Best mods to make from standard

[hpemk1]

I've just bought some toomey t5s for my completley stock banshee , what engine mods should I go for next I don't want to spend fortunes and I want it to be reliable still, I want to do a couple mods as parts are hard to find in England so I will proble have to get them shipped over from The states.

[Lowflyin]

Adjustable timing plate , cool head<br /><br /><br />Sent from my iPhone Sixteen-teen

[Finch]

Welded crank before timing and cool head is a good idea.

[trickedcarbine]

Do a search on all the different tranny stuff guys are doing. It makes a banshee motor a total different beast.

 

Do it in phases. First do almost any bolt on you can afford. Pipes, carbs, head, intake, timing plate, shifting/tranny mods, suspension, etc. Just remember that a stock motor making decent power won't stay together forever.

 

Phase 2: once the motor pops, it could be a season or could be a few seasons. Just depends on the current motor. So at this point most guys get all pissed but you can use it as an excuse to really make the motor really bitchin. You will already have the supporting mods so why not. Tear it down, replace every seal, port the cylinders and get custom domes, cut the tranny, weld the crank or have a good welded stroker put in.

[hpemk1]

What does a cool head do , raise the compretion? What do you have to weld the crank for? Also what are the tranny mods?

[trickedcarbine]

The cool head actually only lowers operating temp marginally, but it's best benefit is it's ability to allow easily swapped domes( cumbustion chamber).swapping domes changes compression as well as a few other factors. There are a lot of different builders who can make you a dome for any set up that will perform better then any shelf dome from pro design ever will.

 

Welding the crank pins keeps the lobes from coming out of phase. Compression makes motors responsive and makes that torque feeling, but it is mean to parts and usually it's the crank that tells you it's unhappy.

 

Tranny mods are for getting the bike to shift smooth and consistant. It's the difference between shifting an ol dodge compared to a Ferrari. There are little bolt on things like a shift shaft, shift star, detent arm, detent arm spring that can be tweaked to make the bike shift better. But the real benefit is when the cases get split and the trans clusters them selves are machined. There is a clutch less drag racing style or a much improved trail/Duner style of cut and both make for an incredible improvement.

[Finch]

Do a search on all the different tranny stuff guys are doing. It makes a banshee motor a total different beast.

 

Do it in phases. First do almost any bolt on you can afford. Pipes, carbs, head, intake, timing plate, shifting/tranny mods, suspension, etc. Just remember that a stock motor making decent power won't stay together forever.

 

Phase 2: once the motor pops, it could be a season or could be a few seasons. Just depends on the current motor. So at this point most guys get all pissed but you can use it as an excuse to really make the motor really bitchin. You will already have the supporting mods so why not. Tear it down, replace every seal, port the cylinders and get custom domes, cut the tranny, weld the crank or have a good welded stroker put in.

Why wait to weld the crank? odds of it failing with mods is high and usually when they pop then your replacing cyls, cases, crank, pistons, domes. Doesnt ever make since to me why guys wait or say wait till it pops then do it. So it ends up costing you 2-3x more then just doing it right the first time!

[trickedcarbine]

I suppose that's how I would do mine, but most guys here aren't experienced enough to tackle that project right away or don't have all the dough at once

[gusto]

Who does the trans work? Are there many shops who will know the benefits of these tranny upgrades or just the premier banshee builders?

 

Is this the same as back cutting gears?

[hpemk1]

So isit the woodruff key that has to be welded? Can this be done with the engine in the bike? I'm guessing if it lets go then the timing advances to much and the engine melts? Also what reads shall I go for, do they make much difference and is a boost bottle a good idea , I never get what it does?

Edited December 29, 2013 by hpemk1

[Finch]

no ya weld on the lobes of the crank have to split the cases. vf3-4s are good boost bottle in junk!

[trickedcarbine]

Mostly banshee builders doing the machine work on the tranny. If it were me I'd choose either of the Cams for the job. (Cam @ redline or Cam @ CamATV)

[RagunCajun]

With a clymer manual, it makes splitting the cases pretty easy. If ever you take the cylinders off and/or split the cases, you need to do a leak down test. No exceptions. An air leak can cause lots of head aches and at worst, hurt your motor. I think there's a sticky on here on how to build a leakdown tester yourself.

 

I would strongly consider getting the cylinders ported at the same time you get the crank welded/trued. Ship once and do it all at once. Or you can do a 4mil crank at the same time but that isnt needed. Porting the cylinders offers way more power/fun over a stroker crank.

[Pasi S.]

Hpemk, you have alot of good RD350ypvs tuners near you(in england). "They" will know who can weld your crank and mod your tranny, if you want to do it "locally".

 

What fuel you use?

[M16NTE]

Hpemk1, where abouts in England are you? With a user name like that you need an old escort with a harris lump in it?

 

Ive just bought a banshee myself, just fitted my fmf fatty on there an she rips. Next on my list is making it road legal.

 

Cheers gary