Anyone used a tegiwa radiator???

Discussion in 'E46 M3 (2001-2006)' started by M3 R0B, Jun 7, 2019.

  1. 7 Jun 2019 at 12:56 PM #1
    M3 R0B

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    I'm looking at getting a new rad and I saw tegiwa make one for about £200 with ally end tanks.

    I've just now seen there is a discount code for tegiwa in the general discussion page.

    Has anyone used a tegiwa rad before???

    I know they're a good brand in the Honda world and everyone says get mishimoto or csl but I'd rather not spend £500 if the tegiwa is decent.
     
  2. 7 Jun 2019 at 1:00 PM #2
    HookdexM3

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    I know @Scottyboi got one and ended up binning it for a CSF very shortly after
     
  3. 7 Jun 2019 at 1:01 PM #3
    M3POWERBOY

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    TBH Tegiwa have M3 Race cars that run this radiator setup

    If it was £50 in it between the Tegiwa and mishimoto then I’d be saying mishimoto but £300 difference= no brainer - go for it

    If you have issues with it you can return it as not fit for purpose (if it’s that bad!)

    Or if you want to upgrade down the line I’m sure you’ll get a good chunk back
     
  4. 7 Jun 2019 at 3:42 PM #4
    Graham

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    I run a Tegiwa one on my M3 racecar and it sorted out my issues (old oem rad originally). Raced loads on it since and never had an issue.

    I mirror what M3powerboy said, if there wasn't much in it I'd maybe go Mishimoto but it's loads cheaper than any big brands and it does the job. Needed a bit of tweaking of the brackets to fit but not hard.
     
  5. 7 Jun 2019 at 3:48 PM #5
    DiM3ch

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    Thinking about one of these for when i overhaul the cooling system
     
  6. 7 Jun 2019 at 4:05 PM #6
    M3 R0B

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  7. 7 Jun 2019 at 4:07 PM #7
    M3 R0B

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    Is this the 1 you have?? ^^^^^^^^

    Also does this take the stock upper and lower hoses with the plastic elbows and bleed screws??

    I've just got brand new upper and lower hoses
     
    Last edited: Jun 7, 2019
  8. 7 Jun 2019 at 7:20 PM #8
    Scottyboi

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    This is correct.
    The rad I received, the inlet and outlet on the rad were ever so slightly undersized. This didn’t become apparent until I came to bleed the system.
    Also the top left fitting on the rad (when looking at the car) will not line up. I think everyone has this cable tied.

    After this, I lost faith a little and went with the csf rad. Which is a lovely looking bit of kit.
    And although it is physically bigger than the teg rad. It’s easier to fit.

    This being said, I know others have used the tegiwa rad with no issues.
    And Johnny at tegiwa was absolutely fantastic throughout. I have had dealings with them since and been happy.

    It’s definitely an upgrade from the old oem rad as the end tanks must be starting to get brittle by now.
     
  9. 7 Jun 2019 at 10:11 PM #9
    M3 R0B

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    Thanks for your advice/thoughts bud

    I'm happy to have to "make it fit" but do the stock hoses fit onto the upper and lower rad connections???

    When you say the the fittings were slightly undersized... does that mean it leaked?? Or let air in?? So basically useless unless you use custom hoses hose clamped onto the connections?? That means theres no bleed screws.
     
  10. 7 Jun 2019 at 10:35 PM #10
    m3rosco

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    If you just want to future proof the cooling system, I’d just fit a new Hella standard oem rad from eurocarparts or autodoc or similar for like £60.

    If you are serious about cooling, fit one from Collin Reay of Creative Aluminium Fabrications. 75mm core. Perfect fit (as good as factory). £465 so cheaper than the likes of Mishimoto or CSF.

    I wouldn’t be keen on fitting a Rad that doesn’t line up properly or needed cable ties to fit.

    :thumbsup:
     
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  11. 7 Jun 2019 at 10:35 PM #11
    Scottyboi

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    That’s it matey,
    I have silicone hoses with the oem quick connectors.
    The quick connectors clicked on, but there was just enough room, and yes, lost a lot of coolant onto my garage floor.
    As said, others have not had this issue. I was just unlucky.
    I would definitely give it a go for the money
     
  12. 7 Jun 2019 at 11:20 PM #12
    M3 R0B

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    I'm just abit concerned of the plastic tanks bursting when on track, I'm going the ring and spa in 5 weeks and I'm changing the water pump and hoses so thought I may aswell change the rad whilst I'm there and do it all in one go. I didnt know the oem 1 was only was less than £100 so may get the tegiwa and oem, if tegiwa is crap I'll send back and fit oem or vice versa.

    How long ago was it that you tried the tegiwa rad?? If it was years ago they may have improved the design.

    I'll give them a ring on Monday and ask a few questions

    Again cheers guys for the help
     
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  13. 8 Jun 2019 at 4:37 AM #13
    Scottyboi

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    Beginning of March this year it was.
     
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  14. 8 Jun 2019 at 8:26 AM #14
    M3 R0B

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    Oh right very recently then, so the build quality won't have improved.

    I may well just go oem for now then, Id have just liked to have upgraded it whilst everything was out.

    Although to be fair I've done quite abit of track work and hard driving on my original 15 year old rad and it hasn't burst yet.
     
  15. 8 Jun 2019 at 11:12 AM #15
    Graham

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    That's the radiator I had, I have no leaks from the connections & mine fits in as OEM, but as I say I did have to trim some of the radiator brackets & the OEM plastic fan shrouds that it rests on, literally 10 mins with a dremel.

    A new OEM rad probably would be good aswell, but given the fact the Tegiwa one worked for me there's no way I would spend £500 on other brands.
     
  16. 8 Jun 2019 at 2:50 PM #16
    M3 R0B

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    How long ago did you get your tegiwa rad?? Maybe scotboys was just a one off??
     
  17. 8 Jun 2019 at 3:55 PM #17
    Scottyboi

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    Definitely a one off.
    Tegiwa had never come across it. The other people I know that run it haven’t had any issues either.
     
  18. 8 Jun 2019 at 5:50 PM #18
    M3 R0B

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    Cheers Scottyboy,
    in that case I think I'll go for the tegiwa then, people use them for racing so they must be sufficient enough for cooling even though it's a slightly thinner core compared to mishi.

    Just hope I don't get a dud one as I wont really have time to mess around and return it for another one as I wont be doing the work for another 2 weeks


    Thanks for the helps guys, you've helped my decision making
     
  19. 12 Jun 2019 at 6:07 PM #19
    Graham

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    Had it over a year now mate
     
  20. 12 Jun 2019 at 6:20 PM #20
    M3Chas

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    IME any radiator changed over a used 10 year old item will generally bring about an cooling improvement, even on a car where the coolant has always been changed :).

    What is the stock core size of an OEM rad?
     

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