 Most power at 1/3 throttle, Anyone else? |
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| McMark |
 Aug 27 2003, 09:29 PM
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#1
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914 Freak!  Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None  |
I've noticed that my car makes the most power at 1/3 throttle. Any farther and it just bogs and makes even less power. Anyone know what that's all about? What's going on?! (IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/huh.gif)
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| McMark |
Aug 28 2003, 01:14 AM
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
It's been running like this since I got it running. It's a 1.7 with stock D-Jet. I have a rebuilt distributor on order, so I'll see if that helps. It's got a Pertronix which I won't be switching into the new distributor right away. I'm going to hold back on that and run points for awhile just to make sure the Pertronix isn't a problem. It's got a new rebuilt alternator in it. I've suspected the car was running rich for awhile, but I don't really have the tools or the knowledge to know for sure. If I press the throttle to the "sweet spot" it pulls nice and hard (as hard as a 1.7 pulls) all the way to redline. Cap, rotor, wires and spark plugs are new. Plugs are gapped at 0.035 since the Pertronix puts out more power. It runs smooth when it's at the "sweet spot" so I don't think the gap is a problem. I bought the rebuilt distributor because there is a slight bucking while accelerating and I'm pretty sure it's related to the vacuum advance. So maybe there's some dynamic timing issues. Any more ideas? It'd be great to be able to drive my car out of town. Thanks! (IMG:style_emoticons/default/lol3.gif) (IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/lol2.gif)
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Posts in this topic
McMark Most power at 1/3 throttle Aug 27 2003, 09:29 PM
redshift Overly rich, under-volt, dirty rotor, mis-gapped, ... Aug 27 2003, 09:52 PM Racer Chris At what rpm? Carbs or FI? Did this just happen? Aug 27 2003, 10:13 PM Bleyseng Something is big time wrong if that's the case... Aug 27 2003, 10:16 PM Brad Roberts Pressure sensor.
B Aug 28 2003, 01:15 AM Racer Chris The TPS provides additional enrichment as the thro... Aug 28 2003, 05:49 AM 2teeners I'd suspect a fuel supply problem, maybe a clo... Aug 28 2003, 05:59 AM vsg914 Maybe its that Napa Valley wine in the gas tank? L... Aug 28 2003, 06:14 AM Bleyseng I think that its both electrical and MPS. I think... Aug 28 2003, 08:36 AM Brad Roberts Show us the vaccuum gauge you use Geoff.
B Aug 28 2003, 10:24 AM Bleyseng I don't have the camera with me but I'll p... Aug 28 2003, 10:47 AM ChrisReale I dont think you are supposed to re-gap the plugs ... Aug 28 2003, 12:12 PM McMark Got my rebuilt distributor today, looks very nice.... Aug 30 2003, 12:23 AM Brad Roberts Mark..
can you stop by this weekend ?? I'll b... Aug 30 2003, 12:24 AM
McMark Forgot the image... Aug 30 2003, 12:25 AM |
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