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Re: recommend me a quality street/strip converter [Re: Diplomat360] #3112124
01/15/23 01:03 PM
01/15/23 01:03 PM
Joined: Jan 2003
Posts: 8,156
Plymouth, MI
Blusmbl Offline
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Originally Posted by Diplomat360
My 9.5" 4k stall Dynamic is a great WOT piece and actually feels pretty nice on the street as well...but the throttle crispness I felt with the previous 2800 stall is long gone...wouldn't mind some of that back...and a fluid change is a worthy (and a fairly inexpensive) experiment!


I have a 9" Ultimate in my car, and it works well for the gearing and camshaft, I have no complaints but it definitely isn't crisp like a stocker. I was worried on nitrous it was going to change the stall speed too much, so I tried switching from conventional type F to ATI's 30 weight synthetic type F. Just the fluid change dropped stall speed by ~200 rpm, it doesn't feel appreciably different on the street. Worthy experiment for sure but don't expect much from the fluid change. It's my understanding the JD fluid is ~30 weight.


'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
Re: recommend me a quality street/strip converter [Re: dvw] #3112160
01/15/23 03:41 PM
01/15/23 03:41 PM
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Dandridge TN
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Dabee Offline
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Originally Posted by dvw
PTC makes a very good reasonably priced street strip converter. Call Kenny Ford 256 383 6868
Doug


I second that. Had a PTC behind the 512 in my Super Bee. Call kenny, give him car and engine info including cam specs. Also used PTC in all my drag cars never had one problem.

Re: recommend me a quality street/strip converter [Re: Diplomat360] #3112271
01/15/23 09:44 PM
01/15/23 09:44 PM
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Benton, IL.
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DaveRS23 Offline
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Get as large a tranny cooler as you can, keep the fluid out of the radiator, and run the regular Hy Gard. I even insulate the tranny lines next to the engine to limit the amount of heat that they might otherwise pick up there. The cooler than optimum temps will not do anything bad to our trannies. We just don't drive them enough to. That came from Lenny and is the way I have driven my cars for years now. And the only reason to add any ATF is to give the fluid some color that makes it a little easier to read on the dip stick. Otherwise it is not necessary. I don't add ATF, I just put some baby powder on the stick to read the level. thumbs

https://jdparts.deere.com/partsmkt/...draulic.htm#_Hy-Gard_and_low-viscosity_1


Master, again and still
Re: recommend me a quality street/strip converter [Re: DaveRS23] #3112328
01/15/23 11:48 PM
01/15/23 11:48 PM
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Posts: 43,007
Bend,OR USA
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Originally Posted by DaveRS23
Get as large a tranny cooler as you can, keep the fluid out of the radiator, and run the regular Hy Gard. I even insulate the tranny lines next to the engine to limit the amount of heat that they might otherwise pick up there. The cooler than optimum temps will not do anything bad to our trannies. We just don't drive them enough to. That came from Lenny and is the way I have driven my cars for years now. And the only reason to add any ATF is to give the fluid some color that makes it a little easier to read on the dip stick. Otherwise it is not necessary. I don't add ATF, I just put some baby powder on the stick to read the level. thumbs

https://jdparts.deere.com/partsmkt/...draulic.htm#_Hy-Gard_and_low-viscosity_1

Me thinks there is a lot of misinformation made here, Dave tsk
If your making over 700 HP then maybe this applies to your parts, I've been told by more than one good west coast tranny builders to have at least 160 F fluid temps on street drivers, not clder tsk
Their recommendations were from 160 F up to 260 F, replace it if it starts to turn from bright red to dark red or brown or black. twocents
I ran a tranny temp gauge in my last S/P car with a glide and a 5800 RPM stall converter shifting it at 7000 RPM that ran in the high eights in the 1/4 mile at 150.+ MPH, iI had decent tranny cooler on it mounted under the floor and the temps would get up to 170 F on the return rode driving back to the pits.
It wouldn't get as much heat in it at the 1/8 mile local track, maybe up to 150 to 170F in the summer after several runs shruggy
A1 said to change the fluid after 25 runs and adjust the front band at the same time, I did that for over 6 years and had no problems with it boogie

Last edited by Cab_Burge; 01/15/23 11:50 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: recommend me a quality street/strip converter [Re: Cab_Burge] #3112400
01/16/23 07:40 AM
01/16/23 07:40 AM
Joined: Jan 2003
Posts: 8,005
Tulsa OK
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Street driving with my 4500 8" and a "normal" sized stacked plate cooler temp is never a concern. I have seen 200 degrees one time and it was in a massive 5 lane traffic jam that was idle speed and crawling for almost 2 hours. Everything was hot at that moment. Engine 210, trans 200, fuel 135, angry fuel pumps, and and angry passengers lol but we made it.

