Yup itāll still be tight I imagineā¦ but Iām getting used to that. Plus I have a pair of newborn hands I can draft in now to help out
Iāve dropped you a PM, as Iām sure youāll read I think I need to just get back to RST and get over the past. Theyāre a very good local resource to have, and by avoiding them Iām limiting my options big time.
Charge cooler does not require a remap, my car had back to back tests for the first proalloy charge cooler, the gained some torque and a little bhp but not enough to trouble the gearbox, what you do gain however is consistent charge temps therefore sustained performance all the way through a session.
I would fit 2 pumps to the setup though as one did struggle. I think they now use a bigger single pump than I had though.
Cheers Ade, thatās good info. I had read about the early pumps being a bit naff - I understand theyāre using a bosch unit now but I donāt know the details. I assume itās a fairly common part that can be picked up if I feel like another should be added.
Did you fit one pump up front and one in the engine bay?
The back to back tests are good to know, I imagine a standard dyno setup lends itself quite well to proving the capability of a chargecooler - as the standard A2A intercooler just canāt get any airflow from a static position (and even on the road it struggles as this thread testifies!). Iām not hunting for BHP here, but after spending some time logging this summer and seeing just how influential ambient temps can be on the OEM setup, Iām sort of hooked now on finding the optimal solution!
I used a pull pump and a push pump either side of the charge cooler in the engine bay, mine was using bosch pumps albeit a smaller version than some Iāve seen. This I think gave me the best of both worlds, performance and some resilience.
Thanks again ade. It does seem like Pro-Alloy are constantly tweaking the kit so it has evolved over time. Iāve read a few reports about leaking heat exchangers too so hopefully theyāre on top of that!
The second pump certainly increased the flow rate in the system, I have no test results showing any real world improvements, but flow rate in charge coolers are important and the length of pipework and capacity of the system suggests that 2 or a bigger pump are really required.
Redundancy is the only reason I would consider it. I did some research and I concluded that flowing more water will not always yield better cooling rates. Obviously if your flowing 1l/min its not going to be optimalā¦