Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) Monty Takes A Deep Breath

Monty is back and pulling hard

Now the real work begins



I'm currently targeting a 1,070 rpm idle speed, this at 18° BTDC which works well and brought Monty's manifold absolute presure (MAP) down to a reasonable 56 KpA.



I've since got this down to 54 KpA but thats the current limit at 18°, so today let's see if he likes to idle at 21.5°?



The ultimate goal is to create the smoothest idle at the previous target of 970 rpm, and at the lowest possible MAP signal, to help achieve this I'm currently idling Monty at 13.6:1 AFR. Once/if we get to my ultimate 970 rpm target I'll gradually lean him out untill I find his lead idle limit, for the record I'm not expecting to achieve a smooth idle at stoich (14.7:1) as achieved on the Phase 2 cams.



Just by the sound of the exhaust note you can definitely tell Monty has had cams, the Phase 3s clearly have a lot more overlap at idle than the Phase 2's. TBH if I can achieve an AFR of 14.0:1 at a 1,000 rpm idle, I'll be more than happy with that

It's early days, but Monty has already seen one brief pull where we we're knocking on the door of 7,000 rpm and it's quite clear he has a lot more to come, previously Monty fell over at 6,500 rpm making 180hp. James at M2R says the engine is now safe to 9,000 rpm, but I'll be keeping it well below that, the current AI generated dyno graph estimates Monty's new engine recipe will make peak horsepower at 8,200 rpm.



All these AI predictions are just that 'PREDICTIONS', we will only know what Monty really makes when he returns to Surrey Rolling Road in mid June!

In the mean time, I've already used the log I recorded on the way home from M2R to apply the first EMU Black Auto Tune suggestions to the VR table, so Monty's fueling is already coming good



Stay tuned folks for more incurable geekery