tq converter stall?
tq converter stall?
I am thinking that i am going to use the aw4 in my jeep and make a adapterplate to it and use the 617 flexplate could i ues the stock converter since the 617 is a high reving engine or should i get a custom one build? if so what kind of rpm stall should i get i think if it is a little higher it would help with turbo lag
In 1985 the stall speed was changed to 2400 - 2700 rpms for quicker acceleration.
For your application, I would try to get a stock Federal '85 torque converter (the Cali version will not fit in a 722.3xx trans) or have your old torque converter rebuilt in that range. That would put you in the sweet spot.
Gota love Mercedes Diesels!
.
DeliveryValve
06-26-2009, 02:50 PM #2The pre 1985 617 turbo used a torque converter with a stall speed around 1450 - 1650 rpms.
In 1985 the stall speed was changed to 2400 - 2700 rpms for quicker acceleration.
For your application, I would try to get a stock Federal '85 torque converter (the Cali version will not fit in a 722.3xx trans) or have your old torque converter rebuilt in that range. That would put you in the sweet spot.
Gota love Mercedes Diesels!
.
(06-26-2009, 02:50 PM)DeliveryValve The pre 1985 617 turbo used a torque converter with a stall speed around 1450 - 1650 rpms.
In 1985 the stall speed was changed to 2400 - 2700 rpms for quicker acceleration.
For your application, I would try to get a stock Federal '85 torque converter (the Cali version will not fit in a 722.3xx trans) or have your old torque converter rebuilt in that range. That would put you in the sweet spot.
this will be for transplanting 617 into a 91 cherokee and using the stock automatic
(06-26-2009, 02:50 PM)DeliveryValve The pre 1985 617 turbo used a torque converter with a stall speed around 1450 - 1650 rpms.
In 1985 the stall speed was changed to 2400 - 2700 rpms for quicker acceleration.
For your application, I would try to get a stock Federal '85 torque converter (the Cali version will not fit in a 722.3xx trans) or have your old torque converter rebuilt in that range. That would put you in the sweet spot.
this will be for transplanting 617 into a 91 cherokee and using the stock automatic
let me rephrase, since english is not my 1st language, perheps i was unclear with question.
what is ratio of torq on shaft of gearbox, when gearbox shaft is in is not rotating and engine is rotating,
that is standard parametar for torq converter supplied by designer/manufacturer, usualy its around 1.3 times of crankshaft torq, (with
rpm diff).
it is representing maximum ammount of torque increase ONLY by TC itself on expense of rpm diff of in/out shafts of TC itself.
where relative diff of rpm from in/out shafts are in peek effitiancy of TC.
it is standard parametar supplied by constrctor (thats where its name comes from 'torque converter') ...
thnx again, and sry if i was unclear with term i have used.
i am sry, forcedinduction, i have asked about ratio for torque...
let me rephrase, since english is not my 1st language, perheps i was unclear with question.
what is ratio of torq on shaft of gearbox, when gearbox shaft is in is not rotating and engine is rotating,
that is standard parametar for torq converter supplied by designer/manufacturer, usualy its around 1.3 times of crankshaft torq, (with
rpm diff).
it is representing maximum ammount of torque increase ONLY by TC itself on expense of rpm diff of in/out shafts of TC itself.
where relative diff of rpm from in/out shafts are in peek effitiancy of TC.
it is standard parametar supplied by constrctor (thats where its name comes from 'torque converter') ...
thnx again, and sry if i was unclear with term i have used.
I haven't seen any official figures from Mercedes, but when converting from automatic to manual transmission I went from 160lb/ft to 135lb/ft torque. So around 1.2:1 is my answer.
ForcedInduction
04-25-2010, 09:37 PM
#7
Torque multiplication, I understand you now.
I haven't seen any official figures from Mercedes, but when converting from automatic to manual transmission I went from 160lb/ft to 135lb/ft torque. So around 1.2:1 is my answer.
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