D14 Custom connecting rod Group buy.Re-started!!

hondaNickx
Posts: 713
Joined: Wed Aug 05, 2009 1:06 am
Location: Belgium

Re: D14 Custom connecting rod Group buy ??

Post by hondaNickx »

hmetro24 wrote:I am in, but i am out side UK ( Israel ) ? if that possible Add me.
Which piston are the best and cheapest. If I am going to pay 600$ for piston, So i would buy d16 block and get rods and pistons for half the price.
I Have d14a4 with d16y8, so i reckon I can use different piston

Israel would be possible i think ,but it would cost slightly more to ship .
You can't use different pistons because the deck height remains the same.

All off the below pistons are calculated with 75.50mm bore pistons and sit 0.3mm below deck with these rods.

Stock D16a6 pistons ( PM6)
They have a - 3.4cc dish along with 75.5mm bore pistons these would give you 9.7 :1 compression ratio.
These are available on ebay for about $120 .

Stock D14Z (99-00) (PHXG) pistons are similar and have a -2.4cc dish would give you 10 :1 compression.


Stock D16y5 pistons (P2M-00) Are also similar but have -7.30 cc dish and give you a 8.9 :1 compression.

Those are the only cheap pistons i can think off that work.These aren't ideal but would do for a cheap turbo or n/a build.
Quote from Endyn:"The combustion chamber is a better shape than the DOHC.So don't chunk those 1.6 SOHC engines, they can make really good power. For a pure performance application, regardless of application, I'd choose the SOHC. No bull!"

hondaNickx
Posts: 713
Joined: Wed Aug 05, 2009 1:06 am
Location: Belgium

Re: D14 Custom connecting rod Group buy ??

Post by hondaNickx »

Come on people ,where are those other interested people??
Quote from Endyn:"The combustion chamber is a better shape than the DOHC.So don't chunk those 1.6 SOHC engines, they can make really good power. For a pure performance application, regardless of application, I'd choose the SOHC. No bull!"

Sebastix
Posts: 138
Joined: Sat Aug 15, 2009 2:04 pm

Re: D14 Custom connecting rod Group buy ??

Post by Sebastix »

Tempting...

With some 76mm pistons I could make a killer D14 'frankenstein' engine :) As a spare block when my D16 engine fails...
I think it's better to build a D14 short block than a D16 short block for racing. It's more reliable and making more rpm on track is always nice :)

hmetro24
Posts: 10
Joined: Wed Apr 03, 2013 12:16 am

Re: D14 Custom connecting rod Group buy ??

Post by hmetro24 »

I am in, I would get a set of Rods
Would these pistons fit
http://www.ebay.com/itm/YCP-75mm-Vitara ... 33&vxp=mtr

hondaNickx
Posts: 713
Joined: Wed Aug 05, 2009 1:06 am
Location: Belgium

Re: D14 Custom connecting rod Group buy ??

Post by hondaNickx »

hmetro24 wrote:I am in, I would get a set of Rods
Would these pistons fit
http://www.ebay.com/itm/YCP-75mm-Vitara ... 33&vxp=mtr

I allready stated in previous messages that Vitara pistons would give a reallyyy Loww compression. 7.6 :1 on a D14.
These would fit on these ( 137.7mm C-C) connecting rods but they will sit below deck and give even lower compression then 7:1 .So i would Not recomend these.


Like i stated in previous messages =>

I will make a list and people who are really interested can add theirself . So we have an overview of how many guys we can gather.So if you are interested Add your nickname to the list and post it here.
Quote from Endyn:"The combustion chamber is a better shape than the DOHC.So don't chunk those 1.6 SOHC engines, they can make really good power. For a pure performance application, regardless of application, I'd choose the SOHC. No bull!"

mr kawa
Posts: 60
Joined: Sun Jan 20, 2013 11:35 am

Re: D14 Custom connecting rod Group buy ??

Post by mr kawa »

Sins i am also a newb in internal swaps.
Maybe someone can help us with links to pistons that we can use?

hondaNickx
Posts: 713
Joined: Wed Aug 05, 2009 1:06 am
Location: Belgium

Re: D14 Custom connecting rod Group buy ??

Post by hondaNickx »

Pistons you can use with the 137.7mm custom made connecting rods are:

Wiseco
D16Z6, D16Y7 • Civic SOHC 1992+ Turbo
Part # K546M755 / 75.5mm bore/29.8mm Compression height/Zero with deck/
7.65 : 1 compression Ratio


Wossner
D16Z6, D16Y7 • Civic SOHC 1992+ Turbo
Part # K9426D050 / 75.5mm bore/29.8mm Compression height/Zero with deck/
8.25 : 1 compression Ratio

D16Z6, D16Y7 • Civic SOHC 1992+ N/A
Part # K9267D050 / 75.5mm bore/29.8mm Compression height/Zero with deck/
13.6 : 1 compression Ratio


D16y8• Civic SOHC 96-98 Turbo
Part # K9426D050 / 75.5mm bore/29.2mm Compression height/0.6mm BELOW deck/
9,1 : 1 compression Ratio


D16y8• Civic SOHC 96-98 N/A
Part # K9427D050 / 75.5mm bore/29.2mm Compression height/0.6mm BELOW deck/
10,6 : 1 compression Ratio


Supertech Pistons
D16Z6, D16Y7 • Civic SOHC 1992+ Turbo
Part # P4-HD755-N12 / 75.5mm bore/29.8mm Compression height/Zero with deck/
8:1 compression Ratio


D16Z6, D16Y7 • Civic SOHC 1992+ N/A
Part # P4-HD755-N3 / 75.5mm bore/29.8mm Compression height/Zero with deck/
9,6 :1 compression Ratio


Stock D16a6 ( PM6) pistons
75.5mm bore/29.5mm Compression height/0.3mm BELOW deck/
9,3 : 1 compression Ratio


Stock D16y8 P2P pistons
75.5mm bore/29.3mm Compression height/0.5mm BELOW deck/
8,65 : 1 compression Ratio

Stock D14a4 and D14z pistons also work and sit 0.3mm below deck.
8,9 :1 Compression ratio for D14a4/a3 and 9,5 :1 for D14Z pistons.

