Why would almost every pro driver run a 9901/41021 or 2096/41021 pipeset on nearly EVERY nova engine made

Fyi , i have turned a few "PRO" drivers onto 9853/41005 setup and every one was like " why was i running the other pipe on my truck?"

This does happen sometimes when replacing engine bearings. I would venture to guess the pressure applied to seat the rear bearing might've pressed the front bearing in just a tad. No worries, install a 7x9mm washer or shim behind your flywheel collet. Try Ofna 10099 clutch shim kit http://www.absolutehobbyz.com/produc...roducts_id=852

Thats because the 9853 is not EFRA/IFMAR leagal. It has not been for many many MANY years. That is why the PRO drives does not use it.... Outside the US anyway .-)

delete

yes tried installing 1 then 2 shims behind the collet.

same thing seems the outer part of the crank is rubbing the outer race of the bearing.

i tried installing the o.s xzb crank to check this and tightened up clutch nut real tight and it was loose and spins free.

looking for a fix on this engine. ( i dont recall checking this when original bearing installed so i am unsure)

Oh...my bad, I finally re-read your post. That's a very strange issue. Is the friction there when you have the backplate off? If you haven't checked, remove the back plate, install nova crank, install/tighten flywheel then spin the flywheel to see if resistance is there. If no resistance then your crank is not fully seating into the rear main bearing and the friction is from the backplate.

there is no contest Monty.... your pipe choices are why you and others think this engine is soft on the bottom end....... 2084/41005 was horrendous dude, you recommend this to people and its no wonder they all come back saying the engine is soft down low.....

Here we go again...


Personally the 9886 never worked for me on any track condition... Never used the 9853... But I only ran the 9901 on those engines and they work great for me...

The whole thing with pipe set choices and soft bottom ends etc is that this is something every driver has a different opinion on and basically you have two types of attitudes

You can have many a 7 port set up with a 9901/21 and many drivers will find this has a very strong bottom end, perfect mid range and a screaming top.. all whilst returning excellent run times. This is usually what more matured pro type drivers will want who know that too much power hurts their lap times

Then you get what i am going to call "the other type of racer" who wants an engine that just fries all the tires as soon as he touches the throttle, Some people like this and they may not care what their run times are like or how the wheelspin more often than not has adverse affects on there lap times, These guys wont be happy with a 2096 or a 9901 and 41021 manifolds, they are generally the newer type racers that just want to grab a handful of throttle regardless of anything else

There is no real right or wrong but there are two mind sets and i think that is what is been debated here

I have seen it time over where some of the best drivers we have in Australia honestly don't know what to do with all the power they have with a 9901/41021, yet you can have some one else with exactly the same set up saying "its soft on bottom"

People can only do/use what they feel best suits their needs

Its all learning and or personal preference







Dave,
FUSION X ENGINES AUSTRALIA

yes it was without the backplate .

i managed to rid of the friction though when i tighten up the werks flywheel it isnt as free spinning.

i need to tighten up the nut real tight so the flywheel doesnt slip.

when i spin the flywheel it only spins once like a 360 turn and if i turn it with my hand it feels better then before mnore (loose)

though it doesnt spin free like a clutchbell does. is that normal?

its from the flywhell nut tightening up pulling the crank pressure on the inner of the bearing which is pressure on the balls from the inner of bearing being pressure pulled . lol is this normal?

stop the malarky already ! this is not how it is !

what is your own personal experience with a Bonito and a 9886/41001 combo ? have you personally run this combo back to back against the combo Monty always tells people ? have you tried a 41005 manifold vs a 41001 Manifold on this engine using all the different Nova pipes ? Have you even run a Bonito yourself ? or are you commenting based off what you think you know ( which many here love to do )................

everyone always says how the Bonito is soft and mild down low, yet everyone is always running the same pipe as all the other sheep are running who also say the engine is soft down low.....

I can tell you once you use a 41001/9886 you won't be saying a Bonito is lacking bottom end...We run on an extremely high bite surface and we need all the bottom end grunt possible and no other pipe/manifold combo gives the Bonito its full bottom end power...with this pipe we can run a lower clutch stall then any other pipe, the powerband is linear and full across the entire RPM range...With Monty;'s suggested combos the engine lacks both bottom and top...He used to recommend the 2084/41005 and when I ran it i thought it was a joke, the engine was so neutered it was nearly unusable on our track surface, bottom end was flat, dead and nearly non existent, top end was reduced over 6 MPH over the 9886, and this is only on a 160' straight....

Anyways there is a reason why most say the Bonito lacks bottom, and a reason why we all choose run the Bonito because of its above average bottom end power.....pipe and manifold selection makes or breaks this engine..if you want to flatten the power and lose bottom end listen to Monty..if you want to have strong bottom and run a lower clutch stall then listen to me !

I apologize in advance for any dirt this may stir up -- but I know there has been alot of movement in the U.S. market in the past couple years, so looking for the latest:

Who is the official U.S. Distributor for Novarossi? Saw a press release that Nova USA is coming with O'Donnell at the helm...is this reality, or something that is coming in the "future"? What about the guy in AL that has Rex/Top -- does he also have the Nova line? Looking for a single source with the deepest inventory.

Thanks!

You made your point Neal, many times on this thread.

Most tracks in the US don't have the grip of yours or 160' straightaways. I've tried your combo on a tuned Bonito and stock Keep-Off XLS...the truggy was undriveable, the powerband was simply retarded. Oh sure, it had bottom, top, mid, upper, lower, and everywhere in between power. I re-clutched and while it helped the power was too much for the surface even when the moisture/grip came up. If I was drag racing or on a very, very high grip track treated with sugar or such , then maybe but otherwise such a pipe/header combo would be a waste of money. I'm not the only one, there have been others in my region who tried and went back to the recommended 9901/021 setup. Is is ideal? Maybe/maybe not...but it works very well for me and my driving style which is fast but not overly aggressive.

Be nice...humility is your friend.

I doubt anybody races on surfaces as slick as ours Scott, lol.

Hey their Rob...nice to hear from you. Last we spoke you were struggling a bit with your health. Was thinking about you over the holidays, gosh I hope you're doing better these days. Sure miss racing with you, we always have a blast.

Well said...slick indeed. And to think we should all have electric smooth trigger fingers by now, right?