[DeTomaso] Taller 5th gear for cruise
jgkrenton at comcast.net
jgkrenton at comcast.net
Fri Jun 18 22:37:22 EDT 2010
Asa:
You hit it on the head! Why does Dawg have time to send all these e-mails when he has all those T-Shirts to distribute??? What is up with that?? There are girls in need!!!!!!
(And Ft Stockton Tx is like Bangkok just like Victorville CA is like Tahiti...)
I think Dawg is slacking on us! Without his Pantera, he's lost his focus... ;-) He's drifting aimlessly through the moreass...
Jeff 2467
----- Original Message -----
From: "Asa Jay Laughton" <asajay at asajay.com>
To: detomaso at realbig.com
Sent: Thursday, June 17, 2010 8:53:42 PM GMT -08:00 US/Canada Pacific
Subject: Re: [DeTomaso] Taller 5th gear for cruise
You get those Wet T-Shirt photos yet? C'mon Dog where -are- your
priorities? Talking about Pantera stuff, good grief, one would think
you were in a hotel room lounging on a couch eating Cheetos.
Asa Jay
;)
Asa Jay Laughton, MSgt, USAFR, Retired
& Shelley Marie
Spokane, WA
******************************
http://www.racingagainstautism.com
http://www.teampanteraracing.com
On 6/17/2010 20:18, Mad Dog Antenucci wrote:
> Good argument IF you have a wimpy engine ;-)> or don't or won't miss the 'hole-shot' that the 4.22 gear provides.
>
> Mad Dawg Antenucci
> Team Pantera Racing
> The 1st& still the only vintage race team in open road racing
> www.teampanteraracing.com
>
>
>
>
> ________________________________
> From: P. Rimov<rimov at charter.net>
> To: Will Demelo<wdemelo at cogeco.ca>; Daniel C Jones<daniel.c.jones2 at gmail.com>; Pantera REALBIG forum<detomaso at realbig.com>
> Sent: Thu, June 17, 2010 3:37:20 PM
> Subject: Re: [DeTomaso] Taller 5th gear for cruise
>
> I would have to second Will's recommendation of sticking with the stock
> fifth and going with the 3.77:1. Granted I had a pretty wimpy C-engine, some
> guy I know but it was just amazing the difference going from the 4.22:1 to
> the 3:77:1. I could run out first gear way farther, there was absolutely no
> gear noise and I found I could cruise in 4th or 5th at highway speeds. What
> ever speed I drove I always felt I had the right gear available.
>
> Cheers
>
> Paul
> ----- Original Message -----
> From: "Will Demelo"<wdemelo at cogeco.ca>
> To: "Daniel C Jones"<daniel.c.jones2 at gmail.com>; "Pantera REALBIG forum"
> <detomaso at realbig.com>
> Sent: Thursday, June 17, 2010 2:10 PM
> Subject: Re: [DeTomaso] Taller 5th gear for cruise
>
>
>
>> I have the 3.77 and .655 fifth gear. I find it a little sluggish at 75mph
>> with a 393 stroker. I don't recommend going any taller on the fifth. The
>> 3.77 r&p is amazing.
>> Will
>>
>> ----- Original Message -----
>> From: "Daniel C Jones"<daniel.c.jones2 at gmail.com>
>> To: "Pantera REALBIG forum"<detomaso at realbig.com>
>> Sent: Thursday, June 17, 2010 3:41 PM
>> Subject: [DeTomaso] Taller 5th gear for cruise
>>
>>
>>
>>> I've decide to have a taller 5th gear installed in the red Pantera's
>>> transaxle. The standard 5th gear is 0.705. The optional 5th gear
>>> ratios are:
>>>
>>> 0.655
>>> 0.642
>>> 0.620
>>>
>>> The tallest 5th gear with the standard ring and pinion is very similar
>>> to the standard 5th gear with the 3.77:1 ring and pinion:
>>>
>>> 0.620 * 4.22 = 2.61640
>>> 0.705 * 3.77 = 2.65785
>>>
>>> I ran some numbers assuming:
>>>
>>> 335/35/17 tires
>>> 4.22:1 final drive ratio
>>> current gear ratios
>>> 1st 2.23
>>> 2nd 1.47
>>> 3rd 1.04
>>> 4th .846
>>> 5th .705, 0.655, 0.642, 0.620
>>>
>>> Speed Ratio RPM
>>> 80 MPH .705 3050
>>> 80 MPH .655 2834
>>> 80 MPH .642 2777
>>> 80 MPH .620 2682
>>> 70 MPH .620 2347
>>> 60 MPH .620 2011
>>> 60 MPH .642 2089
>>> 60 MPH .655 2125
>>> 60 MPH .846 2745
>>>
>>> Typical highway cruise speed is 75 to 80 MPH. The engine is a 407
>>> Fontana with C302B heads and IR EFI. Looks like I should be able
>>> pull the 0.620 gear at 80 MPH. It might be sluggish at 60 MPH but
>>> there's not much difference in RPM between the three gears at that
>>> speed so I'm leaning towards the 0.620 gear. I can always drop
>>> back to 4th at 60 MPH which would be 2745 RPM. Any thoughts?
>>>
>>> Dan Jones
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