E46 M3 2JZ Swap update-1/26/13
Time to test fit a few things and address the transmission. From the start we were going to run an Aisin R154 transmission in this project. This transmission is a common transmission used in 2jz swaps, it originally come in MarkIII turbo Supras. These trannys are hard to find, expensive, usually beat down, and at a cost of at least $1500 to rebuild I don’t feel this is the best path forward. Luckily, Aisin the company that builds the R154 is still building them for GM, who installs them in Colorado/Canyon trucks and the Solstice/Sky convertibles. The only differences between the truck and car trannys are the shifter placement (car is further back) and gear ratio. We were hoping to go with the truck trans which is a bit cheaper and has better ratios for Autox, but the shifter placement was too far forward.
Colorado MA5 (Aisin R154) w/1JZ bellhousing. As advertised everything bolted up, only issue in this application is the shifter is about 10″ too far forward. The truck trans would be great in a small car application but the M3 will need a Solstice/Sky transmission which has the shifter placed further back on the tailshaft.
Test fit of bellhousing and the throwout bearing from the GM.
Highlighted in Sharpie is the tab that mounts the Toyota clutch pivot which will interfere with the GM hydraulic throwout bearing. Nothing a sawsall can’t fix.
A bit more clearance needed for the lines coming off the bearing.
Lower hose is the feed, upper is the bleed.
Waiting for a new heart.
Will it fit?… kind of, except shifter location.
Engine sitting in the hole for the first time. This is a test fit without the transmission, clearance is similar to the E36 swap (tight). Here the motor is sitting on blocks on the crossmember, still need to verify fitment with the Supra pan installed. Because this car is going to Arizona I was hoping to run an engine driven cooling fan but there is not enough room between waterpump centerline and the passenger frame rail, however there is room to run a Taurus electric fan, which are noted as having the highest cfm of any fan out there (OEM or aftermarket). I installed one on an LS6 E46 wagon I built a few years back, works great.
The only ‘real’ clearance issue, heater hoses that point right at the back of the head / intake manifold.