How much fuel should I run threw my p5 before it's ready. I ran two tanks threw it and then It started raining. It ran smooth at 220 to 230 during that time. Just wondering how many tanks before ready to race for all you novarossi guys Thank you.
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Engine Break In period
- Thread starter ldhuntvw
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Buggyracer28
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I would break it in for about 7-8 tanks cuz Novarossi's don't come cheap and you don't want to ruin it. I have a Novarossi BS21SB in my X-terminator and i broke it in for about 7 tanks.
EDIT: took out the false info... my bad.
EDIT: took out the false info... my bad.
Last edited:
CorradoPsi
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220-230 is fine for breakin. just dont beat on the engine and you will be fine. remember slow trigger movements, no more than 1/4 throttle for the first few tanks, then half throttle, 3/4, and then short periods of full throttle after about 6 tanks of fuel. return the piston to BDC on every cool down. after that you can turn for power, expect the engine to run a little on the hot side (250-260ish) for the next gallon or 2. after that, the engine will "magically" richen up and rev higher, novarossi's are famous for it, its just the breakin period being over and the engine is in its sweet spot, lean it out again at that point and it will rip.
why shouldn't you go over 200?
my understanding is that you are not breaking in anything until it gets to 200.....
not trying to be a beotch, but from what I've read from Parris (one of the guys that design them) is the sleeve doesn't really expand enough to completely break the engine in until it's just over 200...then you want to gradually increase the temps about 5 deg every 1/4 tank after letting it cool down w/ the piston at BDC......
my understanding is that you are not breaking in anything until it gets to 200.....
not trying to be a beotch, but from what I've read from Parris (one of the guys that design them) is the sleeve doesn't really expand enough to completely break the engine in until it's just over 200...then you want to gradually increase the temps about 5 deg every 1/4 tank after letting it cool down w/ the piston at BDC......
Buggyracer28
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o.... well i just followed what my friend told me. He is a really good racer (not pro) and i trust his teqniques... I wasn't trying to be a biotch either, thats just what I thought.
Not coming down on you...I just happened to read that stuff last week after I blew my 2nd mill in 2 weeks...figure I'd better understand what's ahppening before I lose my ass....
I just fired up the P5 for it's 1st tank-o-fuel. It was a little tricky at 1st because I'm still getting used to the starterbox(I got the one w/ the big motor and a dry-cell battery). It fired right up and idled beautifuly. It was very responsive even though it was dumping a ton of raw fuel. I raised the idle up and down very gradualy via my trim, then let it idle and occassionaly lightly blipped the throttle to clear it out. This all took place the starterbox, so I never was able to get her above 165-170. Burned up all the remaining fuel, added sevreal drops of AR oil and let her sit @ BDC. I'll do some gradual driving tomorrow for about 3-4 tanks before I begin to lean, ever so slowly.
This motor should really have a lot of balls.
This motor should really have a lot of balls.
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You need to lean it out. No break in works correctly at that temp. The whole purpose of a proper break in is to 'mate' the piston and sleeve to each other with heat cycling.Sgt Blamo said:
it has more than I care to have man.....the big shot at mills runs that in his prospec and it is unreal...clears that big triple w/ ease...
Buggyracer28
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As they say... "you get what you pay for" and Novarossi's are definitally one of the best engine companies in the buisness, so yeah, they rock. I did a power slide on the street with my NR and I floored it. The engine had so much torque it ripped the tires off the rims! It was crazy.Sgt Blamo said:
mikeburgin
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What do you think of the bs21sb, am thinking of getting one since my 2 new rbs have both swollowed dirt, and the new liner-piston are going to cost the same as a os vspec, seen the bs21sb on rc-mushroom the other day for cheap, are they as good as the v-specBuggyracer28 said:
you need the temp to get at least to 200 other wise you're not letting the sleeve expand enough to mate the piston's shape/motion to it......under 200 during break in and you are actually doing damage to your P/S.........try it on the stand and raise the idle from your radio until it raises the temp to just above 200...run 1/4 tank then stop it...bring the Piston to BDC and let it cool down......do this for the first 2 tanks and you'll be close to what the big guy says to break it in......the more I read about the Engine stand method the more I like it...If I'm going to stay w/ the hobby this time I will definately make one for breaking in engines......
maybe not doing damage but ou are just wasting fuel and when you think you are finished w/ the breakin and start wailing on it....then you'll be doing damage....
I can't seem to get it above 180 on the stand w/ out leaning it a whole lot. I'm very hesitant to lean it out much at this point. I'll lean it out on the next tank and drive it slowly, leaning it until it hits 200, 4th tank 210-215, 5th tank 215-220, then I'll start to run it a little harder and tune it some.
Buggyracer28
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I'm not sure if its better than a V-spec cuz I've never raced against anyone with that engine. My friend (he drives a K3 with a BS21SB) kicks everyones butts with it. He said he races people with all kinds of engines.... P5, RB, V-spec, etc. He came in first place in a MAJOR tournament at his track. IMO the only thing that can come of the bs21sb is good (unless you abuse it). I highly recommend it.mikeburgin said:
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Sorry I'm late, here, but Plaidfish and Sgt Blamo covered it correctly.
Slacker!!!!!
CorradoPsi
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the BS21SB is a short to medium track motor Mike. good low end, smooth power delivery. it tends to like a 053 pipe with short header and nova #5 or #6 plug on 30%. a good buddy of mine runs one and likes it a lot, it just doesn't have the punch that a P5 or 421B have.
