The V8 Owners Forum -

That's what I would have expected. Theoretically, a larger valve overlap should only make sense on a turbocharged direct-injection engine. It would improve scavenging without heating the exhaust. Interesting! I'd never thought about that before (due to my problem). :lol: Cheers No. Overlap can only...

Obviously theory and reality....can be blurred. It would take special equipment to measure valve lift in real time to see what the Rhoads lifters actually do, and when they do it, as I'm sure even oil types and temperature will playa big role in that too. As for turbo requirements, depends on the ov...

Well I wouldn't say the behaviour is crap, probably more like sub-optimal. Anything less than about 1200RPM does not pull smoothly, I know that sounds like very low RPM but it would work very well in my car when at slower speeds which are a fact of life. I also think this is possibly why (or at lea...

As is often the case, more isn't always better. Sacrificing a few horsepower for better drivability is often a wise decision. Regards A great quote in DV's A-series book I think it was, and perhaps others regarding camshafts. Pick the camshaft you want, then buy the next stage/level down from it.

One other thing I did wonder about is whether there is any lost motion with a hydraulic lifter. I've never had one of these apart but I'm guessing they have some sort of port in them to let oil in which will close off as the lifter rises (similar to a brake/clutch master cylinder) this could result...

A quick google for some cams, Given some numbers here are quite high, I would think they are trying to quote seat to seat. http://www.wolfitt.com/kentcamdata.htm A chart of different cams, again it doesn't specify https://sideways-technologies.co.uk/forums/index.php?/topic/7653-cam-comparison-chart/...

It is common for durations etc to be quoted on a 50 thou basis, or 1mm ( not the same oddly ), so that can vary by cam manufacturer. Generally they don't go by from actual lift from zero to actual close....but sometimes that can be given too. I presume some of that is because all cams will have a so...

They are definitely a fantastic gearbox, and going into everything these days. Plenty of control options from simple to elaborate. I would do a swap myself, other than the fact I'd be concerned about breakage without moving to a properly "built" version. And I just simply don't drive the c...

Given the wiring diagram you post appears very simple, one wire in, one wire out. Just measure the resistance of the in/out when in park, and in neutral, and see what they are. Although if that wiring diagram is only for starting, I doubt there are any resistors, just simple continuity when in eithe...

There are so many these days, a few cheap examples https://diy-efi.co.uk/product-category/accessories-2/wideband-lambda-kits https://ldperformance.co.uk/product/wideband-controller/?srsltid=AfmBOopPpz7BKZON1lICgkl3q9MoR6HNbeCiT7tHyI_XCptJOOqwA8_w https://www.tegiwa.com/search?type=product&q=AEM%...

get a wideband on it to see what actual mixtures are doing ( assuming you've already checked fuel pressure too )

Is there any adjustment screws on the MAF, what design is the MAF on those ? Is it an old flapper or something more modern ?

That's very expensive, have a look at OBP https://www.obpltd.com/product-category/fuel-water-swirl-pots/bulkhead-mount-swirl-pots/ I would not bother with any that then rely on an external pump. Just gets messy with lots of hoses and fittings, and takes up more room anyway Whilst Nuke or Radium, we...

I have 3.9 V8 EFi which has a couple of solid lines with braided 6" connectors to allow some flex I guess? One supplies fuel from the std pump in the tank, with the other returning it back to the tank. I have had problems with fuel starvation when the vehicle is tilted to around 45 degrees. It...

What do you mean it isn't engaging ? The splines don't engage ? you've no drive ? you can't select gears ? etc etc

Stick a small borescope camera in there to get a look.

The injectors have clips that secure into the rail, you can lift the entire rail out and crank with injectors all pointing into jars.

Although whether that's easier than just swapping to different cylinders and re-trying...debatable. But sometimes a visual can help.