2800 converter work ok with 224R cam?
06-06-2013, 07:04 PM
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2800 converter work ok with 224R cam? Probably gonna need to have stock converter replaced this weekend. As title states, will a mild converter (2800/3000) work ok with my 224/224 camshaft? Kinda want to stay with a mild converter and a cooler to keep 4L60E alive as long as possible. Thanks for any replies.
06-06-2013, 07:25 PM
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I don't see why it wont work out just fine. Go with a 3k and it should be relatively easy on the trans. That's a small cam so it don't necessarily need a huge stall or a ton of rpm to work good and keep drivetrain alive. Also depends on your driving style
06-06-2013, 08:37 PM
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It will work, but a higher stall speed will make more of
the cam's powerband. Narrow LSA might like the small
converter better than a wide LSA, because torque is
pushed lower in RPM. But really you'll like a higher stall
speed better once the motor is built out.
Stall speed is not going to make a difference to trans
durability. STR will directly affect the torque applied
to the input shaft. A stall speed that puts you on
peak torque, and a STR that multiplies it hugely, that
will be stressful. But your torque band probably
extends down to the 2500-3000RPM you could foot-
brake that small converter to. Its STR is liable to be
lowish relative to others.
What you'll probably find is that the converter
"lays over" and quits multiplying torque somewhere
about 4500-5000RPM, and pulls your RPM down a lot
across the shifts. That's tolerable for a stock motor
that's already running out of air and ready to shift.
If you build it to rev and to shift at 6500RPM, you
want to favor that with converter choice. If you
are scared of durability, look for a lower STR among
your choices (which will also give you a wider band
of torque multiplication, and less down low where
you can't hook it up anyway).
the cam's powerband. Narrow LSA might like the small
converter better than a wide LSA, because torque is
pushed lower in RPM. But really you'll like a higher stall
speed better once the motor is built out.
Stall speed is not going to make a difference to trans
durability. STR will directly affect the torque applied
to the input shaft. A stall speed that puts you on
peak torque, and a STR that multiplies it hugely, that
will be stressful. But your torque band probably
extends down to the 2500-3000RPM you could foot-
brake that small converter to. Its STR is liable to be
lowish relative to others.
What you'll probably find is that the converter
"lays over" and quits multiplying torque somewhere
about 4500-5000RPM, and pulls your RPM down a lot
across the shifts. That's tolerable for a stock motor
that's already running out of air and ready to shift.
If you build it to rev and to shift at 6500RPM, you
want to favor that with converter choice. If you
are scared of durability, look for a lower STR among
your choices (which will also give you a wider band
of torque multiplication, and less down low where
you can't hook it up anyway).
06-06-2013, 09:46 PM
#6
I wouldnt waste the time on a 2800-3000.3200 at Least if your on a budget and if not put at least a 3600-3800. Been there done that. The 3200 helps but after driving a week you wont know its in there. Lockup convertor is your friend.
06-06-2013, 09:58 PM
#7
With a 224 cam you'll be good with a 3200 stall. If you go 28-3000 you'll regret it and wish you went bigger. As long as you get a good cooler and tune your trans will be good. Heat is the main killer of the 4l60e and a higher stall converter will run hotter than stock. As long as its kept cool it'll last a while.
