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Wed Dec 12, 2007 1:46 pm

hey guys i just ordered an oil accumulator form FOA and was wondering if any of you have had any experiance with that product from them. i know that a few of you have their shocks and are very pleased with them but havent heard of anybody running their accumulators. i have had morroso ones on cars in the past but i realy like the fact that FOA puts a electric solinoid on theirs instead of a manual valve. thanks for any input!! jack

Wed Dec 12, 2007 2:04 pm

I am going to go out on a limb and say you are talking about shock resi's?

If that is the case you are talking about emulsion shocks and basically you would take the piston out of the resi and it would be in the shock body and the nitrogen charge would be housed in the top of the shock instead of the resi.

You would have less oil in your shock and be more prone to shock fade compared to a resi shock.

I hope I am on the right track with what you are talking about?

Wed Dec 12, 2007 2:27 pm

shred625 wrote: I am going to go out on a limb and say you are talking about shock resi's?

If that is the case you are talking about emulsion shocks and basically you would take the piston out of the resi and it would be in the shock body and the nitrogen charge would be housed in the top of the shock instead of the resi.

You would have less oil in your shock and be more prone to shock fade compared to a resi shock.

I hope I am on the right track with what you are talking about?

no, actualy an oil accumulator is just like a shock resivour but it holds engine oil in it instead. when you start the engine it pressurizes a canister that holds a 1-3 qts depending on the size of accumulator that you get. once that canister is pressurized and say you are going through a set of high speed whoops and your oil pick up sucks air for a second, that accumulator will dump its contents into your oil lines so you have no drop in oil pressure. basicly a poor mans dry sump for short intervals. another cool thing is that when you shut your car off that accumulator holds your engines oil pressure in the canister, then when you turn your ignition back on the valve opens up and and you have oil pressure before you even start cranking the engine over. no more dry starts!! kinda cool. anyway, not what i was talking about but i appreciate the effort reguardless, thank you

Wed Dec 12, 2007 2:33 pm

Yeah I have 10 years experience as a aircraft hydraulics mechanic and thought that might be what you are talking about.

I had no idea FOA did anything like that. I am going to have to check into one of those on my 9 car if it is legal and I need the extra weight.

Wed Dec 12, 2007 2:54 pm

yea kinda cheap insurance for your car, plus it looks cool. hahaha and for only $165 bucks how can you go wrong! the only thing i was worried about is that they only hold 1qt. the small morroso ones are 1.5qts, oh well i guess ill just have to wait and see. :shock:

Wed Dec 12, 2007 3:01 pm

We've sold a ton of them lately to the circle track guys back east. Apparently they outlawed the drysumps in their class.
They work great. We actually started making them for our trophy truck quite some time ago to stabilize the power steering when you chopped the throttle in the turns.
Our new Class 1 car will get 3 of them.....for motor, trans, and power steering.

Wed Dec 12, 2007 4:54 pm

so the size should be ok for a water cooled 4cyl motor right? do you offer them in a lager capacity? thanks for the response chris

Thu Dec 13, 2007 11:09 am

twistingawrench wrote: so the size should be ok for a water cooled 4cyl motor right? do you offer them in a lager capacity? thanks for the response chris

Should be fine. We base them on our shock reservoir. The only way to make them larger is to make them longer. They're already pretty long. 18" I think.

Thu Dec 13, 2007 11:19 am

Thanks for posting about the accumulator. Last trip to Glamis twice I had a momentary loss of oil pressure bouncing through some whoops. I was looking at a EMPI oil sump but this addition would require modification of the cage to accomidate the thicker oil pan. This would accumulator would remedy the oil pressure loss with the option to locate it anyplace.

Thu Dec 13, 2007 12:24 pm

Patrick Tomlinson wrote: Thanks for posting about the accumulator. Last trip to Glamis twice I had a momentary loss of oil pressure bouncing through some whoops. I was looking at a EMPI oil sump but this addition would require modification of the cage to accomidate the thicker oil pan. This would accumulator would remedy the oil pressure loss with the option to locate it anyplace.

seriousy, for the price and ease of instalation (i just use 2.5" billet shock resivour mounts) the trade off is great. we used to run them on auto cross cars, because every once in a while in mid turn the oil pressure would drop. we installed the morosso ones and the problem was cured. but i realy like the idea of the electric solinoid set up the FOA is offering. thanks again for the post Chris!!! :D

Sat Dec 15, 2007 9:58 pm

could someone explain exactly where on a type 1 engine you plumb the accumulator. say for instance you have a full flow set up, with an oil filter,&aux oil cooler, where does it go? thanks.

Mon Dec 17, 2007 12:29 pm

2gr8dgs wrote: could someone explain exactly where on a type 1 engine you plumb the accumulator. say for instance you have a full flow set up, with an oil filter,&aux oil cooler, where does it go? thanks.

here is the instructions for the morroso accumulator. it shows a couple of ways to route it. hope it helps!

http://static.summitracing.com/global/images/instructions/23900_inst.pdf

Mon Dec 17, 2007 2:15 pm

I did aircraft hydraulics for 10 years and the best place to set that is closest to the motor on the return line. But is would basically work no matter were it was.

Mon Jan 14, 2008 4:48 pm

hey motochris. if you read this could you give me some tips on setting up the pressure on the accumulator. i have it all hooked up and after i run the engine and the shut the engine off, then open the accumulator solinoid i dont see the oil coming out of the cam oiler... any help is appreciated.. thanks, jack

Mon Jan 14, 2008 5:36 pm

PM'de ya.

Mon Jan 14, 2008 6:04 pm

thanks!!