I have been reading some discussions on the oil cooling system this morning and have come up with an idea that I think could be a solid improvment.... Maybe. First of all my understanding of the oil cooling system is rather minimal, Im not sure what the parameters are that I need to stay inside. I havnt even taken off my beehive yet, so forgive me if I am completely off with this idea, but hey thats why I posted it....

I went out and started looking at my 84GS, and noticed I have some spare pullys since deleting the air pump and air conditioning systems... What if I were to fab up a bracket that would hold a power steering pump (or is there a more appropriate belt-driven pump that would work in this case? ) that bolts where the AC unit used to go. If I were to make adapters so I could hook oil lines up to the pump, and hook it up to the system so its basic function is that of a water pump or even an aftermarket high-volume oil pump... to circulate the fluids through the system more efficiently and take stress off the oil pump inside the motor. I could even attempt to employ a dual oil cooler system, and maybe with some electric fans just for good measure.

The issues I have thought of are that maybe this would increase the pressure of the oil system too much and blow out o-rings or damage something inside the motor, but that could be resolved with a pressure regulater in theory. Another problem could be that it works too well and actually keeps the oil temperature too low, is there a minimum oil temperature? or is it a case where the cooler the better.

I realize that many of you have found what you believe are the optimum setups for our RX-7's but I have always believed that everything can be improved on. I dont plan on building this to be a 10k revving racecar motor, but function is beauty in my eyes. Ive read the discussions about bigger/better/different oil coolers but I havnt heard anything about actually introducing a secondary pump to the system. Is this a stupid idea or is it actually a possible improvment? It makes sense to me as long as the oil pressure is regulated. What do you think?
As an afterthought, If this is actually a feasable idea, what if I were to port all the oil galleys as much as common sense allows to make full use of the extra oil flow?
I get weird ideas like this and need smart people to tell me why Im wrong.

 

If you were to attempt this, I would keep it out of the internal oil pressure loop. To many issures to resolve. If, however, you were to set up the pump such that it drew and returned the oil via the oilpan only, and controlled the temp with a thermostat, you may have a viable option.

 

i ur wanting to increase the ability to COOL the oil, why the idea of changing the way the engine is lubricated from a system KNOWN to work? just replace the beehive cooler with the other type, then add a fan to that. those that make aluminum radiators should be able to recreate the factory oil cooler, then maybe make it another 1/2 size bigger.

 

What's wrong with the stock FMOC?

 

I think you guys are missing his point. Hes not saying anything is wrong with traditional systems, hes just wants to know if what hes describing would work as an improvement, and if it is even possible.

 

^^ exactly I dont think Manntis even read my thread.
I like your idea trochoid, if I were to make it a somewhat secondary system that circulated oil from the pan, through a cooler with a fan, and right back into the other side of the pan it wouldnt affect internal pressure would it? And if it were a closed system like this do you even think a thermostat would necessary? I think this is entirely possible, and could help alot with removing excess heat that these rotarys generate.

 

probably would add another quart or two to the capacity to keep the level in the pan adequate.

 

I read it - and asked in reply what was wrong with the stock FMOC? As in, what gains do you hope to achieve by doing it your way instead?

 

LoL hes like my brother of ideas.

Kinda reinventing the square wheel as someone said to me.

Extensive testing would have to be done to the original beehive to see whether or not the oil temp is actually too high during operations to see if you would need to add what your system there. But if you were to add a pump, all you would be doing is losing 5 hp to a pump thats not creating any. In other words useless because you could just swap over to an actual oil cooler. That would save alot mess and some hp.