View Full Version : Ram's EA81
03-12-2005, 01:42 AM
Here is a pic from Ram performance showing dual port heads with their intake & Weber carb. The intake he is making for me will have the carb turned 90 degrees as per my request.
Ron at Ram told me this engine dyno'd at 137HP.
03-12-2005, 02:00 PM
Chris, have RAM got a website?
03-12-2005, 02:14 PM
yes Tim http://www.ramengines.com/ try this & let me know what you think
03-13-2005, 07:46 AM
Sweet! When are ya going to put it on?
03-13-2005, 01:45 PM
Hey Tim & Tim! My heads are done & paid for. He (Ron) is now making the intake for my 32/36 Weber, but I plan on going to the bigger 38,which will fit the same flange.
I will then send him the money for that & ask him to ship them. He will then start making another important part that I have been neglecting....The exhaust!
When my nosewheel is finished, I will be testing that & different sized rotorblades, The way the engine is now. When I am happy with my results & I have everything I need, I will bring it home & do the performance mods(hopefully in less than a week).
Then I hope to land only for refueling!
03-13-2005, 02:29 PM
Thanks for that site address Chris - very interesting.
If its not a rude question, how much did the heads cost and do you have to use their cam as well to realise that horse power?
03-14-2005, 02:04 AM
Well , The heads,with tradein(core), All done with valves & guides....$1350 US OUCH!
intake -$650 exhaust- not sure yet?
I didn't want to split my cases to change cam, so I told him what my Souza engine has in it & he said I will be fine. Even if I get a solid 120 HP & I gain confidence in the power abilities of this engine I may go further.....full blown EA81.
If I doubt it's capabilities, I will sell off the heads & return the engine to it's current config. Then try to sell the whole engine package & replace with an EJ22 or even an EJ25. That should do it.
But I truly hope this upgrade does it! I'll let you all know.
03-14-2005, 03:14 AM
Chris: Good luck on the new power. I bet you will be ecstatic with the kick in the pants difference.
A good example was last fall my rpm's were down by 200 on full throttle. I thought the engine tach was lying to me. It took a few flights to find the throttle wasnt opening up quite all the way. I quickly adjusted it and wow....I had become so used to less horsepower...I thought I had it supercharged after that.
Thats one reason I dont want to get the feel of an EJ22 that has a hotter cam and fuel injected. It would spoil me and then I would think I have a dog motor. So...for now....ignorance is bliss.....and I am going to keep enjoying them horses that I have. :D
See ya at Bensen days Chris.
03-14-2005, 07:18 AM
.....Ron at Ram told me this engine dyno'd at 137HP.Chris, at what rpm are they getting this horsepower? Are they going to be able to supply you with a HP/torque curve plot?
03-14-2005, 02:45 PM
Dean, all I can say is that I am desperate & that Ron at Ram sold me confidence. My fingers are crossed.
He had done the engine for the late Art close(hit wires). He said that Art was pushing close to 150HP & that his SxS Air Command had no problem with 2 heavy people.
I think that he cranks them up to 5600RPMs. I am hoping to stay at a max of 5400.
Don't jump yet until I give my full report. But wish me luck!
PS Art had the dual port SUB4 heads which I am told are no longer available.
03-14-2005, 04:41 PM
Chris, if this doesn't do it there is always Nitrous! Of course common sense tells me to make a engine last powering a aircraft you don't want to keep hotrodding and pushing it harder and harder till it makes twice the power it was designed to put out. But I Honestly do Wish you luck with it! :)
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