re[2]: BRC: 14.8 @ 160K

Archives of Posts to the NZ MX5 List back in 2003
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Mathew

re[2]: BRC: 14.8 @ 160K

Post by Mathew » Thu Jan 09, 2003 8:49 am

I must admit that in the end I decided against putting it on the dynojet again and forked out around $100 for a run on a Dynopack (supposedly more accurate and comes with piles of pretty ;) colour graphs). An air-fuel gauge would be a nice addition (what are they worth?) but with my current post-xmas, pre-wedding financial situation I can barely afford petrol.
My standard fuel pump was fine until I removed the 230cc(1800) injectors (major overfueling off boost) and refitted the 205cc ones. The pressure required to squeeze the same amount of fuel through the smaller injectors all got a bit much for it. I never did find out which brand of pump they used. After I realised that I could have gotten a Jackson Racing pump via the net for half the price I decided that for the sake of my mental health I would just try to forget all about it (thanks for reminding me, now I've got to go see my therapist again).

M@

lou Girardin

re[2]: BRC: 14.8 @ 160K

Post by lou Girardin » Thu Jan 09, 2003 10:18 am

The smaller injectors didn't kill your pump, it was coincidence. The pump only
pressurises the fuel rail to a preset limit. If anything, larger injectors
place more strain on a pump as it has to flow more fuel.
lou

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