Author Topic: 836cc wiseco kit?? (Read 8294 times)

luss71 · « **on:** August 02, 2006, 09:16:24 AM »

Where can i get the best price

i live in Canada,so they have to ship here.

nippon · « **Reply #1 on:** August 02, 2006, 09:26:28 AM »

Currently, the best price I know is : http://www.cyclexchange.net/ for a Wiseco big bore kit, $354.00,
but they will offer an own 836cc kit soon.

They say:
Do not buy your 836cc big bore kit ( Not yet )
Cycle X has developed our own 836cc big bore kit ( coming soon )
OEM quality
Our big bore kit features: Pistons, rings, wrist pins, Circlips, head gasket.
10 1/2 compression
Super quality, Super pricing.
Approx. price $ 239.00
Coming soon...........

I'm looking for a kit, too. The question is: 'Is it worth to wait or would it be better to purchase
an well known Wiseco kit'?

nippon

MRieck · « **Reply #2 on:** August 02, 2006, 10:20:27 AM »

Quote from: nippon on August 02, 2006, 09:26:28 AM

Currently, the best price I know is : http://www.cyclexchange.net/ for a Wiseco big bore kit, $354.00,
but they will offer an own 836cc kit soon.

They say:
Do not buy your 836cc big bore kit ( Not yet )
Cycle X has developed our own 836cc big bore kit ( coming soon )
OEM quality
Our big bore kit features: Pistons, rings, wrist pins, Circlips, head gasket.
10 1/2 compression
Super quality, Super pricing.
Approx. price $ 239.00
Coming soon...........

I'm looking for a kit, too. The question is: 'Is it worth to wait or would it be better to purchase
an well known Wiseco kit'?

nippon

Those have to be cast pistons. Wiseco are forged.

tramp · « **Reply #3 on:** August 02, 2006, 03:55:02 PM »

keep us updated because i'm thinking of going to a big bore

Big Jay · « **Reply #4 on:** August 02, 2006, 10:34:41 PM »

Pass on the Chinese stuff. Go with Wiseco
http://cbrzone.com/pistons.html

Jay

nippon · « **Reply #5 on:** August 03, 2006, 12:24:47 PM »

MRieck and Jay,
thanks, I didn't know this,...no need to wait, i will order
the Wiseco kit.

nippon

Sam Green Racing · « **Reply #6 on:** August 03, 2006, 03:57:21 PM »

Nippon, Jays prices are as good as you'll get and buying from a member of the forum gives you some piece of mind.

Sam.

Sam Green Racing · « **Reply #7 on:** August 04, 2006, 03:53:20 PM »

Quote from: MRieck on August 02, 2006, 10:20:27 AM

Quote from: nippon on August 02, 2006, 09:26:28 AM
Currently, the best price I know is : http://www.cyclexchange.net/ for a Wiseco big bore kit, $354.00,
but they will offer an own 836cc kit soon.

They say:
Do not buy your 836cc big bore kit ( Not yet )
Cycle X has developed our own 836cc big bore kit ( coming soon )
OEM quality
Our big bore kit features: Pistons, rings, wrist pins, Circlips, head gasket.
10 1/2 compression
Super quality, Super pricing.
Approx. price $ 239.00
Coming soon...........

I'm looking for a kit, too. The question is: 'Is it worth to wait or would it be better to purchase
an well known Wiseco kit'?

nippon
Those have to be cast pistons. Wiseco are forged.

Mike, they are Wiseco, I just looked

Soos · « **Reply #8 on:** February 09, 2007, 06:40:28 PM »

Cycle X 850cc piston kits are permanent mold , cast pistons.
836cc piston kits are 65mm, our kits are 65.5mm which allows you to re-bore your worn, tired 836cc cylinders.

Cycle X piston kits feature:

* Pistons, rings, wrist pins, circlips.
* 10 1/2 compression ratio.
* Large valve relieves for hot street cams.
* Replacement rings are in stock.
* Balanced exact and weigh the same as stock 750 pistons.

Note: Extra displacement and compression require longer duration cams for best performance and reliability.
836 head gasket sold separately for $ 29.00 with purchase of kit.
$ 249.00 EN-1010

Has anyone tried these out?

And what is the downside to cast vs. forged?

Anyone know what "permanent mold, cast pistons" are?
Is it any better than normal cast pistons?

l8r

Hockers Choppers · « **Reply #9 on:** February 09, 2007, 07:03:42 PM »

I have a set and they look awesome!! I'll let you know how they perform!

dakeddie · « **Reply #10 on:** February 09, 2007, 07:07:56 PM »

Forged pistons will be stronger than cast. The forging process deforms the grain of the metal into a more favourable orientation and shape, which is somewhat hard to explain without a diagram. I'd shy away from the cast pistons.

I believe by permanent mold, they mean that they are not sandcast.

