sleeperSC

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.

Dew23

iTrader: (1)

1JZ motor is map sensor motor no need for the vpc if you have the factory 1j
ecu.

sleeperSC

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....

Bean

iTrader: (1)

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)

Curry

iTrader: (1)

Grab an emanage blue and toss the VPC.

sleeperSC

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....

TTSC3

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.

Kris9884

iTrader: (7)

This is as close as I could get. Im in the same situation but its for the VVTi and DOES have a MAF. Anyone used the old school HKS VPC on their car? 1 or 2jz doesn't matter, just looking for ideas on MAF replacement without dropping 2k on an ECU just to get to 4-500hp.

gerrb

iTrader: (34)

The Alphabet soup VPC , GCC , SAFC had powered a lot of USDM Supra MKIV from 500-1000rwhp when these aftermarket ECUs where non existent yet .

Kris9884

iTrader: (7)

Well I guess that's one way to keep my car period correct

1997Soarer

iTrader: (1)

Here's the 21st century version of the HKS VPC

http://www.mapecu.com/

And you can program it with a laptop too