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'85 XR4TI
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89 Posts
Discussion Starter · #1 ·
Hello,
I currently have a T5 in the XR4TI, and would like a dog box eventually. G-force made a T5 straight cut dog engagement set for a while but they are out of production now and around 1500 to 2000 used. I'm worried that durability and servicing will be a problem. If I find a good deal I still might go this way because it's bolt in.

So I started looking around and the muncie based 4 speed "101" gearboxes by a variety of manufacturers seem like a good option for rwd. They are plenty strong, serviceable, available used, etc.. They appear popular with the drift guys. Anyone using one in rally or road racing? Like this or similar from other brands: G Force 101A

Part two of my question, does anyone with a dog engagement box in a rally car know if the clutch is setup to slip a bit on shifts? the drag guys use adjustable clutches to prevent breakage from shock loading but they also have more traction/power.

Perry
 

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Registered
'85 XR4TI
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89 Posts
Discussion Starter · #3 ·
Thanks for the response. I agree drag is another world. Some of them are using adjustable clutch slip to limit transmission breakage during hard shifts. in Rally that's probably harder on parts than running an igniton interrupt. I have the ignition/fuel cut capability built in already for flat shift functions and a beam load cell to add to the shift lever.

These transmissions are just a basic dog box design, pretty much the same as the sequential boxes but without the fancy shift drum unless you add it on. I think the ability to downshift without the clutch is a big advantage in Rally. The big difference with this over a much more expensive setup is the lack of overdrive.
 
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