Andyyy's 1.9 DT 205 Cherry Red VNT

[powerandtorque]

You need to keep the standard cooler as it helps with warm up time and heat balance ec...Ruan explained it all once

On a 306 maybe, but on a 205 when the cooling system is already pretty marginal with a TD engine (especially if it's not running the expensive thicker core TD rad!) it's not exactly ideal using a heat exchanger to dump more heat into the cooling system.

Yes, ideally you'd have a heat exchanger to help bring the oil up to temperature quicker and to stabilise temperatures, but not at the expense of reaching the limit of the cooling system with an engine that's so sensitive to cooling issues.

Not only that, but on a 205 the clearance between the 306 style heat exchanger and radiator isn't great and you normally have to run a short Renault oil filter to give a decent amount of clearance - if you tried adding a take off plate for an oil cooler as well then I don't think you'd manage to fit the oil filter on! Remember the 205 engine bay is considerably shorter at the front than a 306, hence needing to tilt the radiator forward when running GTi-6 engines etc.

Personally, I'd remove the heat exchanger and if you think oil temperature will be an issue then fit a thermostatically controlled oil cooler (which that take off plate doesn't appear to be) to keep the oil temperature sensible without over-cooling or excessively prolonging warm-up time.