[Shotimes] Interesting...porting the intake

[Dave Kegel]

Well, I don't think porting makes much of a difference at all on a fairly
stock motor.  Lot's of guys have ported their heads and intakes. I don't
think there was any increase on a dyno. In fact, depending on what you read
and/or believe, porting can actually cause you to lose HP.  There's a very
interesting website somewhere on this phenomenon.

I think some motors are stronger than others due to differences in cam
timing, not gasket matching.

Dave "Step away from the Dremel" Kegel

----- Original Message -----
From: "Don McKinnon (AST)" <dmckinnon@asttechlabs.com>
To: "Bruce Malachuk" <bmalach1@nycap.rr.com>; "SHOtimes"
<shotimes@autox.team.net>
Sent: August 05, 2003 3:43 PM
Subject: RE: [Shotimes] Interesting...porting the intake


> Bruce,
> A while ago (years ago?) there was talk on this list about why some
engines
> are strong and others are not.  My intake seemed to have less mismatch
> compared to what others were talking about, stock it ran very strong 193TQ
> and 195 HP.
>
> Laminar flow is definitely the best.  I have an article on heads that
states
> the power losses of airflow can be up to 3% just based on the rough
surfaces
> in the head intake track alone.  Add in the rough intake runners and
> mismatched alignments that number surely takes off.
>
> Time for BBB and EH intake or hand ported intake!
>
> Don McKinnon
> 95 MTX - White/Mocha 92k miles
> Stage 1 Power Package with Stage 1cams
> Canyon Carver Road/Race Suspension
> Quaife & HiRevs Competition Clutch