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Author Topic: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)  (Read 43714 times)

Offline Nebr_Rex

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Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #140 on: Sep 11, 2015, 22:49:09 »
Updates coming soon.


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Offline captain awesome

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    • mulligan machine
Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #141 on: Sep 12, 2015, 09:17:14 »
Was hoping you still had something in the works. Post up when you can.

Offline Nebr_Rex

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Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #142 on: Sep 24, 2015, 23:05:51 »
Finally found some pistons to fit the cylinders the cycle shop bored
to 69.5mm vs. 69mm for the KZ750 big bore Wisecos. The bore dia.
and the pin dia. are the same. The bad part is the deck height is shorter.
The block will have to be milled some, but it should work. Piston is a
flat top, shooting for an 8/1 compression ratio.
End result will be (with any luck) a turbocharged 470cc 440 with my
analog(?) fuel injection supplemented with a pair of constant flow injectors.
Here are a couple of lousy phone pics. Second pic is a stock piston with
the depth bar on a dial caliper to show the difference vs. stock.
Will post some better ones later.


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Offline DohcBikes

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  • Fuck You.
Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #143 on: Sep 25, 2015, 01:25:45 »
You do at least win some sort of award for the longest standing run of technical bullshit with noone calling you on it. Theres just so much going wrong here that I can't even start. Don't worry, I won't post again. Just bookmarking for entertainment.
« Last Edit: Sep 25, 2015, 01:27:23 by DohcBikes »
burning bridges sometimes light the most productive paths

Offline Nebr_Rex

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Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #144 on: Sep 25, 2015, 21:01:12 »
Here are some better pics.
Piston is Wiseco, 1.0 over for a trx250ex Honda quad.
It's the only one I could find with a 69.5 bore and 15mm pin.
I was unable to locate any info on pin height. Not until
the local cycle shop had one in for a rebore did I have
a chance to measure one. Being the stock 250ex piston
is .085 shorter than the 440 I decided to give it a try.
Turns out the Wiseco piston is shorter yet.

Stock 440     = .675
Stock 250ex = .590
Wiseco.         = .563




DohcBikes,
   Hope you resolve whatever issues are bothering you.
A lot of your posts seam to be on the negative side.
So like they say in the South, 'bless your heart'.


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« Last Edit: Sep 25, 2015, 21:12:09 by Nebr_Rex »

Offline irk miller

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Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #145 on: Sep 25, 2015, 21:11:32 »


DohcBikes,
   Hope you resolve whatever issues are bothering you.
A lot of your posts seam to be on the negative slide.
So like they say in the South, 'bless your heart'.
.
That's saying he's retarded. ;)


Sent from my iPad using Tapatalk

Offline doc_rot

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Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #146 on: Oct 03, 2015, 21:45:08 »
Is that a ceramic coating on the Wiseco piston skirt? Keep up the good work, been following your progress, very interesting.
« Last Edit: Oct 03, 2015, 21:47:26 by doc_rot »

Offline Nebr_Rex

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Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #147 on: Oct 10, 2015, 22:11:37 »
Yes it is.
I've delt with only one other coated piston and that was
a Keith Black series for a 302.


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Offline canyoncarver

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Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #148 on: Oct 20, 2015, 14:16:49 »
Glad this thread is moving again.  Is that an 81' GPZ 1100 I saw a few posts back?



--
KZ400 The Rabbit
YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
65 Norton, My damn Shovelhead chop
more YZF750R's, the KZ's, a Zephyr750...and the unfinished 75' CB550 cafe.
--

Offline Nebr_Rex

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Re: Dr. Jekyll and Mr. Hyde ( a pair of KZ400s)
« Reply #149 on: Oct 20, 2015, 21:53:43 »
Yes it is, one of to many projects.


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