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unlucky 01-23-2003, 04:49 AM What are you guys able to run on the B14 SR20 pumps? I find that at 4 bar, with 50lb MSD's.. even at 8psi, it feels like it's dropping pressure on the top end. I plan on upgrading the pump anyway.. just wondering what they can make stock.. Travis Big John 01-23-2003, 05:21 AM Travis, I don't recommend the stock pump for anythng more than about 200 whp. When my car dtno'd at 207 (many moons ago) it sucked on the top end. Changing the fuel pump alone found alot more power on the top end at the same boost settings. John djisnx2000 01-23-2003, 11:32 AM I ran at 12psi (230whp) with my stock DE fuel pump. I don't have any data about his like fuel pressure etc, but I was at stock fuel pressure, 370cc (or 390cc... who knows!)... unlucky 01-23-2003, 01:58 PM Originally posted by NismoDriver Travis, I don't recommend the stock pump for anythng more than about 200 whp. When my car dtno'd at 207 (many moons ago) it sucked on the top end. Changing the fuel pump alone found alot more power on the top end at the same boost settings. John Were you running the 4 bar 370cc program back then? I think it's the higher pressure of the 4 bar setup that the pump doesn't like. I'm running 4 bar on this one too... I'm going to switch it out this afternoon. Travis Big John 01-23-2003, 02:59 PM Back then it was with the FMU. I think you may be right with the whole pressure issue, I was running 70 psi. John | ||