Now that’s more like it. Good work man. Sounds like your car is running as cool as mine now lol.

Today was a hot day for MN (85*), and all was going great. Did some pulls while tuning and temps were all good.

Until I started driving home, after about 5 minutes on the highway, it crept up to 197 and the fan stayed on. So I increased the fan trigger to 200, it crept up again and stayed there with the fan on the rest of the way home.

It decreased a little when I came to a stop, but mostly stayed at 200-202 with fan running the whole time.

Idk what to do next? Already done just about everything I can think of. About to just say screw it and let it run at 205 on hot days

Any suggestions? I can probably do a little more work on the front bumper. Could raise or vent the hood?

Only other thing would be to do the tucked Scirroco radiator, then could maybe run a puller fan. But that would be investing $100’s more when I just put in a new fan and rad

Okay sure. It’s just been tough because with each mod, the ambient temps have been increasing. So while I’ve seen improvement, every time it gets hotter out some of the gains are lost.

Summer ‘17- Had full Fluidyne rad and dual pusher ebay fans. Would get hot idling, decided to get half rad because the full one was touching my turbo.

December ‘17 - Installed Skunk2 Alpha half rad and 12” spal pusher fan. Couldn’t run a puller bc of waste gate.

April ‘18 - Started to warm up outside, ECT was hot while cruising at higher speed. 60 degrees ambient.
- Replaced thermostat and coolant with OEM
- Added turbo blanket

May ‘18 - Still got hot. 75-85 degree ambient
- Opened up vents in bumper (1.5” hole saw)
- Heat wrapped manifold, exhaust, dump tube
- Added block off plate to drivers side opening


Today I am driving without the front bumper. Will see this afternoon if it stays cool enough, then I know I can get there by getting more air flow to the radiator.

Today was another hot day. With front bumper cover removed, it stayed at 190 all the way home.

It was magnificent.

Now I just gotta figure out how to get enough air flow thru the bumper so that it runs like this all the time.

It has been mentioned, just not with any explanation and I haven't looked into it yet. Thanks for making it very straightforward, I will go ahead and add this as well

I wish I could run a puller fan. My waste gate placement won't allow it unless maybe I do a tucked rad.

Okay so now I have new thermostat, oem coolant with water wetter and a little extra water in the mix. Heat wrap, turbo blanket, block off plate, manifold/rad heat shield, front bumper cut out to entire size of intercooler and as much rad as possible. All this is with S2 half rad and Spal 12" pusher fan.

Today was 90 out, as hot as it gets here. It stayed cool for a long time, but sure enough after ten minutes on the freeway it got hot. It crept up to 200, and the fan stayed on the rest of the drive home.

Not sure what else to do. I guess I'll try more venting and ducting if I can figure out a way. What really bothered me is that even after slowing down with the fan on, it did not cool down significantly. IAT was high too.

I dont get how some people have similar setups in much warmer climates and have no issues whatsoever.

I added the water wetter, but also reinstalled the front bumper cover, this time fully cut out in the grille area so air flow to the fmic and rad is almost completely unobstructed.

Only thing I can do now is trim some metal behind the bumper cover, and try to add some more ducting or plates to funnel air to the rad.


Or, try a puller fan instead of a pusher. I think if I flip my wastegate around so the vacuum port is on the other side, the fan might fit, but would be pretty much touching the wastegate. This would also mean that I turn my dump tube into a hood exit.

The eBay fans are complete garbage! They obviously over rate their cfm flow lol. The last 2 cars I tuned locally had those eBay fans and they both had major cooling issues. Problems completely when away when it was replaced by an oem fan and shroud.