The 75 and ZT Owners Club Forums - View Single Post - Power issue after swapping to alloy inlet manifold 1.8t

Mikejaytee · 21st September 2018, 07:42

So are you saying that you are getting (much) more power over 4000 revs? If so this probably indicates a more efficient induction, and more efficient combustion in general; which is the aim of fitting the alloy manifold. ( Is it not?) Just because you have the extra power, though, doesn't mean you have to use it every time you hit the throttle...so a lighter foot may help as you'll stress many additional components otherwise.

I would think that the engine and injection is closely mapped to the original manifold, so possibly a remap to more suit the new one with its different airflow characteristics may be possible.... Others may be able to advise more comprehensively here...based on their own experience and knowledge.

21st September 2018, 07:42	#2
Mikejaytee Regular poster Rover 75 Tourers x 2. Join Date: Jul 2016 Location: Galloway. Posts: 51 Thanks: 10 Thanked 14 Times in 10 Posts	So are you saying that you are getting (much) more power over 4000 revs? If so this probably indicates a more efficient induction, and more efficient combustion in general; which is the aim of fitting the alloy manifold. ( Is it not?) Just because you have the extra power, though, doesn't mean you have to use it every time you hit the throttle...so a lighter foot may help as you'll stress many additional components otherwise. I would think that the engine and injection is closely mapped to the original manifold, so possibly a remap to more suit the new one with its different airflow characteristics may be possible.... Others may be able to advise more comprehensively here...based on their own experience and knowledge. __________________ [SIGPIC][/SIGPIC] Best regards, Mike.