Anyone care to try me?? 13.489 on a stock cam, head warranty shortblock
package. I'll be at Cecil MD next weekend 12/7.
Sorry I won't be able to meet up with the VA get together, but if its not
that far away, you all might consider a road trip to Cecil, and come out to
play or watch some of us R/Ters in action.
TonyC
-----Original Message-----
From: Gary Hedlin <ghedlin@theramp.net>
To: dakota-truck-moderator@bent.twistedbits.net
<dakota-truck-moderator@bent.twistedbits.net>
Date: Wednesday, November 27, 2002 1:30 AM
Subject: Re: DML: Dyno #s for diy ported heads
>
>yes, really :)
>
>--
>Gary Hedlin
>"The Crazy Quadraplegic"
>ghedlin@theramp.net (business)
>ragingquad@yahoo.com (personal)
>Webmaster For
>http://garyhedlin.com
>http://importslayer.com
>http://socaldakota.com
>http://scsilverdak.com
>http://assistivetechnologies.com
>...And Many More!
>
>""greg conner"" <dodgeboy93@hotmail.com> wrote in message
>news:F100hY8aUFLUH2s3Cfu000036bb@hotmail.com...
>>
>> oh really? ;)
>>
>>
>>
>> Greg Conner
>> 1996 RC
>> 3.9 hybrid
>>
>>
>>
>>
>>
>> >From: "Gary Hedlin" <ghedlin@theramp.net>
>> >Reply-To: dakota-truck@dakota-truck.net
>> >To: dakota-truck-moderator@bent.twistedbits.net
>> >Subject: Re: DML: Dyno #s for diy ported heads
>> >Date: Tue, 26 Nov 2002 23:53:28 -0600
>> >
>> >14.313??? My V6 is gonna smoke that after the new engine!!!
>> >
>> >I'm glad to see ya do your porting yourself. Makes the rewards of your
>> >labor that much better!! Not many would tackle that feat!
>> >
>> >
>> >Gary Hedlin
>> >"The Crazy Quadraplegic"
>> >ghedlin@theramp.net (business)
>> >ragingquad@yahoo.com (personal)
>> >Webmaster For
>> >http://garyhedlin.com
>> >http://importslayer.com
>> >http://socaldakota.com
>> >http://scsilverdak.com
>> >http://assistivetechnologies.com
>> >...And Many More!
>> >
>> ><srp@cox.net> wrote in message
>> >news:20021127052232.QGAD2203.lakemtao02.cox.net@smtp.east.cox.net...
>> > >
>> > > I bet my cam would do you wonders... Sounds like my setup (but with
>1.92
>> >RT, nonported heads). I run the 4bbl m1 too.
>> > >
>> > > Sam
>> > >
>> > > >
>> > > > From: Bob Tom <tigers@bserv.com>
>> > > > Date: 2002/11/26 Tue PM 11:59:44 EST
>> > > > To: dakota-truck@dakota-truck.net
>> > > > Subject: DML: Dyno #s for diy ported heads
>> > > >
>> > > >
>> > > > For all you 1/4-milers,
>> > > >
>> > > > Last winter I ported my heads with the MP porting templates.
>> > > > My decision for going this route came down to money.
>> > > >
>> > > > My SAE corrected numbers with the stock heads:
>> > > > Peak HP: 226.1 @ 5000
>> > > > Peak Torque: 257.2 @ 4500
>> > > >
>> > > > My SAE corrected numbers with the ported heads:
>> > > > Peak HP: 241.7 @ 5750
>> > > > Peak Torque: 254.1 @ 4250
>> > > >
>> > > > Unfortunately, circumstances dictated that two dyno shops
>> > > > using different software and hardware were used so that
>> > > > comparing the numbers is not exactly like comparing
>> > > > apples to apples. Also, the printout that I got for the
>> > > > ported heads were for increments of 250 rpm and not
>> > > > the normal increments of 100 rpm for the stock heads.
>> > > > Nevertheless, it gives a close enough ballpark figure of what
>> > > > to expect.
>> > > >
>> > > > With my drivetrain loss, there was a gain of about 20 hp at
>> > > > the flywheel. I certainly was pleasantly surprised to see that
>> > > > the peak torque rpm had actually dropped a couple of hundreds
>> > > > of rpms. I also had expected the peak hp rpm to rise but not quite
>> > > > so high.
>> > > >
>> > > > As for track performance, weather and track conditions did not
>> > > > come close to those where I ran my bests last year. 14.313 @
95.05.
>> > > > My best this year was 14.42 and I did up my trap speed to 95.92.
>> > > > At the end of Sept. this year, I began to experience intermittent
>> >bucking
>> > > > and misfiring in the high rpm range. Initial data indicated that
>the
>> > > > problem might be air-fuel related and I concentrated on this area.
>> > > >
>> > > > Last week, I discovered the problem was the cap and rotor. All the
>> > > > contacts were coated with a hard, thick, 'calcium-like' deposit.
>> > > > I have never seen a condition like this. Looked like it went
>through
>> > > > Jon's mud pit :-)
>> > > >
>> > > > Also, when the air temps. began hitting the 40Fs and below, I
>noticed
>> > > > that my coolant temp. was around 150F (city/highway) and barely
>> >cracking
>> > > > 160 at the track. The 180F tstat turned out to be partially stuck
>> >open
>> > > > and I was running quite rich.
>> > > >
>> > > > Just to show you how much the above problems affect performance,
the
>> > > > dyno numbers with them are:
>> > > > Peak HP: 217.9 @ 5600
>> > > > Peak Torque: 245.3 @ 4300
>> > > >
>> > > > Next week I'll be replacing the RT cam with one that is closer
match
>> > > > to my MPI 4bbl intake and ported heads.
>> > > >
>> > > > Have a great Thanksgiving, all you USAers.
>> > > >
>> > > > Bob, Burlington, Ontario.
>> > > >
>> > > >
>> > >
>>
>>
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