[Supras] Radiators and sensors?

[Khalid Almufti]

Rockey,
     Thanks for the feedback on your CXR radiator experience.  I would be very interested in the modification you've done.  

So for I am running without the A/C, so until I decide to reinstall the AC the lower fan should not have radiator interference issues. 

Thanks,
/Khalid 
90T

--- On Sun, 5/3/09, Rockey Fox <supr91tt at yahoo.com> wrote:

> From: Rockey Fox <supr91tt at yahoo.com>
> Subject: Re: [Supras] Radiators and sensors?
> To: Brian.Walker2 at VDOT.Virginia.gov
> Cc: supras at supras.com, kalmufti at yahoo.com
> Date: Sunday, May 3, 2009, 5:25 PM
> I
> bought and installed the CX Racing aluminum radiator off
> e-bay last fall. It required a bit of modification but I
> managed to fit it in the car while retaining the stock
> fan/clutch and used the stock shroud. I did have to go
> without the lower electric fan due to the thicker radiator
> not leaving enough clearance to miss the AC clutch.
> Personally I am very pleased with the radiator and the
> quality is good in my opinion. Since I installed it the temp
> gauge hasn't moved above the 1000 rpm alignment that is
> normal in my Toy.
> I could e-mail some pics and describe the required mods in
> more detail if you're interested.
> 
> Rockey 91T
> 
> From:
> "kalmufti at yahoo.com" <kalmufti at yahoo.com>
> To:
> Brian.Walker2 at VDOT.Virginia.gov
> Cc:
> supras at supras.com
> Sent:
> Thursday, April 30, 2009 2:51:17 PM
> Subject:
> [Supras] Radiators and sensors?
> 
> 
> 
> Brian,
>     One day we have to cross paths.  Your
> experience is so similar to mine, except I probably pushed
> my 7m further as most of my track event were in the peak of
> summer heat in June, while yours, wisely, were off summer
> heat peak with the exception of your latest.
>     According to the machinist, the wear I have
> in my pistons/bores (#1 and #3) was due to running hard
> while overheating.  Though I had pulled into the pit
> area anytime I had noticed the gauge go above normal, which
> I think had happened at most twice, I think damage still
> occurred quickly the way we run the cars in these track
> events.  Of course, this doesn't mean that your
> engine is going to have the same wear as mine since the
> conditions are most likely different. 
> 
>      So my advise to you is to learn
> from my mistake and resolve this issue before the next event
> this summer.  My temporary resolution was to
>  remove the AC condenser, which reduced the air flow
> resistance between the intercooler and stock radiator. 
> Permanent fix is to install a good aluminum radiator. 
> So far, it looks like Koyo is my most likely choice since it
> tends to be a bit cheaper than Flowdyne.  Also on my
> list for thermal management is a larger oil cooler, possibly
> an oil thermostat and an oil temperature gauge.
> 
> Regards,
> /Khalid
> 90T
> 
> Date: Tue, 28 Apr 2009 11:24:54 -0400
> From: "Walker, Brian, P.E. \(Rich.
> Dist\)"
>     <Brian.Walker2 at VDOT.Virginia.gov>
> Subject: [Supras] Radiators and sensors?
> To: <supras at supras.com>
> Message-ID:
>     <648BDB3AA3B1FE4C8C67D8F7642F6EBE0544A491 at 501EXRI01.virginiadot.org>
> Content-Type: text/plain;   
> charset="us-ascii"
> 
> Well, I'm back from my first track weekend in Summer
> heat (although it's
> only April it was mid 90's this weekend) Until now
> I'd only done track
> events in Fall/Early spring seeing ~75 deg. max temps.
> I've got a 8 y/o
> stock replacement radiator (CSF) which still has the A/C
> condenser in
> front of it and Toyota red 50/50 plus water wetter. The
> fact I was able
> to complete the 25 min. sessions in this heat was
> impressive but for the
> first time ever (other than BHG's) I was watching the
> stock temp. gauge
> climb a lot and had to take some easy laps/sections to
> bring the needle
> back down.
> 
> So, I finally need a better radiator and was looking for
> some input.
> I've seen some off brands on Ebay, anyone dealt with
>  those? I've heard
> of fitment issues on some and I plan to keep the stock
> fan/shroud. I
> also found that one model has a port for the temp. sensor
> on a 1jz
> engine. Does anyone know what the thread of the port is or
> if the rad.
> (Koyo?) comes with a plug for it? I was thinking it would
> be a good
> place to put an aftermarket temp. sensor.
> 
> Thanks for any feedback. I was completely impressed this
> weekend that
> this car with 200k (mi) on the stock engine could take that
> kind of
> heat. Was certainly one of the slower in the group which
> isn't normally
> the case but it was a good time to learn heat management
> and making the
> car last (235/255 azenis were getting greasy 2 laps in
> during mid-day
> sessions)
> Brian W-88T
> 
> 
> 
> 
> 
> 
>       
> 
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