use the search button, this topic has been extensively discussed. in summary though, you can put 18de head on 20e block, but you have to either a) shave the block which puts you back to a 1.8liter or b) custom timing beltSixways said:I've heard that you can mate a CA20 block with a ca16/8DE head. What would you need to do this? i have the computer for the ca18de witch I assume will help alot.
yes, if you shave the 20 block you'd still have a bigger bore...but why go through the trouble? just bore out a 18 for the same effect. And i suppose some of our old threads about CA20DE could have "disapeared" cause they're kinda old by now. The stock timing belt won't work cause the 2 liter was single overhead cam as opposed to the dohc have two cams..obviously. So the 2 liter belt isn't long enough for that, and the ca18 had shorter block so that timing belt is a hair short. And the 2 liter didn't have the idler pulley which you'd want to have. You can tap the block though for the idler. And for the belt you just have to find something thats the right size....i've never researched the belt, that was something i was going to do when i got to it.Sixways said:I did look around a bit but I couldn't find anything dinitive. I heard some people say that you can shave the block and use the ca18 rods and you'll still have the same desplacement. I don't know the specs on the ca20 block but it would seem that if the boer was bigger and the crank still had a longer storke that it'd be a bigger motor? I've also herd that you can use the stoke timing blet but it will retard or afvance your timing a bit.
shaving the block would bring you back down the the 1.8 liter stroke, unless you used the 2 liter crank with a short con rod. You'd still get the benefits, but getting a conrod could be hard for that. If you can do it great, theres nothign wrong with itSixways said:Wow, I sounded retarded in that last post. oh well that's what i get for not sleeping lol. Anyways, would it be worth the time to shave it enough to get the dohc belt to fit?
i didn't like 10000 either....i kept playing around for a few hours on cam profile and got peak horse down between 7500 - 8000 with 10 and 20 psi.Sixways said:At 10,000 rpm? I don't think that the motor would support that kind of rev limit, esecaly under boost. What makes the ca18 make more power? It just dosn't make sence that it would have a better power capacity but not still be in production.
the new se-r 's have the 2.5 which is weak trust me. I've driven a few se-r's and spec v's ...they didn't impress me much. The Altima SE-R on the other hand!!Sixways said:i don't much care for the head design. Just the way they set up the valves with the cam straigt on top it sorta wierd. How do you adjust the vale lash? It's just weird to me, I like the honda design more. Too dab i don't have an ass load of money, I'd make a CA20DE with a 12000rpm red line and 500lt-lbs It'd slay any honda or Volkwagon
the se-r might have an SR but I don't think so.