I have also been looking quite heavily into Toyo set ups etc recently. I believe Forge FMIC is twinpass for AUQ rather than single pass. Airtec im not sure about but they're so very expensive that i have just researched universal set ups so far.
Regarding size, as that is what seems to be missing from pretty much every single thread ive researched, I found this useful piece of information:
"The size of the core you need depends on the application. For smaller turbos such as the k03s we don’t want too big of a core as you lose the low down punchiness that the small turbos are renowned for. It has been found that the Toyosports 550x225x63mm matches perfectly to the smaller sub 300bhp turbos flow and gives sufficient cooling of the charge air."
(source: https://18t-tuning.co.uk/intercoolers/)
Sadly this particular size of cooler is out of stock, and ive yet to recieve a reply from toyosports about restocking.
Points to note (im looking for information so please correct me where im wrong):
- Its to my understanding that for the AUQ we need 64mm/2.5" pipework.
- Some people have said that going for a tall cooler is pointless as its blocked by the bumper, which makes sense to have one take up below the crash bar rather sitting than behind it, but is that a sacrifice in performance just to avoid cutting the crash bar?
What i'd like to know is, what size is effective vs the biggest/smallest I can go without losing fogs and cutting the crash bar to sh*t? Is there any point in the ko3s models having one a FMIC take up that much space? So many questions lol.
