| Go back to previous topic | | Forum name | Performance/Engine | | Topic subject | high compression pistons | | Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=70564 |
70564, high compression pistons
Posted by Pyroman415, Mar-13-04 09:08 AM
Ive been thinking about putting high compression pistons into my car and possibly boring out the engine to about a 2.2 or 2.3 liter. If i were to just put in new pistons what else would i have to do? What kind of performance can i expect? If I would also bore out the engine would it be worth it and what all would i have to do for boring and high compression pistons?
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70565, RE: high compression pistons
Posted by a_miller_76, Mar-13-04 09:27 AM
4% gain in hp per point of compression. So if you go from 9.6 to 10.6 then you'd gain like 5.6 hp.
On a side note, you can't bore out the 420a to 2.2 or 2.3. You can stroke it close to 2.2.
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