I heard somewhere that you can resleeve a B16A to 84.5 mm to get 1.9 liters I am assuming that this does not change the 1.74 R/S ratio right? Now after the resleeve I need to open up the combustion chamber to 84.5 also and that should be it. If any other Major machine work is need please let me know as I am considering this insted of building up a B20

Thanks Everybody

BTW has anyone here done this and what do you think of this setup

 

b16a sleeved to 86mm bore w/ b17a crank will give 1.9 liters.

a 84.5mm b16a will be about the same displacement as a LS motor.

 

resleeved to 86 mm w/ b17a crank what kind of r/s ratio would I have with this setup

BTW thanks for the info mike k

 

a little lower than 1.75. if iam right.

 

i thought it would have the same displacement as a b20..someone correct me if i'm wrong..

 

b17a 81mm stroke 81mm bore
b20 89mmstroke 84mm bore.

 

ok maybe no one has the r/s ratio or they do either way with golden eagle sleeves it should hold up to 9500-1000and I can find out later. Now is there anyone here that has actually done this and can give me a impression of how it performs #'s wise hp/torgue

Thanks guys

 

the one point that you brought up about opening up the combustion chambers to match the 84.5mm bore is kind of a toss up. I have heard from reputable engine builders that it doesnt make a huge difference. When you buy a custom piston the ask you for the cc's of the head so there is no problem with any sort of contact. I guess its up to your disrestion wether you want to open up the bowls or not.

 

You are correct, changing the bore doesn't mess with the stroke or the R/S ratio.

Leave the B16 Crank in the engine and just sleave and bore to 86mm.

84.5 bore will only give you 1.75L
86mm bore will give you a 1.79L

If you want higher you are going to have to stroke it and change the R/S ratio.

Edit: If you want a 1.9 by just resleeving then you will have to bore to an impossible 88.5mm and that will actually only give you 1.89L
I would get the combustion chanber opened as well cause that is more air that can be put into your engine.


[Modified by Spade, 3:00 PM 12/6/2001]

 

I think a B17 has about 1.63:1 r/s, not too bad better than a GSR but worse than a B16, it'll still rev hard tho

 

is it still impossible to bore it to 88.5mm even when you resleave it w/ thicker sleaves? thanks

 

I would assume that this is immpossible (88.5mm bore) Its even going to be hard to get 86mm pistons unless they are custom made which is too much $$$ to even consider. So I guess that now i'm back to thinking about a B20 bottom end. Damn just when I thought there might be some hope to get torque out of a B16 bottom end.

BTW what would a B17a crank w/ 84.5 mm pistons get me in terms of displacement.

 

I believe that it brings you up to 1.79L.....you can do a stroke kit on the B16 block but, what the hell is the point......in the long run it is cheaper to build a CRVTEC.
You can have the Torque right away and over time build the VTEC. So right away you have a decent machine........I am still struggling between the CRVTEC and a Turbo......HA neither NOS......ah hell, I am never gonna make up my mind....oh I know CRVTEC/Turbo with a 150 Shot!!!! ROFL...this sucks.

 

I was actually considering doing something similar to this. I was going to use a CTR block and sleeve and bore it to 86mm. This way you could get an awesome 1.83 r/s ratio and get close to 1.8L. If you wanted to get really trick, you could get some pistons with the wrist pins moved up a couple mm (since your already getting custom pistons this shouldn't cost anymore) and get some rods that are a couple mm also. After that you'd have some pretty good torque, oil squirters and an engine that would love to rev. Probably could take it up to 10K no problem with a properly built head and cams.

 

85mm and 86mm are not really "custom" pistons.
I have Endyn Rollerwaves in stock in both of those bore sizes, two different dome styles. YES, you MUST open the chamber to a minimum of 84mm when using these pistons, otherwise there is a small possibility of dome to head contact.

For the record, my friend has the 86mm 12:1 in a sleeved GSR block. B18C5 head, Toda Spec A cams, Mugen 4-1 header. In a 1996 Civic EX. That thing MOVES.

 

ok, if i was to sleeve a b16a to 85mm or 86mm, which rollerwaves would be recommended, the b20 ones or the vtec conversions ones..and could u use the 87mm from the h22 if u wanted to sleeve to 87mm..

 

http://www.crvtec.com read what there opinions are about boring.....of course it is going to always point you to a B20 but....there is good opinions there.

You are going to need Iron Ductile Sleaves for it even if you want to go to 84mm

 

Tom payn at payn technologies is making a 2.5 liter b20 and its a cast. Can't wait till that beast is released!!