How much of an increase?

stevenf · 12-25-2007, 10:16 AM

When rebuilding any engine, I know that boring does add small boost in HP. How significant are these gains though? Would there be a huge difference if you bord .60 rather then .20
Also, Could you expect 150+hp from a 22r from a big bore, cam, some head work, mabey ported intake, and headers? You guys that have done 22r work and had it tested on a dyno, what were your results?

davenjai · 12-26-2007, 09:01 AM

Boring does little of nothing. Unless the new slugs compensate for it, you lose compression. Now a .200 overbore with high CR slugs? That's another thing. You will get more from airflow then anything. Heads and cams, proper tuning.

stormin94 · 12-26-2007, 09:47 PM

Build a stroker.

4runnerchevy · 12-29-2007, 05:22 PM

Build your stroker, lose your reliability, and a 4.3 will still out due you.

12-25-2007, 10:16 AM	#1 (permalink)
stevenf Registered User Join Date: Dec 2007 Posts: 37	How much of an increase? When rebuilding any engine, I know that boring does add small boost in HP. How significant are these gains though? Would there be a huge difference if you bord .60 rather then .20 Also, Could you expect 150+hp from a 22r from a big bore, cam, some head work, mabey ported intake, and headers? You guys that have done 22r work and had it tested on a dyno, what were your results?

12-26-2007, 09:01 AM	#2 (permalink)
davenjai Registered User Join Date: Jan 2007 Location: Gawja Posts: 176	Boring does little of nothing. Unless the new slugs compensate for it, you lose compression. Now a .200 overbore with high CR slugs? That's another thing. You will get more from airflow then anything. Heads and cams, proper tuning. __________________ 90 Xtra-cab, 3slo and a slush box.

12-26-2007, 09:47 PM	#3 (permalink)
stormin94 Contributing Member Join Date: Jun 2007 Location: Lake County, CA/Sacramento Posts: 3,276	Build a stroker. __________________ 1994 Toyota 4Runner SR5 4X4 208,000 miles and counting 3.0 V6, 5 speed 14/19 MPG city/hwy(before 33's) Current Mods Headers, 2.5" Flowmaster custom exhaust, K&N FIPK KC Daylighter 100 Watt lights Ranchos x4, 2" Lift Downey coils 33-12.50 M/T's, 1" t-bar lift, 1" body lift Tow pkg w/ lighthookups Silverstar Headlights, Pioneer Deck w/XM Brushguard 250Watt JLAudio 8" W3 Sub Future Mods 12V Aux outlet-400/800peak inverter roof basket/lights Air locker 4.88 gears H.O. Alternator

12-29-2007, 05:22 PM	#4 (permalink)
4runnerchevy Banned Join Date: Jun 2007 Location: Santa Cruz Posts: 125	Stroker Build your stroker, lose your reliability, and a 4.3 will still out due you.

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