get the mopar r/t springs good for .525 lift, how many miles are on the
motor?
Greg Conner
1996 RC
3.9 hybrid
>From: "Tim Althoff" <talthoff@yllwdkta.com>
>Reply-To: dakota-truck@dakota-truck.net
>To: <dakota-truck@dakota-truck.net>
>Subject: RE: DML: Re: RE: Re: winter projects...
>Date: Thu, 7 Nov 2002 23:04:33 -0500
>
>
>ok, I've got confirmation form bernd that I should stick with the 1.6's
>rockers. so what all should I buy with this...1.6 roller rockers, cam,
>valve springs (which ones)? Also, going to do the double roller timing
>chain. any miscellaneous stuff?
>
>Tim Althoff
>99 SY 3.9 5-Speed 'Customized' RC Dakota
>http://www.yllwdkta.com
>
>
>-----Original Message-----
>From: owner-dakota-truck@bent.twistedbits.net
>[mailto:owner-dakota-truck@bent.twistedbits.net]On Behalf Of ScSilverdak
>Sent: Thursday, November 07, 2002 10:30 PM
>To: dakota-truck@dakota-truck.net
>Subject: Re: DML: Re: RE: Re: winter projects...
>
>
>
>I added a set of Comp Cams 1.6 roller rockers, they are basically 1.6 ratio
>SB Chevy roller rockers with the correct pushrods and rocker arm studs to
>install them on a Magnum v6 or v8, expect a 12-15 hp increase at the crank
>or a 9-12 RWHP increase on average, they work fine even with a stock
>cam...........a valve spring swap is a good idea if your adding these and a
>cam.
>
>Ron-
>'01 Dakota Sport 3.9 Supercharged
>website:http://www.scsilverdak.com
>e-mail: scsilverdak@hotmail.com
>
> ---- Original Message -----
>From: <jon@dakota-truck.net>
>To: <dakota-truck-moderator@bent.twistedbits.net>
>Sent: Thursday, November 07, 2002 10:21 AM
>Subject: Re: DML: Re: RE: Re: winter projects...
>
>
> >
> > "Gary Hedlin" <ghedlin@theramp.net> wrote:
> >
> > : The comp cams 1.6 ratio cams (part no 1424-KIT) will work perfect.
>They
> > : also are significantly cheaper than the crowers. The 1.7's really
>don't
> > : give you that much HP compared to the 1.6's. If your doing the rocker
>arms,
> > : I'ld recomend a camshaft too. a Comp Cams 504/.512 Lift, 200/206
>Duration
> > : (part no 3310) should work nicely, thats what I'm using for my new V6.
> >
> >
> > I was going to suggest to Tim that as long as he was changing out
>the
> > rockers, he might as well step up to the 1.7s for that extra lift, but
> > I'd have to qualify that by saying that I'm not really up on what is
>available.
> > It sounds like the 1.7s might be significantly more expensive than the
>1.6s,
> > and if that's the case then the small additional increase might not be
> > worth the extra cash outlay. If they were the same price though, I'd go
> > with the 1.7s as long as you know there aren't any piston to valve
>clearance
> > problems. I seem to remember that if you upgrade to the rollers, you
>should
> > get higher valve covers too, or cut the baffles out of the stock ones.
> >
> > Speaking of rockers in general, does anyone have any before/after
> > dyno data? The stock ratio on our Daks is already 1.6, so the only
> > thing going to 1.6 rollers will give you is decreased friction and
> > probably closer production tolerances than the stock stamped steel
> > units. (Though it does give you the ability to rev a bit higher if
> > that is what you're into.) :-) So, it doesn't *seem* like there are
> > huge gains to be had here - I wouldn't expect any miracles and before
> > doing this swap, I would definitely like to see some dyno data
> > considering you're probably looking at dropping a few bills on it. :-)
> >
> > When I did a "performance rebuild" on my 440 Barracuda, I went with
> > aluminum roller rockers, but mainly because I needed an adjustable
> > valvetrain - if I didn't, I probably would have stuck with the stockers.
> >
> >
> > --
> >
> > -Jon-
> >
> > .---- Jon Steiger ------ jon@dakota-truck.net or
>jon@jonsteiger.com -----.
> > | I'm the: AOPA, DoD, EAA, NMA, NRA, SPA, USUA. Rec & UL Pilot - SEL
>|
> > | '70 Barracuda, '92 Ram 4x4, '96 Dakota, '96 Intruder 1400, '96
>FireFly
>|
> > `-----------------------------------------
>http://www.jonsteiger.com ----'
> >
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