Recent content by engineermike

You probably know this but I’ve compared logs of PD vs centrif/turbo charge temps. The PD water/air usually starts out warmer than ambient but the charge temps holds very flat over the course of a quarter mile. Centrif/turbo air/air starts out at ambient or close to it but heats up very...

I don't see J2534 listed on that page. I can only speak directly to the OBX FT because PCMTec recommends it and it's what I use. The cheap chinese one I can supply links and only say that my buddy tested it and found it works as long as you steer clear of their supplied software. All others...

Here's the short version: This is the max voltage it will send to the pump. Stock is 12 ot 12.5. This will also prevent BAPs from using their full potential. This is the max system voltage: This is the command voltage at "high fuel flow": These should be modified as you see fit with...

I’m using the Obx ft but my friend tried a Chinese Amazon $30 model and it worked as long as you destroy the virus laden installation software it came with.

If you ever plan on doing flex tuning, then I would suggest PCMtec because hpt hides some important parameters needed for flex.

3.75 pulley on gasoline is most probably fine with just the dw400. If you can mod the tune, I can show you how to send 15.2 volts to it at high fuel demand times.

What is your OSID?

Both Roush and Whipple can be tuned with pcmtec and hpt. My preference as of late is pcmtec. I own both and have used both programs to mod the tunes.

At one time I had this crazy idea to install wastegates upstream of the cats. They could be actuated by boost just like in a turbo car, and open once you get into boost thereby allowing the hot gas to bypass the cat, lower backpressure, and protect the cat brick from the heat. No, it's not...

I'm just referring to the stock AFR gauge in the dash cluster. It tracks with learned stoichiometry, so around 14/1 on gasoline and 10/1 on E85. I only watch the gauge when switching fuels or after a KAM reset. Once I got comfortable that it was working at intended, I don't bother checking...

Quite certain vcmeditor/mvpi and PCMtec can read and modify the Roush tune. Lots of people do this. You don’t wipe out the Roush stuff and start from nothing or even have to replace the os.

That’s not exactly true.

Pretty much except the xs has mahle and Manley pistons and rods. Sorta like a Predator short block but with high compression voodoo pistons.

A voodoo short block but with a predator crank swapped in would be cool. No way I’d try to swap to a fpc in a coyote.

The blower case is wide open after the tb bottleneck.