530 conversion?

[yeti]

This winter I'm doing a few things to the busa to do a little better on the drag strip. My dad has a '69 camaro and runs in the low 6's in the eighth and so far the best I've ran is a 6.7 @ 109 (1.7 60ft) with a full muzzy system, pcIII, and K & N air filter. Well...I want to beat him pretty bad as he gives me crap for not being able to yet. My plans are as follows:
gearing= 16/42
stretching somewhere in the neighborhood of 4" to 6"
strapping the front
lowering the rear 1"
pair block off
small air box mod

My question is should I go with a 530 conversion when I order my new sprockets...I'm pretty new with all of this stuff and need your help!!! Thanks for any and all advice!

 

[Don Hardcastle]

I think you mean 520 conversion. Stock is 530. Some ppl will tell you yes, some will tell you no. Personally I am leaving mine at 530 after my 1397 package this winter.

Don

 

[yeti]

Thanks...next question: What type of chain and how many links should I get to be able to stretch 6" with a 16/42 setup?

 

[Mike.P175]

You might want to get a 4-6 adjustable swingarm. I have heard 4in.
hooks up better than the 6in.

 

[yeti]

I am..I just want a chain with enough links so that I can try 6" if I want.

 

[nxvette01]

I can tell you that after I stretched mine 6 the stock tire would do no good. I now have a u soft Shinko it works pretty well.

 

[nxvette01]

AS for as the links question goes if I remember right 132 links on a 530 chain should be long enough for the 6in stretch. But it maybe 136 links. Either way you'll probably have to buy a 140 link chain. When I bought my EK zzz I got 150 links you just have to cut it to fit.

 

[rubber2burn]

For the chains I would go with the EK ZZZ or a Tsubaki Sigma both are high tensile strenth chains. As for links I don't know what it would be for a streched swingarm

 

[yamahor]

I'm thinking when GMbusa did his to 6 over he was using 130 links... But I'd say 140 to be safe.

 

[Professor]

+1 on the ZZZ. I think it goes from 120 to 150 links when you buy one anyhow. The used to be the case anyhow.

 

[SANDFLEA85]

depending on the chain some only come 150..i got a chrome zzz and just had to cut it,your gonna have to cut it anyway and the price difference isnt much,just go with the 150 and cut to size,this way you cant go wrong

and btw...-1 is nothing,slam that pig to -3.there is a big difference.i used to be at -3 but am now at -1 because of my weight 280lbs,i burned a hole in my undertail from bottoming out on the street

 

[yeti]

Well I thought about lowering it -3 but I'm 6'6" 230 pounds so I figured it wouldn't be too good of an idea...

 

[Professor]

Well I thought about lowering it -3 but I'm 6'6" 230 pounds so I figured it wouldn't be too good of an idea...

With adjustable rear links and a strap, you can change it from 1" front and rear to 2" front 2-3" rear in about 15 minutes to go to the track. Believe me ever 1/2" makes a difference at the track. You still want to keep 3" of ground clearance and stiffen up the compression on the forks to prevent damage from an excessive wheelie. You also want to get yourself down lower on the bike at the track if possible. You can loose an inch in the seat. At 6'6"￾ you may have issues getting your feet on the pegs doing so however"¦

 

[Busa505]

ok i guess i missed it but why would u go to a 520 chain from a 530 ??

 

[psychoticide]

ok i guess i missed it but why would u go to a 520 chain from a 530 ??

Lighter...less rotational mass.

But I do have a question. Are many people breaking the 520's? I was told by a local shop to not do that conversion on a Busa as it produces too much power... Anything thoughts?

 

[Professor]

ok i guess i missed it but why would u go to a  520  chain from a 530  ??

Lighter...less rotational mass.

But I do have a question.  Are many people breaking the 520's?  I was told by a local shop to not do that conversion on a Busa as it produces too much power...   Anything thoughts?

I could see it holding up WITH the RIGHT components and SUFFICIENT maintenance and including the willingness to REPLACE the components at accelerated intervals. Typically you see these using in road racing environments. I wouldn't chance it with drag racing in mind. A 520 chain is has only ¼"￾ inch of area bearing holding the force vs 3/8"￾ on 530. 50% more wear area on a 530 for 12% higher weight.

A busa is already tasking most 530 chains requiring a good quality chain to get decent life out of them. I don't feel it is worth it for the average joe to make the conversion.

On the other hand a 42t aluminum rear sprocket will reduce the weight by 1.7lbs over the same 42t in a rear with only a slight increase in service life of the sprocket.

 

[psychoticide]

Thanks for the info, very good to know. I will have to look into the aluminum rear when I do the sprocket/chain replace this spring.

 

[SANDFLEA85]

I dont know about you but i'd prefer the chain to be the weakest link,you dont want a "heavy duty" chain, IMO if something needs to give i'd rather it be the chain then something in the motor and or "trans" (gears)...just my opinion.

 

[Professor]

I dont know about you  but i'd prefer the chain to be the weakest link,you dont want a "heavy duty" chain, IMO if something needs to give i'd rather it be the chain then something in the motor and or "trans" (gears)...just my opinion.

Except that when the chain usually goes quite often a nice chunk of the cases go with it. Breaking a chain a speed can be an experience of a lifetime as well.

I prefer my weakest link to be the traction between the tire and pavement.

 

[SANDFLEA85]

I dont know about you  but i'd prefer the chain to be the weakest link,you dont want a "heavy duty" chain, IMO if something needs to give i'd rather it be the chain then something in the motor and or "trans" (gears)...just my opinion.

Except that when the chain usually goes quite often a nice chunk of the cases go with it. Breaking a chain a speed can be an experience of a lifetime as well.

I prefer my weakest link to be the traction between the tire and pavement.  

ok,you got me there

haha