Looking at getting a converter
05-29-2013, 04:02 PM
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Looking at getting a converter So I'm either going to buy some headers or get a converter for my auto. Question is, since I need a tune for the stall, do I need gears as well? I currently have the stock gears. If its almost necessary, I would buy 3.73s. Thanks
05-29-2013, 07:20 PM
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If you have 3.23s I wouldn't change them; if you have
2.73s then maybe. But be aware that once you get a
high STR, you will be traction limited and maybe going
up in ratio helps none - if you can't hook in 1st, what
good is a 4-speed trans really?
Playing with ratios for a 1/4 mile track is another matter.
There you'd try to trap at the top of 3rd, and at low
power levels higher gears help the numbers; as trap
speed (power) goes up, though, the ratio will come
back down.
I'll leave it to 2.73 + high stall speed converter guys
to say whether they can blow through 1st gear; my
3.42 setup smokes well into second and that helps
nothing at the track.
You want to match converter to motor powerband
and match gears to your use - DD, 1/4 mile, top
speed, whatever. Doing them together might save
you money if you hire your tuning done, but gear
swap stuff ought to be a pretty small fee later.
Getting the shiftpoints just-so for the converter,
to your preferences, you could spend a lot of
time at that if you're real particular.
2.73s then maybe. But be aware that once you get a
high STR, you will be traction limited and maybe going
up in ratio helps none - if you can't hook in 1st, what
good is a 4-speed trans really?
Playing with ratios for a 1/4 mile track is another matter.
There you'd try to trap at the top of 3rd, and at low
power levels higher gears help the numbers; as trap
speed (power) goes up, though, the ratio will come
back down.
I'll leave it to 2.73 + high stall speed converter guys
to say whether they can blow through 1st gear; my
3.42 setup smokes well into second and that helps
nothing at the track.
You want to match converter to motor powerband
and match gears to your use - DD, 1/4 mile, top
speed, whatever. Doing them together might save
you money if you hire your tuning done, but gear
swap stuff ought to be a pretty small fee later.
Getting the shiftpoints just-so for the converter,
to your preferences, you could spend a lot of
time at that if you're real particular.
05-29-2013, 10:01 PM
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I've been thinking about buying all the parts I need and having them all installed and tuned. I definitely don't want to spend needlessly, and I'm not trying to cut corners either. My plans aren't firm yet on the direction I want to go, so maybe I should get that part down first.