Yes, heat has been oppressive throughout our testing. But we have deliberately smashed this car and turbo setup through harsh Aussie conditions and not focussed on optimising dyno figures at this stage.
There is no doubt that the next round of fettling will unleash some of the potential in the 3584rs but certainly nowhere near its maximum. Finding its upper limits with consistency will require a built motor, very strong drive-line and a plethora of supporting mods, all of which are super expensive done right. I would think 600rwkw or close would be achievable with the right set-up.
The 0.83 housing makes the 84rs drivable and the 1.01 is just an unpleasant dog on the street. I'm sure the 1.01 would ultimately make more power in the top end but not worth the light switch power delivery IMHO. Unfortunately I cooked the 1.01 CHRA before we could get proper numbers but we had restrictions anyway so it was moot.
If I were satisfied with mid to high 400s (probably will be as I will only run 98 on my built motor - not e85) I would swap out the turbo to a 3582r or even smaller for much faster spool and a crazy fast street car with relentless top end.
BEV isn't my daily driver so I don't mind the time taken to get a refined, stealth result. We have learned, tested and developed lots of performance bit along the way. So, fun!
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135i - RHD Bottom Mount Single Turbo - GTX3584RS
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