moparmadman40 Posted November 17, 2013 Report Share Posted November 17, 2013 cut an old set of stock stroke 23cc domes to clear a 4 mil stroker setup and it ran the squish band width up to about 60% i'm gonna give them a shot and see how it goes. but does anyone have any actual experience with the effects of a higher or lower squish band on the banshee that could share their knowledge. i've heard that some people shoot for 45% ish or 10-11 mm width. and i've heard that a small squish is more efficient at higher rpm's while a wider squish band will give more low end torque. Quote Link to comment Share on other sites More sharing options...
quadgod211 Posted November 17, 2013 Report Share Posted November 17, 2013 My first cub had a band at 65 it lowered compression and aloud me to run above normal timming with out problems but I eventually found out I had got wrong base gasket I was running +10 on plate and a dyna box giving a lil more timming on race alky with out problems but I would get it right the motor will be alot happier Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted November 17, 2013 Report Share Posted November 17, 2013 My first cub had a band at 65 it lowered compression and aloud me to run above normal timming with out problems but I eventually found out I had got wrong base gasket I was running +10 on plate and a dyna box giving a lil more timming on race alky with out problems but I would get it right the motor will be alot happier He's asking about the width of the squish band in relation to the bore size..not the clearance. Quote Link to comment Share on other sites More sharing options...
m671054 Posted November 17, 2013 Report Share Posted November 17, 2013 Im sure your aware that they are not 23cc anymore. you should calc your compression ratio and make sure your where you want to be. might need to open up the bowl if compression is to high. I shoot for 30-38% right now and it seems good for me. drag motor though.your right a narrower band pulls better on top in my experience. Quote Link to comment Share on other sites More sharing options...
quadgod211 Posted November 19, 2013 Report Share Posted November 19, 2013 He's asking about the width of the squish band in relation to the bore size..not the clearance. oh okay sorry bout that..lol Quote Link to comment Share on other sites More sharing options...
camatv Posted November 19, 2013 Report Share Posted November 19, 2013 might check plug clearance also.... over 10mm wide is just asking for problems. 8-9.5 works great.. other factors affect a lot also. Quote Link to comment Share on other sites More sharing options...
moparmadman40 Posted November 19, 2013 Author Report Share Posted November 19, 2013 well i got them with a chariot head that i bought off e-bay. cut them for 0.045 squish, it brought the chamber down to about 19.5 cc's which is just about perfect other than the band being 60%. ported stock cylinders for the 4-mil to 130/198. with all that it kicked out to 145 psi on a fresh build no break-in at 3500 ft i think. So i'll have to buy new domes if i want a narrower band (if i do that it'll be 18cc and race gas), which is why i am going to run them and see. But like i said, i'm just wondering if someone has run both wide and narrow bands and what the actual differences, pro's, con's and possible problems are. Quote Link to comment Share on other sites More sharing options...
registered user Posted November 19, 2013 Report Share Posted November 19, 2013 i assume your intention was drag racing ? it doesnt make much sense to have a big gap above the piston . not that your .045 value wont work but i think youll have better luck alittle smaller. 50% area is a good number. theres a few other things to consider but the good part is blank domes are usually to be pretty cheap. and if you have the machine to do the cutting youll have no problem figuring out a nice combination in a short time Quote Link to comment Share on other sites More sharing options...
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