Need a little help with my 2jz-gte vvti swap.
- Thread starter AE86BLISS
- Start date
Spent some time following GOOGLE search links
Lots of information about 2JZGTE VVTI and Aristo MAFs
But, it is not specific enough.
What I mean is someone will say they are running the JDM Aristo MAF - but then not comment on what housing it is installed in. Wrong diamiter housing, it wont work.
I read about how the USDM MAF works, but again without any referance to the housing = ??????
What I have learned -
The USDM 2JZ GE - MAF was not designed to be used in a turbo car. It will provide a full 5 volt signal at less than 1 bar, and more likely at about .5. That would mean fuel cut at 7-14 Lbs. This MAF can not tell the differance between forward flow and backward flow - Backward flow being the BOV recirculating. So, while it may run, it is less than ideal.
Lots of information about 2JZGTE VVTI and Aristo MAFs
But, it is not specific enough.
What I mean is someone will say they are running the JDM Aristo MAF - but then not comment on what housing it is installed in. Wrong diamiter housing, it wont work.
I read about how the USDM MAF works, but again without any referance to the housing = ??????
What I have learned -
The USDM 2JZ GE - MAF was not designed to be used in a turbo car. It will provide a full 5 volt signal at less than 1 bar, and more likely at about .5. That would mean fuel cut at 7-14 Lbs. This MAF can not tell the differance between forward flow and backward flow - Backward flow being the BOV recirculating. So, while it may run, it is less than ideal.
Spent some time searchng on supra forums - found a few people that have aftermarket MAF adapters and sent them PM's - asking if they know the inside diameter of the housing. Nothing back yet.
Also been searching club lexus, myis.com etc -
Also been searching club lexus, myis.com etc -
I'd be really surprised if HKS, Apexi, or Greddy didn't make an intake kit for the Aristo. That's all you'd need. It would have a MAF adapter tuned to work with the stock ECU.
If not, just make a pipe, or there is this kit http://tinyurl.com/8mr4sn9 that is a universal 3" maf adapter. 3" should be close to what you need. If you're off by a bit with the pipe size the ECU will correct up to 20% by itself using the LT fuel trim. If that's not enough you can also correct it yourself using a SAFC (or something similar). It's pretty much like adjusting for larger or smaller fuel injectors. You'll want to read on how to check and tune by vF, which has been covered here before. It's pretty simple once you understand it.
If not, just make a pipe, or there is this kit http://tinyurl.com/8mr4sn9 that is a universal 3" maf adapter. 3" should be close to what you need. If you're off by a bit with the pipe size the ECU will correct up to 20% by itself using the LT fuel trim. If that's not enough you can also correct it yourself using a SAFC (or something similar). It's pretty much like adjusting for larger or smaller fuel injectors. You'll want to read on how to check and tune by vF, which has been covered here before. It's pretty simple once you understand it.
Here you go. It says it's out of stock but call them and see what they can do
http://eautotuning.com/ty9800af.aspx
http://eautotuning.com/ty9800af.aspx