After asking and reading a lot about the elantra beta engine, the difference between 1.8L and 2.0L engine are the connecting rods, do a comparison the 2.0L connecting rods are 8.5mm more larger than the 1.8L this are the only difference.

maybe im right or wrong...

 

only the rods are different...
crank shaft is different (less stroke)
pistons are different (head shape)
intake camshaft is different (more lift & duration

but i can't comment on the rod yet

Denis

 

Isn't the Block bigger to make it a 2.0 from the 1.8 and what HP did the 1.8 Make....

 

I dont know about the block, but they use the same head.
oh! I belief that only changing the rods can make my 1.8L to 2.0L, I mean more compression and faster... rolleyes.gif

Well in this case I´ll only swap the 1.6L beta transmission to my 1.8L beta, I know a guy that did this swap and he told me: the ratio are shorter, accelerate more faster. eek!

 

Well let me ask this my car has the 1.8 too, and if I do the same will i get a 2.0....and also are our engines similar or made by hyundai or kia. or is urs the Mazda built 1.8?

 

As dennis stated. The Rods, crank, and pistions are different.

Just switching to 2.0L rods would not gain you anything. The difference in displacement is in the stroke..and the stroke is in the crank.

Switching to a 2.0L crank would give you the missing stroke.

It is the exact same block for the 1.8L and 2.0L The difference is 88mm stroke for the 1.8L and a 93.5mm stroke for the 2.0L.

The 1.8L has "domed" pistions to keep the Compression ratio up with the decrease in stroke.

SO if you increase the stroke, you also need to swap to the 2.0L pistions. the 1.8L pistions would hit the head, or valves.

To keep the crank and pistons in line, you need to switch to the shorter 2.0L rods, or again, the pistion would hit the head.

For the 10 HP increase, it's not worth replacing rods, pistions, and crank.

 

I see you have a point...Thanks for the info and clearing that up..