1jzgte turbo upgrade - t67-25g or t3/t4 for a street car

[docTRD]

hey all, just wondering if many people have had much experience with the t67-25g / td06-25g turbos and would knw how they would go on a 1jzgte 1st gen, running standard ecu cams etc, opposed to a typical t3/t4 chinese ebay job.
The 25g runs a .68AR turbine housing and .64AR compressor housing. the t3/t4 runs a .63AR turbine housing and .50AR compressor.
they look to be pretty similar performance wise but as most people probably know the t3/t4 turbos are like half the price !

so any opinions? id like boost to start around 2500-3000rpm and pull right to the redline.
cheers
oh and car will be a gx71 cressida :p

[BlakeNZ]

i wouldn't touch the chinese turbos yet. the T67 is a great turbo for the 1jz, but its old technology now. the ball bearing core of a garrett GT30 will give good spool and great power band. how much are you able to spend?How much power do you want.? the stock turbos aren't a bad option if you only want to do low 12sec quarters.

[BlakeNZ]

PS, you need the correct offset to fit 8" wheels on the front. about 35-40mm positive (no more), on my 80 series chassis.

[Lith]

The a/rs you mention of the Garrett turbo mean very little, they are only part of the story so from those specs I can't really say much but if its a cheap chinese one then I'll just roll with the "Go the T67".

They are old technology but they aren't overly laggy for what they are, they are strong and they make reasonable power - not to mention easy enough to get rebuilt.

[docTRD]

hey guys thanks for the input! i was just trying to toss up which turbo was more suited for the 1jz, and yes they are quite old technology but as long as they work i done care, im not looking to buy a turbo that costs more than the engine i.e Garrett etc. ive got a new t3/t4 sitting in home already from previous buying and they go for around $350-$400, whereas the t67 will cost me about $800, is it worth the extra money ? im just lookin for a good torque curve and driveability, id be happy with 250-300rwkw with supporting mods. and yea a low 12 or 11 would be damn awesome and it will be a bit of a mish finding wheels to suit this beast for traction.

[Akane]

1) Don't touch chinese turbos, those ones with the obvious blue badge with the words "TURBOCHARGER" on it. yeah dude, thanks for telling me what it is.

2) I have had TD06-20G experience on my MR2, damn fine turbo but a bit mismatch for your 1 jay'z, I'd go T67, that should shoot you to over 500hp. 25G sounds like a good size.

3) If you MUST get Garrett, try GT3042R or eqiv size.

4) Strongly recommending not get the chinese stuff, your engine is worth more than saving a few hundy. If you absolutely can't afford the brand new turbos try get a good used 2nd hand and get it freshened up.

5) I don't know where you're getting your stuff from but if you're getting a Greddy T67 for $800, that's a damn fine price.

[docTRD]

yea its bit of a hard choice aye, ive heard alot of mixed stories about the chinese turbos, ive heard plenty of good and a few bad. the t67 is an OBX type its like xspower i think, its not Greedy or else id be paying a lot more for it i think! I just can't constitute spending over a grand on a turbo thats why im trying to think of other options aswel like second hand etc. Even 400-450hp would be plenty i think. any other turbos that i dont know about that would suit ? cheers

[BlakeNZ]

take the t67 for that money. good price, and they were the ultimate turbo for the 2.5 litre motors prior to garrett gt30 ball bearing cores coming onto the market and then coming down in price.

[Lith]

No No No, back that back - if its not a GReddy T67 then you are looking at all the wrong turbos. Don't touch either of them, save up until you can get a decent turbo... I didn't realise those scummy buggers were ripping off the T67-25G name too now.

The Mitsi/Greddy 25G is a great piece of kit, but god knows what this thing you might be getting is. Save your money instead of buying something unknown.

[Bazda]

An OBX is the same as the Chinese turbos as its obvoiusly made in China as well but they will be sourcing from a better place unlike most importers who choose the cheap option turbos from China.

Where I source turbos from in China costs alot more than those cheap ones by far! But you get quality and reliability.

MasterPower turbos will be sponsoring me for the up coming race season and I will be running one of their turbos.
If you want a good turbo with a good price tag along with a waranty and also being able to be rebuilt right here in NZ by the dealer for cheap give me a pm I can sort you out with any masterpower turbo.
The price is just a smidge over $1k.

[BlakeNZ]

sorry, i was typing my reply and didn't see your one come up re: not a greddy. I totally agree with LITH.

[avinesh]

yea get master power if you can im running a t70 on my supra an even on stock ecu an fuel it was pretty decent.......

[escortman]

yeh and masterpower can do custom turbos mate got 1 for his 1g ute

[Akane]

Oh all along I was assuming you're talking about a Greddy turbo. In that case just get whatever, looks like you don't really care about your engine anyway, a bit like the young Akane.

[Py7h0n]

Sizing a turbo really depends on what supporting headwork you are doing on your 1JZ.

My 1.5JZ and Innovative T76 (when the head was stock) got full boost around 5300.

With a lot of headwork that went down to 4800, opposite to what I was told .

Now with a forged block and a little more trick exhaust work I'm sitting at around 18psi by 4500, stupid quick for a T76!

I would really recommend a MasterPower as I have seen these really perform well for a few mates. They also do a T66 which will get you exactly where you want to be, with a little room to grow.

[docTRD]

thanks guys some good input here, sounds like the way to go is a masterpower turbo and t66 looks like the right specs for decent spool and still some room to not run out of huff. id much rather driveability over top end any day as its just a street car and dont want to be left behind spooling up some huge beast :p ive still got my spare t3/t4 but il try and sell that to whoevers keen just for a cheap turbo.

[postfach]

Sizing a turbo really depends on what supporting headwork you are doing on your 1JZ.

My 1.5JZ and Innovative T76 (when the head was stock) got full boost around 5300.

With a lot of headwork that went down to 4800, opposite to what I was told .

Now with a forged block and a little more trick exhaust work I'm sitting at around 18psi by 4500, stupid quick for a T76!

I would really recommend a MasterPower as I have seen these really perform well for a few mates. They also do a T66 which will get you exactly where you want to be, with a little room to grow.

What, whoever told you that doing headwork would make it take longer to spool your turbo was a retard, seems fairly obvious that increasing air flow through the head = more exhaust gas = faster spool....

docTRD - IMO sell the cheap turbo you have and save for a bit, then grab one off Barry, the masterpower turbos are pretty damn good for the money, and you'll be glad you spent the extra coin.