counterpart

20% castor is all I've used since I got my first 4 cycle OS FS60 in 1977. It's all I use today in all my glow engines. I'll watch for problems but I think they would have shown up by now. I do know I never have rusty bearings and my engines all run quite well.

blw

My Feedback: (3)

Just for the info of thread members- 'counterpart' was identified as really being Bruce Loughridge, who was banned several years ago. Needless to say, the account for 'counterpart' has been closed too.

antiquefer

Bruce banned? C'mon let him play too. You might learn something.

Kostas1

I use CoolPower 10%N-18% oil, fully synthetic.

On my Saito 120S...

[youtube]http://www.youtube.com/watch?v=ejTNK5kiaGQ&feature=player_embedded[/youtube]

mattress74

I am looking get my first four stroke glow engine. After reading all this I have some questions. Is it going to cost more to run a 4 stroke? I know the intital cost of the engine is more but after that is it going to cost me more money to run it as compared to a 2 stroke? Do they burn more fuel? I have read that the saito engines do like the 30% heli fuel and I know that will cost me big time. I am looking at buying a Saito FA-100 to put in a 60 size P-47D. After reading all this I assume that 30% is not required right? Is there going to be one brand of 4 stroke that is cheaper to run than the others?

Hobbsy

My Feedback: (102)

Matt, if you get the Saito 1.00 it will not burn as much fuel as the .61 two stroke. and Saitos are quite happy running on 10% nitro. Some will claim they need 30% but that's hogwash, they even run great on 0 nitro and 5% nitro. If you want to hide the exhaust in the P47 cowl talk to RCSpecialties about a TurboHeader for it and gain a couple of hundred rpm in the bargain.

mattress74

Thank you!

w8ye

My Feedback: (16)

You will find that the Saito 100 has a lot more torque than a 61 two stroke

Richard39

My Feedback: (14)

I have a new Perry Osc Pump and am not sure what you mean by the two bottom back plate screws... which way do you mount in reference to fuel flow... the only instructions I can find for the Perry is that it should be no more than 1 1/2 inches from the center line... Thanks...

daveopam

My Feedback: (9)

Mattress74, if you have not bought the 1.00 yet, look hard at the new Saito 1.15. It is a gem.

David

Hobbsy

My Feedback: (102)

The fuel flows out of the end with the volume adjusting screw, the wider end of the mounting plate bolts on to two of the engines backplate screw. In the case of a Saito it would be the bottom two backplate screws.

Richard39

My Feedback: (14)

Thanks for the reply... I was confused about the back plate.. now I understand... I will look but I do not see much room next the engine mount and the back of the engine and infront of the fire wall ... the engine is an Enya 60X... 2 stroke...

Richard39

My Feedback: (14)

Just looked at the engine.... no room to mount pump on back plate... I could mount it on the fire wall to the side of the engine...... and is it true that an airbleed engine will not work correctly with the Perry pump?

w8ye

My Feedback: (16)

With a airbleed carb you have to use the Bypass hookup where there is a tee at the carb with a fuel return line back to the tank. Look on the Perry pump site

NM2K

My Feedback: (14)

The folks claiming that Saito engines need 30% nitro are the folks selling the fuel with 30% nitro. (smile)


Ed Cregger

w8ye

My Feedback: (16)

The last two yrs I've dropped down to 10% from 15%. Didn't notice the difference. There is a difference but to change between seasons it is not so noticable.

Richard39

My Feedback: (14)

What do you think of the PowerMaster (or other) 10 / 22 glow fuel for Saito or O.S. 4 stroke.... I use the 10/22 in all of my two strokes... The 22% oil is 1/2 Castor and 1/2 Synthetic.. ( I believe)... too much oil?

Richard39

My Feedback: (14)

I can not get any on-line info from Perry/Conley on installing or using the pump..when I call ....I get an answering machine.. but after re-reading the post I believe that the pump is only for large 4 stoke engines which would have room to mount the pump using the back plate bottom two bolts... Is that true? pump not designed for smaller .60 size 2 stroke engines...? Thanks..

Hobbsy

My Feedback: (102)

Richard, it eazy peazy, just drill a new hole fit your situation.

Richard39

My Feedback: (14)

Received a nice call back from the Perry rep explaining how they would use the pump and locations... The main problem I had early was that I was looking to install on a 60 size two stroke with no room to mount on the back plate... I also plan to use a pump on a Saito 150 with proper room to install on back plate...

davidbarth

gee richard,
if you were on the phone with a Perry Rep. perhaps you could actually share some information you learned about the pumps with the rest of us??
Are they only for the big 4-strokes?
do they actually regualte as well as pump?
will they solve the "high-tank" gravity flooding problem on inverted engines?
is there an install diagram from perry?
These forums are intended to learn and share what we learn for the benefit of all.
my 2C

Hobbsy

My Feedback: (102)

David, here is much that you want to know, there is info all over this site, you just have to poke around to find it. One thing you won't find there is that the Perry pumps do not cure high tank fuel flow, fuel flows right through them.

http://perrypumps.com/prod02.htm


Instructions page for the various pumps and carbs:

http://perrypumps.com/instructions.htm

w8ye

My Feedback: (16)

There is no regulator on a Perry pump!

There is a spring pressure adjustor that enables you to adjust the overall pressure that the pump is able to produce

But there is no regulator that supplies fuel only on demand.

As hobbsy says there is no device to prevent a high head pressure from flowing right on through the pump like it wasn't there.

In most cases, the pump has to be plumbed in a pass through mode that gets fuel to the carb inlet but what is not used by the engine returns to the fuel tank.

davidbarth

very good info gentlemen and right to the point "my kinda guys"
the site is an awesome source (amidst the social drivel)
I've been all over the perry info and understand completely how and why the pump works.
I just can't find a good explanation of exactly what its supposed to achieve?

Is it more consistent supply (pressure) for wild maneuvers?
less chance of flame-out?
smoother transitions?
easier tunig?
smoother idle?
does it help an inverted engine?
and my #1 ??
What else can be done to prevent the high tank gravity flood issue?
Thanks
D

w8ye

My Feedback: (16)

The Perry will do a good job about getting fuel up to the carb.

The best pump/regulator is to take a Walbro carburettor and hook it up to crankcase pressure impulse's and then the regulator cavity to the glow carb fuel inlet. Then you have a true bump and demand regulator all ready made.

The details are on Pe's web site.

http://prme.nl/home/regulated_fuelsu...el_supply.html