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04-01-08, 04:37 PM
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#1
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Rookie
Join Date: Jan 2007
Location: nc
Posts: 99
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HKS VPC install on a 1jz-gte sc300
1995 sc300... 1jz AUTO swap into an auto car. I have a HKS VPC and im having a hell of a time finding what chip to put in the thing.
I also cant find a wire diagram to install the thing. there are plenty of write ups on installing it into a mk4 supra with 2jzgte... but i dont have that. i have a 1jz sc300.....
any help would be amazing.
thanks.
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95 sc300 1jz, t61, 3"dp and mp, 3.5" greddy cb, ect
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04-01-08, 07:05 PM
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#2
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Lexus Test Driver
2000 Lexus GS
My Garage
Join Date: Feb 2002
Location: Florida
Posts: 1,405
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1JZ motor is map sensor motor no need for the vpc if you have the factory 1j
ecu.
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2JZ-GTE ,T88H,6speed,aem,phenix exhaust,alpine cva-1005,624changer
greddy 3 row,SSR D5R 19x9.0,10.0 built by THE AUTO SHOP AKA The lexus hyper.
2000 Jade green gs300 Ltuned rims and susp for now.
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04-01-08, 07:16 PM
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#3
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Rookie
Join Date: Jan 2007
Location: nc
Posts: 99
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wow... ok well news to me.
i ordered my 1jz swap and its not here yet. no wonder i cant find anything about it.
LOL - my blunder of the year....
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95 sc300 1jz, t61, 3"dp and mp, 3.5" greddy cb, ect
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04-01-08, 08:14 PM
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#4
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Lexus Fanatic
Join Date: Aug 2001
Location: Alabama
Posts: 5,095
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Sell it and get something else 
the 1jz map sensor limits you to around 15psi before it can no longer sense more boost. (limited to 2bar absolute)
Installing a GM 3bar is doable with injector upsizing and a piggyback of some sort (emanage or safc, etc)
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1995 Lexus SC300 5-speed
-T61 installed, building FMIC and exhaust piping
2004 GMC Yukon SLT
-sofa on wheels and my DD
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04-01-08, 08:33 PM
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#5
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Lexus Champion
1999 Lexus GS
Join Date: Jul 2006
Location: NY
Posts: 1,769
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Grab an emanage blue and toss the VPC.
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04-01-08, 09:00 PM
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#6
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Rookie
Join Date: Jan 2007
Location: nc
Posts: 99
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i planned to run a safc. my goal is 400whp. i read thats all the 1jz auto can handle with a cooler anyway so that sounds good to me.
tell me more about this 3bar map sensor.... please....
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95 sc300 1jz, t61, 3"dp and mp, 3.5" greddy cb, ect
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04-02-08, 12:58 AM
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#7
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Pole Position
Join Date: Nov 2006
Location: GA
Posts: 313
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Quote:
Originally Posted by Bean
Sell it and get something else
the 1jz map sensor limits you to around 15psi before it can no longer sense more boost. (limited to 2bar absolute)
Installing a GM 3bar is doable with injector upsizing and a piggyback of some sort (emanage or safc, etc) |
The 1J sensor doesn't actually "limit" the boost, does it? I think that it just clamps the MAP signal, and makes the car much harder to tune at the top of the airflow map, unless you have something that can control the upper VE portion of the map. Actually, the HKS MAP sensor that comes with the VPC is limited to 24.5psi too, as I have logs from awhile back where the signal was clamped. I just went into the VE table of that map and made adjustments to compensate, but yes, more MAP sensor would solve that. I like the AEM sensor better than the GM though.
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Tags
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1jz, 1jzgte, auto, emanage, hks, limits, map, safc, sc300, sensor, supra, swap, vpc, vs, write  |
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