canuck-mx6

I presently have a built GSR motor with a JUN head package. My power actually peaks at 9000 (dyno tested) and I shift at 9200

I want to get a b20 block with the following mods
1.Endyn RW pistons (12.5:1 CR) with eagle rods
2.Oil squirters installed in the block
3.Z10 Engineering girdle
4.Fully balance the rotating assembly

Since my JUN 3 cams in that particular GSR head make the most power at 9000, I need to know if the block can handle that RPM as well


[Modified by canuck-mx6, 9:07 PM 8/7/2002]

Jeff C

here are some dyno charts to look at with built b20vtecs...
http://www.importreview.com/d_2.0.html
you might want to put a block guard into that equation
its not a matter of if it will handle 9k...its a matter of how many times it will handle 9k
it probably wont handle it as good the c1 because of the blasted r/s ratio that everybody talks about
why not punch out your c1 block to 2.0l

canuck-mx6

Well the b20 will cost me just as much to purchase as the cost to resleeve the b18c1. Plus I can resell the b18c1 block. Pistons and rods and balancing are a sunk cost as I would need to do that for both. Then there is the downtime factor. I suppose that I could do it over the winter as the car is stored then, but I am not known for being patient

I suppose that if I resleeve, then I can get the sleeves that have the integrated block guard /closed deck. Will this affect cooling at all?

Jeff C

but you will have an unsleeved 2.0 block so you will eventually need to resleeve it. if you resleeve the c1 block you will have a sleeved 2.0 block...kill two birds with one stone in one winter.
the car will be down in order to put the b20 in too, right?
not that i am aware of. they put cooling holes in them in order to accomodate for coolant circulation.

EDIT: i messed the quote up


[Modified by Jeff C, 7:36 AM 8/8/2002]


[Modified by Jeff C, 7:37 AM 8/8/2002]

JalopySiR

I own a B20 and I know someone who is boring out their GS-R block to slightly less than 2 liters. (dlric) IMO, this would be the way to go. 1. keep the slightly better r/s 2. Oil squirters 3. Sleeved i.e. much stronger 4. already have girdle...anything else??