rcuser567345

iTrader: (7)

I usually run it out of fuel maybe I should stop doing that

If I stop running and still have gas in the tank, if i'm gonna run the car the next day, I keep it in, but if I'm storing the car, I empty it and disconnect fuel lines...

Eivind E

I don't know if it's just my imagination, but it seems to me like the cheaper engines have softer cylinder linings or something else which I can't explain, they seem to wear out faster than the cylinder linings on the more expensive models, which seem to retain compression for about twice as many gallons as the cheaper ones.
That includes cheap v expensive within the same manufacturer, not saying it's always like that, but in some cases.

Herrsavage

I disagree.. My cheap LRP basher engines last 8-10 gallons no problem.. No rod or bearing changes, nothing.. I think people who spend big on engines want to feel that they will last longer.. Not true though IMO.. Lot of people paid big for Toro Neros for ex.... How an engine is treated is far more relevant to how long it will live than its price tag..

bigjayjay1

iTrader: (86)

Really are you saying every manufacture uses the same material make up between their pistons, rods and cranks.

Boinker

One thing that i do ti help increase lifetime of the engine is to run my first lap after start at a slow pace. This helps Alot.

bigjayjay1

iTrader: (86)

If your looking for longevity buy a COMP heater

houston

iTrader: (96)

Absolutely true

rcuser567345

iTrader: (7)

Maybe because most guys who buy basher/cheaper engines don't have enough experience in nitro to know not to let the engine run 300 degrees or how to tune right and maintain their vehicle well enough, so the engine's lifetime is much shorter. JMO

SLAYERDUDE

I think fuel and tuning can make any engine last for 10+ gallons.
The K5.9 in my Savage XL has seen more abuse than you can think of and it lasted 12+ gallons, rear bearing is loose during gallon #13 and never been pinched or had parts replaced.
I'm sure a couple bearings would get another gallon or 2 at least out of it, with the Byrons fuel it lived most of it's life with, IMO the OD Speed blend with low oil was it's demise.
My AE/TT .50/8.0 brg's took a crap at 4 gallons running the OD Speed blend too...

Dr. Evil

iTrader: (12)

OK. I have one for you.

I can't explain it. I don't know how it's possible.

I have a neighbor who's grandson I helped purchase a nitro buggy about 3 years ago. This buggy was raced 1 tiime. This engine was basically broken in according to a standard racers break in and not what the book states when you buy a ready to run. I told the kid to always put after run oil in it whenever he was done with it and to always keep the engine and air cleaner clean. Especially before he runs the car. (Clean air filter)

Today, the ready to run has about 12 gallons on the same engine. Then engine has been opened 1 time to replace I think the pull cord on it. That's all.

This buggy was driven into a cury by his cousin (go figure, his cousin did this
because his parents would not buy him one) Anyway... 12 gallons. Go figure..

Frank L

iTrader: (148)

I like to see 8 strong gallons out of a mill. Personally once they hit 8 I swap them out. Guess I'm a little under the 8.349 avg.

PERROTTO

iTrader: (5)

Based on my experiences with nova mills, I would expect every nova engine to last between 5-8 gallons before a p/s resize is needed. This is with the engine operating lean for max runtime and consistent power on Byron's 30/11 mix. And this is assuming the engine has received proper maintenance.

Crank should last twice what p/s/r does.

Davidka

iTrader: (86)

This is a myth. You can run the engine out of fuel at max rpm, when you open it up, everything is wet with oil unless you're running a 6% oil race only mix or something unconventional. You have to run all of the alcohol out of an engine to prevent storage rust.

PERROTTO

iTrader: (5)

Hmm, interesting. Pictured below is a crank that is 8gallons old. Not one spec of rust and it has never been cleaned. Never ran engine out of fuel prior to storage in climate controlled conditions. Just capped off nipple on carb, pipe, and stinger on pipe. Byron's 30/11. This crank has seen two storage times exceeding 3 weeks, both of which RB ARO was used at only those times. Storage conditions and fuel type are key.

Maximo

iTrader: (11)

i would not run a engine out of fuel at full RPM.... I have seen this damage glowplugs which led to engine damage.....