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Champion Radiator Aluminum 3 core swap

Discussion in '1st Gen. Tacomas (1995-2004)' started by 1997tacomav6, Apr 12, 2018.

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HAS YOUR CHAMPION RADIATOR CORE FAILED?

  1. Radiator core failed 5k

    4 vote(s)
    10.8%
  2. Radiator core failed 10k

    3 vote(s)
    8.1%
  3. Radiator core failed 15k

    0 vote(s)
    0.0%
  4. Happy with radiator?

    20 vote(s)
    54.1%
  5. Radiator defect when new?

    5 vote(s)
    13.5%
  6. Radiator failed after 25k

    5 vote(s)
    13.5%
  1. Mar 19, 2021 at 12:18 PM
    #721
    RattleTractor

    RattleTractor Lube: It's the key to penetration.

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    I stuck an update into my post from before after receiving a warranty replacement.
     
    Dalandser likes this.
  2. Jun 22, 2021 at 10:39 PM
    #722
    04Pre_Runner

    04Pre_Runner Well-Known Member

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    My Tacoma version of the Koyorad (weren't you running the 4Runner one?) has cracked somewhere. I'll need to pull the shroud to see where. I can see dried coolant on my skid and along the entire bottom of the radiator. I'm sure mine failed right behind the shroud somewhere. Very upsetting and I'll likely look into custom options now.
     
  3. Jun 23, 2021 at 2:00 AM
    #723
    RattleTractor

    RattleTractor Lube: It's the key to penetration.

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    Check the radiator hoses for leaks! I did have a warranty failure, but after installing the replacement I was still leaking coolant. Turned out to be my fault for under-tightening the hose clamps.

    FYI- The first radiator failed right where a column of fins attaches to the upper tank. Rear-facing, drivers's side, upper corner. Verified with a pressure tester and soapy water after I replaced it.

    Overall it's really too bad, though. The Koyorad Racing radiator seemed like a great replacement for the frequent-failure Champion units while also offering improved cooling. I can attest to the improved cooling- both with aftermarket coolant temp and EGT gauges.
     
  4. Jun 23, 2021 at 6:23 AM
    #724
    04Pre_Runner

    04Pre_Runner Well-Known Member

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    I’ll be removing the shroud to inspect things this weekend. I’m really suspicious of the radiator because I have two new constant tension clamps and two new radiator hoses.
     
  5. Jun 23, 2021 at 11:17 AM
    #725
    Rldanie

    Rldanie Punisher78

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    Engine Performance upgrades: Supercharged (Magnuson) FIC/6 Champion Radiator Toyota Corolla thermostat 168° JBA Headers JBA cat back exhaust Upgraded fuel pump Volant Cold Air Intake With custom plexiglass cover TransGo Transmission A340F Valve Body upgrade B&M Transmission cooler Methanol Injection 2 inch pulley Future Plans Supra Injectors Light weight crankshaft pulley Leather seats Off-road upgrades 3” rough country lift 33x12.5” Dick Cepeks Other upgrades: JL Audio 12W6 Sub in custom box JL Audio C5 Mids and tweets all the way around Sound dampened whole cab Transmission temp sensor Gen Tex rear view mirror (temp and compass) Blue instrument panel, a/c control panel lights, shifter, ashtray, glove box. Blacked out badges Blackout bumpers and grill MariMoto Projectors with demon eyes LED Taillights Second generation leather steering wheel with audio controls Custom leather wrapped automatic transmission shifter 3rd gen 4 Runner key ring light (blue) 3rd gen 4 Runner hood scoop
    You can’t use red coolant in the champion Radiator

    It says so right on the box
     
  6. Jun 23, 2021 at 1:49 PM
    #726
    Yetimetchkangmi

    Yetimetchkangmi Well-Known Member

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    Photo?

    Cuz my box, still in my garage to send back to Champion on warranty, doesn't indicate green or red.
    In fact when I called to order, dude said " a radiator is a radiator, right?" - first clue this was a shit product...
     
