Thanks for that JP.
Was looking at one of those TRD 1.3/1.5bar caps for the rad and was thinking about getting another one for the charger cooler to match
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| Charge Cooler Cap replacement http://www.gt4dc.co.uk/forum/viewtopic.php?f=13&t=2614 |
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| Author: | Muddy Water [ Wed Oct 15, 2008 8:32 pm ] |
| Post subject: | Charge Cooler Cap replacement |
Is it possible to uprate the charge cooler cap? If so, is it a type 'S' or 'N' fitting? Is it something worth doing? |
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| Author: | Diceman [ Wed Oct 15, 2008 8:43 pm ] |
| Post subject: | |
IMHO it is just bling. IIRC they run a 0.7 or 0.8 bar rad cap as standard. The water should not get to temp sufficient to generate that kind of pressure IMHO or else you have an interwarmer and not an intercooler! I have never found the chargecooler fluid to become hotter than "Tepid" when dunking a finger in it. I must admit to finding it quite warm once but teh chargecooler pump had failed. |
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| Author: | Muddy Water [ Wed Oct 15, 2008 8:48 pm ] |
| Post subject: | Bling |
Thanks for that JP. Was looking at one of those TRD 1.3/1.5bar caps for the rad and was thinking about getting another one for the charger cooler to match
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| Author: | Diceman [ Wed Oct 15, 2008 8:56 pm ] |
| Post subject: | |
erghh - yes I bought one many years back  Mainly so that they matched.
I also bought some silly TRD aluminium oil filler cap and all kinds of junk. TBH it depends on what you want it for m8. Bling has it's place. |
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| Author: | Muddy Water [ Wed Oct 15, 2008 9:16 pm ] |
| Post subject: | |
I've been rumbled
Just looking at dressing up the 205 a little bit but was looking at practicality as well as bling. I also like to keep to a theme. 
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| Author: | TrackToyFour [ Thu Oct 16, 2008 12:34 am ] |
| Post subject: | |
Quite right Nigel, style is important. The last thing you want is for your engine bay to be spoilt by a poxy standard spec I/C cap  We need to keep an eye on JP to ensure he's not letting the side down 
FWIW the Koyo ally rad for the ST205 uses the same size cap as the top mount I/C tank. |
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| Author: | Muddy Water [ Thu Oct 16, 2008 1:35 pm ] |
| Post subject: | Cap Rating |
OK. Just been out to the car and had a look under the bonnet. Both caps are rated at 0.9 bar. However, the fitting is subtly different, that is, they are not inter-changeable. The rad cap is a type S (so I'm led to believe). The charge cooler cap is slightly larger and deeper. Umm! Going to hunt around the net and see if I can get more info. |
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| Author: | TrackToyFour [ Thu Oct 16, 2008 2:54 pm ] |
| Post subject: | |
Fensport stock the 1.5bar TRD charge cooler/Koyo ally rad caps. The one you want is the Type S, TRD Part No. 16401-SP020 described on the pack as TRD Radiator Cap. All the other writing on the pack is in Japanese. |
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| Author: | Muddy Water [ Thu Oct 16, 2008 9:04 pm ] |
| Post subject: | |
I'm confused 
TRD Japan http://trdparts.jp/english/list_st-celica.html quote - TRD Radiator Cap: 16401-SP030 NENGUN http://www.nengun.com/trd/radiator-cap quote - TRD Radiator Cap: 16401-SP002 S Type - Relief pressure 127kPa(1.3kgf/cm2) 16401-SP020 S Type - Relief pressure 147kPa(1.5kgf/cm2) 16401-SP030 Type N - Relief pressure 127kPa(1.3kgf/cm2) So which one would I want for the radiator and which one for the charge cooler 
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| Author: | TrackToyFour [ Thu Oct 16, 2008 9:18 pm ] |
| Post subject: | |
I'm confused why you are confused......
For the ST205 top mount charge cooler tank you need the Type S, TRD Part No. 16401-SP020. Its still called a radiator cap on the TRD packaging. The same cap will also fit the aftermarket aluminium Koyo R1958 engine radiator for the ST205. This uses a different size radiator neck to the OEM radiator. i.e. you can't use an OEM rad cap on an aluminium Koyo rad. If that's still not clear give me a bell m8 
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| Author: | Muddy Water [ Thu Oct 16, 2008 9:26 pm ] |
| Post subject: | |
Clear as Mud(dy Water) 
So, if I understand correctly.... TRD Radiator Cap: 16401-SP020 S Type - Relief pressure 147kPa(1.5kgf/cm2) fits both the Charge Cooler and the Koyo Rad. So can I assume that TRD Radiator Cap: 16401-SP030 fits the standard rad
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| Author: | TrackToyFour [ Thu Oct 16, 2008 9:33 pm ] |
| Post subject: | |
Muddy Water wrote: So can I assume that TRD Radiator Cap: 16401-SP030 fits the standard rad
Yep, I'm pretty sure that's the case. I have three TRD rad caps buried in the back of the garage or loft. They were incorrectly sent by Fensport. I did try and dig them out this afternoon to check on the part number but they've gone walkabout
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| Author: | Diceman [ Thu Oct 16, 2008 9:35 pm ] |
| Post subject: | |
http://tinyurl.com/4fk6d Chargecooler is S type OEM Rad cap is N type Enjoy the music 
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| Author: | Muddy Water [ Thu Oct 16, 2008 9:39 pm ] |
| Post subject: | |
Very good
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| Author: | TrackToyFour [ Thu Oct 16, 2008 10:55 pm ] |
| Post subject: | |
N.B. I've edited JP's post for clarity |
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