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TREX and auto tranny??

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Old Apr 30, 2006 | 12:27 PM
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Default TREX and auto tranny??

Who all is running a TREX with a auto tranny? I am considering this cam with my next motor and will be going to a TH350 and 410 rear end. 28" tire also. Is this a good cam for a auto car? It will be just for drag. Stock heads.
Thanks.

Last edited by a98ws6; Apr 30, 2006 at 01:14 PM.
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Old Apr 30, 2006 | 01:16 PM
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Plenty of people do it. Just make sure you have a 4000+ stall.
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Old Apr 30, 2006 | 01:54 PM
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Originally Posted by HeapaShifter
Plenty of people do it. Just make sure you have a 4000+ stall.
I was thinking about a 4500 stall. Thanks!
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Old Apr 30, 2006 | 06:47 PM
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my buddy has one, a th-350, stock heads, 4000 stall, bottom end it feels like a turd, but it picks up pretty well, my main suggestion would be a large gear, at least a 3.73 or 3.90 would be better.
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Old Apr 30, 2006 | 09:47 PM
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Originally Posted by jaredwayt
my buddy has one, a th-350, stock heads, 4000 stall, bottom end it feels like a turd, but it picks up pretty well, my main suggestion would be a large gear, at least a 3.73 or 3.90 would be better.
I have 4.10's so that shouldnt be a problem. What times does his car run? Full weight?
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Old Apr 30, 2006 | 09:58 PM
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should be fine.... there's a guy from Houston that was running the trex and a th350 setup, think he had an 8" converter with like 4800rpm or 5000rpm stall speed
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Old May 1, 2006 | 12:12 PM
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Originally Posted by a98ws6
I have 4.10's so that shouldnt be a problem. What times does his car run? Full weight?
in his full weight camaro he's turning low 11's with some tuning/fuel issues, but he has a little no2 on top of that, so it rides out pretty well.he want to go 10's on motor, which is very doable, you just have to have the setup, the 4.10 gear will help out alot, so good luck and keep us posted.
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Old May 6, 2006 | 12:03 AM
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Im doing the exact same setup right now, just getting started though, so far I have the cam worked out, still need everything else.

Reason Im posting, and reason Im doing this setup, I had a buddy still running a 4L60E with a 4200 stall with a Trex. He had a few bolt ons and was running on stock suspension in his 98 TA and made a 7.30 pass all motor with this setup in the 1/8. Im not sure what gear he was on, maybe a 3.73

Ive been running a G5X2 and 4.10 gears so far with an M6, so this will be a big change for me as well. Good luck with the swap.
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Old May 7, 2006 | 05:45 PM
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7.30 with the trex and a 4200 stall is pretty slow really juiced, there's cars all over at full weight going 7.10s-.20s with smaller cams and the same size converters, my old personal setup included.
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Old May 7, 2006 | 05:50 PM
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i thought he was running 3.23 gear Juiced
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Old May 7, 2006 | 06:04 PM
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nothing better for a trex cam than an auto with a 4500+ stall. it will fly.
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Old May 7, 2006 | 07:15 PM
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i would say anything around a 4200rpm stall and up would be fine for a trex, i wouldn't start looking at stalls at the 4500rpm range.
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Old May 7, 2006 | 10:21 PM
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Originally Posted by Kounsy
i thought he was running 3.23 gear Juiced

I think you are right, just wanted my story to be believable, I know how the critics are on here. He was for a fact on a completely stock suspension, nothing under the car changed at all, that pass was on BFG DR's, car went low 6's on spray. Car had a lid, Long Tubes, and a cutout. 7.30 was the best pass all motor and that was moving pretty good where I live.
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Old May 7, 2006 | 10:23 PM
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Originally Posted by skipperbisket
i would say anything around a 4200rpm stall and up would be fine for a trex, i wouldn't start looking at stalls at the 4500rpm range.
why not?>
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Old May 7, 2006 | 10:28 PM
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Runnning a t-rex with my ss4000. Alittle bucking. But would of gone with a larger stall, but I spray on top of it. All in all, Don't worry about it.
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Old May 7, 2006 | 10:34 PM
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4500 would be a great area for that cam, but anyone wanting to run something like a yank pt4200 with that cam and the right setup would be SICK. i ran a yank pt4200 with a "similar" cam and it was NASTY.... would it have been meaner with a pt4600? who knows
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Old May 8, 2006 | 12:43 AM
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I'm running a th350 with Trex and a 5100 stall. I LOVE it. havent been to the track as i just put the cam in last week.
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Old May 8, 2006 | 07:29 AM
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I have a 4000 stall and a Trex but they are uninstalled right now. My car's a daily driver and will be NA. I have been debating on sending my stall back in to be set a little higher (4200-4400). I just don't want to have a totally unstreetable setup. Not to hijack the thread, but will I HATE daily driving a 4400 stalled car?
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Old May 8, 2006 | 09:51 AM
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Originally Posted by SVT THIS
I have a 4000 stall and a Trex but they are uninstalled right now. My car's a daily driver and will be NA. I have been debating on sending my stall back in to be set a little higher (4200-4400). I just don't want to have a totally unstreetable setup. Not to hijack the thread, but will I HATE daily driving a 4400 stalled car?
I like driving my car everyday. the only part normal people wouldn't like about my car is the no overdrive part, not the big stall. I have 4.10 gears so i had to put 31" all terrain tires on the back just to get my 70 mph cruising rpm down to 3,500. With the 4.10's and 31's it the same as stock tires and 3.42's.
Seriously though if you had no idea what stall i had iand i let you drive my car around i bet $$$ you would guess it was a 4,000 stall.
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Old May 8, 2006 | 04:25 PM
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Hmmm. It is SO tempting to call the guys at Fuddle and send my converter back in to be restalled to 4400. I was looking forward to getting everything installed this week but I guess I may have to wait.
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