    04Pre_Runner and otis24 like this.
  7. Jun 23, 2021 at 4:26 PM
    #727
    Rldanie

    Rldanie Punisher78

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    Engine Performance upgrades: Supercharged (Magnuson) FIC/6 Champion Radiator Toyota Corolla thermostat 168° JBA Headers JBA cat back exhaust Upgraded fuel pump Volant Cold Air Intake With custom plexiglass cover TransGo Transmission A340F Valve Body upgrade B&M Transmission cooler Methanol Injection 2 inch pulley Future Plans Supra Injectors Light weight crankshaft pulley Leather seats Off-road upgrades 3” rough country lift 33x12.5” Dick Cepeks Other upgrades: JL Audio 12W6 Sub in custom box JL Audio C5 Mids and tweets all the way around Sound dampened whole cab Transmission temp sensor Gen Tex rear view mirror (temp and compass) Blue instrument panel, a/c control panel lights, shifter, ashtray, glove box. Blacked out badges Blackout bumpers and grill MariMoto Projectors with demon eyes LED Taillights Second generation leather steering wheel with audio controls Custom leather wrapped automatic transmission shifter 3rd gen 4 Runner key ring light (blue) 3rd gen 4 Runner hood scoop
    1997tacomav6 [OP] likes this.
  8. Jun 25, 2021 at 7:00 PM
    #728
    RattleTractor

    RattleTractor Lube: It's the key to penetration.

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    That's VERY interesting. I think I'd rather use the OEM-recommended fluid and a stock radiator than the Champion with green coolant, then.

    FYI Koyorad Racing says to use OEM-recommended fluid.
    What type of fluid, coolant or antifreeze does Koyorad recommend?
    50/50 coolant antifreeze mix is mandatory. Use OEM manufacturer's recommended coolant. Note: Coolant additives do not contain the necessary anti-corrosion properties as 50/50 coolant antifreeze mix. Coolant additives should not be used. Prior to installation, a complete cooling system flush (including heater core flush) is mandatory in order to eliminate any old coolant, contaminants, mineral deposits, and previous additives. Dex-Cool is not to be used with Koyorad all-aluminum radiators. Follow vehicle factory service manual for proper filling of the cooling system after a Koyorad all-aluminim radiator has been installed. Reference vehicle owner's manual for coolant capacity, then 1 additional gallon on-hand to top-off.
    FAQ Page Link
     
    04Pre_Runner likes this.
  9. Jun 25, 2021 at 8:57 PM
    #729
    04Pre_Runner

    04Pre_Runner Well-Known Member

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    There is a third aluminum radiator option from Cold-Case now. Just not sure if it will be any better than the Champion or Koyorad. I called them today and wasn't convinced it was really stronger. All they could confirm was their test truck had been running it for 4 months. @1997tacomav6 is probably right and these things are too flimsy to hold up to any flexing. I'm just not sure I want to drill out my radiator support for a custom braced radiator that I can't guarantee I'll be able to purchase again down the road.

    Cold-Case 95-04 Tacoma radiator
     
    1997tacomav6 [OP] likes this.
  10. Jun 25, 2021 at 9:11 PM
    #730
    1997tacomav6

    1997tacomav6 [OP] V6 5sp,RegCab,TRD Supercharger,Haltech,meth, 700k

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    V6 5sp,RegCab,TRD Supercharger, 1.9” pulley, methanol injected Haltech ECU, AC TRD supercharger,(MUST DO) TRD supercharger ported, rebuilt 3 times over 500,000 miles, every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 2” pulley,(300hp) (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, 4runner bucket seats, Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks chrome push bar, chrome nerf bars, add a leaf for rear springs trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Corbeau bucket seats Snow Methonal kit stage 2 Champion 3 core aluminum radiator Linex bed liner Haltech stand alone ECU
    You don’t drill out your radiator support, you use the oem holes,
    You may as well just keep replacing it then every 150k with an OEM type
     
    Last edited: Aug 15, 2021
    04Pre_Runner likes this.
  11. Jun 25, 2021 at 9:32 PM
    #731
    04Pre_Runner

    04Pre_Runner Well-Known Member

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    I was just referencing a post you made that said your custom one wasn't a direct fit. I might've misunderstood. I'm not afraid to drop $1000+ now if it saves me from replacing my radiator every 5 seconds.

