Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

How to make T56 hold up in high HP cars.

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Old 09-21-2012, 03:25 PM
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So what about some sort of nozzle that applied a spray with a horizontal spread rather than a simple round squirt ? Then it could be positioned to spray into a few gearsets rather than just aiming at a specific set ?

Are there any guides as to exactly where to drill and position the jet ?

Do you just run the pump all the time ?
Old 09-21-2012, 03:40 PM
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post 1 to 80 covers all that, there no right or wrong way. Looks like the same idea is working, its all DIY some guys do what works better for them. I'm just putting a switch on the gas pedal so over 80% the pump sprays. RPM drilled the hole for me, and welded the case up a little to thicken it for good thread depth.

I found this article with some info and pics I htink this is the factory c6 pump?
http://rktperformance.com/why-upgrad...mission-build/

this thread has pics of a setup (overkill on the fittings) other then the feed line have the big uphill loop I wouldn't use it like that.
http://thevipergarage.com/index.php?topic=1256.30

Last edited by studderin; 09-21-2012 at 04:10 PM.
Old 09-21-2012, 03:47 PM
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Originally Posted by stevieturbo
So what about some sort of nozzle that applied a spray with a horizontal spread rather than a simple round squirt ? Then it could be positioned to spray into a few gearsets rather than just aiming at a specific set ?

Are there any guides as to exactly where to drill and position the jet ?

Do you just run the pump all the time ?
buy my setup!! all you need is a small pipe to spray the gearsets
Old 09-21-2012, 03:48 PM
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Originally Posted by studderin
post 1 to 80 covers all that
I can see a picture of one persons setup with a fitting drilled into the casing at a low location.

I dont see any images of exactly how this corresponds to where the gears may mesh in terms of alignment.
Old 09-21-2012, 03:51 PM
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Originally Posted by djfury05
buy my setup!! all you need is a small pipe to spray the gearsets

If I do it, I dont need to be buying stuff from 5000 miles away I'm afraid. I'll just source the parts locally.
Old 09-21-2012, 04:30 PM
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Originally Posted by stevieturbo
If I do it, I dont need to be buying stuff from 5000 miles away I'm afraid. I'll just source the parts locally.
It is all brand new...
Old 09-21-2012, 04:56 PM
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blue99fbody RPM trans, I have the same setup
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never mind that bearing


check out the vid I posted of the pump test run last page

Last edited by studderin; 09-21-2012 at 05:06 PM.
Old 09-21-2012, 05:18 PM
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Cheers, also found some pics online of the internals and where would be best placed for jets.

Seems quite low like you have it is about the best spot.
Old 09-21-2012, 06:42 PM
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Originally Posted by studderin
thanks for this pic man.

Hows the lines going over the Ypipe been? Any trouble with heat? I have the lighter nylon hose so not looking to do that. Even with heat socks on the line over the exhaust. But that spot looks good for working on the car, you can do alot without removing the pump.


I'm looking form a good place to mount the pump (same tilton) Its bigger then the sts style little on speedrace used.
On the side of the trans I can get it away for the Exhust running it front to back along the trans (its not gona fit up/dpwn without being lower then my headers that hit) just a head of the fuel line were it jogs on the tunnel. But thats gona get it the way of bleeding the clutch a little. And it blocks the fill hole The other side is tight too, it would be close to the header. I kinda think I could mount it on the T56? Not sure about drilling 2-3 holes into it and tapping them. Or drilling a clearance hole in the webbing and nut/bolting the bracket on.


Do you set the fuild level with the pump on?
ya guess i dont have a pic of it but i heat wraped the y pipe where the line runs over it and wraped heat tape around the line so heat hasnt been an issue. and i just put 4 1/2 qts in.


Originally Posted by studderin
post 1 to 80 covers all that, there no right or wrong way. Looks like the same idea is working, its all DIY some guys do what works better for them. I'm just putting a switch on the gas pedal so over 80% the pump sprays. RPM drilled the hole for me, and welded the case up a little to thicken it for good thread depth.

