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Re: Auto for Autocross? [Re: buconine] #2217477
12/20/16 02:18 AM
12/20/16 02:18 AM
Joined: Nov 2016
Posts: 200
Colorado
B
Bob J Offline OP
enthusiast
Bob J  Offline OP
enthusiast
B

Joined: Nov 2016
Posts: 200
Colorado
Originally Posted By buconine
It will be great to have anther mopar at the races! The Chenowths and I are the lone mopars at nats the last couple years.
Shooting to have my cam-t valiant ready by spring but that is a long shot as i just took on another major project. It will be a 500hpish rb with a 727. I had some of the same concerns with the auto but i think i will be fine. I'm running a 275 35 18 square with a 323 gear. Our average course speed is 40-45mph with peaks of 68-70 mph on the really fast courses. That will stick me in 1st for most of the courses with the occasional blip into 2nd.

Can't wait to get this thing done. My 15 scat pack is fun but just isn't competitive nationally. Hoping the valiant does better. Good luck on your build!


I'm not sure that I could make it to nats next year. I don't think that I will finish till about mid season. Even if I get it finished in time it will take some time for me to dial in a new type of car that I'm use to. And damit I will have to learn how to drive something that doesn't have large weight at the rear that I can use to turn the car. grin
On the speeds that sounds about correct. I was hitting the limiter in second a few times in the finish lights at about 67-68 with the tires that I ran last year.


07 Porsche C2 997.1 6spd DD and SCCA Solo II SS
68 Plymouth GTX Convert. 493cu Hotkiss Wilwood Classic air, Building for Solo II Cam
65 Chrysler 300 Convert. project
57 Desoto 2dr. Firesweep 392 Hemi,Wilwood Project with son
2003 Dodge Dakota R/T "DEAD"
Re: Auto for Autocross? [Re: Bob J] #2217884
12/20/16 05:25 PM
12/20/16 05:25 PM
Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
Mopar Mitch Offline
pro stock
Mopar Mitch  Offline
pro stock

Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
My B&M HoleShot has lived and performed flawlessly for over 35+ years of serious SCCA and related autocross competition. Stall is ~2400?


Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
Re: Auto for Autocross? [Re: Mopar Mitch] #2217887
12/20/16 05:37 PM
12/20/16 05:37 PM
Joined: Nov 2016
Posts: 200
Colorado
B
Bob J Offline OP
enthusiast
Bob J  Offline OP
enthusiast
B

Joined: Nov 2016
Posts: 200
Colorado
I was thinking something like 2000 - 2500 would be good Thank you for the input. It's just hard for me to give up a stick and that 1.92 second gear but I'm leaning to a 727.


07 Porsche C2 997.1 6spd DD and SCCA Solo II SS
68 Plymouth GTX Convert. 493cu Hotkiss Wilwood Classic air, Building for Solo II Cam
65 Chrysler 300 Convert. project
57 Desoto 2dr. Firesweep 392 Hemi,Wilwood Project with son
2003 Dodge Dakota R/T "DEAD"
Re: Auto for Autocross? [Re: Bob J] #2220311
12/24/16 05:59 PM
12/24/16 05:59 PM
Joined: Feb 2010
Posts: 1,645
Phila. Pa.
Mattax Offline
top fuel
Mattax  Offline
top fuel

Joined: Feb 2010
Posts: 1,645
Phila. Pa.
BobJ, With the power you're looking at I think the 727 is going to be easier to set up and drive reliably. If you were looking at something where speed matters (talking competitions where 100+ mph is a major part of the game) then it the manual transmission would be much more important. OTH, if you really prefer the feel of a manual, you got to go with what you'll be comfortable with on course.

Re: Auto for Autocross? [Re: Mattax] #2220570
12/25/16 05:03 AM
12/25/16 05:03 AM
Joined: Mar 2007
Posts: 254
Opelika, AL
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JRs_Charger Offline
enthusiast
JRs_Charger  Offline
enthusiast
J

Joined: Mar 2007
Posts: 254
Opelika, AL
I rarely post here, but popping in to say I've got no complaints about AutoX'ing a 727.

My car is stock weight, mild 440, 2400 rpm converter with 2.96 rear end. I just start in second gear and leave it there, the tranny seems happy. I've never noticed any high temps or slippage.


Re: Auto for Autocross? [Re: JRs_Charger] #2220676
12/25/16 03:19 PM
12/25/16 03:19 PM
Joined: May 2003
Posts: 96,649
On The Boat, On The Lake, Wa. ...
amxautox Offline
Still Retired. Still Posting on Moparts. A Lot.
amxautox  Offline
Still Retired. Still Posting on Moparts. A Lot.

Joined: May 2003
Posts: 96,649
On The Boat, On The Lake, Wa. ...
Yup, second gear and go for it. Worked great in my SS/T also.

National Tour, July '98. The truck was 5 1/2 months old with 500 miles on it. I've beaten lots of cars with it in the novice classes and finished the summer in second place behind a '67 or so XKE after racing it for only the last 1/2 of the summer.

toms truck 1 National Tour '98  big.jpg

Tom

"Everyone should believe in something; I believe I'll go fishing."

-Henry David Thoreau

Men and fish are alike. They both get into trouble when they open their mouths

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