high compression pistons

[saxophonias]

i have a friend that turboed his d14. I will ask him what he used

OMI performance manufacture their own products. Maybe they can do something
http://www.omi-performance.com/honda-su ... ting-rods/

[SquirtAndSpark]

It's B18B rods from a Integra GSR and they are 137mm length like d16 rods and have a 21mm piston pin .The big end needs some shaving to reduce the thickness other then that they fit in a d16 engine.
B18c rods are type-r rods they are way different...

ow yeah Big end diameter is also d16 dimensions , so they won't fit d14's or d15's

There aren't any oem rods out there that fit a D14 , trust me i've checked them all before.Even pistons from other brands like toyota and others i've checked those too nothing ,there's only a Honda CBR 1000RR piston that is 75mm and might fit.D14 Rods you're stuck to stock or Crower.

tanks again!

I see that is difficult get a good combo :S
here in Portugal I can get custom rods (titanium also ) and custom arias pistons... but this 2 things should cost more than a b16 swap


I dunno what to do maybe a stock internals with low boost...

[hondaNickx]

The crower rods cost around $700-$800 for the D14.Some years ago i asked a seller of Crower rods on ebay if they could also deliver the D14 rods at the same price they advertised the D16 rods.Back then they were selling them on ebay around $650.So that's a good deal if you ask me.

Omi performance could make you custom ones too but i think they would cost you even more then the crowers.In the past i asked around for somebody to make custom rods for the D14 like Carillo , Pauter , and others but they all were very expensive $1000- $1400.

[SquirtAndSpark]

its to much for a student

for the pistons, pg6 skimmed on the top should work, I'm researching now to see if the dome is massive and can get out 0.5mm, especially in the outer parts.

I will see if can get something like this



and appears another problem heigh CR whit stock cam can cause detonation in low rpms, because don't bleed such heigh compression... and if I go to a wild cam I'm afraid to not pass on the MOT.

I find more problems than solutions but the important is never give up


cheers!

[hondaNickx]

PG6 pistons have a compression height of 30mm so they will stick out 0.5mm above your deck.They also have a light dome of about 0.889mm heigh .If you're on a budget i would suggest getting a D14z series engine with PHXG pistons , putting a D16y8 head on that and mill it 1mm.That should give you a Compression of 11.49 :1 with oem parts.

[SquirtAndSpark]

I already have a d16z9 head, looks like new!

pg6 can be very worked, must see this


http://www.onecamonly.com/showthread.php?t=2780&page=2

they have tons of abuse. so I think that is safe cut 0.5mm where is needed on outer parts.

our if p29 dome is massive, cut some of his dome. for now the setup isn't decided. my objective is overbore to 75.5mm so the need of choose pistons, but for now maybe I just add the z9 head and overbore in the future...


edited:

nop, p29 dome is not massive...



edited again:

for my "calcs", with worked pg6 the cr should be more than 10.72:1

extrapolating 30mm CH and 1,5cc dome to 29,5CH, and lets say, 2cc dome the cr is 10.86:1

I think that should be close to real numbers

[hondaNickx]

Yes Rushi does awesome work everytime , but he didn't milled the Piston tops.He just enlarged the valve pockets for his big cam he was going to use in his D16 engine.I also wouldn't recomend you milling the tops of 0.5mm .Your ringlands will move up too and the top will get thinner !

[SquirtAndSpark]

rings closer to the tops improve vacum

anyway, tnks for your advice, I will have it on mind


looks line the best option is a custom ones, bisimoto make custom ones, and a company here can get the same custom arias. a will see the prices

[SquirtAndSpark]

custom ones= 759€ + vat

bisimoto are the same arias pistons and are cheaper

[hondaNickx]

custom ones= 759€ + vat

bisimoto are the same arias pistons and are cheaper

Bisimoto custom pistons are $650 uncoated .That will be around the same price if you include shipping cost and taxes after they are shipped to the UK.

They also sell regular arias pistons but in a 'Bisimoto spec'

These are the specs of those pistons (i asked them a while ago)
D16y8 Bisi spec piston :
- Dome/dish volume: 0.2
- Compression height: 1.154

D16z6 Bisi spec piston:
- Dome/Dish volume: -0.4
- Compression height: 1.181

D16a6 Bisi Spec piston:
- Dome-Dish volume: -0.3 (75.05)
-0.5 (75.50)
- Compression height: 1.166 (73.05 & 75.50)



They are similar to Arias spec pistons.
Arias spec D16y8 pistons have a Dome of 0.4cc and a compression height of 1.154".Try contacting OMI Performance ,they are in a process of manufacturing there own pistons and they also work along a company that can have custom pistons manufactured. (Deckers Motorenrevisie)