When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I shipped my car from Florida to Buschur 2 years ago and had a 2.3 rpm motor built, trans work, etc done. Spent $15K on the build. They deleted the oil cooler without even asking if I wanted it replaced. Motor lasted 5k miles...when it was pulled apart, main bearings were shot. Who knows if it was related. When I called David and asked for support he replied "I'm not replacing a motor with 5k miles...that's a ton of miles, I have no idea how hard it was driven. If you already disassembled it for inspection I'm definitely not warrantying it." Ship it back to us and I'll rebuild it at our cost."
Needless to say, I found someone else to build a replacement and installed a new oil cooler. What surprises me the most in this industry is very few people have a real depth of understanding around the engineering and a lot of things are trial and error.
I know that it saves weight, but why would you remove something that helps to keep your engine cool? Just doesn't make sense to me. I'll take the weight and the extra cooling even if it makes little difference.
Has someone logged oil temp over time with and without an oil cooler? Wouldn't keeping your oil cooler reduce knock sum?
If you just daily driving or in traffic it does nothing for you now if you're doing autocross then yeah you'll need it just depends on what you use your car for
I spun bearings two weeks ago. This is my second failure in three mothns. I think my oil cooler its dirty. Read other post, if you flush the oil cooler its not safe for using again. So I decide delete my oil cooler. My question is: How many people on this thred delete their oil cooler?
Im a littlevery confuse, but I understand that you need ONLY delete the oil cooler (with lines) right? Without touch the thermostat right?
I have to bring the water to a boil to get it to grow longer like the picture. Water boil at 212*F. If you are running around 175-190*F you might be okay. This could explain why some people are not having issue. It is not uncommon to get a 4g63t into the 200-220*F on a hot day if you got a crappy aftermarket slim fan without a shroud. A 1/2 radiator with a weak fan will make it heat up above 200*F for sure.
You are putting your motor at risk if you don't modify the thermo valve in the filter housing. If anything just leave the cooler in place because that thing is not that heavy.
Over 20k I'd say with no oil cooler never an issue. Car is not a track car as of yet. Deleted it a while back as something pierced my OEM unit and caused a leak. Have the delete plugs as well as the thermostat deleted with VW plug mentioned earlier in this thread.
That said I do have most of the components already for a DIY kit using a Setrab core.
I get deleting the OC if the EVO is strictly a drag car making a few passes & then trailering home
But DD'g & claiming weight reduction is questionable. Unless your EVO has seen other serious, weight reduction mods, eliminating the few extra pounds of the OC, lines & fluid is negligible at best
Running higher oil temps & the questions about proper engine oiling is enough to say, this mod is very questionable
Ive tracked my EVO for years & run it hard on the streets so this mod makes no sense at all to me
Now, this makes sense below
Last edited by MinusPrevious; Aug 13, 2016 at 07:58 AM.
local here had good data on an eclipse for eliminating oil cooler. 190 temp with cooler on the interstate one hour drive. same trip 230 without cooler. this was an eclipse and the oil cooler is half the size of an evo. I use the evo oil cooler cause its the biggest best I found. I have half radiator and half condenser honda style. a/c blows ice cold in florida. never overheats. dont think this would be possible without a large oil cooler supplementing the half radiator.
Mitsubishi knew the Evo would be hammered on hard. On the other hand, they are a car company and car companies like profit. Deleting the oil cooler would mean more profit. So, they put it on because they felt they had to.
