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Re: Turbo cam in NA I5--Lest's ask Turbo!!

Hi Fellas,

I was talking to Turbo (mike from Pittsburgh) a while back, and believe
he mentioned this as 
a very solid way to bring the I5 nearer to it's potenial (we had been
talking about my 86 CGT)--I think he mentioned something like a quick
15-20 HP. 

Turbo, are you out there?  Any comment? 

Jonathan Monetti
86 CGT 96k

>Huw Powell wrote:
> >  # I have heard from a VERY informed source that this is the best
> cheap way to
> >  # get power out of a N/A motor.  Short of a Schrick 276 it is the
> best thing you
> >  # can do to it.
> >  #
> >  # Anyone care to share their real world experience with using a
> turbo cam in
> >  # a NA I5? ('86 4kcsq in my case)
> >  #
> > ... If one looks in the Bentley for the 5k (84-88) at the engine
> specs, the
> > cam timing specs for the NA I-5 (code NF?) look pretty doggone
> similar to
> > those for the MC (turbo).
> So the bottom line is, no one here has done this.  Mike T mentioned in
> reply to one of my previous inquiries on this subject that the lobes
> on
> the turbo cam lift the valves further, allowing a bigger charge.
> I had hit on the idea of transferring the whole head, which would get
> me
> slightly bigger valves as well and let me do head work (replace valve
> stem seals etc) with my car running.  Trouble would be dealing with
> the
> many likely broken studs, etc.  If I don't do that I will probably try
> this camshaft swap in a few months.  I will do some measuring while
> they're out if I can.
> I want to replace my valve seals anyway, hey the camshaft has to come
> out to do that, I have a 5kt parts car, seems like the thing to do.
> Too
> bad nobody actually knows the pros and cons already.
> --
> Huw Powell
> Astrolographer:
>       (n) 1. Someone who wakes up with accurate charts of unknown
> stars
> mapped out on their eyelids.