OK guys…now that I need to decide on what motor is ogin ginto my car next I need to explore the options in upgrading the F20A motor. I do not want to swap a motor in with stock internals, whatever motor I swap in is going to be torn down and built up. So if anyone knows of internal upgrades (pistons & rods especially) please post here. I've searched on several forums and still haven't found much.
If I can't find any upgrades for the F20A I might just have to stick to the F22A1.
Oh and for those who don’t know the specs of the F20A they are below…..
___________________________________
F20A (DOHC) '90-'93 Accord 2.0Si Japan
1997cc
F20A DOHC non-VTEC--obd I/F20B SOHC non-VTEC--obd II
150hp@6100rpm
137tq@5000rpm
~6800rpm redline
9.5:1 compression ratio
85.0mm bore x 88.0mm stroke
closed deck and no LSD
These motors are similar in size to the F20B DOHC VTEC motor, but that comparison stops there. While the twin cam F20B is a destroked h22a, the single cam F20B and twin cam f20a are much more similar to the USDM f22's in our accords. They were designed to make more power/torque a little lower in the powerband while remaining simple in design and modest in potential in stock form. They run higher compression pistons than do our f22's, but the single cam f20b has a head similar to 94+ USDM f22b non-vtec while the f20a has a twin cam head similar to our h23 from the preludes. These motors are usually much easier to obtain and much cheaper
--------------------------------------------------------------------------------------------------
If I can't find any upgrades for the F20A I might just have to stick to the F22A1.
Oh and for those who don’t know the specs of the F20A they are below…..
___________________________________
F20A (DOHC) '90-'93 Accord 2.0Si Japan
1997cc
F20A DOHC non-VTEC--obd I/F20B SOHC non-VTEC--obd II
150hp@6100rpm
137tq@5000rpm
~6800rpm redline
9.5:1 compression ratio
85.0mm bore x 88.0mm stroke
closed deck and no LSD
These motors are similar in size to the F20B DOHC VTEC motor, but that comparison stops there. While the twin cam F20B is a destroked h22a, the single cam F20B and twin cam f20a are much more similar to the USDM f22's in our accords. They were designed to make more power/torque a little lower in the powerband while remaining simple in design and modest in potential in stock form. They run higher compression pistons than do our f22's, but the single cam f20b has a head similar to 94+ USDM f22b non-vtec while the f20a has a twin cam head similar to our h23 from the preludes. These motors are usually much easier to obtain and much cheaper
--------------------------------------------------------------------------------------------------