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turbo transmission #841080 10/28/10 09:16 PM 10/28/10 09:16 PM
Joined: Apr 2007 Posts: 325 Greenville, WI B Big B OP enthusiast
Big B OP enthusiast B Joined: Apr 2007 Posts: 325 Greenville, WI	Would a 6 speed automatic trans like the TCI 6X work good behind a turbo car making 2000 hp? I figure the tighter shifts would keep the rpms up to keep the turbos at max spool.

Re: turbo transmission [Re: Big B] #841081 10/28/10 09:50 PM 10/28/10 09:50 PM
Joined: Jan 2005 Posts: 3,635 Oakland, MI D dizuster master
dizuster master D Joined: Jan 2005 Posts: 3,635 Oakland, MI	The turbo would have to be HUGE not to be able to keep spool on a shift. Turbo's love load. Load=heat=boost... Unless you're talking about trying to put some gigantic turbo on a motor that won't spool until 6000 RPM, and plan on using it with a 3000 stall converter, I can't see how it would possibly work (or be needed).

Re: turbo transmission [Re: Big B] #841082 10/29/10 11:33 AM 10/29/10 11:33 AM
Joined: Oct 2004 Posts: 8,165 Left Coast B BobR master
BobR master B Joined: Oct 2004 Posts: 8,165 Left Coast	Quote: Would a 6 speed automatic trans like the TCI 6X work good behind a turbo car making 2000 hp? I figure the tighter shifts would keep the rpms up to keep the turbos at max spool. A. 2000 hp would eliminate the transmission on the first pass. B. Like was stated your logic is flawed. Turbos are not linked to rpms like Prochargers or roots type blowers are. Once they get spooled they tend to stay spooled.

Re: turbo transmission [Re: BobR] #841083 10/29/10 12:16 PM 10/29/10 12:16 PM
Joined: Apr 2007 Posts: 325 Greenville, WI B Big B OP enthusiast
Big B OP enthusiast B Joined: Apr 2007 Posts: 325 Greenville, WI	Well I guess I will just stick to a 727 then with a Gear Venders. I might go with a Lenco Drive.

Re: turbo transmission [Re: Big B] #841084 10/29/10 02:16 PM 10/29/10 02:16 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 Lunch is on me!
joshking440 Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	Lenco Drives are heavy... I have about 1400hp 500" 106 mm turbo infront of a 727 and it actually builds boost as it shifts... Oce you get into the boost, it will climb until the gate opens!

Re: turbo transmission [Re: joshking440] #841085 10/29/10 03:09 PM 10/29/10 03:09 PM
Joined: May 2004 Posts: 12,397 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,397 Taxes & Virus's R-US, NY	Quote: Lenco Drives are heavy... Yup, but they are sooo cool, I think I need one. '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: turbo transmission [Re: Big B] #841086 10/29/10 05:15 PM 10/29/10 05:15 PM
Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY HEMIFRED master
HEMIFRED master Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY	Quote: Well I guess I will just stick to a 727 then with a Gear Venders. I might go with a Lenco Drive. a 727 will not live at that HP level. for a 3 speed T-400 , 2 speed p/glide in any form or HP level both are much less costly than a Lenco drive by 50% home of the Sox and Martin Hemi Duster

Re: turbo transmission [Re: HEMIFRED] #841087 10/29/10 05:20 PM 10/29/10 05:20 PM
Joined: Apr 2007 Posts: 325 Greenville, WI B Big B OP enthusiast
Big B OP enthusiast B Joined: Apr 2007 Posts: 325 Greenville, WI	Joe at Tranzact will beg to differ on that one. He runs a 727 behind a Pro-mod.(3000hp)He said it lasted him 7 seasons and no breakage. So I think a 727 can live behind 2000hp easily.

Re: turbo transmission [Re: Big B] #841088 10/31/10 08:53 PM 10/31/10 08:53 PM
Joined: Jan 2005 Posts: 3,635 Oakland, MI D dizuster master
dizuster master D Joined: Jan 2005 Posts: 3,635 Oakland, MI	I think he meant, a normal 727 on a normal man's budget won't last. If it's got every trick piece in the world to do it maybe... but it wouldn't be cheap...

Re: turbo transmission [Re: Big B] #841089 10/31/10 09:13 PM 10/31/10 09:13 PM
Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY HEMIFRED master
HEMIFRED master Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY	Quote: Joe at Tranzact will beg to differ on that one. He runs a 727 behind a Pro-mod.(3000hp)He said it lasted him 7 seasons and no breakage. So I think a 727 can live behind 2000hp easily. I don't want to say "what" in response but that's very hard to believe but with enough cash anything is possible I would guess everything inside has been replaced with one off items not normally available elsewhere. If true then the price tag must be astronomical. Three times tghat of a P/G or T-400. home of the Sox and Martin Hemi Duster

Re: turbo transmission [Re: HEMIFRED] #841090 10/31/10 10:21 PM 10/31/10 10:21 PM
Joined: Apr 2007 Posts: 325 Greenville, WI B Big B OP enthusiast
Big B OP enthusiast B Joined: Apr 2007 Posts: 325 Greenville, WI	Well since I will be cutting the car all up for the twin turbo motor, I might as well cut out the tunnel. I think having a 5 speed Lencodrive would rock. Not sure if they are streetable though.

