Get a scale and weight the pistons and compare it to cologne, you get the idea why all rotating mass is is so slow and heavy.Mr B wrote: ↑Tue Mar 09, 2021 11:03 amI agree with the timing gear being weak but the same design is used on the Cologne V6 as well so that makes it a weak point on both engines.Vermilion wrote: ↑Tue Mar 09, 2021 10:45 amCrank broke, camgear failed, lost pushrods, heads flooded with oil with high pressure oil pump.
With tuning camshaft + bettter exhaust gave +15bhb (to 150bhb same as stock 2.8...) and fuel consumption rise to horrible 20l+/100km
I have had Essex engined Capris for nearly 30 years and I have not had the issues that you describe, any modification made to an engine has the potential to go wrong if not thought out properly, saying that I have used a high pressure oil pump a few times on a Essex and not had a problem but as the engine was not designed for the HP pump i think its reasonable to expect some issues from time to time.
I have had four 2.8 injections over the years and to be honest I find the engine to be gutless and it definitely has no where near as much torque as the Essex, I found the injection system to be very temperamental as well, which is why I suggested the OP gets an Essex engined Capri instead - granted not as much HP as the Cologne but a lot less hassle and much easier to work on.
Just my opinion.
Can't say that cologne desing is best either hotspot in heads and siamese heads won't make it awesome, but still its better.
I runned Kjet like 20 years with turbo maybe 350bhb and 450nm, broke a couple of pistons because lean mixture and wrong ignition advance.
When I got all right worked like a clock. But I got more power hungry and went for EFI and E85 and running 500+/650nm, want to see essex to go like that still street drivable with 3.09 rear axle ratio and can cruise in highway with 5th gear at 2000 rpm at 55mph.
And if you bring GAA to table I will bring westlake and we go to nowhere.... but those engines are pretty much unavaileble everywhere.
Not sure what block is better, atleast essex is heavier, might be more durable if the casting isn't worse?
Atleast I know that OHC/Pinto/cosworth block manage won't much more power for block. Blocks will crack at 750whp, even the burton alloy block.
Coswrth 24v block is better than those but the inlet manifold isn't great... I have seen 24V cosworth 2.9 run with 900whp and dynoed 1124bhb, and then broke a crank at 7600rpm.