no I'm not mate.Quote:
Originally Posted by tinkerbell
crvtec compression = 9.2
stock b20b ecu redline = 6200
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no I'm not mate.Quote:
Originally Posted by tinkerbell
crvtec compression = 9.2
stock b20b ecu redline = 6200
Seemed to be enough compression for me to run a 12 second quarter...
And the engine isn't low revving, the computer is limited low. If you go to the trouble of B20vtec, you'd have to be an idiot to use the b20b computer...
my 9.5:1 compression ratio B20VTEC got me to a 13.7 second pass...
with an 8500rpm fuel-cut...
hmmm, maybe these guys with 11:1 CR could be wondering how?
"there is no replacement for displacement..."
did you have a b20b or b20z block?
i've read that the b20z actually had slightly higher comp, somewhere around 10.2:1 or something. i read it on the net, so it has to be true ;)
sorry tinkerbell if its a dumb question but can u explain to me....
"there is no replacement for displacement..."
Z pistons were slightly up on B pistons. I "think" (remember I am getting old) it was up from 9.2 to 9.5....
Paul "bigger is better"........ only men with small d1cks think otherwise :)
b20b4 + b16a head = 9.0:1
b20b4 + b18c2 head = 9.2:1
b20b8 + b16a head = 9.9:1
b20b8 + b18c2 head = 10.1:1
--
Paul - "displacement" is the amount of internal space an engine has for combustion.
you work it out by a calculation involving bore and stroke...
more bore or more stroke (or more both) = more displacement, so the engine can move more air through it for each given RPM (and hence make more power)
ie "there is no replacement for displacement" (or forced induction)
i see now.. cheers :)
btw.. thanks for the CR's
You could try a b16 hybrid:
- B17A crank
- 85mm bore
- 9,000rpm redline
- Eagle rods
-ARP head studs and rod bolts
- Wiseco 85mm pistons
approx 1.9litre capacity (nearly 2.0litre) with a much better R/S ratio than the B20 AND the B18C.
The stock b16a has a near perfect R/S ratio - its one of the most well designed short stroke Honda engines ever made
You would have far fewer concerns with reliability and also have a very revvable car.
Torque and topend that is reliable - what more could you want? :thumbsup:
But this would cost a pretty penny - but I would rather save up and do it right the first time.
let me know when you find a B17A crank, LOL!
if you find one for sale in australia, i will root a goat...
hehe, i feel like importing one all of a sudden.Quote:
Originally Posted by tinkerbell
*the proof is in the pudding, two of the fastest na hondas on this forum were both running b20 vtecs, reliably. they aren't as bad as people would have you think.
ginganggooly,
i am buildign a new B20VTEC as we speak... (due to spun rod bearing in B18C2)
going to be making a website outlining how to do it, what parts are required and how to ensure reliability...
there is way too much fear about these engines, basically due to mis-information being spread by ill-informed interweb mechanics...