Are you saying this: Novarossi 41005 Long Off Road Manifold [NVR41005] Lemme know...I need bottom end on this track. Short run ups, not a lot of need for top end.

41001

Finally found a pipe to make my modded P5XLT/Beat B5 kick axx... - a Mielke 2041 Turbo.. I like this engine now.

+ YouTube Video

The Novarossi 41001 Medium Off Road Manifold [NVR41001]

description says: "This manifold is a good compromise between the long and short manifolds"

I need bottom on my Truggy/Bonito, I wanna keep the 9853 pipe.

Just wanna know if the NVR41005 - Novarossi 41005 Long Off Road Manifold

OR the

NVR41020 - Novarossi 41020 Long Smooth Flow Off Road Manifold is the best combo...

9886/41001 or 41019 are by far the most dynamic and punchy combo I have run on Nova engines. When I put the 41021 with the 9886 it killed the total performance.

we just put one of those pipes on my modified RB BXR and it was awesome !!! seriously woke the engine up........... The BXR has very high crank timing and it didn't seem to wake up on any other pipe, even the 2058 was only mediocre, but one we put the 2041 onto it it became an animal .....just night and day difference from any of the other pipes we ran............... So this has me wondering if the person who did your P5 added a bunch of crank timing....As that could make very picky on tuned pipe................... Also another oddball pipe combo that works with over timed cranks is the 2035 on a 41001 .....

2041 was also an extreamly good pipe on the old V-spec :-)

Re: my bottom end punch issue once the motor came up to race temp. I ended up finding it was the .4-.35mm idle gap on the purple mizer, this all equaling a very lean lsn. It's now 1/8 of a turn larger than .5mm and my BTT WC is back to its former self.
All this brings me to the the question of "how do you determine the correct idle gap?" A on-road racer explained a method of pinching the fuel tube while the engine is at idle and counting to 4 from memory, what's other ways?

Thanks
Michael

Still is, on all OS engines afaik..

pretty much what you did is how you tell.....generally speaking I set the idle gap to 0.5 mm as a baseline.......I then tune the HSN and then I tune LSN...and as I am dialing in those needles I will make adjustments to the idle gap if it is needed..........The key is you can't establish your needle settings based off your idle gap.....but rather your idle gap should be based around your needle settings.....`By the sounds of it you had a too lean LSN and your engine was going lean once it was heat soaked.....Typically you should have had some audible cues that you were too lean, but sometimes they can be hard to pickup when other cars are running......

Hey guys

I have a fusion x7 and it's a awesome engine
Just wondering if the keep off is the same
I need to purchase another engine and novas are easier to source
In Australia

Cheers guys

They are not the same engine.

I'm bout to order a new nova for my buggy but can't decide between the btt wc or the keep off 4. Can u guys tell me what the difference between them and y should I get one or the other.

Sorry if this question has been ask before.

I have a P5 with JP3 pipe and I'm only getting 7 minutes a tank. It's tuned well and I took it easy on the throttle and leaned it out a little more. It pulls in around 230 degrees. It doesn't sound to be too fat. 6.5 mizer Any ideas?

7 min is badddddd , would just about bet your lsn is much richer than it should be

some tracks , weather conditions , layouts , dirt types and throttle control have a very dramatic effect on overall runtime