That is with the temp sensor in the pan. If you really want to terrify yourself put the sensor in the hot line going to the cooler....yikes lol.


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: recommend me a quality street/strip converter [Re: Cab_Burge] #3112456
01/16/23 11:31 AM
01/16/23 11:31 AM
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Benton, IL.
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DaveRS23 Offline
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So Lenny was wrong with his advice? And my experience with his advice didn't happen? But you didn't list any personal experience with this combo. Does that mean that you have no actual first hand knowledge with it? And your references appear to be more about very different combos and in different applications than I am referencing. I have ran this combo on several cars and combinations for years. And despite my best efforts, the trannies usually get to 160* or so with much driving time. FYI: None of my combos made over "700 HP".

Now for daily driver vehicles where you expect to put tons and tons more miles than we are talking about with our dinosaurs, I completely agree with your parameters with one minor exception, 180* rather than 160* for a preferred minimum. But the OP asked a question about a particular situation that I have a good amount of experience with. And I only offered the advise that I was given by an acknowledged converter expert and my experiences with that advice. If that advice and experience is even going the direction that the OP wants. Also, I am not suggesting that you and everyone else follow this. It is very application and preference specific.

I think it is very unfortunate that you disparage something that you apparently have no experience with and only go by 'what you have been told' vs your personal experience.

What exactly are you saying would happen to a street car tranny like the OP's should he decide to run the combination that I have? Or in my case, what should have happened to mine?


Master, again and still
Re: recommend me a quality street/strip converter [Re: DaveRS23] #3112655
01/16/23 07:45 PM
01/16/23 07:45 PM
Joined: Jul 2005
Posts: 1,624
qc
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mxbeep Offline OP
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Thanks to all for your inputs, your comments and suggestions have all been very helpfull in helping me make a better decision

Re: recommend me a quality street/strip converter [Re: mxbeep] #3112679
01/16/23 08:51 PM
01/16/23 08:51 PM
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new jersey usa
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11secdart Offline
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new jersey usa
A few years ago I was going to buy an ‘ off the shelf “ type converter from like Jegs or Summit for the 518 in my 15 second D150. I called Lenny at Ultimate he told me to send him my stock lock up converter and he would go thru it . He did, I installed it and dropped my 60 ft. times by a tenth and a half … your results may very

E03E1EEE-98FD-410E-BEF1-BE12BC6FD43F.jpeg
Last edited by 11secdart; 01/16/23 09:27 PM.

68 Dart 410 / 904
92 D150 original owner
21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4
23 Audi Q5
16 Honda HRV
Re: recommend me a quality street/strip converter [Re: 11secdart] #3112737
01/16/23 10:23 PM
01/16/23 10:23 PM
Joined: Feb 2006
Posts: 267
New Jersey
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69Chrgr Offline
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Lenny doesn't own Ultimate Converters anymore. A couple Super Stock guys have not been happy with work that's been done out of there since. I would call Frank Lupo at Dynamic in DE. He just did a 'J' converter for my friend with a 620hp 440 stroker.

Re: recommend me a quality street/strip converter [Re: DaveRS23] #3112759
01/16/23 11:52 PM
01/16/23 11:52 PM
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Bend,OR USA
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My response is based on my result s following the tranny builders advice and then switching to standard petroleum based Valvoline Type F fluids away from some of the "magic mystery fluids" that some of the other tranny company recommend, my old pump gas Duster my last S/P car both picked up .2 ET and .5 MPH in the 1/8 mile with no other changes shruggy
Warming up the tranny fluids to at least 140 F before coming out of the staging lanes helped a bunch on the ET and 60 Ft. times, warm fluid moves easier and quicker than cooler fluids do with less friction: work:


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: recommend me a quality street/strip converter [Re: Cab_Burge] #3112818
01/17/23 10:03 AM
01/17/23 10:03 AM
Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
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Marion, South Carolina [><]
There are lot of options for a good converter out there. I use Atlantic Coast Converters. They've always done good for me. They used to run a couple of NHRA SS cars.

