Just wanted to share some info on the radiator I installed after battling heating issues on the wagon during the race season. It was typical to come back after one pass to temps in the 200 degree range. (this is with a scirocco style radiator and mechanical waterpump).
I purchased a bigger radiator and electric waterpump.
Radiator and shroud is from Jegs 555-52081 (22x19 dimension),Jegs radiator mount kit 555-52081, electric fan 555-52105, shroud 555-52061.
You can see the comparison in the new vs old
As you can see i went crazy with my new cutoff wheel and cut alot of the core support out. I cut the bottom all the way across until i reached the bolts that bolt in the impact absorbing piece of metal (This should also keep the frame from moving-pulling apart)
Using the Jegs universal mount- i cut a couple of pieces of angle iron and drilled a hole in each of them to mount through the existing bolt holes for the impact absorber (thick wavy metal bar behind the bumper). I drilled a hole through the angle iron and mounted the top part of the universal radiator using 3 feet of 3/8 all thread and double nutted the radiator mount to keep it from moving from left to right.
I then welded a couple of tabs with 3/8 hole to mount the bottom part of the radiator. It was secured using a metal rod that i drilled a hole and cotter pinned the ends.
I also remove the old motor mount setup that used the mechanical waterpump mounting holes and installed the competition engineering motor plate 4003 (notching for mech fuel pump and gear box) and replaced the mechanical pump with a Meziere WP201UHD - 200 series