Re: How much power can an automatic valve body handle?
[Re: gtx6970]
#1094121
10/14/11 10:30 AM
10/14/11 10:30 AM
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Joined: Jun 2005
Posts: 4,041 michigan woods
imfixinmopars426
master
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master
Joined: Jun 2005
Posts: 4,041
michigan woods
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i once owned,and worked at my trans shop here in town for 10 yrs..1982-1992..i enjoy building and tricking my 727's,even now,but if i had a serious car,and or a big hp cust. car,and wanted the best,and latest tech/parts, i would call john ,at CRT'S,and have it done right,but have him build a trans for the application,hp level/usage,ect,and not your budget. he is a great guy. mike
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Re: How much power can an automatic valve body handle?
[Re: Hemi ragtop]
#1094130
10/15/11 02:23 AM
10/15/11 02:23 AM
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Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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I was running my #4,150 Charger in the High 11's with a near stock 727, and the Trans-go TF-2 shift kit in the stock valve body. When I took it apart the clutches still looked good, but the front (low) gear set was shot. The aluminum splines in the gear were cracked and some fell out when I pulled it off the output shaft. A new billet steel 4-pinion roller bearing set from Cope was $500. I beefed up the new trans with a billet steel front drum and piston for safety and to add an additional clutch, $535. This required a beveled rear drum, so I got the billet aluminum rear drum $225. Figured may as well get the lightened sun shell, Max lug pump gears, and A&A Ultra sprag - $165 / $105 / $200. Anyhow, by the time I got done with all the extra parts like servos, bands, Alto red eagle clutches and kolene steels, thrust washers, rear vent, deep trans pan, billet struts and ancor, 4.2:1 lever, Ultimate 9" converter, etc I have about $3,500+ into a 727 transmission.
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Re: How much power can an automatic valve body handle?
[Re: Hemi ragtop]
#1094134
10/15/11 10:46 AM
10/15/11 10:46 AM
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Joined: Jun 2003
Posts: 21,489 It's a dry heat
gtx6970
Too Many Posts
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Too Many Posts
Joined: Jun 2003
Posts: 21,489
It's a dry heat
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Quote:
Does your trans have manual or auto valve body?
This trans has an auto shifting valve body.( cars owner has no interest in a full manual shift) He told me it's a TF2 kit combined with a few mods of his own( he did not tell me those btw). It also has the billit planetary/gear set and drum and a bolt in rear sprag. with a PTC 3000 stall convertor( 10" I think)
Hands down one of the best shifting trans I've ever driven. Price was just under $3000 last spring. Coupled with service after the sale has been second to none.
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Re: How much power can an automatic valve body handle?
[Re: Hemi ragtop]
#1094135
10/15/11 11:51 AM
10/15/11 11:51 AM
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Joined: Jan 2003
Posts: 75,092 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,092
A Banana Republic near you.
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Quote:
It is interesting that both Rick and John built you an auto shifter with no problem. Maybie I should have held back when they asked if I had dynoed the engine? Do I read right, did John build this last trans for you?
No, you don't want to hold back on the info you give, what happens when you smoke the trans, will you come on here and trash one of them because you withheld info?
So am I reading this correctly, the trans let go with it being run on jackstands? there was no load on the engine, the problem with the trans is the person that built it.
How much did you spend on the engine? Do not cheap out on the transmission, a basic rebuild and a shift kit is not going to survive in a hi torque application.
I have a hopped up Cummins in front of an auto shift 47RE, which is basically a 727 with an OD on it, I ... well not me some donkey trying out my new turbo to see if he wanted to buy one also... smoked the front clutch when it still had factory clutches, since rebuilt .... did it myself ... it has been fine with an auto shift VB that is modified, but I have a lot of money invested in the trans.
Last edited by JohnRR; 10/15/11 03:33 PM.
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