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Location:
Gold Coast
Registered:
June 2004
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1jz wish list
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Mon, 13 September 2004 14:34
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So I was thinking about how much power I wanted to get out of my Soarer and how much money I wanted to spend. OK well the car is a daily driver so anything over 250 rwkw would probably be bit excessive, and anything under this amount would probably not require a turbo upgrade ( or close enough to this number )
The car currently has an FMIC and BOV, 3" exhaust off the "y" pipe including cat and boost cuts is ass off, estimated power 170 rwkw
the wish list:
Part Cost
Apexi AVC type R - $670
Apexi Super AFC II - $540
Apexi Rev/Speed meter - $340
HKS Cam gears - $440
HKS Cams - $999
440cc Injectors - $300
Exhaust Dump pipe - $350
Fuel Pump - $250
- $3899
This doesn't include installation prices , I hope to do as much of it myself as possible , and have it all done at once to save retuning. The apexi items were chosen because from what i read they could be linked to each other to enable easier/better tuning short of a stand alone unit and it doesn't hurt that they look cool
with all these parts I'm hoping to get a solid 230 rwkw at 1 bar. Is this a good estimate? anyone got better suggestions?
Let me know
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Location:
Perth
Registered:
August 2004
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Re: 1jz wish list
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Mon, 13 September 2004 14:52
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Mate for the amount your spending on just the apexi stuff you can go out and buy a full on aftermarket ecu why would you bother with all the piggyback stuff??? Although the apexi stuff is popular in japan its because of the unavailability of good aftermarket ecu's.. A problem we dont have here...
If you want to make full use of your other upgrades dont muck around and just get a good fully programmable ecu.
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Location:
Gold Coast
Registered:
June 2004
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Re: 1jz wish list
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Mon, 13 September 2004 15:54
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thats what I was thinking but the only one I could find was a microtech for about 1599 new ( v12 or something ) for just the unit , not including installation and tuning, plus I dont really need all the hassles that come with a total ecu and the compilcated soarer wireing when im happy with the power the other units will provide with less of the hassels
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Location:
Canberra
Registered:
August 2002
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Re: 1jz wish list
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Mon, 13 September 2004 20:50
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sorry i know this is a little off topic,
but is this soarer blue? and have a GT wing? you didnt happen by chance to race a black mk3 supra on the goldie recently did you? 
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz wish list
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Mon, 13 September 2004 21:25
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I am in the same dilemna as you about the ECU choice. Everyone says to go and get a fully programmable computer but firstly the car is auto and therefore the new ECU would need to be piggybacked and also, 90% of the cars I know of around here that have aftermarket ECU's are never actually running right. They are always complaining that something is not quite right.
Just recently, my turbo blew so I am biting the bullet and going single turbo. I was leaning towards the Greddy Emanage with the optional ignition control and laptop programmable bits. This is now though. Before, when I was planning on keeping the stock twins I was just going to get SAFC. The Emanage is just a little more tunable than SAFC and a little less tunable than Apexi Power FC.
Hope, I haven't confused anyone with that jumble 
Also, do adjustable cam gears actually do anything besides look pretty? Also, I read on ALSC that you can't change the inlet cam gear as the sensors are on that side and the ECU does funny things.
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz wish list
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Tue, 14 September 2004 00:23
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i may be wrong.. but i thought the 1jz has 440cc injectors std?
fuel pump is about right, mine was 250-300 for a 280litre/hour(with discount)
but with all the stuff u are doing.. u could almost wack a big turbo on the side
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz wish list
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Tue, 14 September 2004 00:55
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1jz has 370cc injectors.
JDM 2jz has 440cc
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Location:
Gold Coast
Registered:
June 2004
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Re: 1jz wish list
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Tue, 14 September 2004 01:19
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Thanks for the advice , was looking at a big turbo conversion , but wouldnt i need some of that stuff already to get the full potential out og the turbo? The soarer is dark green havent raced any mk3 recently that i can remember 
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Location:
Perth
Registered:
October 2002
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Re: 1jz wish list
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Tue, 14 September 2004 03:23
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I've got a fully programmable ECU (Haltech E6X)on my (manual) 1JZGTE - and am very happy with it.
But if I had an auto, I'd probably go with the E-manage as well. They sound like a good little unit.
