yes... extra fan reduces the heat exchange time ( i.e faster cooling rate) so when added together with a higher flow rate pump the faster flowing water would be colder than as per the design aspect..... Chuck ! I am still worried though.... some specialist must calculate Delta T in and out the engine or else you could be super cooling (on the highway) and over heating (in down town traffic) with potential demage to the cylinder block or the upper block due to larger Delta between expansion/contraction beyond design tolerances....because the Regulator valve will be open most of the Time looking for colder water!Chuck wrote:Hi Tamraz,
i was not clear about your question, thats why i was asking if you mean the better acceleration and so on. Of course, the performance is the reason to build up a stroker. But anyhow, to know the real achievement, the car has to be dyno tested.
In daily driving i think i will notice 70 or 80 extra HP very easily anyway.
About the high flow waterpump. I can use a stock one, but Dino told me once that also to use a high flow pump is not a mistake at all ( especially here in summer ).
Here is what he wrote me:
The standard water pump will do fine but if you want a high-flow pump,
you can get one from http://www.flowkooler.com (that's what I have).
I will also think about to put an extra fan , but it is not yet clear if i need or not.
Cheers
Conclusion: I would add the extra fan and keep the originally designed size of a pump. The result will be cooler water flow - yet with the OEM thermostat regulator valve still in place.. meaning that the regulator valve will open only when there is over heatiing, but if not the water goes back to secondary cycle and so on .... so instead of doing un-engineered changes based on 2 variables ( higher flow rate with less cooling power then add higher cooling fan with no proper inter -relationship, l would only do higher cooling rate by installing the extra fan... what do you think? why don't you consult with a real expert automotive engineer?