racedaymechanic
Active Member
We just got back from a weekend on the Parkway, Its something Ive wanted to do and finally did all I can say Is WOW! its something we will do again many times we are lucky as Its only about an hour and a Half away but @ 4000' the temps are 20+ degrees cooler, The Camping on the Parkway is Primitive No power or Electric but we are self contained so its good. First I am glad I did the cooling upgrades because its a long hard pull to the Top, many miles of 6-8 percent grades lots of slow curves and switchbacks so you never get a chance to gain any momentum. the main problem is you can't go fast enough to lock in the Torque Converter, 30 MPH tops on the curves so trans temps got up to 240-250 at times engine never got above 220, my highest EGT was 1220f that was going from a dead stop from a stoplight at least 8 percent grade AC on High, I will be adding a additional Trans cooler with a fan for the next trip, but all in all I was real happy with the Hybrid HX35 Turbo, My Boost controller kept it at no higher than 16psi and I could pull as hard as the curves in the road would let me, I put it on a 7.3 Powerstroke with about the same setup as me coming home going from a stoplight up a grade, I looked over at him and gave him the nod he did the same and I had several truck lengths on him by the time we crested the hill, it was showing 103 degrees on my overhead outside temp gauge. Im sure he felt bad knowing a lowly 6.5 just kicked his A$$. I have some Pics of the trip to follow