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Location:
sunny coast, qld
Registered:
October 2002
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1jz single turbo selection
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Tue, 19 October 2004 08:12
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Ok, it is time for me to choose a single turbo for my Corona with 1jz-gte and auto gearbox. I already have ECU, intercooler and fuel system. Will be getting gearbox upgraded soon also.
So the car weighs in at approximately 1150-1200kg and my goal is 11's on street tyres and 10's on slicks in the future. Obviously, this is not going to happen without some trial and error with suspension settings.
So far I have found 4 viable turbo options. These are:
1.
New Internally wastegated 480hp "Hybrid" turbo, 1 year warranty
joiner manifold using stock manifolds
dump pipe
oil lines
inlet pipe
2.
New Super T70 600ish HP, 1 year USA warranty
need external gate
6 into 1 with external wastegate flange
dump pipe
oil lines
inlet pipe
about $300 more than option 1
3. (all included)
Second Hand HKS ta45s kit 650hp, 30 day warranty
6 into 1 manifold
50mm external wastegate
4" dump pipe
oil lines
inlet and airfilter included
about $300 more than option 2 (will be checking this kit out this weekend)
4.
Rebuilt HKS T04R kit 700hp which inludes , don't know about warranty.
6 into 1 stainless manifold
second hand HKS wastegate
then I need
dump pipe
oil lines
water lines?
inlet pipe
about $600 more than option 3
So option 1 & 2 I will be buying everything seperate, option 3 comes with everything but it is made for a supra and I don't know if it will fit in my Rona. It should but not positive. Option 4 comes with most of the stuff but have to get a couple of bits done.
What do you think??? 
Oh and before anyone says, "get a GT35", they cost about as much as option 3 so I can't afford that.
[Updated on: Wed, 20 October 2004 00:45]
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz single turbo selection
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Tue, 19 October 2004 08:32
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option 2.. but dont like no warranty idea
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Location:
On your mum!
Registered:
May 2002
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Re: 1jz single turbo selection
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Tue, 19 October 2004 09:56
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I don't like option 1 at all - it will probably not carry you to 10s and Garrett reckon that you cannot adequately control more than about 350Hp with an internal gate.
2 - what is a super T70? What size are the wheels and the housings.
3 - sounds O.K but you will need to run the sizes of the housings and wheels past some people who have done it.
I say - save your dough and buy something like a Turbonetics - get some feedback from people with regards to compressor and turbine sizes and make a selection from a new range.
As the saying goes "the bitterness of poor quality remains long after the sweet taste of a bargain has passed".
$0.02
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz single turbo selection
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Tue, 19 October 2004 10:10
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t70 is a cheap turbo similar to the Hybrid brand for sale in the US. Specs are:
SHAFT & WHEEL TRIM 64.5mm
COMPRESSOR WHEEL SUPER 70 60.5mm
( similar to Garrett T61 for comparison purposes )
TURBINE HOUSING A/R .84
COMPRESSOR HOUSING A/R RATIO .70
Still waiting on info. about the ta45s. Unfortunately, all I know is it has a .72 compressor wheel but I don't know anything else other than it is supposed to flow about 650hp. Seems impossible to find info. on this turbo. ???
thanks for your input.
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Location:
cronulla
Registered:
September 2002
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Re: 1jz single turbo selection
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Tue, 19 October 2004 15:22
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every manifold that i have ever seen that uses a joiner system off the factory manifolds has flowed incredibly poorly and had nothing but issues with aceiving even as much power as stock turbos. the 6 into one is the way to go, I would be very surprised if you could pull 11 or 10's out of a joiner type manifold. if it was possible it would be a much more common thing as it is damn cheap, not trying to rubbish the idea, just not good from my experience
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz single turbo selection
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Tue, 19 October 2004 22:44
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thanks mate.
your opinion is what i am after
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Location:
Parramatta
Registered:
July 2002
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Re: 1jz single turbo selection
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Tue, 19 October 2004 22:56
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LOL you read my mind with your remark
hahaha i think i would be going with option 2. That should get you the 11's your after.
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Location:
On your mum!
Registered:
May 2002
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Re: 1jz single turbo selection
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Wed, 20 October 2004 00:14
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When considering turbine and compressor diameters you need to consider the small dia (in the inducer/exducer and the overall diameter of each wheel) as going too large in the turbine diameter will create a laggy turbo - just something to consider when comparing turbos.
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz single turbo selection
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Wed, 20 October 2004 00:47
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ok, so I need some more info. then.
I have changed option 2 as I can get the turbo cheaper than expected and now has a 1 year warranty but it is in USA. But now, I can get a custom made 6 into 1 manifold instead of a joiner for it.
thanks guys
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Location:
brisbane
Registered:
May 2003
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Re: 1jz single turbo selection
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Fri, 22 October 2004 06:31
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T70 is about the same as the 60-1 comp wheel... You'll be able to get a bit over 400hp atw's from it...
