[bandit dot head]

well its just about back together ill keep u posted if parts come apart the carbs well mine sit almost 1 inch higher in the rear 

[bandit dot head]

Also I done this mode because I like the way the port is  haven't flowed the head but it looks a lot better than the bandit head

[bandit dot head]

14 hours ago, dupersunc said:

If you guys are looking at running Dot heads and 81mm Wisecos, check your compression ratios. I think they'll be very high. 

 

It's one thing running a drag bike like the OP's running 120 octane at 13.5:1. Quite another thing on a road bike though.

 

you bet race fuel all the way  more like 13: 1  and I'm running  under a min a pass in total  compared to the street... I don't think I would do this mod for a road bike but everyone has a choice  but if you make the wrong choice look at the 3rd pic

[bandit dot head]

7 hours ago, Ted M said:

@vmaxCould I ask you the make of your pistons. I have just had my B12 bored out to 1216 and I'm using Wiseco pistons and planning on using a DOT head with them.

Wiseco is what I have  106 in and 109 ex degree .... Has 70 thou clearance 15 degree btdc  intake cam from dot head    ex has 90 thou clearance but had to use bandit cam lower profile... ive tried running tighter clearance but for drag racing if u miss a shift booooooooooom in my case  If I was to do over I would mill deeper pockets in piston for the valves or if u want to go cheaper double up cylinder base gasket everthing ive read on the net is the dot head and cams will bolt straight on a bandit with 1216 pistons I just did not like the clearances

[bandit dot head]

got the clearance I wanted had to dump the gsxr 750 ex cam once I installed the bandit ex cam I have a little more wiggle room thanks again for the info..... In my mind lol bolting a dot head straight on a bandit with 1216 pistons theres things to consider  not just a straight swap  I also do believe the longer valves is the main issue  thanks guys

[bandit dot head]

3 hours ago, Gixer1460 said:

I've always tried to maintain minimum 1mm piston to head squish clearance ie. 0.255". If you are chasing max power you could squeeze that to 0.8mm.

For valves, due to the chance of valve float, I try to keep 2mm or 0.050" and change.

Anyone quoting 80 - 100 thou is loosing power but very safe...............racing isn't about safe LOL!

got lots of room for the piston going in the head chamber  but only 0.050 piston to valve around 15 deg btdc ex valve I already did the bandit head in valve looks like the letter s   and your right racing isn't about safe but it gets expensive lol I'm a proud owner of 12 oil cooled motors thanks again lol

[bandit dot head]

just might go a bit smaller on lift with cam to gain a bit of clearance I believe the longer valve may be the issue (never thought of that) thanks for all the replys  its all helpful the 80 to 100 is safe and 40 to 50 gives more power lol but when the piston touches the valve it makes no difference u have no power thanks again

[bandit dot head]

Hi Guys ...New to the group but come here often to read posts I drag race a bandit well its sorta a bandit. Im installing a dot head on 1216 piston when I dial my cams in  (750 cams slotted bandit sprockets) Ive only got about .040 to .050 thou piston to valve clearance on ex at 15 to 20 degrees before top dead center everything ive known  recommends 80 to 100 thou clearance . I could mill the piston pocket I suppose but I keep reading this mod can be done . I'm also running 40 mm lectrons msd ignition  lock up clutch stuff like that degree  105 106 thanks in advance any help would be great I have to be missing something