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Before a Rebuild

More good info from Sicivicdude.  He posted this in a thread and I am just sharing it with everyone here.......
Alright, the same advice I would give anyone before they start ANY build (go-kart to jet airplane!).
 
Determine your ultimate power goals and most likely use before buying anything or doing any mods.  If you are going to be trail riding, your build is going to be vastly different than if you are going to be hillshooting.  Some "go fast" parts are good "investments" power to money wise.  Others are VERY poor investments power to money wise.
 
Good investments include porting, head mods, pipes, (sometimes) carburetors, aftermarket air filters, good clutch kits, and good tires.
 
Bad investments include "go fast" parts that aren't really go fast as much as they are bling fast.  Examples would be billet aluminum intake manifolds, aftermarket reed blocks, hi flow water pump impellers (the stock impeller flows PLENTY for all but the highest end drag bikes), and generally other chrome and polished goodies.  I'm not saying that chrome and polished goodies don't have their place.  Only that if you're trying to squeeze the most bang for the buck, chrome and polished goodies can be left off the tab without hurting your power and performance.
 
If you're building a stock stroke stock bore banshee you plan on just RIDING instead of racing.  Forget the 2 into 1 manifold, forget the PWK carburetor/s, forget the VF3/4's (unless you get a set CHEAP second hand), coolhead and domes, and hi flow impeller.
 
The high output coil is optional.  If you're staying gasoline on a trail bike, you can keep your eyes open for someone selling a PVL or nology dual outlet 1.6 ohm coil but the stock one also works quite well for that application.
 
Stick with the stock carburetors.  As surf said, two VM26's can handle a lot of engine before they HAVE to be changed.  Get a pair of boyesen dual stage reeds for the stock reed cages.  You won't be pulling more air through the stock reed cages than they can handle, anyway! 
 
Forget the cool head and 22cc domes.  That's basically a stock head combustion chamber wise and you're going to be running a trail bike, the head isn't going to overheat anyway.  If you want to bump up the compression some, you can just get a stock head cut and save about half the cost of the coolhead.
 
The hi flow water pump impeller is hiding a secret.... they don't actually take away any more heat than a stock one.  The heat generated by the engine is all that will need to removed anyway.  The stock cooling system can handle WAY more heat than the engine is going to generate at a normal tune level.  What "hi flow" impellers actually are is a slightly tweaked design that makes them less likely to cavitate at higher rpm's.  On a drag bike, the engine is going to operate at an EXTREMELY high rpm for a short period of time.  In that same period of time it's going to generate an enormous amount of heat that will need to be dealt with.  The stock impeller is designed to be efficient at a maximum rpm much lower than the operational rpm of a dragbike.  The stock impeller would cavitate (create tiny air bubbles and air lock) at the rpm the engines operate at so they use a "hi flow"  impeller that is designed to operate at those high rpm's without air locking.

Re: Before a Rebuild

Reply #1
Awww what does he know!   ;D    Great advice for sure. 
 
[move] SCD-FWIW
 
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Re: Before a Rebuild

Reply #3
cmon hes Mr copy and paste lol..jk...it is great advice and a "must read"for newbs thinking they know what to do.... im defently glad to have him here

Re: Before a Rebuild

Reply #4
Guys a hack, don't listen to him.   :P
 
Good advice to anyone pondering any aftermarket modifications including a full rebuild.  Always keep perspective on the end game...
Click on the pic VVVV You know you want to....


Re: Before a Rebuild

Reply #5
Guys a hack, don't listen to him.   :P
 
Good advice to anyone pondering any aftermarket modifications including a full rebuild.  Always keep perspective on the end game...

 
Could of saved me a grand I'm sure On my first build, did alot of unnecessary "non HP" gaining "looks" which didn't last a season.  :-[
 
 

Re: Before a Rebuild

Reply #6
cmon hes Mr copy and paste lol..jk...it is great advice and a "must read"for newbs thinking they know what to do.... im defently glad to have him here


Hahaha, I remember that whole "its all just copied and pasted" Bullshit lol. Awk was trying to convince me that it was, so I ran a bunch of sicivic's write ups through one of the plagiarism detectors through my school... Guess what? "No traces found"




Re: Before a Rebuild

Reply #7
I'll add my $.02     "cool head" is just a name or term. A little research will show that they improve little if any to Banshee cooling. Stock carbs are good for 60-65 hp or 30-32 (or so) on Blaster. Ported stock cages with dual stage reeds are good enough for moderate builds. Totally agree with the idea of most bang for the buck.
 
Wonder where Hillbilly copied/ pasted that from ??? :-X

Re: Before a Rebuild

Reply #8

Hahaha, I remember that whole "its all just copied and pasted" Bullshit lol. Awk was trying to convince me that it was, so I ran a bunch of sicivic's write ups through one of the plagiarism detectors through my school... Guess what? "No traces found"

While some of the information I use as evidence is found in other places, I promise that all of my rambling incoherent write-ups are all typed by me.   8)
Click on the pic VVVV You know you want to....


Re: Before a Rebuild

Reply #9
When I copy and paste something, I make it known and give credit to the original writer, that's why I post it as a quote  8)

Re: Before a Rebuild

Reply #10
[quote author=Larry's Shee link=topic=390.msg4263#msg4263 date=1361553900]
I'll add my $.02   "cool head" is just a name or term. A little research will show that they improve little if any to Banshee cooling. Stock carbs are good for 60-65 hp or 30-32 (or so) on Blaster. Ported stock cages with dual stage reeds are good enough for moderate builds. Totally agree with the idea of most bang for the buck.
 
Wonder where Hillbilly copied/ pasted that from ??? :-X
[/quote]
 
Cool heads are "COOL" looking!