My motor has began to smoke extremely bad while in Vtec, and smells like it is burning oil so I have been thinking about rebuilding the motor. I had planned all stock parts, but I intend now to bore the motor to a 2.0

My and my friend were talking, and he says that I need to sleeve the block if I'm going to add forged pistons, and I found a set of Endyne rollerwaves that I am trying to get. Unless I'm mistaken, is 84.5mm the right bore for a 2.0?

Also, I'm curious to know what else will be needed? Like, for instance, will I need new rods? The pistons are supposed to make 12.7:1 compression with a gsr head, so will that be ok compression with a stock compression head gasket and 93 octane gas?

If anyone can answer these questions, I would really appreciate it.

Thanks, Zach.

 

that c/r is a little high for just 93 octane. if you are planning on that high of a c/r i would definately sleeve the block. i would also go with some crower/eagle rods. that is a pretty high c/r, so you're gonna want a stout bottom end! good luck with the rebuild. oh, and you don't need to sleeve the block for the forged pistons, you would want to do it for boring to 2.0l because you are removing material from the cylinder walls.

 

what kinda engine are you rebuilding?? from what ive read. if u r goin higher than 82mm bore. youll have to start worryin about block crackin issues. so for 84.5 you should sleeve.

 

wut motor do you have b-series to 2.0 without sleeving.... i dont know if this is accurate or not but the h22 stock has some special material sleeve that wont work with forged pistons but forged piston can be used on b-seires sleeves? im not too sure someone correct me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zad5 &raquo;</TD></TR><TR><TD CLASS="quote">wut motor do you have b-series to 2.0 without sleeving.... i dont know if this is accurate or not but the h22 stock has some special material sleeve that wont work with forged pistons but forged piston can be used on b-seires sleeves? im not too sure someone correct me.</TD></TR></TABLE>

The motor I am rebuilding is a 1994 b18c1. The reason that we couldn't figure it out is because he has an H23/vtec motor in his prelude, and he said that you can't add forged pistons to the prelude without sleeving and we wanted to know if I could find some info on it.

Is there a head gasket that can lower my compression back down some? I don't really want it to be that high, but the price is too good to pass up.

 

well my forged pistons werk fine in my b18c1. but if u r going to go with 84.5mm bore. i dont think u can get away without adding aftermarket sleeves.

u could try greedy or someone else who sells alot of turbo stuff. and see if they make a thicker gasket for lowering c/r.

 

So, to make this clear, will a 84.5 mm bore put me at 2.0 liters of displacement or more? This is all I want t0o be sure of.

Finding the headgasket isn't going to be a problem, I just need to know if I am right about the displacement. The motor will be getting sleeves too just to make sure.

 

84MM = B20

just get a b20 bore it to 84.5 put a vtec head on and be happy!

 

ok here is the low down, If you want to go 2.0l on the B18C you will have to sleeve it no matter what in order to bore the block to 84.5. This will give you a 2.0l(1.95 if you want to be exact) (a stock B18c block is 1.79) how ever, your friend with the prelude is right about putting forged pistons in HIS block(h-series) you have to sleeve the h block because of the material Honda uses doesn't coincide with the material of a forged piston. This is Untrue for the B-Series blocks. You can use forged pistons with out any problems up to 82mm with out having to sleeve the block but once you go past that then you will need to sleeve it for strength issues. as for the compression, I would go 11.5:1 if you would like to use pump gas all day without any issues, with the right tuning it should not be a problem. You can find a nice set of Aries, wiseco's, or JE's with the right compression and not have to spend lots of money. You can put the forged pistons on stock rods if you like, but since your in there I would just put in rods as well so you have nothing to worry about. I hope this helps you out a little.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RedZone &raquo;</TD></TR><TR><TD CLASS="quote">ok here is the low down, If you want to go 2.0l on the B18C you will have to sleeve it no matter what in order to bore the block to 84.5. This will give you a 2.0l(1.95 if you want to be exact) (a stock B18c block is 1.79) how ever, your friend with the prelude is right about putting forged pistons in HIS block(h-series) you have to sleeve the h block because of the material Honda uses doesn't coincide with the material of a forged piston. This is Untrue for the B-Series blocks. You can use forged pistons with out any problems up to 82mm with out having to sleeve the block but once you go past that then you will need to sleeve it for strength issues. as for the compression, I would go 11.5:1 if you would like to use pump gas all day without any issues, with the right tuning it should not be a problem. You can find a nice set of Aries, wiseco's, or JE's with the right compression and not have to spend lots of money. You can put the forged pistons on stock rods if you like, but since your in there I would just put in rods as well so you have nothing to worry about. I hope this helps you out a little..... </TD></TR></TABLE>

Thanks for the help. I e-mailed you guys on some pricing for some pistons and rods.

 

sent you one back, let me know what you think