Engine combo advice

[Shee's Dirty]

Debating on a 4mil setup, starting from scratch basically. I do more trail riding than anything, but also like to drag. I don't want to make TOO much power to ride the trails with a hard powerband. What HP range should I try to be in, or what are my options?

 

Who is the cheapest package deal supplier for engine internals/pistons (complete 4 mil) etc. etc. Ebay the best source??

 

Thanks in advance!! :cool:

[fastbanshee8]

I found out that Ebay isn't the best choice. Try Fast Racing for your parts. Sounds like you need to go with a 4mil stock cylinder, instead of a cub. The stockers will be more trail friendly, and can still be used for dragging.

[rb0804]

theres a million builders out there, you gotta find the one that suits you. A +4 crank will give you more low end torque, a plus for riding the trails, but the banshee isn't really a trail bike. Your gonna have to hit your pipe, port, carb combo dead on because your going after two totally different extremes. Ones low end torque and the other is a top end screamer, somewhere you gonna have to compromise.

[Shee's Dirty]

theres a million builders out there, you gotta find the one that suits you. A +4 crank will give you more low end torque, a plus for riding the trails, but the banshee isn't really a trail bike. Your gonna have to hit your pipe, port, carb combo dead on because your going after two totally different extremes. Ones low end torque and the other is a top end screamer, somewhere you gonna have to compromise.

 

 

Yeah, that's my whole delima.

Old combo:

 

No-Toil Filter

Pro Flow filter mount

2 into 1 34mm PJ

Noss Reed Spacers

Boyeson power reeds

Bored .030 over

.030 Wiseco's

.010 milled head

Crank welded and trued

DMC Alien complete exhaust.

Dyna FS Ignition

Ricky Stator Stator

 

It made 51hp, it ran so so, looking for a lot more, but like I said, trails are my main territory.....What will a .30 over 4mil make on a dyno?

[Snopczynski]

Yeah, that's my whole delima.

Old combo:

 

No-Toil Filter

Pro Flow filter mount

2 into 1 34mm PJ

Noss Reed Spacers

Boyeson power reeds

Bored .030 over

.030 Wiseco's

.010 milled head

Crank welded and trued

DMC Alien complete exhaust.

Dyna FS Ignition

Ricky Stator Stator

 

It made 51hp, it ran so so, looking for a lot more, but like I said, trails are my main territory.....What will a .30 over 4mil make on a dyno?

 

You can get way more power out of it just by changing some of those parts out.

 

Ditch the 2 into 1, the reed spacers, the boyseen reeds, the stock head, and the dmc exhaust. Run twin 28mm flatslides, stock reed cages with carbon tech reeds, get a pro design head and run 175-185 psi compression, get some pro circuits, and have some port work done. Also run curve 3 on the dyna ignition for the best power gains across the board. I programmed 4 degrees of advance in my FS to curve 3, and set my timing plate to zero.

[Shee's Dirty]

What kinda power would that make? Wouldn't it be cheaper to buy the 4mil kit for $450, have cylinders bored, and a lil minor port work?

[Snopczynski]

What kinda power would that make? Wouldn't it be cheaper to buy the 4mil kit for $450, have cylinders bored, and a lil minor port work?

 

 

Once you do that, then you have a bunch of parts to bolt onto the 4 mill that are NOT low-mid power making parts. Not to mention the single carb will be holding it back about 4-5 hp on the top end.

[Shee's Dirty]

I have a dual carb setup too that came off a friends banshee. I could go either way. I'd just rather have known good new internals and cant see going back to stock really...Anyone have a proven 4mil combo I could just copy??

[Snopczynski]

I have a dual carb setup too that came off a friends banshee. I could go either way. I'd just rather have known good new internals and cant see going back to stock really...Anyone have a proven 4mil combo I could just copy??

I'm confused, how would you be going back to stock? I though the key here was too make a strong trail bike? So if you do the 4 mill, then what about these parts that are holding the bike back? I thought your little deal said you had wiseco pistons and a welded crank? How is that not having good internals?

[Shee's Dirty]

That was a previous combo, I no longer have that short block, I have all the external aftermarket parts, not the old motor itself, I sold it. I have a factory virgin engine I am looking to build. Sorry for the confusion. I appreciate all the help!