Turbo Upgrade / Replacement (MY04/05?)

[<GB>]

id like to go see some cars when these guys go, alexi you can run yours again

[alexeiwoody]

id like to go see some cars when these guys go, alexi you can run yours again

Haha. I'd like to go, but as Archie said Calder park aren't running the events for a while. Let's wait and see

[KiDo_Tuning]

Heathecote? Joking, we know its a bigger joke than Calder having a opening date

[spikey]

I have 2 JDM Legacy Td04HLA turbo from the manual Gt, they are a good upgrade for a Vf38 when they die, I bought them a few years back and are low km JDM units, $850 each.
Terry

[Bugalugs]

How much difference will it make to upgrade JUST the VF38 turbo with either a Kinugawa 19 or 20? Are we talking a massive "holy crap that really plants you in the seat now" difference or more like a "ohh yeah, feels like it has a little more pep to it now"...? Or what kwatw increase could you expect? My cars done 150k, was looking at silicone inlets and tossing up a kinugawa at same time, trying to work out how noticeable it will be or if I should save cash and stick with the vf38 until it dies then upgrade..

[2jz929]

Will be ordering one of these asap as my turbo just blew. Im guessing the 20t is the one I'm after? With a 8psi wastegate?

[2jz929]

Got my turbo off and its wrecked beyond belief.

Thinking for the interim, I'll buy the 20T and put a 1 bar wastegate spring on it and leave it on wastegate pressure, or reuse the standard actuator and continue using the stock boost control. I'm assume this will be safe with the standard tune? The ecu should be able to detect the additional air through the MAF and compensate with fuel?

Is the 19T an upgrade over standard, with any evidence of this?

Will order the new turbo tonight so any answers appreciated.

Cheers,
Jon.

[alexeiwoody]

Got my turbo off and its wrecked beyond belief.

Thinking for the interim, I'll buy the 20T and put a 1 bar wastegate spring on it and leave it on wastegate pressure, or reuse the standard actuator and continue using the stock boost control. I'm assume this will be safe with the standard tune? The ecu should be able to detect the additional air through the MAF and compensate with fuel?

Is the 19T an upgrade over standard, with any evidence of this?

Will order the new turbo tonight so any answers appreciated.

Cheers,
Jon.

Would highly recommend ECU boost control, as yours is an auto (by your profile). TCU is highly dependant on the boost tables in the ECU. And sticking to a good boost curve in those tables is also very helpful to the function of your auto.

Turbo would need a tune. Open loop doesn't use MAF iirc...Would be fine for off boost though.

[Archie01]

Got my turbo off and its wrecked beyond belief.

Thinking for the interim, I'll buy the 20T and put a 1 bar wastegate spring on it and leave it on wastegate pressure, or reuse the standard actuator and continue using the stock boost control. I'm assume this will be safe with the standard tune? The ecu should be able to detect the additional air through the MAF and compensate with fuel?

Is the 19T an upgrade over standard, with any evidence of this?

Will order the new turbo tonight so any answers appreciated.

Cheers,
Jon.

Yes the 19T does flow more than the vf38.
I think you'll be happy with the 20T compared to the vf38...for a little tdo4 they flow pretty well. Great response and more top end than the vf38 which starts to run out of puff after around 4500 rpm.

[Archie01]

How much difference will it make to upgrade JUST the VF38 turbo with either a Kinugawa 19 or 20? Are we talking a massive "holy crap that really plants you in the seat now" difference or more like a "ohh yeah, feels like it has a little more pep to it now"...? Or what kwatw increase could you expect? My cars done 150k, was looking at silicone inlets and tossing up a kinugawa at same time, trying to work out how noticeable it will be or if I should save cash and stick with the vf38 until it dies then upgrade..

Definitely not a holy crap kind of difference just that it keeps pulling the way it should after 4500rpm where the vf38 tapers off. Probably expect another 15 to 20kwatw at the wheels with a tune over the vf38 on 98.

[2jz929]

Thanks for the feedback. I'll order the 20T tonight and also a tactrix cable so Kido can email me a tune to suit. Will be interesting what it runs with just this turbo and a dump.

Courtesy pics of very broken turbo. Even the shaft was snapped after plenty of housing contact.

[Archie01]

Thanks for the feedback. I'll order the 20T tonight and also a tactrix cable so Kido can email me a tune to suit. Will be interesting what it runs with just this turbo and a dump.

Courtesy pics of very broken turbo. Even the shaft

Awesome.....I think you'll enjoy the 20T for what it is.

Wow....good job on the vf38 too!!

[KiDo_Tuning]

Still not the worst VF38 I have seen

[2jz929]

Hey Matt,

What psi actuator do you want me to order with the turbo? Will have a silicone inlet and the dump (pic below), but everything else stock.

[Bugalugs]

How much difference will it make to upgrade JUST the VF38 turbo with either a Kinugawa 19 or 20? Are we talking a massive "holy crap that really plants you in the seat now" difference or more like a "ohh yeah, feels like it has a little more pep to it now"...? Or what kwatw increase could you expect? My cars done 150k, was looking at silicone inlets and tossing up a kinugawa at same time, trying to work out how noticeable it will be or if I should save cash and stick with the vf38 until it dies then upgrade..

Definitely not a holy crap kind of difference just that it keeps pulling the way it should after 4500rpm where the vf38 tapers off. Probably expect another 15 to 20kwatw at the wheels with a tune over the vf38 on 98.

Thanks Archie! Think I am just going to roll with the VF38 until she dies and then do the upgrade to the 20T then.

Are there any obvious signs when your turbo is on the way out? Without removing lots of engine parts to look inside, do they normally get noisy or is there any other symptoms that indicate its going to blow up before it does? Mines done 150k, wondering how long until mine is likely to pack it in?

2jz929 - The upside to the blown turbo is a good opportunity to upgrade so thats a diamond in the rough, if you want to look at it that way. Also with a dump and tune, in addition to the bigger turbo you should see big changes to the power levels.