Sounds very much like my ole 60-1 same A/R's etc... A custom manifold will cost about $650 ish. and definitely worth the money.. with any of those options you will need a custom dump pipe etc...
You will also get lag... it's part and parcel of big HP...
Can get a second-hand 32mm gate for around $300-400 also, a set of custom oil and water lines another $200 new plumbing etc...
Work out exactly how much HP you want and THEN decide on the correct turbo to give you that power... don't work backwards...
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz single turbo selection
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Fri, 22 October 2004 06:37
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| Bentt wrote on Fri, 22 October 2004 16:31 |
T70 is about the same as the 60-1 comp wheel... You'll be able to get a bit over 400hp atw's from it...
Sounds very much like my ole 60-1 same A/R's etc... A custom manifold will cost about $650 ish. and definitely worth the money.. with any of those options you will need a custom dump pipe etc...
You will also get lag... it's part and parcel of big HP...
Can get a second-hand 32mm gate for around $300-400 also, a set of custom oil and water lines another $200 new plumbing etc...
Work out exactly how much HP you want and THEN decide on the correct turbo to give you that power... don't work backwards...
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ive heard 1jz and big single dont lag too much?
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Location:
brisbane
Registered:
May 2003
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Re: 1jz single turbo selection
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Fri, 22 October 2004 06:44
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Mine made full boost by around 4000rpm...
But it was laggy under that... Well compared to the stock twins anyways....
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz single turbo selection
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Sat, 23 October 2004 03:41
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Well, guys I have chosen option 3 and bought the HKS Ta45s kit today. I got it at a very good price considering all the stuff it comes with. And I highly recommend John from Importbitz as he was very helpful and just a nice fella.
My goal is around 400rwhp and I think this turbo will be able to support that as John said his old setup with a HKS t04s made 411rwhp on an rb25 @ 14psi and this turbo is a little larger than that one.
I will take some pics of the kit tonight. I think I may have to mod a couple of things as the kit is made for a JZA70 supra not an old Rona with a 1jz stuffed in it 
Thanks for the input people.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1jz single turbo selection
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Sat, 23 October 2004 04:22
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yes, take oics!
and pm me price - I'm looking at a big single sometime soonish
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz single turbo selection
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Sat, 23 October 2004 06:06
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Pics at http://www.picturetrail.com/gallery/view?p=999& ;gid=5451076&uid=2681245&members=1
Finally got my rear turbo off this afternoon. I don't know if anyone else has had so much trouble with it in their cars. But I had to take the whole brake master cylinder off, then the brake booster. Then I still couldn't get it over the steering box so I had to get the oil lines off. And then it FINALLY came off. It was not a pleasent experience in the 33degree heat today!
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Location:
Vic
Registered:
April 2004
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Re: 1jz single turbo selection
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Sat, 23 October 2004 07:37
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ive heard 1jz and big single dont lag too much?
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That was my understanding aswell. While there is obviously going to be lag when running big singles, everything i have ever read has said that the low RPM torque of the motor does alot to cover it up?
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1jz single turbo selection
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Sat, 23 October 2004 07:52
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love your choice of footwear chris
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Location:
Brisbane
Registered:
February 2003
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Re: 1jz single turbo selection
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Sat, 23 October 2004 09:32
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he's from the sunshine coast - they think clothing is optional and footwear is something you need when going to court.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1jz single turbo selection
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Sat, 23 October 2004 09:40
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I shouldn't really criticise... I'm just put on boardshorts for the first time today. before that it's been boxers all day and nothing else.
Hell, I'd go to work in boardies and a t-shirt if I had the choice
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz single turbo selection
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Sat, 23 October 2004 16:51
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how much for the toilet in the bg? lol looks the goods mate
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Location:
ACT
Registered:
February 2003
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Re: 1jz single turbo selection
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Sun, 24 October 2004 00:03
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Yeah nice shitter!! 
That is a nice looking kit though. Is the turbo bush bearing? How much did you pay if you don't mind me asking?
Does this guy at importbiz have any more or does he just import on demand?
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz single turbo selection
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Sun, 24 October 2004 00:44
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You are all smart arses!
I did mention it was 33degrees! Too damn hot for shoes! I haven't gotten a chance to get to Kmart and get some new pluggers (thongs if you didn't know)
Johal: I don't think the shitter is for sale but I will check with my dad for you if you want
No comment on the lag issue. I guess I will find out soon.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: 1jz single turbo selection
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Sun, 24 October 2004 02:47
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I'd be happy to back one out in your shed anytime. Call me.
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