DeTomaso Mailing List: April 2001, Message #167

I'm not really an 'expert cam guy' but I also have a more aggressive Crane
cam (H-288-2) which seems just about right for around town drivability but
good high rpm horsepower (pulls above 6,000 with a 750 Holley and Performer
intake on a mostly stockish build engine).  It has a killer idle sound
coming from my big-bore exhaust.  The cam specs are below:

    Lift:    0.528(I), 0.536(E)
    Duration at 0.05 w/ 1.73 rockers:    226(I), 230(E)

I'd vote to go more aggressive than the cam you mentioned.

Dave


----- Original Message -----
From: "Tony DiGiovanna" <t.digiovanna@mindspring.com>
To: "Multiple recipients of list" <detomaso@realbig.com>
Sent: Wednesday, April 04, 2001 6:28 PM
Subject: Re: Feedback on Cam Specs


> That is nearly identical to the cam I'm running with 9.7:1 CR open chamber
> heads.  It is my opinion that it is way too mild.  Even with the Holley,
the
> car idled like stock and made torque down to like 200 rpm.  Now that I
have
> my webers on it, I can feel it run out of breath around 5500 rpm (per the
> stock tach.)  I also notice my car does not have quite the same snappy
> exhaust note that many others do.  I believe more duration, around 230 at
> 0.050, and more intake lift is called for.  That is my plan this spring.
> Also, if you do some good exaust port work, I am not sure the extra
duration
> on the exhaust is still necessary.
>
>
> ----- Original Message -----
> From: "Mc Mullen, Mirril (Mirril)" <MMcMullen@ATT.com>
> To: "Multiple recipients of list" <detomaso@realbig.com>
> Sent: Wednesday, April 04, 2001 8:56 AM
> Subject: Feedback on Cam Specs
>
>
> > Listers,
> >
> > My motor guy is recommending a Crane Cam with the following specs for
> street
> > and occasional track use.
> >
> > My motor is being built to basic 72/73 specs with flattop pistons.
Nothing
> > outrageous.
> >
> > What do you guys think about this cam?
> >
> > Hydraulic lifter cam. Intake lift .510/214 duration
> > @.050. Exhaust lift .536/224 duration @.050.Intake lobe
> > center 107 degree. 0BTC,34ABC,49BBC,5BTC, WITH 1.73
> > ROCKERS.
> >
> > Let me know what you think,
> >
> > Thanks
> >
> > Mirril M. McMullen
> >
> >  <<...OLE_Obj...>>
> > *  mmcmullen@att.com
> >       mmcmullen@exchange.ml.com
> > *212-647-3023
> > &Pager# 888-merril0 (637-7450)
> >
> >
> > > ----------
> > > From: CLINTONMACHINE@att.net[SMTP:CLINTONMACHINE@att.net]
> > > Sent: Tuesday, April 03, 2001 11:12 PM
> > > To: Mc Mullen, Mirril (Mirril)
> > > Subject: Re: Cam Specs
> > >
> > >
> > > Hydraulic lifter cam. Intake lift .510/214 duration
> > > @.050. Exhaust lift .536/224 duration @.050.Intake lobe
> > > center 107 degree. 0BTC,34ABC,49BBC,5BTC, WITH 1.73
> > > ROCKERS.
> > >
> > >
> > > > Bill,
> > > >
> > > > When you get a chance, please email the specs for that cam you are
> > > > recommending.
> > > >
> > > > Thanks,
> > > >
> > > >
> > > > Mirril M. McMullen
> > > >
> > > >  <<...OLE_Obj...>>
> > > > *  mmcmullen@att.com
> > > >       mmcmullen@exchange.ml.com
> > > > *212-647-3023
> > > > &Pager# 888-merril0 (637-7450)
> > > >
> > >
> >
>
>
>