Peugeotech's 505 V8 build (Rover 4.6L)

3 minute(s) of a 64 minute read

Yeah. I just sort looked around and hey, there's a 505 axle, it's spring loaded so if we fit between and close the gap so the spring is compressed a little, it's got to be good. The idea is to set an engine on it to get the starting, cold start hot start cruise tuning done and also test run the engine for 2nd head tension, bedding in rings and cams. It will give me a torque reading too, while the brakes load the engine which will help me get mixtures and the ignition timing safe. I believe the term is Least Timing for Best Torque? I do a lot of odd ball things over here, one is the V8, another is a full rebuild on a Toyota S800 engine. 2 cylinder , 2 carbs and 800 cc of air cooled awesomeness.

All this old stuff is worn out so we usually have to remake/reface a cam , get new pistons made and, the fuel is different today.So tuning a rebuild is an integral part of the process. In the course of all this we've found a great new ignition idea which is tuneable via laptop. Set your own ignition curve without springs , weights or contact breakers. We are going to try one on the S800. Very compact stuff and the spark becomes a big fat blue crack about 1/2" long during cranking. 

http://www.accuspark.co.uk/Blackbox.htm

3-4-2016

Some new yesterday. I am using Ford spec 3.68" pistons in the RV8. Cutting a long story short, the wrist pin diameters are 24mm Rover to 23mm Ford. A nice fully floating option for this project. It turns out Peugeot XN1 wrist bushes will press into the Rover rods and will be honed out to 23mm nicely. Once done I can now proceed with setting squish and building up the engine. Like Wade I am leaning toward a MS2 kit as I have sold on the ecu I had built. It is now going to run the XN2 engine.

11-19-2016

Hi again. Since my last post I have sold my business. Very busy and difficult time. However the 505 V8 project is reignited . I have almost completed the engine testbed to tune the engine. I had a slant 6 rebuild and had to hot run it before it went out so a Chrysler was the first engine on the semi completed bed. Im having to remake and invent some tools as I go partly for cost saving and partly for fun but the project is still rolling. Fully floating piston pins with bushes from an XN 1/2 Peugeot engine fitted into trhe stock Rover rods. Nice.

No offence taken Goce, I'm a big boy! Selling my shop was selling the last 20 years of my life. It had to happen though, I couldn't cope with the stress and it certainly had a terrible effect on my health it seems.

All I have to do now is find enough time to do the Peugeot stuff I want to do! I'll find some images to share today.