamln1]

There's definitely a lot of options in the td05 realm...even a billet ball bearing chra...I think there is a lot yet unexplored on our cars.

[vr4tune]

Compression doesn't help spool. Only makes more power everywhere.

I think you might be wrong here. Pressure creates heat, and heat (THE EXPANSION OF EXHAUST GASSES) spools a turbo. A higher compression engine creates more heat (the reason you can't run as much boost as a lower compression engine can).

[familyMAN]

I think you might be wrong here. Pressure creates heat, and heat (THE EXPANSION OF EXHAUST GASSES) spools a turbo. A higher compression engine creates more heat (the reason you can't run as much boost as a lower compression engine can).

Just going off dozens of real world results on other platforms.

So are you saying higher compression increases EGTs?

You can run just as much boost if you have enough octane.

[familyMAN]

since you're leaving jfast style (kidding!!!) I wanted your input



I am running MHI 20g's... all research I have done shows they will run out of breath around 30psi. While I havent pushed them there yet, I do plan to. Do you not see a benefit of me getting a different wheel design? I was under the impression that the billet wheels (minus the hype) were better because of newer tech on the blade designs themselves. Not just extended tip and smaller shaft, but the curvature of the blades, etc, were a little more scientifically (for lack of a better term) thought out, thus producing more airflow at lower rotational speeds/lower rpm. Am I completely wrong on that? And then a lot of them seem to not run out of steam a quickly as their former cast counterparts.

I was hoping you could take a minute to shine some light on that. I would be grateful

It depends on the design and would need testing. That's why companies like FP and DR are still in business selling great performing turbos. They flog their products before selling them so they know what the results are going to be. But in general, yes Billet with extended tip and smaller hub preform better at higher boost than their cast counterparts and produce more hp. They don't magically spool a ton quicker though which is the hype I was talking about. What you could do is downgrade size and increase boost vs cast and then you would make more or same power with quicker spool. That's what the 6262 was doing vs the cast 67.

What turbine wheel are you running? A standard 20g with a td06h4 wheel should be a good match for a 3.7.

Also what is your hp goal? 20gs should take you pretty far as is.

[vr4tune]

Just going off dozens of real world results on other platforms.

So are you saying higher compression increases EGTs?

You can run just as much boost if you have enough octane.

High heat causes preignition (combustion before spark plug ignition), and octane is a rating of a fuels resistance to burn. So yes you are right if you run more octane (higher heat resistant fuel) you can run more boost!

[futurevr4man]

yes, thats what im running I believe. Pic of turbos below. I would like 800, anything above that is icing on the cake!

[familyMAN]

What about the turbine? The 20g is a td06 turbo so originally came with a td06h wheel that flows very well. These work great on a 2.0 per turbo. When you stick them on a td05 turbine and then on a 1.5l it doesn't work as well. Donnie swapped his 20g to a td06h4 (newer version with better aero) and said the responsiveness and power was improved on his 2.0 vs the td05 wheel.

If you are 3.7, I would guess that the td06h4 wheel would preform better than td05. More flow vs pressure. If you look at the 20g compressor map the efficiency really drops off above 20psi.

[Streamln1]

I know it will physically fit with current manifolds but my Ac is too important here in the desert lol. I don't like having it rest right on the firewall like that either with the engine moving..if I were going that big I would want to change the turbo location more like dragpro's.

[futurevr4man]

no pics of turbine side :/

any numbers or anything I can look at to tell what I have? These were MHI turbos, so I would assume they came with the td06 turbine wheel...

[futurevr4man]

I know it will physically fit with current manifolds but my Ac is too important here in the desert lol. I don't like having it rest right on the firewall like that either with the engine moving..if I were going that big I would want to change the turbo location more like dragpro's.

there is plenty of room between the turbo and firewall. i have looked it over time and time again to make sure it isnt hitting, and its not. I still have AC and power steering... just had to reroute the ac line a little, but no big deal.