XXXSpro

A street tracker does…

Ya that would be ideal, but my guy is gonna be out for a few weeks this month and his work is always 3-4 weeks out We went with what he thought would be the next best thing based on his experience

1100G Current Complete Set Up Will Be Dynoing End Of The Month For Final Jetting/Tuning Working On A New Tracker Style Headlight Next

Haha I knew this was coming!

Ok so got some clarification on things for you on decking the block from my machinist, but first! Parts List: -Dot Head 1993 Katana 750 w/Dot on the head - GSX1100F Cams - 2001 Hayabusa Pistons - Decked Block .84mm - Cometic 0.03” Head Gasket Plan was the deck the block ( not head ) 1.2mm, but after a call with Joe, he said bring an old piston by and we’ll measure the height difference with a vernier caliper and deck accordingly. So he put a busa piston on one side of the pin and the stock on the other, pushed them together and measured the difference. The verdict… Busa pistons are 0.033” or .84mm shorter than stock. I’m assuming the 1.2mm number came from the shape of the piston. Also the valve reliefs on the busa pistons are deeper than stock by about .01” or .25mm, which he said should make clearance a non issue We decided to deck the block .84mm to match the stock piston height zeroing the deck height According to the calculator with the .03 head gasket I’ll be looking at 9.96:1 comp and 10.3:1 if I remove the center shim of the gasket. We also measured the top or the head to the face of the valve and there is .67mm Knowing this I’m considering skimming the head as there is more valve clearance area from the busa pistons and the above mentioned numbers from the head.

This is the info I was looking for, appreciate it a ton! I feel like understanding the process of what each change makes to an engine changes how you go about things. Previously I had only thought about more displacement + compression = mopowa i kept reading about gsxr cams being pesky and 1100F being all arounders Knowing this, I understand why people keep the stock ( intake? ) cam from the b12 for retaining low end. Do you have a build new or old? I know you put this knowledge to use haha

That makes a lot of sense, specially when you use the F1 example. I didn’t that of how that would come in to play with the bigger slugs or change in compression

Here ya go, idk if I can post links on here but you can take a read https://www.banditforum.co.uk/forum/index.php?topic=73284.0 ps. problem is there’s some people who post everything they did in detail and some people throw a couple pics up and loosely describe things. Some people just say that works or that doesn’t but don’t say why, then shyt people who just want info to make better decisions. So the amount of conflicting info is unbelievable At the end of the day a build is supposed to be fun and a forum is supposed to be about community. That’s why I ask around, DM, talk to my machinist ( he’s a busa builder ) and try to piece info together Whatever hurdles pop up I’m sure someone out there will help

Ya this bike is such an odd ball for how it made power compared to the other 1100s I think it’s most similar to the b12 but I think even those made power a bit higher in the revs

Damn, I didn’t think it’d get moved up the revs that much! Stock this thing hit peak torque at 5k and peak power at 7.5k

What kinda comp did you get with it on paper? I read busa slugs drop comp to 8:1/8.5:1, dot head is 1.5 comp increase and 1.2mm deck was around 1.5-2 points up based on that I was estimating 11.5-12 : 1

That’s quite a beast you got there! Any head work or Swap? This is my current project

This is with no decking at all? What was compression on this build?

I decked it by 1.2mm, I had read of a guy on the bandit forum who did it by 1.5mm to up compression. didn’t you do a build with busa pistons too?

Got it, thanks I know I’m still going to need to measure come pick up, just trying to have a good grasp on where to go next.