[MrRocky]

I know its possible just wondering if anyone has any info on building a sierra/mseries box to use behind a m series motor in a sierra. Im led to believe you need to use parts from a vvt, non-vvt and sierra box ???

[alien]

I asked Brian about this a while back when i was looking at doing the head gasket on my g16. I was weighing up going m15 instead. Cost was my deciding factor in fixing the G motor... But Brian has done it with 2 or 3 other cars i believe??

[MrRocky]

Hes only done the one i know of, keeps the how to pretty closely guarded. I know nick who owns the m15 car they built quite well but big ask to pull his box apart to figure out whats going on

[MrRocky]

M18 is appealing

[alien]

M18 is VERY appealing, but M15 are way more prevalent (cheaper) and still more power than g16.

[MrRocky]

M15 might have more power on paper but the torque dilivery makes them drive slower. Side by side g16 wins easy

[atari4x4]

Darren has some tech on the Sierra M series GBox here: viewtopic.php?f=5&t=13515

[MrRocky]

Perfect cheers