Re: new engine

["Pat Martin" <mardkins@email.msn.com>]

>I just ordered a 10v dual knock sensor motor for my 86 4kcsq and paid $1600
>versus average of $4500 I was quoted for the 20v  motor.

Congratulations.  The process has started.  Did you follow my 1st
instruction in my conversion post.  Is your current motor wet:-).

Did you get: both wiring harnesses, computer, after run equipment, hoses and
intake lines ect. ect. ect...

 I feel that with
>some simple mods - chip, spring, exhaust, intake, possibly oversize exhaust
>valves - it should be about to put out about 250hp running 1.8 bar boost.

Those are reasonable expectations.  Not sure what intake mods you can do to
do any good but definitely think hard about what you are doing for an
intercooler.  3" exhaust.  No smaller.

>With the weight advantage (600 lbs.), shorter gearing, K24 turbo it should
be
>much quicker than my chipped 5kcstq, which already hauls pretty well on the
>freeway in my opinion. With an adjustable wastegate and a little more
boost,
>280 hp should be attainable for track use. I've never had the opportunity
to
>drive a 4kcsq with more than 120hp, which at this altitude (6000 ft) is
>slower than most SUV's!

It does pull pretty well.  I am running 12lbs of boost right now and am
probably in the 5-6 second range for 0-60.   Very quick.  Petes car (march
ec) has the k-24 and is running the same boost with stock intercooler and
stock exhaust.  His car is more responsive a lower levels but up high looses
its oomph.  Could be the exhaust but Ned feels that the turbo might be part
of it too.  His 0-60 is very close to mine but slightly quicker.  Another
friend of mine has the same motor as me but with a custom intercooler.  His
car is slightly slower at lower rpm but gets better up high.  Depends allot
on the weather.



>So, the reason I choose the 10v dual knock sensor motor for the conversion
>over the 20v was cost, and over the earlier 10v was the K24 turbo, dual
>knock sensors, slightly higher compression, and lighter flywheel. I also
>wonder whether the 20v conversion is really simpler than the 10v?

Resounding YES.  The 20v air intake is much easier (PLAN NOW), and the tie
rod stays put.  Other than those 2 things pretty much everything else is the
same.

>Hope I have no regrets. Even with the 10v motor, it's an expensive
>conversion!

You will not.  It is an expensive as well as long conversion.  Expect 4-6
months of down time.


>p.s. Pat - how do you like the Yoko A520's and what size are  you running?


Like them ok.  Slightly less aggressive that the previous AVS intermediates
but they wear slightly better.  Would highly recommend a set of track tires
though.

Pat Martin
864000csq turbo, 2 1/2 cat back, H&R-Boge, MC and loving it.  Drilled and
stopping it. Koenig Cobra 16x7 with Yokohama A520's turning it,  K&N and
uh..., Soon: Hella's lighting it.
84 4000sq  AKA: The beater.
95 subaru legacy
Bothell, Wa