overheating with ac on ALL READY!!!

[ohiovx]

I'm not trying to be a jerk here guys, but if you have cooling problems with an electric fan & put a stock mechanical fan back on & it cools. That tells you it has nothing to do with the radiator. There was either an issue with the electric fan not flowing enough cfm, OR the fan & shroud are not matched to the radiator properly. If you get an electric fan that pulls enough air & a shroud like mine, it will pull just as much air through the radiator as a stock fan with a clutch.

Don't know who Ron Davis is by the way.

[VX KAT]

I'm not trying to be a jerk here guys, but if you have cooling problems with an electric fan & put a stock mechanical fan back on & it cools. That tells you it has nothing to do with the radiator. There was either an issue with the electric fan not flowing enough cfm, OR the fan & shroud are not matched to the radiator properly. If you get an electric fan that pulls enough air & a shroud like mine, it will pull just as much air through the radiator as a stock fan with a clutch.

Don't know who Ron Davis is by the way.

Ron Davis Racing Radiators, in Phoenix, AZ. Fast & Loud (TV show about Dallas based custom shop) uses RD radiators in all their builds.

No, don't think you're being a jerk at all, we're glad it's working for you
It's just several owners here have tried various electric fan set ups, without success. Eternal21 initially said he had good results with his (Post #92), but has posted in this thread above that it didn't end up solving it either. So your experience appears to be different than most others here that have tried it.

I personally discussed it at length with the guru at Ron Davis, as I wanted to consider getting one, but he specifically advised against it and thoroughly explained his reason (in post #89). I even said I would get the custom made shroud if it would help with the electric fan set up. He didn't think it would.


Another thing to note, is that during 2010, 2011 it seemed numerous owners here were reporting the same problem of overheating. Myself included. After many new radiators, both stock and RD Racing, and several electric fan installs, most still had the o/h problem. It seems that almost all of these owners eventually replaced the OEM FAN CLUTCH and it resolved the problem! Some tried non-OEM and reported they didn't work very well, but o/h resolved when an OEM was installed (VXorado),


Here's the threads on the RD radiators in VXs and electric fans:
The RD Racing Radiator increased cooling capacity by about 1/3.

• RD Aluminum racing Radiator build thread for Newthings and VX KAT
  http://www.vehicross.info/forums/sho...ight=ron+davis

• See post #4:
  http://www.vehicross.info/forums/sho...ight=ron+davis

• See Posts #73 and #89 and #92 for comments Ron Davis RR made specifically about electric fan set ups:
  http://www.vehicross.info/forums/sho...ight=ron+davis

I just like looking at this gorgeous piece of work!