hello firstly i no this should be in engine section but not a smany people view it and i no you guys no the answer

looking at a new engine

going to get a novarossi p5x as found a dealer on them veyr cheap and i used ot have a p5 and liked it.
buts whats the difference between the long stroke and standard perfromence/ runtime wise?


Long stroke: The long stroke of this engine, 16.80 mm with a bore of 16.26 mm
thanks adam

Ok, long stroke means the stroke is longer then the bore size. Kinda like a diesel engine, makes alot of tourqe then HP, but you sacrifice high RPM's. Runtime should be about the same.

so more tourgue so more acceleration then? low end power.
thanks adam

You tend to find the long strokers are slightly thirstier engines.

i read around 9 min runtimes in a review.

I read 9 min runtimes and 1 gallon life spans.

in other words u saying in order to get 9 mins would needa be leaned out and blow up lol.

Yup.

my friend raced my buggy this weekend and ran 8m minutes in a tank it was pretty much empty when he came in for fuel. i have it on my buggy and its a great engine

it's a great engine for a short tight track, the best I have got out of mine was 8 minutes 30. But that was with smooth driving on a relatively short track (not a lot of top end running, one short straight). on a wide open track you could expect a lot less runtime. on a wide track i have had it run about 7 minutes. if your a throttle masher, expect less.

na wmy track is relativly tight with jumps jumps and oen stright so really only looking for low end with good runtimes 7-8 mis sounds good to me as i wa sonyl getting 5-6 mins outa my old hyper 21 8 port which blew last race.

Horsepower is for show....torque wins races.

I would stay away from a long stroke engine. I would prefer an engine that has a bigger bore over the stroke lenth. It seems that engines with a bigger bore over stroke lenth last longer than engines with a longer stroke over bore.

I run the long stroke version and on a big outdoor track I am getting 10 minutes a tank and indoor small track I am getting 12 minutes . I run my engine at 250 degrees and have 3.5 gallons through it so far and has near the same pinch from when I broke it in . This is my second P5 Long Stroke and the first one lasted me 8 gallons with no problems at all .

my P5 lasted over a years solid racing no problems. i'd buy another one.

If you think the P5X is awesome, you should take a look the the Max Power M5B. It's a factory modified P5X with double the performance!

ok well im going to get the p5x found it for £140 new so i think its a good deal.

Where did you find a p5x for 140?

£137 about $270 just bought one of an ebay shop.

im curious about this mill too !

i just bought one of a fellow racer that has 3 gallons on it

pinch is still tight as heck! paid 75 bucks for it

That`s a pretty good deal !

LOL

Adz yer a man for the deals!!!!!
I spend a fair amount of time looking for deals but you my son take the bisuit!!
Well wear on the new mill I hear there a great engine!
Nick

lol yeah i just look in the right places and at the right times that rb enginge i got at 1 bit gallon old for £40 is going brilliant just thought i couldnt pass on this engine as well so ill use the rb for the winter series racing and if and when it blows or looses compression ill break in the novarossi but im deifnatly using the novarossi in summer series.