About 2 months ago the Walbro Fuel pump packed it in, in my eyes due to poor design. Car would stall randomly, and then wouldn't start, etc. Took me about a week to work out what was the problem, and much hair pulling. Thankfully I hadn't thrown out my old standard fuel pump, so that went back in its place, which at least was working properly and not failing randomly.
Didn't end up posting that up on here when it happened back then, but now that the new turbo was on - a higher fuel pump was needed before the major tune could happen.
Today I installed a GTR fuel pump.. The GTR pump is only a little bit less flow rate than the Walbro at 'real' fuel pressure, and equally easily to install. Took about an hour to install.
Next mod will be fuel pressure regulator, to help get a bit more power out of the standard RB20 injectors, which is sitting here, ready to go. The main issue is just getting enough fueling into the engine, to be able to push nearly double the power of the original engine - without risk of leaning out critically.
After that I can finally get the lot tuned.. Hoping for around 200-210rwkw to start (about 270rwhp) - and to try and get a good 1/4 mile time while the RB20 engine is still in there... just to see what it's capable of.
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