Debating on going 2.0liter with my B18C5 when I decide to rebuild. I'll be running a mild top end consisting of my current Skunk II stage one cams. Tuning via hondata. What I'm looking for is dyno graphs comparing similar setups in terms of cams/headwork and compression with only major difference being the larger bore. Trying to decide if the .2 liters of displacement really makes the difference for the price. Thanks in advance.

 

I take it that there is no difference between the two then .

 

Uhhhh can you even bore a gsr to a 2L? I thought the way people did that was a stroker kit. You might see a difference in hp, but youll mainly feel more torque. I say dont do it to your type r engine, either keep it 1.8 and up the comp. or sell the engine and build up a b20/vtec if you really want 2L. Stroker kits are really expensive.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PUSHER &raquo;</TD></TR><TR><TD CLASS="quote">Uhhhh can you even bore a gsr to a 2L? I thought the way people did that was a stroker kit. You might see a difference in hp, but youll mainly feel more torque. I say dont do it to your type r engine, either keep it 1.8 and up the comp. or sell the engine and build up a b20/vtec if you really want 2L. Stroker kits are really expensive.</TD></TR></TABLE>

Yes I'm talking about boring the engine to 2.0liters after it has been resleeved, which is far superior to just building a B20vtec with the stock sleeves.

 

yes you CAN bore a b18c to 2.0 with 84.5mm pistons. id say get some aftermarket 85mm sleeves, 85mm slugs, forged rods and acl bearings. difference is very marginal from 1.8-2.0. (my pans for winter..)
id say, thoeretically, an b18c making 200whp w/ 1.8 liters would make 230ish whp @ 2.0.(same mods). and torque also moves up about 20-30 lbs and arrives at an earlier rpm
hope this helps

 

http://www.importreview.com

TONS of 1.8L and 2.0L dyno's there.

 

One advantage of going with a bigger bore (84/85/86mm) is that you can get a much higher compression ratio. Then you can take advantage of big cams. On the same setup, with the only difference being 0.2 liters of displacement, the power gain would be small, but measurable.

 

torque is the main difference between the two, and a difference you will feel mostly under 7000 rpm.

2 liter is a badass setup but it sure can cost a lot...

 

totally agree. BIG COMP = BIG CAMS =
and bragging rights don't hurt either

 

Well first off he is talking about an ITR motor not GSR. Not that it maters, but it's right there in the post.

Bigger bore allows you to run high compression as B19 said. Not going to find many high comp 81-81.5mm pistons. It all boils down to whether you were planning on spending the money for sleeving. As they say there's no replacement....

 

Bigest notice is the
Bore doesnt shroud the Intake valve
wich inturn makes the big power

 

up

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ActiveAero &raquo;</TD></TR><TR><TD CLASS="quote">Trying to decide if the .2 liters of displacement really makes the difference for the price. Thanks in advance.</TD></TR></TABLE>

YES it does ... difference of a puny 150 lb-ft of torque vs. 175 lb-ft
... discplacement is king, among other advantages ... like what others just mentioned.

Greg