Is boring cylinders .020 going to make any kind of performance increase?

dont you have to do this because of diffrent pistions??? i vote it will make a slight but not much

97 Rs 5sp
-Intake
-Front upper strut bar
-Tint 20% o yeah
-Coilovers/KYB ADJ
-60mm TB
-P&P intake mani
-Cat Back System.
-Funny Rims?? dont lie
~likestofloorit.. (1/4=16.258)(60=2.363)

not really might increase displacement a bit but the main reason you overbore your cylinders is to make sure they're round.

http://www.hadesomega.info -car specz and movies 95 Eclipse RS | 76' 280Z | 89' MR2 | 99 Neon | 91 Zephyr
Who sez FF can't drift?

if you planned on having your cylinders bored, make sure that the machine shop uses a boring plate to make sure that the block its bored round...I have seen too many motors have blowby because the cylinders are out of round after the headbolts are torqued.

1997 Eclipse GS
AEM CAI
Apex'i N1 Catback
Greddy Header
5% window tint
Front-Rear-Lower Rear STB's
Yellow Painted Calipers
1st gen altezzas with original painted center piece
Soon-Tokico Illum's or Blues

Yeah really done to ensure roundess of cylinder, you will need new pistons and rings. The increase in displacement is minimal.

If you want to get picky a torque plate should be used on the head bolts and tranny bolts, both will distort the block under torqueing of the bolts.



15.9 @ 86.7mph
97 Eclipse RS

Injen CAI, 55mm TB, P&P Intake, Crower Stage 2 Cams, Hooker Header, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC