Just been reading Andy's build. Looks really impressive. On the thread, someone made reference to me have issues with fuel pump so thought I'd share where I'm up to.....
I'm no expert and certainly cant throw a spanner around but I've spoken with people who have similar issues and resolved them, and equally read a lot....we all have to start I guess somewhere and its more enjoyable than just booking it into a tuner and getting the CC out. The best part of the project to date, is the sourcing the parts and the knowledge I've gained along the way. Made some mistakes but general its been a brilliant project. Importantly we've experimented with ideas, tried and occasionally failed with some issues so I'm not talking hypothetically. I've tried the patience of SteC and courted others for their views and opinions as no single person has the monopoly on knowledge.
.....so the cars now close to be complete st2 which is good given its hopefully being sold in the Easter (as it seems I still have a keen buyer) and I want it dyno'd to its full potential. To command a good price, its important that things are complete....
I've certainly got wider issues around fuel system than just fitting a bigger pump would have resolved alone. Big problem is the Meg 225 and Clio's run a non-return system. Our setup has the fuel pressure regulator attached to the pump sender unit, and all it does is bleed excess pressure off straight back into the tank rather than pumping it all the way to the fuel rail, then all the way back to the tank. Big power (not many modded cars out there that don't) ideally need a return system. Standard fuel system is only good for stage 1 (280 bhp). I believe injectors start to max out and standard fuel pump only good for regulated 3 bar fuel pressure anyway.
Currently for me, remap and bigger injectors are the order of the day.
However, if it doesn't sell, then def something I'll consider. I've seen the fuel set-up on a RST tuned car, and I know it works cause it was dyno'd at 400bhp. Interestingly, standard internals on 250 are good for 370 bhp so it would be future proof as not unrealistic that the new owner might want to continue to 'push the envelope' so to speak.
In addition, as most of us know with FI, getting the power down is ridiculous on anything other than dry days. So ideally anything over 330bhp needs a boost controller. Thats another £400+
More power = More money.