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BIKELAND > FORUMS > ZX12R ZONE.com > Thread: Just took the 1347 out... NEW TOPIC NEW POLL POST REPLY
swft


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posted November 11, 2002 12:09 PM        
Just took the 1347 out...

And back. Man, that bike pulls so hard, it'll hurt ya. Dyno'd it a bit ago, making 196 hp on the stock computer, with no power commander. 17/48 gearing means that, if you twist that throttle, it'll try to rip your arms right outta your shoulders and laugh at ya. It's a lil cold and wet out, so I didn't try anything to crazy, just a couple high speed blasts and some wheelies. The easy-sneak-up-on-it wheelies, because I didn't want to be spinning the back tire up too much. Last one I tried, the back tire went sideways about six inches just as the front was getting light, so I decided to cool it for now.
____________
82 Gpz750, 84 Ninja 900, 2000 ZX12R (Muzzy Big Bore Kit), *another* 2000 ZX12R (Muzzy custom stroke crank 1341cc motor), 2004 ZZR1200, 2005 ZX10R, 2007 ZX14, 2008 Concours 14, 2014 Versys 650, 2014 Yamaha WR450F, 2015 Ninja H2


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fastestr1


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posted November 12, 2002 05:16 PM        
So want combo is the 1347?
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Black 02, 8.99 @ 161.95 motor on NOS
Put one knee down for the curves and both knees down for GOD

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swft


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posted November 12, 2002 05:38 PM        
1270, custom stroke crank.

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fastestr1


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posted November 12, 2002 06:16 PM        
What all did you have to do the make it fit. The 1361 and carrillo rod issue is to much for me. I just like to remove and bolt-on.
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Black 02, 8.99 @ 161.95 motor on NOS
Put one knee down for the curves and both knees down for GOD

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ZHooligan


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posted November 12, 2002 06:21 PM        
Swfts 1347 is essentially a 1361 with a minute bit shorter stroke. Had to be under 1350 to run in the ""production appearing" class at Bonneville.

If you are looking for bolt and go the 1270 kit is hard to beat. Give it 500 miles to seat the rings and then go and have fun.
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swft


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posted November 12, 2002 08:46 PM        
Yah, would agree with Z. My 1270 bike was trouble free for over 7000 miles with a 1270 in it.

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fastestr1


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posted November 13, 2002 04:20 AM        
Yes I was thinking about that and since the 1361 does not have NOS pistons available. It is starting to look even better.
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Black 02, 8.99 @ 161.95 motor on NOS
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zxlnt


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posted November 13, 2002 06:19 AM        
The 1361 uses the 1270 pistons of course. U can get the 1270 with the nitrous pistons, so why not do that and get the stroker crank. I believe some machine is work is done on the 1270 pistons when you go to the 1361 kit. So the same machine work could be done on the 1270 NOS pistons?? Right Mr. Meyer????


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swft


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posted November 13, 2002 06:28 AM        
Yah, don't see why that wouldn't work...
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fastestr1


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posted November 13, 2002 10:23 AM        Edited By: fastestr1 on 13 Nov 2002 12:54
This is true but then J&E would have to do the work since Muzzy does not do alot of work in house. My friend just ordered a 1361 and was told he was getting NOS piston but when it showed up no NOs pistons. So he called(Muzzy) and was told sorry I was incorrect we do not offer NOS piston for the 1361. The only differance besides the rings being lower is the lenth of the piston shirts, right?
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kcadby


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posted November 13, 2002 11:00 AM        
The 1361 pistons are "FlatTop" pistons...the "domes" are machined off (flush/flat) to keep the compression within reason for the street... which makes the top of the pistons thinner than "1270 pistons"...
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BA


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posted November 13, 2002 02:06 PM        
boy I'm really confused here.

So, you can't safely run Nitrous with the 1361? (due to the thin top pistons?)

I thought Bergie was running a nitroused 1361???



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kcadby


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posted November 13, 2002 03:21 PM        
You can run NO2...just not TOO MUCH...
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ZHooligan


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posted November 13, 2002 04:17 PM        
I,m Running the 1270 pistons in my 1361.
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fastestr1


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posted November 13, 2002 04:21 PM        
What did you have to do to them, the Muzzy add said you have to send them the pistons for machining
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ZHooligan


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posted November 13, 2002 04:36 PM        
Zip to the pistons. When Velasco checked the deck and all that I beleive he added a gasket. But you would have to ask him. I think SWFT's 1347 has the 1270 pistons as well.
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swft


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posted November 14, 2002 07:45 AM        
That's right, and because of the shorter stroke, I'm running minus the gasket, just the spacer plate on the bottom. Not a ton of difference in stroke between a 1361 and a 1347.
____________
82 Gpz750, 84 Ninja 900, 2000 ZX12R (Muzzy Big Bore Kit), *another* 2000 ZX12R (Muzzy custom stroke crank 1341cc motor), 2004 ZZR1200, 2005 ZX10R, 2007 ZX14, 2008 Concours 14, 2014 Versys 650, 2014 Yamaha WR450F, 2015 Ninja H2


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kcadby


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posted November 14, 2002 08:59 AM        
One more time ...
MUZZYS...machines the tops of the 1270 pistons for use in the 1361 kits because the compression would be too high for "pump gas" in some installations...
They (IMHO) would rather the compression be a bit low in a few motors that get built than..."too high" in ANY motors that get built with there kits...
If you order 1361 kit with the 1270 pistons...YOU would have more control over the exact compression ratio that YOUR motor ends up with...

