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Hi there,
Assume that the T38 has the same M76 gearbox as my T37 engine? I've been unable to find the gearbox or clutch ratings so not sure of its design limits. Will keep the forum posted if I get any issues as pushing 420nm with my map. Note that the T2 engine is mechanically the same as the T3 so experiences with this engine also apply. The only high torque V40 VEA with a manual box is the D4 and this uses the M66 box - probably for its torque specs!
 

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More digging and the D4's use the M66 and others the M76. However both boxes use the same clutch. From what I can see the D4, T2 and T3 use the same clutch so that must be ok for 400nm. So the most likely items in question are the DMF and M76 gearbox. However looks like the B4304T19 engine which as a T4 can also use the M76 box and DMF as per T2/T3 so should be good for at least 320nm and 290hp. That's the technical info only time will tell the reality!
 
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