A close look at the LG Motorsports/Emco sequential gear box
02-05-2013, 06:52 PM
#1
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A close look at the LG Motorsports/Emco sequential gear box Hi guys,
I wanted to take some time for those looking at sequential transmissions and show you what goes inside of a purpose built unit, not just a conversion piece.
This is the same unit we have been running for seasons in GrandAm and very similar to the larger unit featured in our ALMS GT2 Corvette, and the very SAME unit you can buy for your own project.
With over 45 different gear ratios you can custom tailor this box to each track and your car for the ultimate in close ratio gear boxes
These are all built to order and come in almost 20 lbs lighter than the OEM gear box and feature pressurized, filtered oil to all bearings and gears. Straight cut gears with of course replaceable dog rings for engagement.
Assembled main case
Tail shaft removed showing reverse gear
Comparison of the reverse gear to the main gears
Notice how much wider the forward gears are
Shift forks, notice they are gun drilled and feature pressurized oiling passages
Look inside the main case. Notice the large roller bearings and also pressurized spray bar for oiling to the gears
Main gear cluster
Huge main roller bearings for main shaft and counter shaft
Main shafts and shift rail
Gun drilled main shafts, again with pressurized oiling passages
Main shaft support bearings in place
Built in oil pump
Fine micro filter assembly
Oil pick up tube
[yt]OC4mtuu9YiU[/yt]
[yt]jUSPwmN9MWE[/yt]
As you can see it is more than just a face plated, or dog ring gear box T56 that goes into each one of these gear boxes.
While they may not be for everyone, I hope this shows you a bit more info on what goes inside of one of these awesome units! Feel free to hit me with any questions you have!
I wanted to take some time for those looking at sequential transmissions and show you what goes inside of a purpose built unit, not just a conversion piece.
This is the same unit we have been running for seasons in GrandAm and very similar to the larger unit featured in our ALMS GT2 Corvette, and the very SAME unit you can buy for your own project.
With over 45 different gear ratios you can custom tailor this box to each track and your car for the ultimate in close ratio gear boxes
These are all built to order and come in almost 20 lbs lighter than the OEM gear box and feature pressurized, filtered oil to all bearings and gears. Straight cut gears with of course replaceable dog rings for engagement.
Assembled main case
Tail shaft removed showing reverse gear
Comparison of the reverse gear to the main gears
Notice how much wider the forward gears are
Shift forks, notice they are gun drilled and feature pressurized oiling passages
Look inside the main case. Notice the large roller bearings and also pressurized spray bar for oiling to the gears
Main gear cluster
Huge main roller bearings for main shaft and counter shaft
Main shafts and shift rail
Gun drilled main shafts, again with pressurized oiling passages
Main shaft support bearings in place
Built in oil pump
Fine micro filter assembly
Oil pick up tube
[yt]OC4mtuu9YiU[/yt]
[yt]jUSPwmN9MWE[/yt]
As you can see it is more than just a face plated, or dog ring gear box T56 that goes into each one of these gear boxes.
While they may not be for everyone, I hope this shows you a bit more info on what goes inside of one of these awesome units! Feel free to hit me with any questions you have!
02-05-2013, 07:40 PM
#4
It's a little more than 10k take a look here http://www.lgmotorsports.com/product...oducts_id=2179
Missed it by that much! Bet that would be a ball to drive though... 
02-06-2013, 08:14 AM
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I wish, when this unit came out it was one of the cheaper units for the cars and cut the price by almost 25k over the transaxle unit that was in our ALMS GT2 Corvette.
02-06-2013, 02:47 PM
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Yes, that is STILL a bargain compared to the; Quaife, X-Trac, FFD, and even some of the Hollinger units.
This is pretty much an unstreetable unit due to the straight cut gear scream, and how much you would kill said gears trying to drive it in stop and go traffic, correct??
This is pretty much an unstreetable unit due to the straight cut gear scream, and how much you would kill said gears trying to drive it in stop and go traffic, correct??
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02-06-2013, 08:26 PM
#9
Yes, that is STILL a bargain compared to the; Quaife, X-Trac, FFD, and even some of the Hollinger units.
This is pretty much an unstreetable unit due to the straight cut gear scream, and how much you would kill said gears trying to drive it in stop and go traffic, correct??
This is pretty much an unstreetable unit due to the straight cut gear scream, and how much you would kill said gears trying to drive it in stop and go traffic, correct??
02-07-2013, 08:39 AM
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Its not just the noise issue a straight or spur gear drive gears make with a box like this. The dog clutching teeth work great in a race situation but require finesse on the street. Also as a daily driver...these dog teeth will wear in relatively few miles...that is they will require "dressing" to keep / retain crisp shifts.
02-07-2013, 11:27 AM
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Yes, that is STILL a bargain compared to the; Quaife, X-Trac, FFD, and even some of the Hollinger units.
This is pretty much an unstreetable unit due to the straight cut gear scream, and how much you would kill said gears trying to drive it in stop and go traffic, correct??
This is pretty much an unstreetable unit due to the straight cut gear scream, and how much you would kill said gears trying to drive it in stop and go traffic, correct??
Stop and go your going to be on and off the clutch, most of the gear sets I have done have a 60-70 mph 1st gear in them.
02-07-2013, 11:27 AM
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Its not just the noise issue a straight or spur gear drive gears make with a box like this. The dog clutching teeth work great in a race situation but require finesse on the street. Also as a daily driver...these dog teeth will wear in relatively few miles...that is they will require "dressing" to keep / retain crisp shifts.
02-11-2013, 11:27 AM
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The Corvette box is one of the more expensive units due to the front and rear adapters and goofy input/output shaft assembly on those. The standard fitment boxes with a traditional bellhousing and tail shaft are a bit cheaper but still running in the high teens to low 20's depending on application and other parts you might need.
