Fuel starvation when maxing out? |
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Fuel starvation when maxing out? |
David Stowers |
Feb 10 2014, 07:01 AM
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#1
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Member Group: Members Posts: 99 Joined: 28-June 12 From: UK Member No.: 14,613 Region Association: None |
My 914 is running a 1.8 (ish!) 40 Dellortos and recently recorded 111BHP and 121lbft of torque after a carb set up so yesterday I went to have a little thrash about.
A couple of times when the traffic cleared I really kept my foot flat down and pushed to over 100MPH on a slight uphill. It was still pulling strongly for a few seconds then seemed to lose power and splutter slightly. I backed off and it returned to normal. It seemed like the carbs emptied as if the fuel pump couldn't keep up. I had the heater on and the rich oily aroma changed to a hot sharp smell like it suddenly ran lean. It's running the small square facet pump mounted up front near the master cylinder. Any ideas please Thanks David |
barefoot |
Feb 12 2014, 07:25 AM
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#2
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Senior Member Group: Members Posts: 1,323 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States |
Got me thinking about my own Dello conversion (done by PO). Haven't got car running yet, but I'm concerned about fuel tank venting. PO did not have a gasket on fuel tank filler cap, so plenty of venting there. I'm not satisfied with this and want to insure adequate venting, but minimize unwanted vaporization and pollution. So thinking of using the leftover small plastic line leftover from the old FI as a vent. What do you use ?
If unvented (or inadequately vented), possibly at high load vacuum built up in tank may hinder pumping capacity. |
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