Roy Hodges
Member
has anyone done 5 speed conversion using kit from either quicksilver or american power train
5 speed trans conversion
- Thread starter Roy Hodges
- Start date
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Steve welder
Well-Known Member
If I sink any more money into my car, it will be a 5 speed conversion.....I need OD
I did, However Those guys do not have a "kit" for my application... So I decided to roll my own and get it done.
1964 Dart Grüne Hölle Road Course/Track Day/AutoX Project
Read through the posts and in a page or 2 you will get to the 5 speed content
Good Luck!
Greg
1964 Dart Grüne Hölle Road Course/Track Day/AutoX Project
Read through the posts and in a page or 2 you will get to the 5 speed content
Good Luck!
Greg
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Thanks for the kind words.
The 5 speed continues to be one of the best things I did to make this car more fun to drive.
The 5 speed continues to be one of the best things I did to make this car more fun to drive.
AJ/FormS
68 Formua-S fastback clone 367/A833/GVod/3.55s
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If you have a stock-type 318, yes, a five speed can really pep her up.
but IMO, it is not that great a benefit, for a 360.
Have you considered the Commando 4 speed with 3.23s rear gears?
Commando gearset is; 3.09-1.92-1.40-1.00
The Commando low gear is plus 16% over the regular 2.66 low; allowing you to run 16% less rear gear for the same starter-ratio. So then;
3.23 x 3.09=9.98 is 6% better than the standard gears of
3.55 x 2.66=9.44, which is the go-to street gear. and
those 3.23s with 27" tires will cruise at 65=2600, which is nearly as slow as you want to cruise at, for fuel economy, on anything but a stock-cammed engine. The reason being any slower and the Mopar ignition system cannot generate enough ignition timing to satisfy the engine, when it comes to fuel economy. (2400 is about the lower limit).
Second gear is the gear that, as a streeter, you will be spending most of your time in. Second gear is 3.23 x 1.92=6.24 and this gear goes from 2500=32mph, to 5000=64 mph, leaving you a lil room for passing gear, lol; which being 5600=72mph..
So now, all you have to do is build an engine with a stout bottom end; which usually means plenty of cylinder pressure. and/or cubes.
I have run this combo with a 360, and with 245/60-14s, she was a terror. At 65=2600, you can just get ~50* cruise timing, which is usually not quite enough, but will make pretty good fuel economy with a 224* or less cam, and especially with cylinder pressure up around 185 or more (alloy heads).
A 5 speed will give you about a half a gear more at either end. The bottom half will go up in tiresmoke, and the top half will reduce your rpm to the very minimum, and economy will not get any better due to insufficient ignition timing.
6.24 is a solid overall second gear, because it gets to 60/65 without a shift, and it comes in nicely at 32mph just as tirespin is ending. If you had a 5-speed, with an appropriate rear gear for cruising, you would probably need to shift into third early
but IMO, it is not that great a benefit, for a 360.
Have you considered the Commando 4 speed with 3.23s rear gears?
Commando gearset is; 3.09-1.92-1.40-1.00
The Commando low gear is plus 16% over the regular 2.66 low; allowing you to run 16% less rear gear for the same starter-ratio. So then;
3.23 x 3.09=9.98 is 6% better than the standard gears of
3.55 x 2.66=9.44, which is the go-to street gear. and
those 3.23s with 27" tires will cruise at 65=2600, which is nearly as slow as you want to cruise at, for fuel economy, on anything but a stock-cammed engine. The reason being any slower and the Mopar ignition system cannot generate enough ignition timing to satisfy the engine, when it comes to fuel economy. (2400 is about the lower limit).
Second gear is the gear that, as a streeter, you will be spending most of your time in. Second gear is 3.23 x 1.92=6.24 and this gear goes from 2500=32mph, to 5000=64 mph, leaving you a lil room for passing gear, lol; which being 5600=72mph..
So now, all you have to do is build an engine with a stout bottom end; which usually means plenty of cylinder pressure. and/or cubes.
I have run this combo with a 360, and with 245/60-14s, she was a terror. At 65=2600, you can just get ~50* cruise timing, which is usually not quite enough, but will make pretty good fuel economy with a 224* or less cam, and especially with cylinder pressure up around 185 or more (alloy heads).
A 5 speed will give you about a half a gear more at either end. The bottom half will go up in tiresmoke, and the top half will reduce your rpm to the very minimum, and economy will not get any better due to insufficient ignition timing.
6.24 is a solid overall second gear, because it gets to 60/65 without a shift, and it comes in nicely at 32mph just as tirespin is ending. If you had a 5-speed, with an appropriate rear gear for cruising, you would probably need to shift into third early
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