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Rb26 Single Turbo Upgrade

BezerkR32
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discopotato03 Grand Master

discopotato03

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Posted

Blown away . Sorry but why would anyone want any cold start compensation at much over 45 - 50 deg coolant temp if that ? The last engine/ECU , and a MAP one at that , I tuned with reasonably crude AFR measuring devices needed none over 40 deg coolant temp . I don't see a problem with 68 deg thermostats other than getting a little heat into the lube oil and any decent synthetic oil will have a quite respectable cool pouring index anyway .

I am no tuning expert but getting the timing right was critical to how my engines behaved at no/light loads right across the coolant / inlet air temp ranges .

Turbo wise I REALLY hope we dont take on the American practise of calling compressors by their inducer (inlet) diameter ie TO4R wheel being "66 or 67" . Its really confusing because a small diametre big trim wheel can have a similar inducer size to a small trim large diametre wheel . The TO4R wheel is ~ 84mm 63 trim and 66. something mm inducer . If Garrett were to produce it (highly unlikely) it would be called GT3584R . It sort of fits between the GT3582R and the TO4Z (BB TO4R/P Trim) but built on the GT3582R's GT25BB centre section rather that the big shaft BB centre section from the TO4Z/GT4088R/T51R/GT4294/02R etc .

My rant for today , cheers A .

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