“Merlin F85” heads for the Rover V8 from Real Steel
Discussion
Hi Timo, nothing much since the rolling toad session at Joolz place.
I've been tinkering with the cruising and part throttle mapping and have improved the economy and helped the low rpm smoothness. It will pull cleanly from 1000 rpm in 5th gear which is nice when pootling around.
Oil has been leaking from the head gasket on both banks of cylinders which I have put up with until recently. I changed to a higher viscosity oil, went to 20w60 from 10w40 which has reduced the drips on my garage floor considerably. My guess is that the oil is "wicking" through the gasket from the crankcase to the outside where it then runs down the block. I think it is worse on my engine because there is a "pool" of oil sitting at the point where the head meets the block caused because the heads are moved roughly 10mm away from the centre leaving a step. I'm not sure what the best solution will be but I'm sure Rob will sort it out.
Cheers Andy
I've been tinkering with the cruising and part throttle mapping and have improved the economy and helped the low rpm smoothness. It will pull cleanly from 1000 rpm in 5th gear which is nice when pootling around.
Oil has been leaking from the head gasket on both banks of cylinders which I have put up with until recently. I changed to a higher viscosity oil, went to 20w60 from 10w40 which has reduced the drips on my garage floor considerably. My guess is that the oil is "wicking" through the gasket from the crankcase to the outside where it then runs down the block. I think it is worse on my engine because there is a "pool" of oil sitting at the point where the head meets the block caused because the heads are moved roughly 10mm away from the centre leaving a step. I'm not sure what the best solution will be but I'm sure Rob will sort it out.
Cheers Andy
These heads are now available from RPI Engineering, who now hold all production rights and production machinery. Whilst I've never tested them back-to-back with Rover heads, I have dyno tested quite a few engines equipped with these heads and always had good results with them. These have all been in Land Rover vehicles, usually Range Rovers or Discoveries.
There is a video on our Facebook page http://www.facebook.com/tornadosystems of a particularly nice Discovery II with these heads and an ACT triple-throttle Carbon Fibre Plenum on the rolling road if you wan to see them in action.
There is a video on our Facebook page http://www.facebook.com/tornadosystems of a particularly nice Discovery II with these heads and an ACT triple-throttle Carbon Fibre Plenum on the rolling road if you wan to see them in action.
A friend of mine tried a set of Merlin heads on his Griff last year & he had major problems, in essence, without major modifications to bodywork, manifolds & ancillaries the heads will not fit properly - in the end he gave up and went back to the original Rover heads. The same problems would be incurred trying to fit these heads to a Chimaera.
Hello all.
Happy new year.
Thought I’d resurrect this old thread and update it.
I’ve had an Emerald K6 on the shelf for years and finally dcided to fit it over the Christmas holidays to replace the ancient Motec M8.
Its early days yet but just got it running this evening and learning how to map it.
Happy new year.
Thought I’d resurrect this old thread and update it.
I’ve had an Emerald K6 on the shelf for years and finally dcided to fit it over the Christmas holidays to replace the ancient Motec M8.
Its early days yet but just got it running this evening and learning how to map it.
rev-erend said:
dbv8 said:
or just add gas. Its a bit cheaper.
My engine.... 4.6 with 4.0 pistons, real steel typhoon cam, 500 heads, decat, blended trumpet base, 72mm plenum and megasquirt. Gave 275 @ wheels on 95 ron petrol (V-power sold out due to panic buying).
Add some nitrous.... 418bhp and 440lb/ft for 0-100 in 7.5.
Love the use of past tense.. 'gave'My engine.... 4.6 with 4.0 pistons, real steel typhoon cam, 500 heads, decat, blended trumpet base, 72mm plenum and megasquirt. Gave 275 @ wheels on 95 ron petrol (V-power sold out due to panic buying).
Add some nitrous.... 418bhp and 440lb/ft for 0-100 in 7.5.
How is the rebuild going ?
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