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Post by Kristjan on May 1, 2014 17:47:44 GMT
First of all I apologize for not using the preferred way of cooling the engine, but since I haven't got anything else, I have to build this. It started as a 750 wp, the engine is now from a 1100 ws as well as rear shock and rear wheel. Engine has ported and skimmed head with +1mm stainless valves on both sides and pistons from an oil cooled 1127, which increases displacement. It all started when I broke my fist and wasnt able to do anything in the end of 2013. My standard 1100ws ended up in pieces and in january 2014 I bought a 750 from a friend. Today I got this far:   |
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Post by nitro on May 2, 2014 15:37:24 GMT
Have no proplems with the smaller valve pockets of the 1127 pistons?
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Post by Kristjan on May 3, 2014 11:20:55 GMT
These are milled bigger, but I havent had the time to check and put the engine together, so I'd say I don't know yet!
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Post by Kristjan on May 6, 2014 16:46:45 GMT
I'd like to have someone's opinion on compression ratio before I go on.
I planned to pump it up to 13:1 and it's almost there without a base gasket - turns out to be 12.9:1'ish. I have 2 choices of pump gas, 95 and 98 octane. I'm pretty sure it'll run fine with 98 with correct tuning, does someone have a different opinion?
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Post by captain chaos on May 6, 2014 18:33:52 GMT
I'd like to have someone's opinion on compression ratio before I go on. I planned to pump it up to 13:1 and it's almost there without a base gasket - turns out to be 12.9:1'ish. I have 2 choices of pump gas, 95 and 98 octane. I'm pretty sure it'll run fine with 98 with correct tuning, does someone have a different opinion? 98 octane is not for sale anymore in Lithuania, Estonia might follow in the near future. |
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Post by Kristjan on May 8, 2014 14:42:59 GMT
Haven't heard about anything like that yet, but good to know.
This weekend I want to end up somewhere with the engine. I have to figure out what's the best way to bypass stock oil cooler as I'm using 750 watercooled oil cooler instead (it's compact and perhaps a bit lighter). Cable clutch conversion may need some tweaking and I have to make valve pockets even bigger than they already are. Have a set of cam gears to slot, match the inlet rubbers to the head and much else. Will try hard to take some pics of the progress cause I never got used to doing it, but people like to watch photographs.
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cj
Velociraptor
Posts: 27 
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Post by cj on May 15, 2014 8:33:17 GMT
Nice project bud ime going to be doing smthing similaire but with an oil boiler lump
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Post by Kristjan on May 15, 2014 13:58:29 GMT
I have realised that this is just a cheap rebuild here to get it moving for SMASH. After that I can calm down and take care of things and "remove the bugs" without being in a hurry. Anyway, tomorrow's friday, I got a scale and now I can weigh the pistons and measure everything up finally and put these bits permanently together. Don't have much time in work days and the 22 years old beemer thing sometimes wants some attention to serve me, my bike and my missus... A couple of photos, more to follow:   |
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Post by Kristjan on Jun 11, 2014 15:37:09 GMT
Haven't done much lately, been working on other stuff and now my friend's CBR takes my garage space. I'll continue the story later. I'm nearly there with the motor to be honest, but... But good news is that I'm going to pick up another bike so I could ride something while the main thing is in progress. Sadly, still water cooled as no good oilers in sight.  Fucking everything has been streetfightered these days, damn!  |
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Post by Kristjan on Aug 30, 2014 17:25:23 GMT
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Post by Kristjan on Dec 13, 2014 19:47:38 GMT
Attempted to start it today. Filled up with oil, put new oil filter on. Then went to gas station to get some fuel and antifreeze. Filled the tank, started filling the cooling system and discovered what - there's a fucking tiny hole in the middle of the radiator! So I'm in need of a new one. To save time and efforts, I'll look for a small one so I wouldn't have to cut it shorter.
Hooked up the battery and nothing. It cranks too slow and it's not the battery's fault. Wired some jump leads from my trusty old E30 - won't help, even tried with the engine running at ~2000 rpm. Interesting bit is that without throttle and at WOT it cranks almost the same, but cranking almost stops when given choke. The starter is either half dead or is the comp ratio too high. Tomorrow will tell. If I can't do anything reasonable, I'll try how shit works woith 24V applied to starter motor. Not a single bang was coming out the exhaust today and that somewhat pissed me off.
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Post by Kristjan on Dec 15, 2014 17:08:58 GMT
Got it running yesterday. Biggest thing needed to say "it's finished enough to ride" is plastics and paint and it's the biggest for a reason: I suck at this. Everything else is just the question of shed time and money. Need brake pads, tyres, air filters and that's about it with the more expensive bits for now.  Coil-on-plug units in place and giving a good spark.  New Y-pipe needs to be manufactured. It'll be stainless instead of titanium though, as that's what I can get from work. Have no idea where to get 2 inch thin wall titanium tubing and ankles, otherwise I'd like to have a go at tigging those together!  Radiator was pissing antifreeze all over the floor, seems like I cut the broken one in half, so in need of a new one, preferrably small so I wouldn't have to cut it.  Wiring is a mess, but works. I lacked OEM connectors so I used what I found when making this. The idea was to bring all the connections together under the tank, so they would be more hidden. When the fairing's off, the bike would look much cleaner without thousands of lightyears of wiring wrapped around it.  And the mandatory OSS keyring in place.  |
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Post by bluedog59 on Dec 15, 2014 18:14:48 GMT
It's looking tidy that. What exhaust is that and how did you wire the stick coils in ? Looking to do the same on my 750w.
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Post by Kristjan on Dec 15, 2014 21:10:06 GMT
It's looking tidy that. What exhaust is that and how did you wire the stick coils in ? Looking to do the same on my 750w. Dont know about the exhaust, bought from the bay as a gsxr1100 item, but didnt fit at all. I turned the flanges down about 2mm to fit in the head and the bends arent right either as you can see. Stick coils - got a k4 or k5 1000 set and new connectors. Wired 1&4 in series and 2&3 in series. They were about 1.8 ohm each which makes 3.6 per 2. Some say youll burn the ecu if resistance per pair is lower than stock coils. I Dont know how the ecu is built, so no comment on that one. |
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Post by busaash on Dec 15, 2014 21:19:12 GMT
Nice build thread
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Fucking everything has been streetfightered these days, damn!
