Great idea for a thread! I have some questions and maybe a few solutions we have run across I will share.
We have worked on a lot of Coyote powered cars, but only two Coyote swaps - and both were initially done by other shops. Both the E92 BMW (above) and Fox (below) swaps needed a LOT of clean up work and durability upgrades, which we tackled. The E92 became a proper track car after the work we did and the Fox became a much nicer, more functional street car.
We have done dozens of LS swaps in-house and sold hundreds of LS swap kits. Why LS swap vs Coyote swap? Two reasons: COST and SIZE. A built Coyote is pretty damned expensive and for a road race car might make 500 whp, but they are usually short lived. You get it past 5.2L and you spent some SERIOUS money. A Built LS is common and can go to 8.0L inside an OEM block (and 8.7L in tall deck). I'm not guessing, we've done this, a lot, at my engine shop Horsepower Research. This image shows the size thing...
I'm not arguing for LS swaps, just have to always put that out there as a warning. Now we have a customer that asked us to upgrade his 2010 GT which had the lackluster 4.6L 3V engine. 300-315 hp, makes 260-280 whp in NA form with some headers, CAI and tune. Wee!
He wants to move out of the class he was in (NASA Spec Iron) to a class that allows +100 whp (American Iron). Our suggestion was to over shoot the ~370 whp the class allows and go for a Gen 2 Coyote swap, make 450 whp, then use the electronic throttle to restrict the tune to make a "flat power" 370 whp across the board. Old trick, really works. Uncork it for fun events and let it fly!
He went with a Tremec T56 Magnum XL, ARH long tubes, Gen 2 crate motor, and the Ford controls pack.
We have found a lot of part numbers for Gen2 specific parts we need, made a lot of little brackets and doo-dads to make the Controls Pack bits fit, and have the swap mostly done. I will post more here as work progresses. Now I'm gonna go back and read every post and see if we can get some help with:
1. Making the stock gauges work (doubtful - will likely use AiM digital dash)
2. Get some ideas on making a 2011-14 EPAS electric rack (Boss302R rack) working
The wiring and CAN comms are always the hardest part of any swap, and this looks no different. Except that there seems to be only ONE source for a wiring harness to work with the OEM computer (Ford). And there seems to be no way to make one street legal (which is what about half of our LS swaps end up doing).
#1 making the stock gauges work is only able to get half to work.
1. Oil preassyre is off a dummy switch that only petrays if there is ground created. its the gray wire where the engine harness and body harness connevt by a kind of chunky swuare connector.
2. The fuel still communicates as normal as long as you are still using the same float and connector ontop from stock pump. I used aeromotive a1000 fuel pump and they adapt the float to attach to it. Or power by the hour has a return style fuel hat that is about identical to stock style.
3. Collant gauge does not read from the coyote pcm to the cluster. The cluster does signify it is recieveing signal but is in a different PPM that the cluster is unable to display it. I routed to using the heater core hose and aftermarket gauge to pull temp.
4. Rpm works perfect just by connecting the original HS can bus wires to the coyote HS can bus wires.
5. battery will read from can bus but some have ran i to issue of battery light staying lit due to over charge beacause the altenators are 200 amp or they just dont register the altenatir operating but the battery gauge functions perfectly.
6. Now funny one is the speedometer. I jave tried every which way to get the 2 wire oss to convert to 3 wire communications to the pcm using a dakota sgi 5e, adding resistor, hooking staright to pcm ect. But nothing works. I know gen 1 they had issues of stalling at stops due to no oss signal and you had to pin the pcm connector for the oss to stop this issue. Now in gen 2 what i have noticed is if you tap the gas it dies to an 850 rpm idle for 8 seconds and then jumps up to 950 rpm and stays there until gas is pressed again even if you have drove for hours. I have hooked up a scanner and seen in the live data even sitting at still idle the vehicle speed in the active data reads 40kmh and never changes. So what i think is the deal is that ford performance reflashed the pcm to mimic that the car is always registering itself moving to stop, stoping and stalling issues likenthey had in gen 1 swaps. So i think to get that speedometer to work again is pcm reprograming.
2. The boss302 electronic rack. No question at all in the gen 2 ford wiring controls pack the already have a 12v accessory lead with the HS can + and HS can - that are ment for the EPAS (302 rack) just have to wire them up to it and it shall we ready to rock.
More soon,