I found this article with some info and pics I htink this is the factory c6 pump?
http://rktperformance.com/why-upgrad...mission-build/

this thread has pics of a setup (overkill on the fittings) other then the feed line have the big uphill loop I wouldn't use it like that.
http://thevipergarage.com/index.php?topic=1256.30
i chose to go with the toggle instead of a wot switch so i can turn it on and hear/know its running instead of it coming on when the sound of the car was over powering the sound of the pump and i wouldnt know if there was an issue of the pump not coming on or something till its to late.
Old 09-21-2012, 07:23 PM
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ya true. I was thinking maybe wiring it direct so I can test it with the car off to make sure the switch and everything is working too.

I'm probably gonna mount it were you have it outside the Ypipe, on that LT1 cat spot hump. that's easy to work on the car with it ther out of the way of the trans, and drivetrain. But to clear my max power muffler setup, I have to test mock up.

And the pump is just 3/8 NPT so I might make up some 3/8 brake line and run some steel line off the pump and get the lines over by the tunnel tight on the floor, over the exhust. I dont want to set it up with the light nylon black ProClassic line running over the exhaust. Thats gonna be bad if that hose ever gets loose or something and touches, when it gets hot WOT..... F that


Then loose flair nut and flair the lines, and put a 3/8 double flair seat brass fitting to 3/8 npt. then put my 3/8npt to -6 AN fitting on that.
Or see if I can get steel -6 an ends I can weld right on the lines. Think Newera might have some for N20 stuff, I can grab tomarrow,
Old 09-22-2012, 02:20 AM
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I would nearly be inclined just to use some -3 or -4 fittings into the box, and direct oil at the input shaft interface and 1-2 gears too.
1-2 seem pretty close together, so could be achieved with a single fitting





Old 09-22-2012, 08:05 AM
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Originally Posted by djfury05
If anyone is looking for a complete unused setup for this stuff I have one just sitting here in the box. I just don't see it going on my car for awhile so no point in having it here. Pm me if interested .

How much? What all exactly do you have? What pump?
Shoot me a PM if you'd like. Thanks, Todd.
Old 09-22-2012, 05:08 PM
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damn I am glad my trans held up without an issue. and its in another guys car and shift 10 times better with a centerforce DFX in front of it, than it did trying to shift with a Sof Loc clutch. I am pretty sure if I could of gotton the car to 60ft like it did with the Sof loc, but actually have a clutch that let me shift going down track, I bet a 8.60's range wouldn't have been out of the question.

I sure do miss banging those gears! dont miss messing with the trans and clutch all the time and not being able to focus on the chassis and other things.
Old 09-23-2012, 03:51 PM
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^^^ I'm with ya there! Never had any issues with my tranny either. I wish I still had my entire setup up and going. There was ALOT left in it and I never pushed it hard.

I'm still gonna be banging gears sometime in the next bit though, I upgraded to a GTO tranny that I'm putting the 32spline SSR mainshaft in. Hopefully I can get the turbo spooled with a 2step and some fuel/timing trickery.
Old 09-28-2012, 07:33 AM
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https://ls1tech.com/forums/drag-raci...l#post16763979

pics of my pump setup
Old 09-28-2012, 08:01 AM
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Very neat. The pumps all look quite big. Has anyone used this newer more compact pump ?

http://www.merlinmotorsport.co.uk/p1...duct_info.html

I dont think they create a lot of pressure, although it shouldnt need to for this application.

Claims about 8psi at 160 litres per hour. Which is a lot of flow.
Old 09-26-2013, 10:25 PM
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If anyone is looking for one of these setups mine is for sale BNIB never used. Deeply discounted from new.

https://ls1tech.com/forums/parts-cla...nge-setup.html
Old 09-30-2013, 09:11 PM
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I may have somehow missed it but at what point or power level would this type of upgraded be needed?
Old 10-12-2013, 08:33 PM
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Some good info and links in this thread
Old 10-13-2013, 02:18 PM
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at what level is this REALY needed? i built my own custom t56 but didnt add the circulator thinking it wasnt really gonna be needed at my power level... expected 550-650hp ls7


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