anything better about B20b over B18b besides it is a 2 liter?

[Phatwhippin_CRX]

Then by all means my friend, go B20 for now, surprise some people, then tear it up once you build your CRVTEC.




B18c1

[JUNintegra]

The advantage's of a B20 over a B18 is that obviously ther is more displacement, and more torque, but that's about as far as the advantages go. The downside is that the B20's and B18B's WERE NOT meant to be high performance engines. On all DOHC VTEC blocks are little "squirters" which lubricate the underside of the pistons (which is very nescessary when your at 8000 rpm). The DOHC VTEC blocks are overall just built ALOT stronger from factory. Another thing is that when your doing a VTEC conversion you are basically leaving your reliablity up to the mechanic so it's esentially the shops mechanics vs Honda engineers (whne using a B18C), and i pesonally trust NO ONE more than the engineers at Honda. If you still want to do a B20/VTEC be prepared to run into MANY reliability problem. Nothing beats Japanese Engineering .

[email protected]

[94tegRS]

alls I have to say is WHAT???
I know (well, I think I know) that when you change form regular head to a vtec head, you need to plug the oil supply to the head and you run the new line from a plug in the block or something like that, and if I am not wropng, the underside of the piston would be connected to the connecting rod, which is already oiled by like 4 quyarts that are in your oil pan, if normal non vtec engines didnt get oil there, they wouldnt even last more than a mile. what do you mean by the underside of the piston?
and I am sure if you know what you are doing, you could build one that is very reliable.

[Moppie]

The DOHC VTEC engines have Oil squiters in the base of the block the spray oil directly onto the bottom of the piston and bore. This provides extra lubrication, since it was determined by the Honda enginers that oil splashed up off the crank was not enough.

By doing a B20/VTEC you still have to run the high rpm to make the hp, but you dont have extra lubrication from the oil squiters.

A B20/VTEC is a great project for someone with lots of money and eginering skill, who can spend the time developing it properly. For someone with your clear lack of experiance and understanding it will be a nightmare, and totaly failure.

Keep it simple and go with a B18c, or simply Turbo your current engine.
You will get simlar performance as a B20VTEC, but with out all the reliablity and build issues.

[94tegRS]

is the oil squirter timed or anything? like does it onoly squirt oil at a certain time when the piston is at like TDC or some certain position only or is it delivering oil at like a steady flow, like can you run a pressured oil line into a spot on te block and tap a hole on each cylinder and run the line into that?