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Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Aug 2013
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Formerly known as Aldermog Member of the Inner Circle
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Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 15 |
Jay,
exactly!
Also no blue silicone pipes in a mog, grey, black or possiblt Silver!!
Peter
Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...
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Joined: Jul 2011
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Jul 2011
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I think the answer is a mechanical supercharger: this would up both power and torque without requiring the massive inter-cooler a turbo needs
Peter, I'm a big fan of supercharged cars (have owned three...) But :- - increasingly challenging on emissions regs for production cars (compared to turbochargers) are there any out there now bar the dual-charger VW 1.2 & 1.4 units? - irrespective of whether you are using a turbocharger or supercharger, it is far more efficient to use an intercooler to reduce the inlet charge temp (you cant buck PV = nRT so whatever means you use to squeeze a gas and it will get hot!) and a high inlet air temperature will not support the charge density/fuel dispersion that modern cylinder head designs require. This is why non-intercooled boosted engines died out as engine design advanced, though Lotus held out against the trend longer than most. As an aftermarket addition of course you can do what you want.
Stuart
"There's no skill substitute like cubic inches."
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Joined: Apr 2014
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Talk Morgan Addict
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Talk Morgan Addict
Joined: Apr 2014
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A charge cooler is more effective than intercooler
Mark - No Longer driving Archie the Old English Sheep Mog........... 2010 Roadster 3.0 V6 (S3) 
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Talk Morgan Regular
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Talk Morgan Regular
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[quote=gatewright]Thanks for your reply. I am seriously considering changing my roadster to a new + 4 GDI for similar reasons to Heinz, my only niggling doubt is the reduction in HP, all other aspects of the car are fine,.
Alan. I think the answer is a mechanical supercharger: this would up both power and torque without requiring the massive inter-cooler a turbo needs. As the 2.0L GDI is really the Ford Ecoboost without the boost it is perfectly capable of being pushed towards 200bhp and 200 ft lbs, which is more than enough. Well.......yes and no. Air/water intercoolers are more compact and as efficient as air/air. Requirement for an intercooler is a function, mainly, of air compression and subsequent thermal rise regardless of whether the air is compressed by a super or turbo charger. So both benefit from the density increasing effect of an intercooler, though a turbo slightly more so because of exhaust gas heat transfer. However, most modern turbos are water-cooled by being plumbed into the engine cooling system anyway. The US-derived GDI crate engine used in the Plus 4 is not just an Ecoboost without the turbo. It runs different pistons with a higher compression ratio and different cam profiles. The c/r ratio would have to be reduced for turbo or supercharger use.
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