I bought my kit from Buzz at http://dynoman.net/. I highly recommend dealing with Buzz, and he come highly recommended from many others on this forum. I've never dealt with cyclexchange, and I'm sure they're great too.

dakeddie · « **Reply #11 on:** February 09, 2007, 07:17:32 PM »

Ok, so in trying to find some diagrams of the metals grains being squished by forging compared to cast grains, I found some interesting info of cast vs. forged pistons. I still stand by forged pistons being stronger, but cast pistons have a favourable property too... they have a lower thermal expansion coefficient. Meaning they expand less when heated and can be run at closer clearance to the cylinder. There are also some casting technologies that give a piston that's almost as strong as forged.

Soos · « **Reply #12 on:** February 09, 2007, 07:49:36 PM »

Quote from: dakeddie on February 09, 2007, 07:07:56 PM

I bought my kit from Buzz at http://dynoman.net/. I highly recommend dealing with Buzz, and he come highly recommended from many others on this forum. I've never dealt with cyclexchange, and I'm sure they're great too.

Huh.....

thanks for the link there....
I'm deciding on where to get pistons, and for $349 on the dynoman website, that seems to be the best deal I've seen for 65mm pistons sofar.
Beats what I have found on ebay already!

L8r

seaweb11 · « **Reply #13 on:** February 09, 2007, 07:52:55 PM »

Nothing to add except I plan on this for my new Tracy Bike and want to follow the results of recent keeners.
Go boys Go!

Photos and how to and not tos would also be great!

kghost · « **Reply #14 on:** February 09, 2007, 09:47:53 PM »

I wonder how that new kit with the cast pistons will compare to the weisco in regards to ring sealing.

It seems to me that the weisco 836 kit using the 350 overbore pistons/rings has more blow by than a stock set up.

I wonder what if any the ring difference is with these new cast pistons.

Anyone have any ideas?

mwohlenhaus · « **Reply #15 on:** February 10, 2007, 08:40:41 PM »

why don't you call ken and ask, he really is a very personable guy. Why would the rings be any different than a cb900, or 1000 if you are talkin about the big piston. If not, then you must be talking about an out of spec bore job. wiseco knows pistons and performance, so does Ken.

kghost · « **Reply #16 on:** February 10, 2007, 08:47:47 PM »

Quote from: mwohlenhaus on February 10, 2007, 08:40:41 PM

why don't you call ken and ask, he really is a very personable guy. Why would the rings be any different than a cb900, or 1000 if you are talkin about the big piston. If not, then you must be talking about an out of spec bore job. wiseco knows pistons and performance, so does Ken.

Bore is not out of round and I have no issue with the performance.

My understanding is the pistons and rings were designed for a cb350 twin overbore.

What I have noticed as have others is there is more crankcase pressure with the wiseco kit then there is over stock. Others I have talked with have noticed this as well.

I don't have any experience with any other of thier products except in cars.

Nor do I have any experience with any other manufacturers of 750 overbore kits.

masonryman · « **Reply #17 on:** February 10, 2007, 09:51:08 PM »

It only makes since that you would get more crankcase pressure, if you have the same percentage of leakage, with a larger mass moving up and down in the same space you are going to build up more pressure

kghost · « **Reply #18 on:** February 10, 2007, 09:58:09 PM »

Quote from: masonryman on February 10, 2007, 09:51:08 PM

It only makes since that you would get more crankcase pressure, if you have the same percentage of leakage, with a larger mass moving up and down in the same space you are going to build up more pressure

If your refering to the pistons moving up and down...

I'd think they would kinda offset each other. Since they alternate position, two moving up as two move down.

The circumference of the rings themselves has not increased that substantially. 61 mm to 65 mm

masonryman · « **Reply #19 on:** February 10, 2007, 10:05:21 PM »

If your refering to the pistons moving up and down...

I'd think they would kinda offset each other. Since they alternate position, two moving up as two move down.

The circumference of the rings themselves has not increased that substantially. 61 mm to 65 mm

Quote

If it is not that much then whats the point?

kghost · « **Reply #20 on:** February 10, 2007, 10:09:09 PM »

The point is I and others have had noticable increase in crankcase pressure.

I for one would like to see the crankcase pressure to be in the range of the stock engine.

Hockers Choppers · « **Reply #21 on:** February 11, 2007, 05:57:28 AM »

I'd say it has more to do with the higher compression more than anything.

Big Jay · « **Reply #22 on:** February 11, 2007, 03:02:03 PM »

Quote from: kghost on February 09, 2007, 09:47:53 PM

I wonder how that new kit with the cast pistons will compare to the weisco in regards to ring sealing.

It seems to me that the weisco 836 kit using the 350 overbore pistons/rings has more blow by than a stock set up.

I wonder what if any the ring difference is with these new cast pistons.

Anyone have any ideas?

Wiseco kits DO NOT use 350 overbore piston rings. All Wiseco rings are custom made for their particular applications. They even supply them to other piston manufacturers.

Where does this kind of information come from?

Jay

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Author Topic: 836cc wiseco kit?? (Read 8294 times)

luss71

masonryman

masonryman