Re: turbo transmission [Re: HEMIFRED] #841091 10/31/10 10:23 PM 10/31/10 10:23 PM
Joined: Apr 2007 Posts: 325 Greenville, WI B Big B OP enthusiast
Big B OP enthusiast B Joined: Apr 2007 Posts: 325 Greenville, WI	Right now I have about 1500 in my 727. The only thing I would need to upgrade to is billet input/out shafts.

Re: turbo transmission [Re: HEMIFRED] #841092 10/31/10 10:30 PM 10/31/10 10:30 PM
Joined: Apr 2007 Posts: 325 Greenville, WI B Big B OP enthusiast
Big B OP enthusiast B Joined: Apr 2007 Posts: 325 Greenville, WI	Quote: Quote: Joe at Tranzact will beg to differ on that one. He runs a 727 behind a Pro-mod.(3000hp)He said it lasted him 7 seasons and no breakage. So I think a 727 can live behind 2000hp easily. I don't want to say "what" in response but that's very hard to believe but with enough cash anything is possible I would guess everything inside has been replaced with one off items not normally available elsewhere. If true then the price tag must be astronomical. Three times tghat of a P/G or T-400. That's one of the reasons I will never own another Mopar. The next car I build will be a 67 Chevelle.

Re: turbo transmission [Re: HEMIFRED] #841093 10/31/10 11:51 PM 10/31/10 11:51 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 Lunch is on me!
joshking440 Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	Quote: Quote: Well I guess I will just stick to a 727 then with a Gear Venders. I might go with a Lenco Drive. a 727 will not live at that HP level. for a 3 speed T-400 , 2 speed p/glide in any form or HP level both are much less costly than a Lenco drive by 50% Fred, In your opinion, what is the single part that sets the 727 from a glide or t-400? Is it simply the sprag?

Re: turbo transmission [Re: joshking440] #841094 11/01/10 02:07 AM 11/01/10 02:07 AM
Joined: Nov 2004 Posts: 6,890 North Alabama M Monte_Smith master
Monte_Smith master M Joined: Nov 2004 Posts: 6,890 North Alabama	The two trans just work different. If a t-400 rolls the sprag, it won't overspeed the drum and become a potential bomb. Joe makes some trick stuff for a 727, but it still won't live in front of 3000hp. And if he was making 3000hp, he would be able to qualify for NHRA Pro-Mod. Monte

Re: turbo transmission [Re: Monte_Smith] #841095 11/01/10 03:25 AM 11/01/10 03:25 AM
Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY HEMIFRED master
HEMIFRED master Joined: Jul 2010 Posts: 3,502 SOUTH JERSEY	Quote: Fred, In your opinion, what is the single part that sets the 727 from a glide or t-400? Is it simply the sprag? Monte just provided the techical explanation. I have seen more than enough 727's come thru the floors. It's the purist that try to make it servicable on a budget that see mos tof the damages. I think Duster Dave used John Cope's top of the line 727 which I believe has a safe limit of 1500 HP.It cost as much if not more than a P/G capable of dealing with 2500 HP. home of the Sox and Martin Hemi Duster

Re: turbo transmission [Re: HEMIFRED] #841096 11/01/10 12:24 PM 11/01/10 12:24 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 Lunch is on me!
joshking440 Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	I have the baddest of the bad from cope as well....Im a turbo guy and im going to try it at around 2000hp. I was hoping that since its a radial car and I cant leave as hard as some of the big tire cars do that it will be easier to help it stay together

Re: turbo transmission [Re: joshking440] #841097 11/01/10 03:18 PM 11/01/10 03:18 PM
Joined: Nov 2004 Posts: 6,890 North Alabama M Monte_Smith master
Monte_Smith master M Joined: Nov 2004 Posts: 6,890 North Alabama	Radial cars with big HP are HARDER on parts than slicks.....You run radials, so you know they are only fast when you dead hook them. You can slip a slick and still go down, but not a drag radial. Chad's car has the best of the best for parts, but it twists 40 spline axles, breaks planetaries, bends housings, twists the splines in Strange billet yokes and is just generally HARD on parts. High HP drag radial cars are just rough on parts. That said, I would NOT have a 727 in one. Monte

Re: turbo transmission [Re: Monte_Smith] #841098 11/01/10 03:34 PM 11/01/10 03:34 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 Lunch is on me!
joshking440 Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	Damn it MONTE....quit peeing in my wheaties.

Re: turbo transmission [Re: joshking440] #841099 11/01/10 03:52 PM 11/01/10 03:52 PM
Joined: Nov 2004 Posts: 6,890 North Alabama M Monte_Smith master
Monte_Smith master M Joined: Nov 2004 Posts: 6,890 North Alabama	Quote: Damn it MONTE....quit peeing in my wheaties. ...............lol.....sorry Dude, but I would hate to see you hobbling around on crutches and I know Shuler probably won't be willing to carry you. Monte

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