Just to comment on the JD HyGard fluid. I've been told by a couple of reputable trans and converter builders NOT to run that stuff. They both said if you need to run the thick fluid, then the converter isn't right and needs to be adjusted. They don't like the lubricating properties of that fluid in a high rpm application. twocents


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: recommend me a quality street/strip converter [Re: an8sec70cuda] #3112827
01/17/23 10:45 AM
01/17/23 10:45 AM
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new jersey usa
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11secdart Offline
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I thought Lenny still worked there on a consultant basis... Thanks for the info


68 Dart 410 / 904
92 D150 original owner
21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4
23 Audi Q5
16 Honda HRV
Re: recommend me a quality street/strip converter [Re: an8sec70cuda] #3112828
01/17/23 10:45 AM
01/17/23 10:45 AM
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Yes
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You can have five different converters built by five different companies and they will all perform different. If you're chasing ET, then have at it. If it's "just a street/strip car", then anyone recommended here will be just fine.

I've ran TCI, Hughes, B&M, ATI, T/A, and Select. I send all of my stuff to Select now when it needs built or freshened.

Re: recommend me a quality street/strip converter [Re: Cab_Burge] #3112851
01/17/23 11:48 AM
01/17/23 11:48 AM
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Benton, IL.
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DaveRS23 Offline
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Originally Posted by Cab_Burge
My response is based on my result s following the tranny builders advice and then switching to standard petroleum based Valvoline Type F fluids away from some of the "magic mystery fluids" that some of the other tranny company recommend, my old pump gas Duster my last S/P car both picked up .2 ET and .5 MPH in the 1/8 mile with no other changes shruggy
Warming up the tranny fluids to at least 140 F before coming out of the staging lanes helped a bunch on the ET and 60 Ft. times, warm fluid moves easier and quicker than cooler fluids do with less friction: work:


Cab, you are right for what you want your converter to do. But the OP says; " i also am looking for a fairly ''tight'' converter that i can drive around town or the highway at 2400-2600 rpm without slipping." That is a different application than you are describing. What I am suggesting may not be best for the track (which you keep referring to) but could help the OP in his clearly stated street oriented goals.


Master, again and still
Re: recommend me a quality street/strip converter [Re: sixpakdodge] #3112874
01/17/23 01:50 PM
01/17/23 01:50 PM
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Missouri
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jwb123 Offline
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Originally Posted by sixpakdodge
You can have five different converters built by five different companies and they will all perform different. If you're chasing ET, then have at it. If it's "just a street/strip car", then anyone recommended here will be just fine.

I've ran TCI, Hughes, B&M, ATI, T/A, and Select. I send all of my stuff to Select now when it needs built or freshened.


YEP, and everyone of those five companies will recommend a different combo at least that is my experience. Just pick a reputable company to work with. Street strip not a big deal, drag strip, you may need to send it back several times to get it perfect. Then you change something on the car and start all over again, at least that is my experience.

Re: recommend me a quality street/strip converter [Re: jwb123] #3113015
01/17/23 09:30 PM
01/17/23 09:30 PM
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aZLiViN
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Originally Posted by jwb123
Originally Posted by sixpakdodge
You can have five different converters built by five different companies and they will all perform different. If you're chasing ET, then have at it. If it's "just a street/strip car", then anyone recommended here will be just fine.

I've ran TCI, Hughes, B&M, ATI, T/A, and Select. I send all of my stuff to Select now when it needs built or freshened.


YEP, and everyone of those five companies will recommend a different combo at least that is my experience. Just pick a reputable company to work with. Street strip not a big deal, drag strip, you may need to send it back several times to get it perfect. Then you change something on the car and start all over again, at least that is my experience.


Drag strip I keep the best one and buy another to play with smile

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