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Location: Camden, NSW
Registered: June 2002
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Unichip, r they a good idea?
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Wed, 10 December 2003 07:57
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Just wondering if this would be a quick fix to a small lack of power in the 7mgte? They say that for 900 bucks u can get your car running 202kws. Seems ok to me, but just wondering on your thoughts, should i just fork out the extrra money n buy a microtech or would this be a good solution for the near future untill i really wanna get some good power gains out of her?
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Location: Brisbane
Registered: May 2002
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Re: Unichip, r they a good idea?
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Wed, 10 December 2003 08:20

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On a stock MA70? Waste of time. You can get well into the 13's with the standard ECU and 12's aren't hard with the Lexus AFM mod. Your $900 could be better spent elsewhere.
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Location: Camden, NSW
Registered: June 2002
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Re: Unichip, r they a good idea?
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Wed, 10 December 2003 08:23

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Thanks Norbie, knew i could count on you 
Im sorta at the stage where i dunno what to do to my car :S, its too slow for me as is, Ill be fitting a 3" exhaust once the car is back on the road but after that not too sure what the next step will be :S
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Location: Brisbane
Registered: May 2002
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Re: Unichip, r they a good idea?
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Wed, 10 December 2003 08:41

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A decent 3" exhaust (including dump pipe, not just a cat-back) and a bleed valve will get your car into the high 13's, which is plenty quick for a street car. The next thing I'd do is get rid of the piss-poor factory intercooler and replace it with something decent. Beyond that, a high-flow CT26 and the aforementioned Lexus AFM upgrade sounds like a good idea, and by then you should be doing 12's. As the current owner of a 12 second car I can tell you you'll be faster than practically everything on the street!
Of course you should re-torque the head on that 7M before you do any of this, if you haven't done so already. I'd also upgrade the headgasket before high-flowing the turbo, just to be safe.
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Location: Camden, NSW
Registered: June 2002
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Re: Unichip, r they a good idea?
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Wed, 10 December 2003 09:59

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Yeah, as we speak (well during the day neway ) i have a metal gasket going in with arp bolts, the head has a tiny crack in it so gotta get that fixed this week sometime if its fixable and then when its back on the road, 3" from the turbo back (should i go bigger?) and then bleed valve. As you said, a new cooler will be on the way, but thats all i had planned. The lexus afm, if i put a new ecu in, wont it change to map? isnt map easier to tune etc? Or isnt it worth the hassle as stock ecu is good enough?
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Location: Brisbane
Registered: May 2002
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Re: Unichip, r they a good idea?
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Wed, 10 December 2003 13:04

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It depends how far you want to go, but if you're keeping the CT26 there's not much to be gained from an aftermarket ECU IMO.
As for the exhaust, again with a CT26 there's no point going further than 3". Of course you can put a 4" system on if you like, but it will only be noisier.
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Location: Camden, NSW
Registered: June 2002
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Re: Unichip, r they a good idea?
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Thu, 11 December 2003 03:48

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what is a good feul cut defender? i wanna run around 12-15psi but i cant because of feul cut, how much is it going to set me back?
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Location: Brisbane
Registered: May 2002
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Re: Unichip, r they a good idea?
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Thu, 11 December 2003 05:21

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The fuel cut is there for a reason; IMO you should not install a FCD without supporting mods. If you do the Lexus AFM mod your fuel cut will be moved up to 20psi or so, and because you're increasing the capacity of the fuel system it's safe to run that much boost.
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Location: WA
Registered: November 2003
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Re: Unichip, r they a good idea?
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Sun, 14 December 2003 16:52

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wot are these supporting mods your talkin about??
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Location: sydney
Registered: March 2003
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Re: Unichip, r they a good idea?
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Sun, 14 December 2003 21:54

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yr are at the stage nbow where u have to spend alot of money to get it goin faster
u have done all the cosmetic stuff round the outside of the engine
now if u want good power u will prob have to
turbo upgrade
ecu upgrade
maybe forged pistons
descent intercooler
thats over 5000 grand worth of stuff there
i would either not spend too much and save for bigger turbs and ecu
if u build yr engine up slowly it will cost u more in the long run
think about how u want yr engine to be in 3 or 4 yrs
save the money now and do it soon rather than doin abit now abit later and so on
the problem with little increases in power is u get used to it very quickly and after afew days u still want more power
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Location: Sydney
Registered: May 2003
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Re: Unichip, r they a good idea?
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Mon, 15 December 2003 01:48

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meh if ur going 2 spend $5k go 4 a 2jzgte conversion ...
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Location: Brisbane
Registered: May 2002
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Re: Unichip, r they a good idea?
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Mon, 15 December 2003 03:15

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I'd love to see a 2JZ conversion done for $5k!
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Location: Sydney
Registered: November 2003
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Re: Unichip, r they a good idea?
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Mon, 15 December 2003 03:35

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mos
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Location: Camden, NSW
Registered: June 2002
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Re: Unichip, r they a good idea?
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Mon, 15 December 2003 06:46
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ok...
I am now thinking of the afm + injector upgrade. Ive searched the forums n see that the rx7 injectors are the ones to use?
How much would the lexus afm set me back? Are they readily available from wreckers? or should i just get it through toyota?
Also, will i need a feul pressure regulator and bigger feul pump or will the standard ones do the job? If i need a bigger pump, is there a cheaper option than a brand new bosch? like a 2nd hand 5ltr pump of a holden or something?
Sorry for what may seem stupid questions to some but i really have no idea with this sort of thing.
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