The V8 Owners Forum -

Twin throttle bodes are for clearance reasons. The single large body and its mounting are far too bulky. The smaller bores may give better throttle response...

The throttle sizes were recommended by Jenvey. I'll be using 2 x 48mm.

Thanks for the feedback Eliot. Yes I was aware of the less than optimum power characteristics of this manifold. However for many other reasons this engine suits my needs for now. Also, I didn't see any comments on the power delivery with two throttle bodies... From a practical point-of-view, the Luc...

Hello all, I'm fitting a Thor 4.6 V8 from a Range Rover into a Marcos Mantula. As far as I know this hasn't been done before so I will have to make a few changes to get everything to fit. To save time and potential rework I'm going to design the installation in 3D CAD. So what I'm looking for are so...

Thanks for the encouraging words! The Mantula now has a nice, low mileage, 4.6 litre Thor V8 from a 2001 Range Rover. I may need to change the inlet manifold a little but it should be a worthwhile upgrade. I'm not after the most powerful V8 but I do like the idea of having plenty of torque. I'm thin...

Thanks for the advice Mike. Yes the roads here are rather slow, but we can legally get up to 60, or 70 on our half mile of dual carriageway! But I'll be taking the Marcos over to the mainland whenever I get the chance. then a few track days too. I think I'll be staying with the Rover, so let's see w...

Hello, I'm about to resume the long delayed build of my Marcos Mantula. When I say delayed, the car has been unfinished in storage for the last 14 years! It's even longer since I did any work on it. There's a lot of work ahead including the dreaded IVA test. The engine was rebuilt but is a slightly ...