DeTomaso Mailing List: April 2001, Message #157

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)
> > >
> >
>