new to this

[grk325]

Bigger pistons, bigger valves, ported head, hotter cam, individual throttle body setup, MAF/Stand alone engine management.


as one has stated above before..i would like to know where i can purchase the parts....id like to know the cost...

but even more i would like to know how big of a piston size i should go..bigger than 87mm, woudl it be over kill?? and to fit a bigger piston i pust bore out the block...correct term..
how big of valve should i go before its considered over kill...
when you port out your head what is the biggest you can go?
hotter cam???
how much would individual throttle body setup cost me and where can i purchase it...


yea im a newbie to this ..


my intenions for the motor will be to turbo it...i already have a set up..

id like to get the best out ot it...sane level i guess you can say


thaks in advance

[Jordan]

So you are going to make a built N/A oriented motor, THEN turbo it?

Ignorant about sums that up I think.

[decay]

*nod* if turboing is your plan, the extent of what you really _need_ to do to your motor is replace the head gasket and put in some ARP head studs. a good stiff clutch wouldn't be a bad idea either.

the only reason you should spend money building up a forged stroker engine is if you're planning on running over a bar of boost, and have fun driving that on the street...

[e9nine]

..what they are saying is plan it right. Hight compression motors don't like boost. It's a case of either or; not both :D

Also note that getting a modded m20 to run mint is not the easiest task on earth, neither is it the cheapest. Slap and tune doesn't work on m20s. M20 specific tuning is the key, talk to the pros!

[diegom6]

avoid using more than 9.0:1 CR for Turbo engines, if you get pistons for your engine, get customs low compression , make some calcs (dunno how to do it) and try to get 8.2:1 CR or so, then you can boost more and make more power!

Boost=likes low CR
Boost= Deslike hot cams
Boost= would love standalone system but can live with the stock ECU and some tricky parts for better results.

Boost= likes lot of fuel and retard advance above of 8 PSI

[grk325]

ok answer me this then...


what is the impact of bore and stroke ratio on an engine, specifcally with a turbo engine.

If i stroke the engine can i make up the gained compression of stroking it in the piston and\or porting the combustion chamber?

[diegom6]

ok answer me this then...


what is the impact of bore and stroke ratio on an engine, specifcally with a turbo engine.

If i stroke the engine can i make up the gained compression of stroking it in the piston and\or porting the combustion chamber?

to stroke your m20 and then turbo it, you should ask at "matt325is" find that name in the search...he did his 2.8L Stroker low compression Turbo. I don't know much about stroking hte m20 yet

[decay]

ok answer me this then...

what is the impact of bore and stroke ratio on an engine, specifcally with a turbo engine.

more relevant is the rod length:stroke ratio, which makes an engine less viable for turbocharging use as it decreases.

i remember figuring out that the m20b25 is right around 1.74:1, which is pretty damned optimal. i may go with a super-eta block sometime after i've turbo'd my car, IF i decide that 10psi is enough; but i doubt it- most of the m20t guys with T3's or T4/T3 hybrids don't seem to complain about waiting for them to spool.

If i stroke the engine can i make up the gained compression of stroking it in the piston and\or porting the combustion chamber?

how do you figure you'll gain compression by stroking? if you want to use the i rods w/ the eta crank, i'm pretty sure you'd need custom pistons, that's a lot of material to remove...

[grk325]

i thought that it would

good to know that it wont