high compression pistons in a 2.2
11-29-2009, 01:52 PM
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high compression pistons in a 2.2
OK so on the 2.2l with full bolt ons and stage 2 cams, how much would there be to gain by going to a higher compression piston? I have all boltons including 2.4 mani and cams are going to be on the way soon and im trying to figure out what to do after the cams.
11-29-2009, 05:10 PM
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Oh really do tell? Im curious for a mod list...
11-29-2009, 06:10 PM
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What high compression pistons? I was aware the highest was 10.1:1 which is stock compression.
http://www.turbotechracing.com/produ...dcategory=5616
http://www.turbotechracing.com/produ...dcategory=5616
Last edited by Enuff_Said; 11-29-2009 at 06:12 PM. Reason: Automerged Doublepost
11-29-2009, 08:27 PM
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11-30-2009, 02:58 PM
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Just some stuff to think about if really wanting to go all out
11-30-2009, 03:04 PM
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What high compression pistons? I was aware the highest was 10.1:1 which is stock compression.
http://www.turbotechracing.com/produ...dcategory=5616
http://www.turbotechracing.com/produ...dcategory=5616
12-18-2009, 07:09 PM
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If you talk to the right person at brand "W" customs of any Comp. you want would be around $135 each. Add $12 per piston for coating"s. This is the only Piston country that manufactures there own forging's in house. These will be of the highest quality light weight forgings.
You can try brand "J" but he forging's come from brand ********.
Or go the CP route also a very high end company but they get there forgings from somewere else.
I am not afilleiated with any of these companies but am on the inside of what they all do and were manufacturing takes place.
I would not recomend Diamond, Older technology and ring land flatness is a joke. This is critical to ring seal.
You can try brand "J" but he forging's come from brand ********.
Or go the CP route also a very high end company but they get there forgings from somewere else.
I am not afilleiated with any of these companies but am on the inside of what they all do and were manufacturing takes place.
I would not recomend Diamond, Older technology and ring land flatness is a joke. This is critical to ring seal.
12-28-2009, 06:23 PM
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The better the rods you are using you can tighten up the squish a little more.
Gaskets are available custom thickness and material almost overnight by Cometic.
I would go the thin Gasket route before I made a irreversable change like milling the head.
12-29-2009, 09:55 AM
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If you talk to the right person at brand "W" customs of any Comp. you want would be around $135 each. Add $12 per piston for coating"s. This is the only Piston country that manufactures there own forging's in house. These will be of the highest quality light weight forgings.
You can try brand "J" but he forging's come from brand ********.
Or go the CP route also a very high end company but they get there forgings from somewere else.
I am not afilleiated with any of these companies but am on the inside of what they all do and were manufacturing takes place.
I would not recomend Diamond, Older technology and ring land flatness is a joke. This is critical to ring seal.
You can try brand "J" but he forging's come from brand ********.
Or go the CP route also a very high end company but they get there forgings from somewere else.
I am not afilleiated with any of these companies but am on the inside of what they all do and were manufacturing takes place.
I would not recomend Diamond, Older technology and ring land flatness is a joke. This is critical to ring seal.
Do you know if "W" could do a "stronger" forging for high output/rev N/A use... more like an X forging like CP uses than a simple slipper one.
I know they do some for other brands and motorcycle pistons, would be awesome if we could have these for the Eco (even if not so many of us have these application).
I'm happy with my 10:1 Wisecos, especially for the price, and they are taking 8500+ rpm on circuit racing. Only issue were the pins which were a joke (impacts and tolerances), but had some DLC ones custom made.
12-30-2009, 10:29 AM
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Do you know if "W" could do a "stronger" forging for high output/rev N/A use... more like an X forging like CP uses than a simple slipper one.
I know they do some for other brands and motorcycle pistons, would be awesome if we could have these for the Eco (even if not so many of us have these application).
I'm happy with my 10:1 Wisecos, especially for the price, and they are taking 8500+ rpm on circuit racing. Only issue were the pins which were a joke (impacts and tolerances), but had some DLC ones custom made.
I know they do some for other brands and motorcycle pistons, would be awesome if we could have these for the Eco (even if not so many of us have these application).
I'm happy with my 10:1 Wisecos, especially for the price, and they are taking 8500+ rpm on circuit racing. Only issue were the pins which were a joke (impacts and tolerances), but had some DLC ones custom made.
DLC coating the pins is the best idea also, every Factory team does this no matter what piston brand.,
CP copied me through by obtaining a test sample from a factory team S/X, M/X, no wonder said team would not sighn paperwork to keep what there findings were.
For the M/X bikes the "R" series boxed and struted is Unobtanioum.
No I am no longer affiliated with any Piston company at this time.
Sorry couldn't help my self from corrercting.
It is WISECO.
Original owner Clyde Wiseman. a Real Burt Monro type of guy.
The have been around since 1946 when Clyde was racing small Hydro planes and making his own pistons in his garage.
Last edited by wiseguy; 12-30-2009 at 10:29 AM. Reason: Automerged Doublepost
12-30-2009, 10:37 AM
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Im running 10.5:1 in my 2.0 (stock is 9.5:1) And I have a pretty noticeable difference in power over stock. If you are going for an N/A build It certainly wouldnt be a bad Idea. You will notice a worthwhile gain with the higher compression, and forged pistons are never a bad idea.
12-30-2009, 10:53 AM
#18
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Depends on what fuel you are running and what kind of tune you are going to put on it. Also, having a ported and poslished head would help as well as getting new rods. I am not sure where the best compression ratio/timing advance cut off is on the 2.2L. Of course if you are going to tune for and run 93 octane then you can go to a higher compression ratio without sacrificing as much timing. I probably wouldn't up the compression ratio very much if you aren't changing the rods. If you get some forged rods, or at least better than stock rods, I don't see any reason you couldn't get 12.5:1 or higher pistons and get a good increase out of them, as long as you tune for them.
12-30-2009, 11:30 AM
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dual spring, seat, retainer, delete shaft
you ll good for 8200 rpm and your cam stg2 will get better on top end.
stg 2 cam + springs = better output
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