440s+afpr+ Lexus afm

***Turbo Habanero*** · August 17th, 2012, 03:43 AM

Finally caught up to this thread......

My brain hurts real bad !!!!

***jetjock*** · August 17th, 2012, 06:08 AM

Tell me about it. It's sad to see this much fail in the Tech Section.

***Nick M*** · August 17th, 2012, 06:48 AM

The reason air temp is monitored is so the PCM can determine a cold start. When the intake air and coolant are the same, the PCM knows it is a cold start, and the correction factor for running is applied. You can see this with your idle speed. It goes down as coolant temps rise. Adding a resistor to the IAT might make the PCM think the engine is really warm with the large difference between coolant and air. We would have to see what all is decoded in 3p's thread.

**shaeff** · August 17th, 2012, 07:20 AM

If you want to read up on why each part is supposed to be used, take a good long look at this article. Once you've finished reading it, go ahead and read it again. There are always people who do things differently but with varying amounts of both success and utter failure. If you're new to the Supra game and don't have a firm understanding of why each part is highly recommended, I suggest you do it right or don't do it at all.

Read this: http://rob.carlile.home.mchsi.com/lexus/lexus1.htm

Originally Posted by jetjock

Big snike! She's ah big bugga!

I was picturing Ian in his Crocodile Dundee hat and missing one snake skin boot. 10/10 for execution and hilarity!

**7m-gte 87** · August 17th, 2012, 03:46 PM

What would be a good stand alone or piggy back tuner to go with for these mods?

***Nick M*** · August 19th, 2012, 09:14 AM

Originally Posted by 7m-gte 87

What would be a good stand alone or piggy back tuner to go with for these mods?

Larger injectors.

**7m-gte 87** · August 19th, 2012, 09:57 PM

Originally Posted by Nick M

Larger injectors.

I mean what would be best to help tune the 550, lex maf, and more boost. Would I need to go with an aem ems?

***Turbo Habanero*** · August 19th, 2012, 10:05 PM

Best is up to opinion

Stand alone AEM,pro efi ect...

Then

Maft pro

Then

Vpc with 550 chip and Apexi safc,nee ect...

Or just a

Apexi safc/neo

***Nick M*** · August 20th, 2012, 02:17 AM

I have a T04E compressor. They are about 58mm in 57 trim. I would have to double check. Lex meter, 550's, no tuning aside from TCCS and it idles and runs perfect. The further the screw is turned in, the lower the overboost fuel cut. And the better it runs.