TF 4JB1 Top Mount IC Update
Posted: Tue Oct 07, 2008 7:32 pm
Hi all,
Just an update to the last post about putting a top mount cooler off a 3.1 Bighorn on my 2002 Rodeo.
It all bolts up no dramas to the original inlet manifold, just make sure you get all the mounting brackets with the cooler if you're gonna do this mod too. Had a few issues when it came to rotating the turbo compressor housing, had to drill and tap another M5 hole as only 4 of the 5 housing bolt holes lined up. Also had to fabricate new mounts for the wastegate actuator. All up took prob 3 or 4 hours to fit.
Had to cut a fair chunk out of the bonnet bracing as the cooler and the plastic surround sit pretty high. A 1" body lift would give heaps of clearance but i wasn't keen on that. Marked out and cut the hole in the bonnet using the rubber boot as a template and hey presto, we're done!
The cooler made a noticeable difference in low RPM torque but not massive amounts. In the next week or so it's gotta get Dyno'd and the pump and boost pressure tweaked to suit. Will let you know how that goes.
Chris
Just an update to the last post about putting a top mount cooler off a 3.1 Bighorn on my 2002 Rodeo.
It all bolts up no dramas to the original inlet manifold, just make sure you get all the mounting brackets with the cooler if you're gonna do this mod too. Had a few issues when it came to rotating the turbo compressor housing, had to drill and tap another M5 hole as only 4 of the 5 housing bolt holes lined up. Also had to fabricate new mounts for the wastegate actuator. All up took prob 3 or 4 hours to fit.
Had to cut a fair chunk out of the bonnet bracing as the cooler and the plastic surround sit pretty high. A 1" body lift would give heaps of clearance but i wasn't keen on that. Marked out and cut the hole in the bonnet using the rubber boot as a template and hey presto, we're done!
The cooler made a noticeable difference in low RPM torque but not massive amounts. In the next week or so it's gotta get Dyno'd and the pump and boost pressure tweaked to suit. Will let you know how that goes.
Chris