getzy3

Will a savge 21 run off of 10% nitro??

Travis21

Run 20%

new72Savage

i had to buy 16% b/c didnt have anything else. I think lower nitro makes the savage harder to start. lhs said lot of people switch to 16% this time of year here in AZ b/c its so hot in summer. I would stick with 20% if u live in a temprate climate.

badboy2

My Feedback: (13)

which nitro has more lubricant blue thunder 20% or odonnell20%

badboy2

My Feedback: (13)

new72savage how much did u buy your hitec servo ?where?

bigbadbowtie

odonnell race has 14% lube.......
Blue Stuff has 10% lube in both the race and sport formula.
race has 7% castor/3% synth sport has 7% synth 3% castor

look here http://www.twf8.ws/new/tech/fuel.html

Unstable

I run wildcat eliminator 20% my savage seems to like it alot.
It appears to get more power out of wildcat then out of blue thunder. but I dont have any solid numbers to back it up.

bigbadbowtie

unstable.....

Im kind of thinking that with fuel that has more oil content you get a better piston to wall seal.....that makes a little better compression...... making more HP.

Im allways told by peole that running so much oil hurts performance but I have yet to see that in the fuel I am running.

sig champion.....25% nitro....has 20% oil.... (10%castor 10% synth).

It runs Just as good as the 30% nitro I tried that only had 12% oil.

I could be WAY off base.

Justintoxicated

does castor leave deposits in RC cars like it does in 2 sroke ATV's?

Won't different amounts of oil also affect the engin, On ym ATV it affects Jettng the carb's but there ae no Jets on an RC engin.

I have heard 2 things when it comes to ATV and adding more oil.

1) I hear it Can raise compression if you put in more oil
2) I It Can run too rich (oil/gas ratio) not (fuel/Air)

Also I learned that Octaine rtatings will affect timing, More octane = less combustion and longer burn time. This canhelp your engin stay cooler. However I also learned that using more Octaine than needed WILL reduce horsepower depending how you set your timing. RC is a different world, but im wondering if these thigns still apply in deciding between the right fuel.

If your car (non RC) runs on 87 then it will make most HP using 87, although it may run cooler with 91 or 89.

SO does any of this stuff still apply to 2stroke RC cars?

Oh yea and using too little octaine will cause pre-ignition which is definately abad thing.

Unstable

100% castor does leave residue look at almsot any airplane engine. some people dont like it but the truth is a fine layer of castor resin will acually help seal an engine and protect against lean runs.

too much though and it can build up enough to interfere with the piston/sleave seal.

also castor has a higher burn temp so if it does go lean it stays liquid longer then synthetics. so a syth/castor blend is probably the best on both worlds.

a: protection from leaning out. (castor)
b: more lubrication (synth)
c: less residue (synth keeps the castor from sticking that much)

besides wildcat uses real pure castor (klotz brand) and I find that the fumes dont bother my eyes like others do.

Justintoxicated

Cool lots of people use Klotz for ATV's also, it seems to be ok. I also hear synthetic oil does not work as well in humid weather (it protects less) but i use formulated synthetic blend in mine. However I hear it is not a good Idea to MIX different kinds of oils together, and that after you decide what you want to run,you should always stick with it.

offroadnut

just pruchased a case of fox fuel(4 gallons) they mixed it the way I wanted it,20% nitro, 9% castor, 9% synthetic,62% methanol. This stuff is really fresh, had to richen up our savages , really smokes alot and has great power. I only paid $86.00 for the whole case. But I live near Fort Smith ,Arkansas where they have their manufacturing business. ( didnt have to pay shipping)HEHE

bigbadbowtie

Sig Fuel also use Klotz castor and Synth. Works great!

new72Savage

Pad $49 at LHS. Check servocity i think they had it for $39. the lhs was just more convenient for me, seeing how my truck wasnt moving til i replaced it.

all it all for $50 its pretty good servo. Seems like it should be stronger given its rated torque, and its relatively slow, and mine doest return to exact center when there is weight on the tires. But it works, i dont race and the metal gears have certainly far out lived the little bit of abuse that took out the stock servo.

I located the 545 in the airplane section. The only comparable servo they had in the truck section, which he tried to up sell me on, was $139 WHOA...say how much?!? Yeah my thoughts exactly. For $139 the tires better not only turn sitting still on carpet but the B*TCH better go into hover mode for a verticle take off...LMAO

dainjarouz

just to clear it up. odonnell 20% fuels have 18% oil content. dont mean to be nit picky though.

bigbadbowtie

dainjarouz

Do you have somthing to back that Info up? Where did you find this out?

I can believe their RTR Fuel may have 18%. I don't believe their
Race fuel has 18%.

Ledgendary

Note that it does not say that it has 18% oil but, rather the equivalent of 18% oil!

This is O'Donnell Racing Fuel from DuraTrax.
This is a one quart bottle of 20% nitromethane glow fuel.

FEATURES: Specially formulated fuel blend for competition radio controlled,
glow powered cars and trucks.
O'Donnel Racing fuel contains an advanced lubricant package which
provides engine protection equivalent to that of conventional
lubricants that have an 18% lubricant content. This optimizes
performance and maximizes engine life.
Endorsed by Picco and Nova Rossi Micromotori Engines.

Ledgendary

If you want to add oil to your fuel just put some of this in it! So, I guess you could buy which ever fuel is the cheapest with say 20% nitro and you could add enough oil to make it 18% oil content! I have not ried this yet but, I am going to give it a shot!

http://www2.towerhobbies.com/cgi-bin...?&I=LXS622&P=0

bigbadbowtie

If you look at the link I posted up above it states that Odonnell has 14% oil. That chart was up before RTR fuel was available. Im pretty sure they are refering to the race fuel odonnell has.

I have used Klots techniplate in the past and it works well.
Adding oil will dalute(spelling) the % of nitro in your fuel. It might not make that much difference but it will decrease some.

If you want to know the specifics on adding oil or blending your own stuff..... check out this link http://www.nitrorc.com and look about 1/2 way down the page....to the link called Custom Fuel Blending Workshop... It will tell you exactly how much to add to get the desired amount.


ray

Ledgendary

They have tons of great tips! The fuel that I was refering to was "O'Donnell Racing Fuel from DuraTrax" and this is also what they state for all the other O'Donnell fuels at Tower. Red Alert said the same thing.

dainjarouz

i was curious how much oil it had, so i emailed them. they said it has 18% oil. email them and find out for yourself. maybe they gave me wrong info because i thought that race should have less than 18% oil as well....

you should try it though, email them, well see what their answer is....