    My issue with replacing with OEM type is that the original OEM radiator part numbers for our trucks are out of production. Denso doesn't make one of the same quality of the 15 year old stock one I removed in February. The new "OEM" standard just cools worse. Even when removing air from the system and running the same thermostat the truck just runs hot. So I took that rad out and put it in my project truck for now.
     
  12. Jun 25, 2021 at 9:49 PM
    #732
    Rldanie

    Rldanie Punisher78

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    All I know is I’m running 175° Engine temperature in 100° Colorado heat with my Champion radiator and the green stuff
    Oil temperatures are at 190°
    Loving it
     
    1997tacomav6 [OP] likes this.
  13. Jun 26, 2021 at 8:55 AM
    #733
    RattleTractor

    RattleTractor Lube: It's the key to penetration.

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    1KZ motors NEED to be kept cool, which is why I went to the Koyorad Racing aluminum radiator. (Just search some combination of "1KZ" + "losing coolant/overheating/cracked head/etc" to find other forum threads on this topic). If it came to it I wouldn't be opposed to dropping in a fancy "custom" radiator, but I'd much prefer to keep everything as close to stock as possible. At least the Koyorad unit just bolts in (and thus could be replaced with a Denso unit in a pinch if I needed to.)
    --

    x2 on current radiators for our trucks not measuring up to the original OEM units installed in the factory (made by Delphi/Harrison, I think).
     
    04Pre_Runner likes this.
  14. Jul 29, 2021 at 5:43 PM
    #734
    98tacoma3rz

    98tacoma3rz Well-Known Member

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    What’s the consensus on the koyorad aluminum radiators? Are they failing like the champions?
     
  15. Jul 29, 2021 at 6:24 PM
    #735
    04Pre_Runner

    04Pre_Runner Well-Known Member

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    I was going to tear my truck apart this weekend and find my leak (hoses are all fine with no coolant residue) but then my backup vehicle’s steering rack got destroyed by an alignment shop.

    The T4R 4Runner thread for their Koyorad version didn’t have many recent opinions either last I checked.
     
  16. Jul 29, 2021 at 7:06 PM
    #736
    Rldanie

    Rldanie Punisher78

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    My Champion radiator is still running strong….Because I use the green stuff like Champion says to do
     
  17. Jul 29, 2021 at 9:12 PM
    #737
    Nessal

    Nessal Well-Known Member

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    Is there a reason not to keep using the OEM one? It sounds like everything is crap compared to it unless you get a custom one made for big bucks. I figured if the OEM one made it to 200K for me and still going, it can't be half bad right?
     
  18. Aug 14, 2021 at 9:35 PM
    #738
    970btu

    970btu Well-Known Member

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    OME, SPC UCA, ARB w/warn 10K winch, TG Rock Defense Rear, Marlin Clutch, Custom hi clearance under bed spare mount. 285/75/16. A ton of repairs done and a list up to come modifications.

    Thanks for this information. Im going to take some measurements from an 04 and compare them to my 99. I don't mind making a well in the hood for the rad cap if that's all I need to clear. I have an Orilies radiator thats just not keeping it cool on the hiway. Ive done multiple flushes, and burps, replaced the fan clutch thermostat, water pump all with genuine Toyota parts (expect the Rad itself). Im ready to try one of these If its not going to leak and keep the 6pack of hamsters running cool.
     
  19. Aug 15, 2021 at 4:42 PM
    #739
    slander

    slander Well-Known Member

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    Just an fyi you can still get the OEM radiator for $370 from Toyotapartsdeal.com

    I don't know how you guys are having cooling issues. I'm running a stock, 5lug 4cyl radiator on my 3.4 and it stays nice and cool, rock crawling in 95*+ humid heat with the AC blasting at full, a big ass steering cooler infront of it and a winch/frame bumper combo blocking most of it. The only time my Tacoma ever had cooling issues was when the fan clutch took a dump on me.
     
    Digiratus likes this.
  20. Aug 16, 2021 at 5:05 AM
    #740
    cynicalrider

    cynicalrider #NFG

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    stock like oem right? Whats the height on that sucker? I want to make a tighter skid and I think I need to go this route.
     

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