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fastestr1


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posted November 14, 2002 10:05 AM        
What if you use the falicon rods, I read they a 2mm shorter. But then you have to do the mods for them to fit.
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Black 02, 8.99 @ 161.95 motor on NOS
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supraman95mb


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posted November 14, 2002 07:16 PM        
My bike lost oil pressure and killed the crank. I have to do the crank and pistons. So I am going with the 1361 kit. However I want to run NOS too. Do I need the 1361 kit with the 1270 pistons? Or do I need to go with what Swft has? What is the best route you guys?
Thanks I really need help on this one guys. 4k miles on a 2002 and its blown and warranty people are not helping me at all.
Thanks again!!! Any and all info would be apprevciated. Rod info, cams, etc
Thanks
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02 Stroked 12R
95 Supra Single Turbo 750+ hp

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ZHooligan


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posted November 14, 2002 07:42 PM        
If you are buying new pistons and intend to run NOS there are NOS pistons available. I am running the 1270 pistons with my stroker crank and have had zero problems. I do run race gas because of compression.
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krexken


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posted November 14, 2002 08:22 PM        
My 1361 runs 1361 pistons with the comp. at 13.5 to 1 on 92 octane gas. I've also got a dry shot on it. I think as long as you don't get nitrous happy, most pistons will work fine. If you're building a serious nitrous motor, that's a different story. I don't think I'd even go with a stroker crank if I were building a serious nitrous motor. Just add a little extra dose of nitrous to make up the difference. I've seen some 1290s go mid 170s in the quarter with some serious nitrous. They were at 60" too!
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supraman95mb


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posted November 14, 2002 08:23 PM        
Bear with me Z as I am a newbie but want to learn as much as I can before I spend this load of money.

Well I want to run NOS on it every now and then at the track. It will be riden mostly so I just want to make sure if I go with what you have that I can spray it. How much can you spray it safely though? I like the Muzzys stealth kit, however I have heard that Ryan Schnitz has a better, cheaper, more reliable kit. I want to have fun on the bike and use its full potential, however at the same time be able to spray it on the weekends.

I do have to replace a rod or maybe two. Are the stock rods up for the challenge, Bearings? and what kind. How much are the stock rods? Carillos are nice but I heard like $900 and they are shorter so that throws your whole scenario off.
Thanks
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95 Supra Single Turbo 750+ hp

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ZHooligan


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posted November 14, 2002 10:14 PM        
It all comes down to what you want. There are guys spraying with stock everything and have done it for a long time. I persoanlly decided to build a tough motor while it was a part. I did not put NOS pistons in. I originally built a 1270. The rings didn't seat and it smoked. So I had to pull it apart and at that point I decided to make it a 1361. Mike Velasco built the 1361 for me and used the 1270 pistons. My compression ratio is in excess of 14 to 1. The exact amount is written some place.

I run race gas, and spray on occasion. I am running the dryshot system. With my 1361 kit on the juice I put out 263-4 hp. I am in the mids of putting a Yosh EMS system on so I can have both a non NOS and NOS map available.

Because I intended to spray I decided to install Carillo rods. I am not aware of them being shorter. I know that installed, everything measured out deck wise and when we CCd the head the compression ration worked out just over 14 to 1. We sent my rods in with the crankshaft to make sure the crank guy set things up perfect.

My recommendation is the dryshot and stay around a 50hp hit. The 1361 puts out right at 210 hp and 119 ftpounds of torque. On the juisce 264 hp
and 168ftpnds of torque.

The rods are a serious investment. Not only the cost (I paid $800) but the install work as well. Unless you are really going to beat the hell out of things you can probably do the deal without the rods. But if you can afford it I do them so there isn't any I wish I did later. To date persoanlly I have exploded a number of really high output engines. Big dollar, mondo bad boy race engines. I have been amazed how the Carillos and Ti rods have always survived. They are tough.
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future; -- Youth is forever.

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jason370


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posted November 15, 2002 01:20 AM        
cool
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BIKELAND > FORUMS > ZX12R ZONE.com > Thread: Just took the 1347 out... NEW TOPIC NEW POLL POST REPLY

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