coffmans sizzler questions

[brett]

i just found one for the sn., again. :woot:

anyone know what jetting i should run for a stock 61x?

anyone have a template i cna print out to open up the manifold?

cooling line setup? has an extra fittin on head pipe?

anyone know where i can find the part on the mani, where the chamber mounts to? its a metal star looking peice i think....

thanks for the help

 

[SharkB8]

I asked around for jetting info for my sizzler when I got it and have all my notes stored away somewhere with the installation instructions that should show their recommended cooling lines. I will take a look to see if I can find them.

 

[brett]

cool, id appreciate it

 

[SharkB8]

I haven't found it yet, but I did come across this thread..

http://mail.pwctoday.com/f64/protec-6m6-701-bore-carb-questions-62708.html

This guy's cylinder was ported, but interesting reading nonetheless..

 

[WaveDemon]

use factory pipe manifold gaskets as a template.

 

[brett]

isnt the water inlet on the wrong side?

 

[orangefinger]

pic for dual cooling, upper line restricted to 4mm

Jetting with single 44mm SBN

Coffmans Instructions

 

[brett]

what jets are you running?

 

[Mouthfulloflake]

thats not an extra cooling fitting, its a mounting point for the chamber.

I did drill an additional one on the bottom opposite the stock cooling fitting, but ended up running a plug in there ( wasnt needed)

here is a thread discussing the way I had mine jetted.

http://www.x-h2o.com/threads/36121&highlight=sizzler

basically 1.5ns, shiney spring ( stock 95g I think) and 120 lo, 140-145 high, it seemed to run about the same with either high speed size jet from 140-145, with some slight screw adjustment.

I ended up with very nearly the same setup on my B pipe as well.

the sizzler needs to have its water restricted, run a pisser off of the line cooling the stinger, and also run a restrictor in the stinger, the restricter really helped keep it cleared out, and made better throttle response.

 

[Ryan_G]

If you call Coffmans the nice lady will immediately fax you the installation instructions. They include jetting specs and water routing instructions. If i could find mine I would send them to you.

If you do not have a fax machine, you might be able to get her to mail them? Or just explain it over the phone.

If I remember right it said 2.0 N&S, 125 main, 65g spring, and 2 turns for each screw. This was for the 650. I'm not sure on the 701. The Watcon tuning tips helped me.

For the mount I just used a rubber bushing and some washers.

 

[accbr]

I posted a pic of the cooling setup that Coffmans faxed me in this thread. Put a T and restrictor in the stinger like mouthfulloflake said also. Start with his jetting for a 701. I think I ended up with 2.0n/s 145M 120L 95g.

http://www.x-h2o.com/threads/21639&highlight=coffman

 

[brett]

thanks alot for your help