I didn't copy anyones measurements, but trial fitted and cut my own. I use it in 45 degree temps and below, and I still never go above the 202 to 204 temp range on my scangauge. When sitting and idling, the temp actually drops lower. This is the same temp range I run in 95 degree weather (summertime) w/o the block. I did not use corrogated cardboard, but a thick, somewhat flexible piece of plastic. It will never distort where it would interfere with the fan.
I modified my heat shield 2 nights ago by cutting a 2" round hole through the left side of it, fitting a fabricated 2" round tubing to it (about 4 or 5" long, pop-riveted x
and connecting up my 2" heat riser tubing to it with a band clamp (hot air intake tubing, that goes to the airbox.) I took some pics of the finished product before I installed it, and afterwards also. I'll post them here tomorrow. This should give me the most hot air available from the cat. I haven't been able to test it out yet, as we've been buried in snow up here in Buffalo, and I refuse to drive it in the snow and salt. (It has never seen a winter or salt before, and I'm not going to start now!) I can tell you it needed more hot air than it had with the inlet of the tubing just sitting by the exhaust manifold. My last test (in 20 degree temps on dry roads,) had air intake temps at about 70-75 degrees. Ideally, I like 100-115 degrees for what I find to be the ultimate for staying in the lean burn mode. Plus, during the same tests, with the heater on, the coolant temp would drop to 175 or so during stop and go city driving. I want to keep the coolant temp steady at 200-204. I'll post the results with the new hot air mod when the streets are clear and dry!
Chris
Re: Hot Intake Air and Radiator Block Mod Details
