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 |
brant |
Feb 11 2014, 11:44 PM
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#2
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914 Wizard Group: Members Posts: 11,739 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
What brand of dyno is that? Calibrated?
How is the motor built? I've actually found the facets to be loud but last a long long time. Regulators should help smooth them out. And they don't seem to die. |
David Stowers |
Feb 12 2014, 05:58 AM
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#3
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Member Group: Members Posts: 99 Joined: 28-June 12 From: UK Member No.: 14,613 Region Association: None |
What brand of dyno is that? Calibrated? How is the motor built? I've actually found the facets to be loud but last a long long time. Regulators should help smooth them out. And they don't seem to die. I've no idea what brand of dyno, its the first and only time I've had a car on one and just dropped there in the morning and picked it up at lunchtime! I also have no idea how the motor was built. When I bought the car a year ago I thought I was buying a 2.0 car. When it arrived here in the UK I discovered it was a 1.7 car with a 1.8 motor! The guy I bought it from says he didn't know and sent me a copy of the ad he bought it from a year before and that stated it was a 2.0. I'm guessing its had some work internally as the dyno numbers would suggest increased bore/stroke and some cam changes but I've no idea what. I have tried without success to get hold of the previous previous owner on here but no luck. The car is a Zambezi green '73 MY car with Tan interior from the Boston are if anyone remembers it? Was off the road for a number of years, maybe as many as 10! |
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