Fuel the fire.
So next thing i looked at was the fuel system. Steve had previously mounted the fuel reg on the end of the cam cover, but had decided to move it to another location next to the top engine mount.
Rail with gauge and bosch sensor fitted for fuel pressure.
Reg next to top engine mount.
I mocked up the fuel lines in ptfe and was not keen on the route, as the pipe returning off the fuel rail to the regulator was straight across the front of the plenum, and as the ptfe is basically a solid hose you cant add length in this situation so the hose was tight. I was concerned that any movement on the engine would possibly flex the hose at the an fittings causing a leak over time.
With that idea shelved i looked at other options, which all seemed to go with best location being regulator mounted on the end of the cam cover.
Fuel lines made up to suit. Not 100% keen on the fuel rail inlet fittings so might change that for a better fitting soon.
Reg and home made bracket. Fuel pressure sensor is fitted straight into the fuel pressure reg spare port.
Fuel pressure gauge has gone the journey as not keen on running them permanently, as ive had one leak in the past. They are supposed to be fitted for initial setup and removed anyway.
Note new k&n airfilter to get rid of the knackered old one, black mtc silicone water hoses and dipstick fitted. Finding a dipstick tube and modifying to fit was a ballache on its own. The block previously ran a short dipstick like 172, which was a nightmare to check oil level with the nortech inlet. I eventually settled on a modified meg 250 dipstick after buying 5 different dipsticks and tubes which are a pain to find 2nd hand.
Next job was injector fitting. The engine was previously running pico style short injectors as the inlet was designed for them. Iirc the injectors that were supplied were 780cc injector dynamics, modified bosch ev14 short, supposidly flow matched.
Pic of Injector Dynamics injector.
I sent them off to Chris @ EfiParts for a clean and check over. The news was not good, all 4 injectors were stuck after storage, which is fairly common. Main issue was once coaxed back to life was flow rates not matched and 4% out iirc. This is almost acceptable but not the best and Chris advised me not to run them just incase, as closer flow matching is preferred, especially if running the fuelling close to the edge.
I also had power goals in mind so sitting down and doing the maths it looked like they would be 90%+ injector duty as tested around 720cc so started looking at alternative injectors. There is not a lot available between 600cc to 1000cc that are decent in the short ev14 size. Options are limited to similar modified ev14 that i already have, siemens deka 630 or 875cc options. I did not want to use siemens deka, fakes are rife, and the spray pattern is like a hosepipe, they work but again i want the best drivability for a street car.
Discussed options with Chris and he suggested Bosch Motorsport 980cc injectors. They are short ev14 style so drop in with no mods, with long pintle like megane 250 injectors. The spray pattern is nice, long pintle would in theory fire the fuel closer to the valve stem and Chris advised they are great to map as work like a good oem injector at low pulsewidths, which gives good drivability and economy and can supply all the fuel i would need on high boost with a bit of headroom.
Picked up a set of flowmatched 980cc from Speeding performance parts. Price was reasonable then got stiffed with import tax thanks to brexit !
Fitted.
Took a few weeks of searching on and off to find that solution. Nothing seemed to be moving fast at that point and progress was slow.
Completed another small job at that time to chip away. Aux belt fitted, this runs from memory a renault traffic alternator mount which utilises the oem megane auxillary tensioner. Shorter 6pk 1060mm long belt and idler pulley off a toyota avensis from memory as no hpas or a/c as both gone so axuillary only runs the alternator.
Would like to change the idler for an alloy pulley at some point so if anybody can suggest a 65mm 6pk pulley to suit let me know.
More to come soon!!