PDA

View Full Version : upgraded radiators?



LightningVic
11-09-2004, 12:55 PM
Does anyone know if there is an upgraded radiator available for our cars? I imagine with the cooling problems our cars have, this combined with an upgraded radiator would help greatly. Especially those of us with electric water pumps. Supposedly under extended cruising conditions, the mezerie doesnt flow enough to keep the car where it should be temperaturewise.

RF Overlord
11-09-2004, 01:30 PM
Supposedly under extended cruising conditions, the mezerie doesnt flow enough to keep the car where it should be temperaturewise.

Vic, where did you hear this? I'm still considering installing one, and this could be important as the Bunny Lady frequently drives fairly long distance for work...

TAF
11-09-2004, 01:34 PM
Does anyone know if there is an upgraded radiator available for our cars?Yep...Griffin www.griffinrad.com (http://www.griffinrad.com) makes a radiator for our cars (Buddy Griffin drives a Marauder). Call Dennis, I hooked him up with my contact at Griffin and he (Dennis) can get you one. :up:


I imagine with the cooling problems our cars have, this combined with an upgraded radiator would help greatly. Especially those of us with electric water pumps. Supposedly under extended cruising conditions, the mezerie doesnt flow enough to keep the car where it should be temperaturewise.I don't particularly agree with this^^^ but, look to my answer to your question above and call Dennis.

LightningVic
11-09-2004, 01:39 PM
I was looking at the stats for the mezerie pump, and the mezerie outflows the stock pump up to 2500 rpms, but after that the mechanical pump takes over. I believe its rated at like 55g or lph or something like that. I read about it in sean hyland's modular book.

BillyGman
11-09-2004, 01:52 PM
I was looking at the stats for the mezerie pump, and the mezerie outflows the stock pump up to 2500 rpms, but after that the mechanical pump takes over. I believe its rated at like 55g or lph or something like that. I read about it in sean hyland's modular book.Even if that's true, you should keep in mind that having a greater rate of coolant flow isn't neccessarily better. Even though there's obviously such a thing as an inadequate flow rate which would ofcourse be detrimental, there is a point in flow rate at which once you surpase that point, you don't acheive any greater cooling efficiency. So the goal is having an adequate flow rate, and not neccessarily the highest or fastest rate. I've read articles about engine cooling which suggest that it IS possible to have a flowrate that is too much or too fast, and that having too much can actually REDUCE the cooling effect on the engine. One article in particular stated that this is true particularly w/some high volume mechanical waterpumps. It stated that some high output mechanical water pumps flow so much volume during low RPM's that at high RPM's the flowrate they create is so fast that the coolant/water mixture passes through the engine too quick to fully absorb the heat from the metal surfaces.

So my point here is simply that just because the electric waterpump in question is said to flow a lesser amount of volume at higher RPM's does NOT neccessarily mean that it's less efficient at cooling the engine. So i think that the one possible advantage of electric waterpumps is that they provide the engine w/a constant and consitent rate of coolant flow regardless of engine RPM, unlike mechanical waterpumps that cause the coolant flowrate to vary substancially dpending on engine RPM's. Whether or not an electric waterpump is actually needed in the Marauder specifically, I don't know.

SergntMac
11-09-2004, 02:03 PM
I have the OEM radiator with the head cooling kit from Reinhart installed and a 180 degree stat. Prior to the install, I ran a consistent 185-187 degrees on long drives, data collected from the EEC by a Davis CarChip EX. After install, my average temp dropped to 180-185 on the same long drive. I am pleased with the head cooling mod's performance and I see no cooling system problems, nor a reason to upgrade my radiator.

I respect the rationale behind the electric water pump, it does free up more power, and for the 350 bucks or so, the bang for the buck is very reasonable. However, if it's going to curtail my long term highway crusing unless I further upgrade the cooling system, the whole bang for the buck equasion has to be recomputed. X RWHP for 350 bucks is one thing, that same X for 650 bucks is quite another.

BTW, I've heard no first hand accounts of this cooling system complication, and if you're just speculating on what someone wrote in a book, that doesn't make it a real time problem.

First hand experience anyone?

Zack
11-09-2004, 04:20 PM
On a recent 3 1/2 hour trip with the Meziere installed (and the cruise set at 100 for extended periods) the temp gauge never moved once.
This was at roughly 3500rpm's.
Nothing to worry about

FordNut
11-09-2004, 05:19 PM
I drove to Indy and back with the Meziere and had nary a problem. Spend lots of time on the highway for 3-4 hours at a time, no problems. I do have the rear cylinder cooling mod, too. Never had any kind of cooling problems whatsoever, so not sure what is meant by the opening statement to this thread. But as Todd said, there is a radiator available, Dennis had one on display at Indy, not sure if anybody at all (except maybe Griffin) is using one yet.

martyo
11-09-2004, 08:34 PM
Not sure if anybody at all (except maybe Griffin) is using one yet.


I hope to be soon.....