hondaPSi

been wondering about this... does an aftermarket oil cooler introduced to an eg civic oil system "delay" the flow of oil enough during startup to cause damage to the turbo?

I've always assumed that the cartridge isn't fully bathed in oil during cold starts (since the return line drains oil out to the pan), so some wear and tear will always occur at startup. but will an oil cooler add, say, an extra half-second delay to the cartridge getting oil? if this is so, wouldn't this delay significantly decrease the life of the turbo?

coneheadsracing

i would say not at all. My reason is how much does your turbo spin at idle? Mine really doesn't, so unless you are starting up the car and dumping the clutch, i think you'd be fine. I run an oil cooler, no issues for me.

IN VTEC

iTrader: (3)

That's why they make pre-oilers.

Boilermaker1

I'm not sure why it would "delay" the flow of oil any more than when you normally start the car and it takes 1/2 a second or so for oil pressure to build up.
All those lines for the most part stay flooded when you shut the car off, as soon as the pump starts and oil hits those lines, its going to start flowing through the entire loop again, the system does not need to fill those lines completely every time the car is started.
I've got an oil cooler installed, and I get oil pressure, for all intents and purposes, instantly upon turning the key.
That, combined with the fact that the engine isn't loaded so the turbo is probably just freewheeling, and there's residual oil left in there (its not like it drains and dries out), I highly doubt a cooler is going to cause a problem, it in fact helps, since you're not shooting hot oil through the turbo.

hondaPSi

thanks for the info, guys. really appreciate it

USDM 4G VTEC

it will not damage it

but if you are soo worried or paranoid, u can always get a Accusump