Stock D16a6 en D16y8 pistons can be bought on ebay for about $120.

Wossner cost €599 @ Speedequipment.nl
Wiseco's cost €665 Retail price.
Supertech 's cost €495 on Total car concept.nl

Other pistons might work too ,Arias,SRP ,CP, ...
For everyone please READ true this thread cause i have answered all of the questions before.
Last edited by hondaNickx on Mon Feb 17, 2014 6:26 pm, edited 1 time in total.
Quote from Endyn:"The combustion chamber is a better shape than the DOHC.So don't chunk those 1.6 SOHC engines, they can make really good power. For a pure performance application, regardless of application, I'd choose the SOHC. No bull!"

hondaNickx
Posts: 713
Joined: Wed Aug 05, 2009 1:06 am
Location: Belgium

Re: D14 Custom connecting rod Group buy ??

Post by hondaNickx »

D14 Custom connecting rods 137.7mm length (For use with 29.8mm Ch pistons)

1. Hondanickx
2. Mr Kawa
3. Hmetro24
4.
5.
6.
Quote from Endyn:"The combustion chamber is a better shape than the DOHC.So don't chunk those 1.6 SOHC engines, they can make really good power. For a pure performance application, regardless of application, I'd choose the SOHC. No bull!"

armyej9
Posts: 23
Joined: Mon Feb 04, 2013 8:39 pm
Location: Netherlands

Re: D14 Custom connecting rod Group buy ??

Post by armyej9 »

D14 Custom connecting rods 137.7mm length (For use with 29.8mm Ch pistons)

1. Hondanickx
2. Mr Kawa
3. Hmetro24
4. armyej9
5.
6.

hondaNickx
Posts: 713
Joined: Wed Aug 05, 2009 1:06 am
Location: Belgium

Re: D14 Custom connecting rod Group buy ??

Post by hondaNickx »

Are there still people interested ? I'm going to try and get this started again.I contacted the seller and the prices are still the same.Leading time is 7Weeks to produce these.

3 sets => £310 per set with bolts
6 sets=> £290 per set with bolts
Shipping to europe was £30 shipping , to the UK £10.

I also have been thinking about using the YCP Vitara pistons since they are cheap and reliable.So many people using them today without problems.The new Vitara pistons are stronger and better sized .They also have a teflon coating.And they only cost $150 .

If we would mill the top of the vitara piston 1mm shorter we could reduce the volume of the piston and get 8.4 :1 compression with a longer rod and a stock D14 ( Y7) head.With a d16Y8 head the compression would rise to 8.7 :1 which is still very low compression but it's a lot better then without milling the vitara piston which gives 7.7 :1 to 7.9 :1 compression.

There's a russian who milled a similar vitara piston to fit in a d15 engine and he made around 300hp with those pistons.He used the general replica piston not the stronger YCP pistons ,So i think they can handle it if the top is milled.His nickname was Kyky-Pyky (read as kuku-ruku RUS)
engine: D14Z1
Specs here RUS->ENG Google

http://translate.google.ru/translate?sl ... ky-pyky%2F

Image

Image[/quote]

This was posted before in the dyno section

This is how the piston looked like after milling 1mm
Image





I would keep the milling of the piston to a Max. of 1mm up to 1.2mm.Milling the top down reduces the top ring land ,which also increases the chance of breaking the top ring land.

This is how the new vitara pistons look like
Image

Speedfactory used these pistons and made about 550whp with these pistons and they used FJT I beam rods.
They failed when they were at 600whp they were not sure if it was the pistons.Afterwords they went with forged pistons ,and when they spun a bearing on the dyno and had no time left ,they used the Vitara pistons again .
This time in a sleeved d16 block and made 635whp with those YCP vitara pistons .So it's save to say they can handle 500whp in a stock sleeve d-series engine.Even if we mill them 1mm i think they still can handle 300hp in a D14 engine which is more then enough out of a d14 turbo i guess :lol:


The williams motorsport h beam rods of this thread are still the cheapest .
For the vitara pistons we need a connecting rod length of 140.2 mm which is 1mm longer so the Vitara pistons needs to be milled 1mm. For most aftermarket forged pistons we need a connecting rod length of 137.7mm.

So we can do a groups buy for both specs aftermarket and Vitara pistons ?

140.2mm Vitara spec H-beam rods
1)
2)
3)

137.7mm Aftermarket spec H-beam rods

1)
2)
3)
Quote from Endyn:"The combustion chamber is a better shape than the DOHC.So don't chunk those 1.6 SOHC engines, they can make really good power. For a pure performance application, regardless of application, I'd choose the SOHC. No bull!"

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