200R4 update

jbc426 said

The MSD crank trigger won't work with the SMPT computer.

Are you sure they won't stack, even with the crank spacer between them (crank/ to /stock flex plate/ to / spacer/ to Wilcap flexplate)?

How thick would the crank spacer have to be so the flex plates wouldn't touch? That's all it would take to make it work..

Click to expand...

Well, I went out to Pick & Pull today and did some climbing around and measuring under a few trucks with 5.9's.

The stock 5.9 SMPI (EFI) flex plate WILL fit with the kit spacer and the replacement adapter flex plate with the ring gear on it(if I cut down the spacer to allow for the thickness of the stock flex plate).

The Wilcap adapter plate that allows you to bolt the motor and trans together will NOT fit with the stock SMPI flex plate in place. The reason is they leave too much aluminum in the way.

On the TCI kit, the aluminum is removed at the back of the block, leaving plenty of room for the stock flex plate to remain. The down side is, I will have to cut and trim the large square TCI adapter myself. A small price to pay to have a 4 speed overdrive automatic that take a fraction of the power to drive compared to a 500 or 518.

From what I've found on the internet, the 200r4 will cost me 1/2 a second in the quarter mile versus the 1 & 1/2 seconds in the quarter that the 518 will cost me, plus it requires a lot less surgery to the car.