03 MarBosch PWM Idle Valve

The car has been off the road since 2014, and one of the last things I needed to refine was the operation of the PWM Idle valve (I used a Bosch 0 280 140 516 from a Volvo). I’d managed to get it to work somewhat okay, helped by adding a restrictor in on the […]

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11 May1500 Block Walkthrough

1500 Block Walkthrough

MG Midgets used the same engine as the Triumph Spitfire by the late 1970s, when BL decided to install the Triumph 1500 unit in both cars. Here’s a very informative video of what a 1500 looks like after it’s imploded, and some discussion of useful modifications such as expanding the oil gallery to the centre […]

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01 MayUprated Brakes – long pedal travel mystery solved

I recently refurbished my brakes as the fronts were starting to get in a bad way. Despite being equipped with new dilled/grooved discs, EBC pads, Big Red refurb calipers and silicone brake fluid when new, the pistons were sticking with rust, stopping the pads retracting and thus glazing the discs and pads. The pads were […]

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25 MayMegasquirt Two Months Later…

Lots to report since the last post – the car has been in use as a daily driver once again, and there have been quite a few things I needed to iron out. Firstly, I had trouble with the fuelling percentages – they weren’t repeatable. I maintain that the SD card logging feature of the […]

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21 AprSwitched to Direct Coil Control over from EDIS

Amazingly, it turns out that the EDIS system has been running with the VR sensor wired with the wrong polarity, ever since I installed Megajolt thousands of miles ago! It explains why I haven’t been able to run over 4000rpm with my EFI, why my tach never worked past that RPM on Megajolt, and why […]

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17 AprAddressing Issues

Ended up having some fuel leakage problems this week. I realised that the injectors were able to slide up and down a bit because the body of the EV6’s allows them to sit deeper into the manifold than the EV1 style injectors we made the manifold/rail assembly for. After installing them all again fully home […]

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01 AprDriving Impressions

Had the car out again yesterday, have pretty much perfected the VE table (in the sense that it perfectly matches the target AFR for each part of the map). Only changes it will need now is any leaning off I decide to do to help fuel economy, though it’s amazing how much is already being […]

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20 MarWarmup Enrichment (wue) Self Tune

Very pleased to see that Phil Tobin has just posted in a thread I started asking about the possibility of a warmup enrichment analyser; he’s released a prototype version to test so will be trying that out tomorrow to self-tune my warmup enrichment. Which is basically your automatic choke control to those unfamiliar with EFI. […]

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19 MarFull Sequential Injection – now working!

Set up the cam sensor last night. Following the documentation, ie having the crank missing tooth pass the VR sensor then moving it back about 3 or 4 teeth, I end up with the sensor positioned here: Too close to the plug lead for my liking, and not neat enough. I just ended up moving […]

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15 MarWorking on Sequential Injection / First Drive

I’ve blocked off the idle valve as I can’t seem to figure out how to work it yet, but that can wait until an evening as it doesn’t cause a large amount of noise. Going to take the car out for a drive in a bit, just waiting on a mate to bring a fuel […]

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