Redtruck-VA said

I just dropped by and saw this thread, you guys are really thinking this through. I tried the Megasquirt Pro on my 03 wired parallel to the OEM PCM a couple years ago and failed to make it work with the 545RFE trans and pulled it back off. Did find out a couple things while going through the install. First, the 5.7 does like the 90mm TB's. I first used a 90MM LSX Chinese junk from eBay and it did well after I made a home made IAC. Used a FAST adaptor plate to my truck manifold. Modified the adaptor plate and reused it when I install a BBK FBW 90mm TB after taking the Megasquirt off. Still in search for power without issues I installed a Martin Saine 46RH built transmission and I have had no problems. The most difficult part of the install was fabricating a TV cable. I read where a retro shop connected theirs to the 03 APPS box, but I had already added a cable to drive the manual TB during the Megasquirt install and just connected it there. So long story still long I recommend the 518/46RH not be discounted as a good trans to use behind our hemi's.

Click to expand...

Redtruck-VA said

You have assumed correctly, it's a 03 Ram 1500 as listed in my signature. I originally joined the group because you guys are ahead of the game with Stand alone tuning and transmission swaps. The 46RH/A518 is basically a 727 with a OD unit attached and is a half of an inch shorter than the 545RFE and I simply elongated the mounting holes a little and the stock Ram RCSB driveshaft can be used without modifying. The trans bolts to the block and a 05 manual trans starter is needed along with something like the PATC special conversion flexplate. Any of the three speed shifter work, leaving only the TV cable to be fabricated. I bought a LOKAR TV cable and 10 feet of motorcycle clutch cable from eBay and fab'd the TV cable. Very easy swap. And the Ram cross member would be a good item to use with most any swap I would think. Good luck..

Click to expand...