300D Turbo trans mods.
300D Turbo trans mods.
Blackstack
02-17-2011, 01:06 PM #1What does it take to get a stock auto trans. to hold up behind a modified OM617? I'm one of those guys that would just as soon have an auto vs. a manual gear box. I'm starting in on my project and am just planning for the future here. Can they be made to take 300-350 HP? What can you do as far as making it into a manual shift valve body?
I have the 722.120 supposedly the weakest trans. I didn't have a problem with it slipping but I think had the pressure turned up to high and I physically cracked the case. The trans still actually worked but it leaked fluid like crazy.
I think I turned the modulator in to much 4+ turns iirc.
You can increase the pressure in the trans by turning in the modulator (clockwise) a few clicks at a time. I would go max of 2 turns now that I split mine lol.
FYI 300-350 isn't easy or cheap with a om617.
Were talking big turbo, big pump 8mm+, ~40psi boost.
-Jesse
80 300sd hy35, front mount intercooler, w115 intake, rack limiter removed, Alda removed, full load turned up, boost, ebp, trans, pyro, egr delete, 3.5" exhaust, e-fan, 16x8 rims with, 245/50 tires, lowered, bilstien 5100's, 12" front brakes, 2.65:1 diff.
97 f250 psd 4x4, crawler
70 f250 390
83 Volvo 242, lots of mods
66 Volvo amazon
10 mistsubishi fuso service truck.
There are several different transmissions put behind the 617. There is a part # with a 722.xxx number that will tell you your version.
I have the 722.120 supposedly the weakest trans. I didn't have a problem with it slipping but I think had the pressure turned up to high and I physically cracked the case. The trans still actually worked but it leaked fluid like crazy.
I think I turned the modulator in to much 4+ turns iirc.
You can increase the pressure in the trans by turning in the modulator (clockwise) a few clicks at a time. I would go max of 2 turns now that I split mine lol.
FYI 300-350 isn't easy or cheap with a om617.
Were talking big turbo, big pump 8mm+, ~40psi boost.
-Jesse
80 300sd hy35, front mount intercooler, w115 intake, rack limiter removed, Alda removed, full load turned up, boost, ebp, trans, pyro, egr delete, 3.5" exhaust, e-fan, 16x8 rims with, 245/50 tires, lowered, bilstien 5100's, 12" front brakes, 2.65:1 diff.
97 f250 psd 4x4, crawler
70 f250 390
83 Volvo 242, lots of mods
66 Volvo amazon
10 mistsubishi fuso service truck.
There isn't anything, currently, to make the valve body a full manual. As stock it works as a semi-manual with L limiting to 2nd, and S to 3rd. The closest thing is a shift correction kit that will set the firmness for each shift.
http://transmissiontechnologies.com/supe...ports.aspx
ForcedInduction
02-17-2011, 05:53 PM
#3
The first thing you need to do is get it up to spec, which means getting a gauge, adjusting the modulator pressure correctly and making sure the governor pressure is correct. The transmission will not hold more than ~225hp without the clutches and brake bands slipping. Adjusting the modulator pressure too high will just make shifting hard.
There isn't anything, currently, to make the valve body a full manual. As stock it works as a semi-manual with L limiting to 2nd, and S to 3rd. The closest thing is a shift correction kit that will set the firmness for each shift.
http://transmissiontechnologies.com/supe...ports.aspx
1990 Power Ram 50 V6 SOHC 24V 6g72
I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
So nobody makes a shift kit for the old beasts? I'll have to rip into the trans I have and see...
1990 Power Ram 50 V6 SOHC 24V 6g72
I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
(02-17-2011, 03:08 PM)dieselboy There are several different transmissions put behind the 617. There is a part # with a 722.xxx number that will tell you your version.
I have the 722.120 supposedly the weakest trans. I didn't have a problem with it slipping but I think had the pressure turned up to high and I physically cracked the case. The trans still actually worked but it leaked fluid like crazy.
I think I turned the modulator in to much 4+ turns iirc.
You can increase the pressure in the trans by turning in the modulator (clockwise) a few clicks at a time. I would go max of 2 turns now that I split mine lol.
FYI 300-350 isn't easy or cheap with a om617.
Were talking big turbo, big pump 8mm+, ~40psi boost.
Quote:FYI 300-350 isn't easy or cheap with a om617.
Were talking big turbo, big pump 8mm+, ~40psi boost.
Yup, and head/cam work, fabricated intake/exhaust manifold, intercooler, water/meth injection etc. etc. I'm just planning 1-2 years out.
Blackstack
02-17-2011, 06:27 PM #5(02-17-2011, 03:08 PM)dieselboy There are several different transmissions put behind the 617. There is a part # with a 722.xxx number that will tell you your version.
I have the 722.120 supposedly the weakest trans. I didn't have a problem with it slipping but I think had the pressure turned up to high and I physically cracked the case. The trans still actually worked but it leaked fluid like crazy.
I think I turned the modulator in to much 4+ turns iirc.
You can increase the pressure in the trans by turning in the modulator (clockwise) a few clicks at a time. I would go max of 2 turns now that I split mine lol.
FYI 300-350 isn't easy or cheap with a om617.
Were talking big turbo, big pump 8mm+, ~40psi boost.
Quote:FYI 300-350 isn't easy or cheap with a om617.
Were talking big turbo, big pump 8mm+, ~40psi boost.
Yup, and head/cam work, fabricated intake/exhaust manifold, intercooler, water/meth injection etc. etc. I'm just planning 1-2 years out.
I'm getting ready to send my slush box out for some new internals and a converter, is there a better converter out there and if there is does it have a higher or lower stall? I can get anything made if I need to put a couple of different converters together but maybe there is somthing out there.
(03-01-2011, 12:21 AM)Motorhead I'm getting ready to send my slush box out for some new internals and a converter, is there a better converter out there and if there is does it have a higher or lower stall? I can get anything made if I need to put a couple of different converters together but maybe there is somthing out there.
http://www.superturbodiesel.com/std/high...-1633.html
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
03-03-2011, 05:04 PM #7(03-01-2011, 12:21 AM)Motorhead I'm getting ready to send my slush box out for some new internals and a converter, is there a better converter out there and if there is does it have a higher or lower stall? I can get anything made if I need to put a couple of different converters together but maybe there is somthing out there.
http://www.superturbodiesel.com/std/high...-1633.html
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
(03-03-2011, 05:04 PM)Captain America(03-01-2011, 12:21 AM)Motorhead I'm getting ready to send my slush box out for some new internals and a converter, is there a better converter out there and if there is does it have a higher or lower stall? I can get anything made if I need to put a couple of different converters together but maybe there is somthing out there.
http://www.superturbodiesel.com/std/high...-1633.html
Thanks man, I found the thread after posting. I will try a place I found in Anaheim and see if they can build a hybrid, I think 1,800 to 1,900 would get me off the line.
(03-03-2011, 05:04 PM)Captain America(03-01-2011, 12:21 AM)Motorhead I'm getting ready to send my slush box out for some new internals and a converter, is there a better converter out there and if there is does it have a higher or lower stall? I can get anything made if I need to put a couple of different converters together but maybe there is somthing out there.
http://www.superturbodiesel.com/std/high...-1633.html
Thanks man, I found the thread after posting. I will try a place I found in Anaheim and see if they can build a hybrid, I think 1,800 to 1,900 would get me off the line.
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