KZScott
Needs a life
high on speed
Posts: 7235
|
posted December 05, 2011 06:34 PM
leak down results
I kinda thought dads bike was down on power....
#1
#2
#3
#4
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
  
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted December 05, 2011 08:55 PM
rings and HG. its only leaking between the bores, nothing into the coolant passages. next time its getting studs instead of the stock bolts. also had slight contact (PtH) which im sure didnt help the HG issue
cam chain didnt really stretch any
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
dougmeyer
Needs a job
moderated
Posts: 2713
|
posted December 06, 2011 08:09 PM
It shouldn't be doing that. Something else is going on.
____________
It's not that I think you're dumb, it's just that so much of what you know isn't true....
|
dougmeyer
Needs a job
moderated
Posts: 2713
|
posted December 06, 2011 08:10 PM
 Edited By: dougmeyer on 7 Dec 2011 04:11
It shouldn't be doing that. Something else is going on.
Sorry for the double tap
____________
It's not that I think you're dumb, it's just that so much of what you know isn't true....
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted December 06, 2011 08:19 PM
have any pointers on what to inspect Doug? this block was bored, plated and surfaced by Millennium, and the head side of the gasket looks to have been sealed.
this was the surface finish by Millennium
more pics of tear down
extra oil squirter mod. all 4 pistons get sprayed instead of just 2. the cases are cast in such a way that everthing looks normal with all 4. its like they planned to do all 4 but for some reason didnt finish?
heavily modified/baffled oil pan
reusing
reusing
replacing
not sure if this damage happened over the last couple yrs, or when we took out #4 and outside mains in 09. im leaning towards 09 as it would have starved this as well. it would probly be fine, but i have spare shells
this is #3 after a little rub with 1500 grit sand paper just to see how rough it was. a little experiment. its getting thrown out anyway. i may mic it just for curiositys sake
reusing
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
dougmeyer
Needs a job
moderated
Posts: 2713
|
posted December 07, 2011 06:56 PM
Did you check the head for flatness? That bike is NA right? There's no obvious detonation. There has to be a reason for a stock hd gasket to fail.
____________
It's not that I think you're dumb, it's just that so much of what you know isn't true....
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted December 07, 2011 08:31 PM
No I havent, I will!
1287cc Cometic HG. stock head bolts. Most of the passes on the bike are NA, but it was getting sprayed. started with 30 dry in 2010, bumped it to 55hp shot that season. only sprayed a few wknds. in the first part of 2011 i got my best passes NA out of the bike, (8.8s) put on a progressive controller later on in 2011 ran 55 for a couple wknds, it started getting some extra blow by(oil out the case vent), thought rings as it was slowing down NA also and couldnt get it off the line nearly as well. it wasnt like it was instantly after the nitrous use either, we allways run some NA passes the first day and it was slowing down before the nitrous use in 2011. we knew it was coming apart this winter so upped the jet (60ish) for a heads up event to make up for the power loss(hoping it stayed together), it kinda worked as I won the event, but the bike only went a best of 8.85 @158. nothing compared to earlier in the season when I was getting ever so close to 8.5s on a little less spray.
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
dougmeyer
Needs a job
moderated
Posts: 2713
|
posted December 07, 2011 09:45 PM
Yeah, it kinda worked, but I think it kinda blew the head gasket.....
____________
It's not that I think you're dumb, it's just that so much of what you know isn't true....
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted December 08, 2011 02:31 AM
if the head was flat and we gave it a little more room on squish, how much could we spray with studs?
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
|
posted December 08, 2011 04:34 AM
Scott, did you use a straight edge and feeler gauges on the block to make sure the block wasn't low between the cylinders before assy? They usually are 95% of the time. I know they said it was resurfaced but that's a broad term. See if there low now.
Typically a seasoned block doesn't shrink much more once its resurfaced. UNLESS you increase the heat (nitrous) from what it was used to seeing previously when it was in service. Aluminum tends to shrink smaller than it was when cooling from extremes vs the other material around it. You see this when welding aluminum also.
I would recommend studs also!!!! The head may have been lifting especially with the pistons hitting the head.
____________
Y2KZX12R
CompetitionCNC.com
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted December 08, 2011 01:45 PM
No I didnt check it Jim. it seems as if I get something new to check on every build now that I have quit assuming stuff is ok. I thought that they must have taken at least .010 off as i had to use 2 base gaskets on the build, so I assumed it was flat.
heres a few things Dads bike is getting(except the copper HG, thats mine) this stuff showed up from Muzzys today
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
|
|
HOME
NEW TOPIC