I want to go as hight as there is available out there. Please someone let me know.

 

Go to the airport, I'm sure there's a plane leaving shortly that'll take you as high as you wanna go. If it's insanely high compression pistons you're looking for, you'll still need that plane to see them after you blow your engine "sky high".

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00Red_SiR &raquo;</TD></TR><TR><TD CLASS="quote">Go to the airport, I'm sure there's a plane leaving shortly that'll take you as high as you wanna go. If it's insanely high compression pistons you're looking for, you'll still need that plane to see them after you blow your engine "sky high". </TD></TR></TABLE>

Thanks, Clowny, I don't need your stupid comment, I'm asking for suggestion only, but thanks again. BTW I do know what I'm doing.

Please no more cute comment, Thanks everyone.

 

Try contacting Bisimoto or Wiesco. I think Bisi has some custom pistons that are around 17:1

 

whoooooohoooo, that's what I'm talking about!!! well, I guess in that case I will chicken out and check out around about 14.5:1. ****, that'll sound like a jet flying by, damn. thanks a lot. appreciated.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec4max &raquo;</TD></TR><TR><TD CLASS="quote">

Thanks, Clowny, I don't need your stupid comment, I'm asking for suggestion only, but thanks again. BTW I do know what I'm doing.

Please no more cute comment, Thanks everyone.</TD></TR></TABLE>

If you really do "know what you're doing" explain to me/the rest of us why you want an "EXTREEMLY HIGH compression piston" and yet for some reason you don't seem to have a clue as to what you really need or want?

People who know what they're doing don't ask questions like this because they know what compression they need from the careful planning they did before their build. They will also not ask this question because they know that any of the piston manufacturers can make whatever compression they need for their build, so asking here is like blatantly saying " I don't have any clue as to what I'm doing".

My sarcasm is simply a reflection of my own and others frustration in the decline of this forum due to the increase of posts like this.

 

The best way to make compression isnt with the piston alone, huge peak domes arent that great for making power. Minumize combustion chamber volume, minumize piston to deck clearance (make sure to keep the needed piston to head clearance where needed).

Heres an example:






We did this piston for our current project, were getting 13.4:1 compression with a relatively small dome.

 

check out AllMotorRandy's pistons in this thread i made in the prelude forum.

https://honda-tech.com/zerothread?id=2060612

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00Red_SiR &raquo;</TD></TR><TR><TD CLASS="quote">Go to the airport, I'm sure there's a plane leaving shortly that'll take you as high as you wanna go. If it's insanely high compression pistons you're looking for, you'll still need that plane to see them after you blow your engine "sky high". </TD></TR></TABLE>

Sigh..... ******* Canadians!!

Eric

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bluedlude &raquo;</TD></TR><TR><TD CLASS="quote">check out AllMotorRandy's pistons in this thread i made in the prelude forum.

https://honda-tech.com/zerothread?id=2060612 </TD></TR></TABLE>

380 grams?? Those are boat anchors

Ive talked to Randy about those pistons, they are a little heavy IMO but the flame notch is nice.

The pistons I posted above are 89mm and weigh in at 280 grams with out much done to them

 

im no expert, what are those pistons for K series?

and i was just trying to show him what an extremely high compression piston looks like. might sway his decision.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bluedlude &raquo;</TD></TR><TR><TD CLASS="quote">what are those pistons for K series?
</TD></TR></TABLE>

Yes sir

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bluedlude &raquo;</TD></TR><TR><TD CLASS="quote">im no expert, what are those pistons for K series?

and i was just trying to show him what an extremely high compression piston looks like. might sway his decision.
</TD></TR></TABLE>


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hardt &raquo;</TD></TR><TR><TD CLASS="quote">

Yes sir
</TD></TR></TABLE>


says the man who speaks of putting f20c pistons on f22 rods in an h22

 

wha the hell are you talking about?

 

There is a lot of power in piston design: dome shape, valve relief shapes/contours, skirt design, ring placement, pin location, coatings, etc.

Bisimoto custom pistons by Arias are a result of over 9 years of testing, cutting up, retesting, and documentation. How does less than 260 grams sound in a 90mm bore? Just an example.

As stated earlier, high domes can hinder power by interfering with flame propagation, however, there are other techniques with dome design that can give your excellent static compression numbers, without the need for huge strokes, or domes.

BTW, high compression numbers are not the be all end all. I ran 18.4:1 in my D series, and currently run 17:1 on my F engines. Your powerplant MUST be complimented with the proper camshaft for ideal dynamic outcomes.

 

The man knows his stuff 10 times over.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rainmanEK &raquo;</TD></TR><TR><TD CLASS="quote">

Sigh..... ******* Canadians!!

Eric
</TD></TR></TABLE>

X2

everyone here see that I'm trying to be a nice guy, them fXcking! canadian punk *** just don't know when to just let it go. CANADIAN!!! expletive OFF!!!! U FOOL!!!

lots of good info thanks, guys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bisimoto &raquo;</TD></TR><TR><TD CLASS="quote">How does less than 260 grams sound in a 90mm bore? Just an example</TD></TR></TABLE>

When your starting with a heavy round forging, thats a lot of internal milling, super thin crown, etc.

When you start with a strutted or box/box forging you can get 89-90mm pistons down to 230-240 grams and still have a fairly stable piston. You can go even further (200-220) with a .080 crown if you dont mind changing pistons every 50 passes or so.

Ive been waiting for years for Arias to step up to a strutted or slipper forging. They are the only company out of the big 5 (wiseco, JE, Ross, CP, Arias) that hasnt done so yet.

Make it happen Bisi/Tom

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rainmanEK &raquo;</TD></TR><TR><TD CLASS="quote">

Sigh..... ******* Canadians!!

Eric
</TD></TR></TABLE>


wow...now that statement made a lot of sense...


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec4max &raquo;</TD></TR><TR><TD CLASS="quote">

X2

everyone here see that I'm trying to be a nice guy, them fXcking! canadian punk *** just don't know when to just let it go. CANADIAN!!! expletive OFF!!!! U FOOL!!!

lots of good info thanks, guys</TD></TR></TABLE>


as long as you learn something from this post, I'm happy. As for being Canadian, I had no idea that living here influenced my individual ability to tell the difference between a stupid question and a good one.

 

dude, just give me a break, ok. my question doesn't sound smart to you but it's ok. I prefer to sit back and look stupid. Now give it up, caus I did from the start already. now have a nice day. thanks

 

FWIW I'd rather be from canada than ricerville. You should be mayor of the town.

 

I'm the mayor, president, pimp yo mama, and BOSS!!!!!!!!

 

Good for you, I would try Venolia, they will make whay you want. Oops, forgot about Probe.