- Justin
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 1jz wish list
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Tue, 14 September 2004 04:57
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| Chris Davey wrote on Tue, 14 September 2004 05:25 |
I am in the same dilemna as you about the ECU choice. Everyone says to go and get a fully programmable computer but firstly the car is auto and therefore the new ECU would need to be piggybacked and also, 90% of the cars I know of around here that have aftermarket ECU's are never actually running right. They are always complaining that something is not quite right.
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Thats because 90% of people are either too cheap to get it tuned properly throughout the whole rev range, or install it themselves and fuck up something small without realising it, and are too cheap to pay someone to sort it out.
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Location:
Brisbane
Registered:
July 2002
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Re: 1jz wish list
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Tue, 14 September 2004 05:36
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| CrUZsida wrote on Tue, 14 September 2004 14:57 |
| Chris Davey wrote on Tue, 14 September 2004 05:25 |
I am in the same dilemna as you about the ECU choice. Everyone says to go and get a fully programmable computer but firstly the car is auto and therefore the new ECU would need to be piggybacked and also, 90% of the cars I know of around here that have aftermarket ECU's are never actually running right. They are always complaining that something is not quite right.
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Thats because 90% of people are either too cheap to get it tuned properly throughout the whole rev range, or install it themselves and fuck up something small without realising it, and are too cheap to pay someone to sort it out.
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exactly
like all those people with 1jz's that went into limp mode "cause they put a man box on auto computer"
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1jz wish list
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Tue, 14 September 2004 08:27
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For ecu's: is there a huge difference between sequential and batch fire? Eg. Microtech LTX12 has sequential ignition but wolf 3d v4 doesn't (on 6 cylinder).
I know a computer is only as good as a tuner and unfortunately there are no good tuners around my area 
I am still leaning towards Emanage at this stage though.
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Location:
Perth
Registered:
August 2004
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Re: 1jz wish list
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Tue, 14 September 2004 13:16
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You have actually mentioned two different things here batch fire and sequential injection is different from the sequential ignition on the microtech you were mentioning.
1JZs can be run in sequential ignition or wasted spark mode...
In terms of sequential injection thats a different story. The factory computer uses batch fire so do most production engines even the 1uz and the rb26dett uses a form of batch injection.. This means that the injectors fire the fuel all at the same time... sometimes they run semi sequential where you have each three drivers alternating.
Sequential injection is when each injector is individually controlled and the fuel only gets injected when the inlet valve is open.
In performance terms because the injectors are not putting fuel directly into the cylinder there has been very little or no difference in performance..
Where sequential injection is good is when you want really good fuel economy as you dont tend to have little wells of fuel being put onto the back sides of the valves (although in performance terms this helps cool the valves).
Unfortunately with sequential injection because you can only inject fuel when the inlet valve(s) are open you have a much shorter time period to inject the required fuel to get the desires air/fual ratio so you need MUCH bigger injectors...
So in short sequential ignition is worthwhile but not paramount.. as for sequential injection... Dont bother just get it to alternate each three banks of injectors.
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Location:
Brisbane
Registered:
May 2002
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Re: 1jz wish list
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Tue, 14 September 2004 13:25
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Engines with sequential injection don't have really big injectors... think about it, the inlet valve is only open for ~25% of the combustion cycle, so the injectors would have to be HUGE, at least 4 times larger than normal... and of course with such big injectors you run into problems with resolution, so your fuel efficiency advantage goes right out the window.
No, they use normal size injectors, but that's OK because sequential injection is only a real advantage at low load/low rpm conditions (ie cruise) when injector duty cycles are less than 25%. Once duty cycles creep above that point it means you've opened up the throttle and the advantage of sequential fire isn't there any more, so the injectors start firing into a closed valve the same as batch fire. It all works out.
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Location:
Gold Coast
Registered:
May 2002
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Re: 1jz wish list
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Tue, 14 September 2004 23:07
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Also Norbie, sequential injection will only fire that Injector for that cylinder that fires in that 1 engine revolution. Batch fire on say a 6 Cylinder would fire 3-6 at a time.
JZ Engines (both 1 and 2) have a batch fire injection. 3x2. As the firing order on a 6 has 2 cylinders firing at anyone time. So it makes sence to open the injectors in three(3) pairs.
(1-4)(3-5)(2-6)
This is the best way and would be a waste of outputs to be fully sequential.
Igition on the JZ Engines (both 1 and 2) ARE sequential however.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1jz wish list
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Tue, 14 September 2004 23:23
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the initial question which spawned all this actually asked about sequential ignition
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