i am about to buy a block and want to know if any one knows where i can get pistons for 11.5:1 or 12.5:1 for this block i have been looking and cant find anything.

 

srp makes a set of pistons for usdm d15. depending on your goals there really is no need for aftermarket pistons as the pm3's that come factory in the b2/b7 are of perfect design for a high comp build, there flat top and 0 deck right from honda. mill your head for desired compression this also tighens up the quench for a more explosive burn

 

ARIAS makes an actual d15 specific piston now. It was designed a little over a year ago.

 

i believe these are the pistons that Don from oco help design and what he used in his all motor d15

 

Thanks guys i looked up ARIAS and i only saw d16 pistons in the catalog. I found the srp pistons for the d15 but they were only 10.5:1. do i need to call them for answers about the pistons?

On the block i bought the pistons had pm3 and 0.8 on the top have they been bored oversized?

I dont wanna mill the head more than i have to to make it flat i heard there are timing problems if i take to much off

Finally my goal on building this motor is to have a dd with 175-200 on all motor (i dont wanna mess with a turbo) using 10.5:1 pistons, a good cam, headers, slightly larger injectors, and a good tune is this an ok goal or what else would i need to do to get around that.


thanks for the answers on pistons

 

Another camshaft i.e. dohc.

 

your gonna need more then 10.5: comp to get to 175-200. for good d-series info you need to check out some other sites like www.d-series.org cause most people around here frown upon d's especialy n/a d's , but they are my area of expertice

 

You wont get there with 10.5:1.. Not even close... And not with 75mm

Here is a pic of my ARIAS d15 spec pistons..

 

thanks that what i was thinking. what is the site that is all stars. i was thinking of getting custom lengh rods to use 12.5:1 pistons for the d16 have you done this and does it work all right. what is the comp on the ARIAS and it wasnt in the catalog do i need to call them

 

Good info

 

If you are serious, go to One cam only, with no spaces of course

 

If you are interested we can get you setup with a custom set of D15 pistons. We have done custom pistons for that motor in the past and are more than capable of getting you squared away!

Please let me know if there is anything else I can assist you with

Randy@Bisimoto.com

 

the head on my b2 build is milled .060 with pm3 pistons and its about 11.7:1 with a crane 12 cam and the timing is close to 7* on the cam gear 4.75 for the d16 cam on a d15 and 2* for the head mill. rule of thumb is 1* for ever .030 milled off head. ive seen
.110 milled off a non vtec pm3 casting with no issues

 

I wouldn't deal with anyone else but these guys when deciding what to do with a SOHC motor.

 

LOL

Dood, you just made me blush! Hehehe, thanks for the vote of confidence!

 

hey guys i called both ARIAS and Bisimoto and both were able to get me sqared away with pistons and prices thanks for the help on finding options.

now i was wondering with the 12.5:1 pistons how radical of a cam can i go with out fear of hitting the valves is there a formula on piston to valve clearence so i know what my cam can be ground to before i do it.

thanks for all the help again

 

James,

You will likely have to clay the head, Im gonna shoot you a PM