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Recommendations, boring, ballancing

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Installed :)

7388273984_4b6fae612c_c.jpg


Its a little bright though. I might have to put something red over the display on the inside.
 
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9.06?! Have you read the stator papers? Bypassed the stator run to the headlight? Checked the stator output at 5K RPM? Moved all your grounds to a common point? Wired your stator directly to your R/R? Oh wait... :p
 
lol Didn't have a battery handy so I ran the bike off of a 9v battery while I had the headlight out.
 
Hey Mekanix, any news? I feel like I'm going into withdrawl here.LOL Hope everything's good in your world.-Pete
 
Its going pretty good. The head has bigger valves, cam's are done, head gasket's done.

Porting and flow bench are next.

On my end I'm redoing the electronics plate. There is lots of room now without having an airbox. I'm making a box for storage and tools just on top of the battery, then maybe a catch can for the oil breather.

Still have lots of little details to deal with but its getting closer to being done.
 
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Mekanix said:
Its going pretty good. The head has bigger valves, cam's are done, head gasket's done.

Porting and flow bench are next.

On my end I'm redoing the electronics plate. There is lots of room now without having an airbox. I'm making a box for storage and tools just on top of the battery, then maybe a catch can for the oil breather.

Still have lots of little details to deal with but its getting closer to being done.
Click to expand...

No photos? Don't believe you :p
 
Any pic's of the head or it being flowed on the bench?
Before and after results? (On that same flow bench.)

Eric
 
Am enjoying the read, especially the compression and valve calculations.

It may be a bit late for this but did you consider just putting a GR 650 engine in your frame if they have the same crankcases/engine mounting points. Looking back, if you are determined to keep the 400 bottom end would you consider machining the 650 barrels shorter and using the 650 head as an easier/alternative proposition?

Paul
 
Hi Paul, I've never considered a GR engine in this bike. The bolt pattern is close but not a direct swap. It would give me a bit more torque sooner but that engine was tuned to be a real powerhouse. I wanted to keep as much of the outside looking stock as possible.

The GR specs
Bore 77mm
Stroke 70mm
Comp 8.7:1
chamber volume 37cc's
50 hp @ 7200
45nm tq @3500
5 speed



The 400X
Bore 67mm
Stroke 56.6mm
Comp 10.5:1
chamber volume 17cc's
42 hp @ 8500
28 nm tq @ 6600
6 speed

If I were to use a GR head and block the compression ratio would be 7.2:1
Its just not the way to go.


In order to get the compression back Up I would need a gs 450 or 500 head but that would mean going back to a two valve design.


Here's a teaser for you guys.
Before was 23 in 20 ex
After: 25 in 22 ex
7452370244_3572e5d96d.jpg


No flow results yet, looking forward to it though.


Got some time this weekend to get to the battery box I'll post some pictures of the process if I can.
 
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As soon as I get all the parts gathered up.
I think near the end of the month it should be ready.
 
No pics or it didn't happen eh?

Well here you go:

In this pic I still have to clean up the wiring when I find a good fuse panel.
7640452904_dbfb27bb1c_z.jpg


7640452340_95090f17bb_z.jpg


And New RR location:
7640449198_15a459c99e_z.jpg

7640449840_eeeeda668d_z.jpg
 
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Cool... interesting place for the R/R too, at least it should get lots of air flow there :)

Although it would be slightly more effective if the fins were pointing fore and aft rather than side to side... ;)
 
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