I looked at stroking my CA18 with CA20 crank ect. The crank was not the problem
getting custom rods ect was going to be the expensive part also all that work
for only a small gain in capacity the ca20 has bigger bore. Im aiming at 400hp
with my next stage of development with cams solid lifters bigger valves ect.
shoudl be a handfull I feel this would be at it limit without going bigger
better bottom end parts have heard of over 500hp from some jap spec ca18det
180sx it run 10's!!! The ca18 engine is very compact and very strong I have been
fairly harsh on my engine big 4th gear burnouts ect even running 20psi it runs
without problems :) just regular mobil 1 oil changes. The engine will be appart
for a while after the house -workshop is completed getting the headwork done and
look forward to getting it tuned ect time will tell how it goes in the HP stakes
I dont really want to run anymore than 20psi (have run upto 25psi ) and get as
much as possible hopefully around 270-280 at the wheels. (lots of fun in a
little 1200)
Cheers Andrew
Tom Richardson wrote:
> The CA18DET has 1.77" diameter connecting rod journals, so an L20b
> crankshaft (1.96" journals) to give 1861cc would need the block clearancing.
> SR20DET would also give 1861cc. An FJ20 crankshaft would actually DEstroke
> the motor (80mm stroke) and give 1731cc. CA20 crankshaft would give 1904cc.
>
> My 2 cents though: it would be much easier to wind the wick up on the turbo
> and leave the bottom end alone. CA18DET's are not weak motors!
>
> - Tom
>
> ----- Original Message -----
> From: "Wojee" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, May 03, 2001 11:43 PM
> Subject: Re: Power output of a Fj20det?
>
> > G
> increased
> > capacity) So i have done nothing else but increase the capacity a little,
> > and compare it to a equally standard SR20DET equivalent. I think , like
> > Andrew says, that they are under rated.... I actually like the valve train
> /
> > actuation of the CA compared to the SR........... Although I am
> wondering
> > what the port sizes (inlet/exhaust) are compared to the SR??? Basically
> > what i am chasing is to find out if the both engines had the same capacity
> > would the power output be the same.... standard engines... no boost
> > increase....
> >
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