Manual Steering rack - anyone use them
Mar 15, 2017, 10:01 AM
#4
I'm not sure really. But one thing to think about is your battery also has capacity, and what is its discharge rate. You'd basically need enough power between alt output and battery to get up the hill and not drop under ~50% battery. Then when you're done and power needs have dropped, the battery can charge back up cruising back down the hill.
It might even be good to have a separate small battery to power something like the pump and act as a capacitor for it.
It might even be good to have a separate small battery to power something like the pump and act as a capacitor for it.
Mar 15, 2017, 11:41 AM
#6
^ it's not that bad, you almost don't even notice when the car is rolling and if you're taking out the ps then you probably have lots more weight shaved off the front which doesn't make the car so nose heavy. My friends Fd feels almost the same as my evo without ps. It's definitely worth it too, besides weight saving the feel/control on the road or track increases tenfold. Going back to power steering makes me wonder how people race with it's disability lol
Mar 15, 2017, 11:46 AM
#7
EvoM Guru
iTrader: (1)
I wouldn't want a manual rack in a car like the evo, especially for twisty work.
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Mar 15, 2017, 12:33 PM
#10
EvoM Guru
iTrader: (1)
You do it trophy truck style and run an auxiliary alternator off the drive shaft. Just need to be able to disable it below a certain speed so it doesn't burn up.
Mar 15, 2017, 01:57 PM
#11
EvoDan2004 had a manual steering rack that saved more than 15lbs and felt great even at a stand still, but the gearing to make it that easy made your steering 3.25 turns lock to lock.
Original thread:
https://www.evolutionm.net/forums/ev...s-lighter.html
Original thread:
https://www.evolutionm.net/forums/ev...s-lighter.html
Mar 15, 2017, 02:36 PM
#12
EvoM Guru
iTrader: (1)
3.25 lock-to-lock isn't bad. That's only a little more than an extra 1/2 turn from center to lock.
Mar 15, 2017, 02:57 PM
#13
A comment was made above that our electrical system is already taxed. What are you basing that off of? How much current does an electric steering box pull? Any more than an electric water pump?
I recall seeing a thread where R/TErnie IIRC was having a higher amp alternator built. Whatever came of this? Weren't there reliability issues with those units? Just seems like a higher AMP alternator is the easy button here and then you dont have to worry about it.
If not an aux alternator(how are you powering that?) or maybe an additional battery wouldnt be a bad idea. Only catch with the battery is how long can you go before it runs out of juice?
I recall seeing a thread where R/TErnie IIRC was having a higher amp alternator built. Whatever came of this? Weren't there reliability issues with those units? Just seems like a higher AMP alternator is the easy button here and then you dont have to worry about it.
If not an aux alternator(how are you powering that?) or maybe an additional battery wouldnt be a bad idea. Only catch with the battery is how long can you go before it runs out of juice?
Mar 15, 2017, 07:50 PM
#14
A comment was made above that our electrical system is already taxed. What are you basing that off of? How much current does an electric steering box pull? Any more than an electric water pump?
I recall seeing a thread where R/TErnie IIRC was having a higher amp alternator built. Whatever came of this? Weren't there reliability issues with those units? Just seems like a higher AMP alternator is the easy button here and then you dont have to worry about it.
If not an aux alternator(how are you powering that?) or maybe an additional battery wouldnt be a bad idea. Only catch with the battery is how long can you go before it runs out of juice?
I recall seeing a thread where R/TErnie IIRC was having a higher amp alternator built. Whatever came of this? Weren't there reliability issues with those units? Just seems like a higher AMP alternator is the easy button here and then you dont have to worry about it.
If not an aux alternator(how are you powering that?) or maybe an additional battery wouldnt be a bad idea. Only catch with the battery is how long can you go before it runs out of juice?
Typically you don't want to use electrical comments at more than 80% rated capacity for extended periods of time
90x.8 = 72 amp
Two fuel pumps - 15amp each
Two fans - 20amp each
That's 70 amps right there.
Plus acd pump - ??amp
Then what ever it takes to run the car.
It looks like electrical PS pumps are around 4amp
Mar 16, 2017, 05:16 AM
#15
^^ i think we need to look into putting a controller on our fuel pumps or maybe stage them in the tuning. having both of them running full blast all the time is pretty unnecessary and probably creates fuel heating issues...
and stage the fans obviously. having two or 3 tiny batteries should pick up the slack in the electrical demand. and keep in mind, the 80% rule of thumb is for continuous loads. a load isn't considered continuous until it runs for 3+ hours
and stage the fans obviously. having two or 3 tiny batteries should pick up the slack in the electrical demand. and keep in mind, the 80% rule of thumb is for continuous loads. a load isn't considered continuous until it runs for 3+ hours