st185 gt4 WTA intercooler ?

**st185-gt4** · 10-12-2013, 05:15 PM

hi,

is there any benefit or any hp/performance gain between having the st185 WTA intercooler compared to the stock top mount intercooler for the st185 gt4 ? one of my mates is selling one for $200 bux and they are quite rare .. is this a worthy expense/upgrade or it doesnt really do much ?

**old_mr2** · 12-12-2013, 09:01 AM

If hooked up to a large radiator/heat exchanger, yes you will probably see an improvement.

**OnAll-FOUR** · 16-12-2013, 02:37 PM

St185 WTA are not too rare if you look around but $200 buck is pretty good. Don't underestimate all the bits and pieces you need to get it running. Make sure he is giving you the pump and radiator as well.

I found my ST205 one much better than the stock top mount air intercooler. p.s. I am selling my whole bolt in St205 setup as well

**TRDcelica90** · 16-12-2013, 02:56 PM

They are pretty good, and 200 is nothing.. Fmic would be best but it will be a lot more time consuming and costly.. Depends on your future mods?

I found it to be very responsive! Either way you have to get rid of your top mount ATA if you want to do some worthwhile mods

**aus jd 2703** · 16-12-2013, 04:49 PM

ata<185 WTA<205 WTA< FMIC, cost matches accordingly, knowing what I know now I wouldn't have spent the $200 on a water pump I would have put it to a fmic.
a lot of numbers get thrown around but I personally have seen intake airtemps on a 15'c night hit 60'c on first pull so im not convinced a 205 wta is worth the weight/money... that's my opinion but.
fyi im push 17psi/216awhp dyno proven

**OnAll-FOUR** · 18-12-2013, 11:25 AM

Also depends if you want to keep the factory look feel to make rego a bit easier

**st185-gt4** · 15-01-2014, 12:53 AM

Originally Posted by OnAll-FOUR

St185 WTA are not too rare if you look around but $200 buck is pretty good. Don't underestimate all the bits and pieces you need to get it running. Make sure he is giving you the pump and radiator as well.

I found my ST205 one much better than the stock top mount air intercooler. p.s. I am selling my whole bolt in St205 setup as well

OnAll-FOUR, how much you selling the whole bolt in kit ? Is there a lot involve to install it ?

**st185-gt4** · 15-01-2014, 12:55 AM

Originally Posted by aus jd 2703

ata<185 WTA<205 WTA< FMIC, cost matches accordingly, knowing what I know now I wouldn't have spent the $200 on a water pump I would have put it to a fmic.
a lot of numbers get thrown around but I personally have seen intake airtemps on a 15'c night hit 60'c on first pull so im not convinced a 205 wta is worth the weight/money... that's my opinion but.
fyi im push 17psi/216awhp dyno proven

yeah i was thinking the same .. personally i dont think its worth the investment and youre better off just putting a front mount in but i thought it would be worthwhile to keep it looking factory .

**st185-gt4** · 15-01-2014, 12:58 AM

Originally Posted by TRDcelica90

They are pretty good, and 200 is nothing.. Fmic would be best but it will be a lot more time consuming and costly.. Depends on your future mods?

I found it to be very responsive! Either way you have to get rid of your top mount ATA if you want to do some worthwhile mods

i think i'm most likely gonna go with the front mount.. but one thing i know for sure .. i gotta get rid of the factory ATA I/C.. i just dont think it does much and tends to get 'heatsoaked'.

**st185-gt4** · 15-01-2014, 01:00 AM

Originally Posted by old_mr2

If hooked up to a large radiator/heat exchanger, yes you will probably see an improvement.

i used to have a large aluminium radiator in the car but unfortunately it started to have a major leak so had to let it go and now back on running a normal radiator

**OnAll-FOUR** · 15-01-2014, 08:48 AM

Probably not what you want to hear but I was looking for $600. I boughit it all for $1000 when the St205 stuff was harder to find.

That includes:
- ST205 WTA, and St185 throttle body adaptor & silicone hose.
- St205 radiator and mounting brackets.
- ST205 Pump with mounting bracket from radiator overflow
- Flexilble lines to/from the WTA, radiator, and pump.
- i can throw in the relay to switch the pump as well if you like.

Cheers
Ben

**old_mr2** · 15-01-2014, 10:48 AM

Originally Posted by st185-gt4

i used to have a large aluminium radiator in the car but unfortunately it started to have a major leak so had to let it go and now back on running a normal radiator

Hi Mate,
The w2a heat exchanger is separate to the engine radiator.

This pic shows all the bits of a w2a system (intercooler, heat exchanger, pump and tubing)