 Cyl 1-2 head running hotter, why? SOLVED!, 1,7 D-jet with NOS heads |
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| 914_teener |
 Mar 6 2013, 07:29 PM
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#21
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914 Guru  Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California  |
QUOTE(larss @ Mar 6 2013, 10:47 AM)  QUOTE(nathansnathan @ Mar 6 2013, 07:42 PM) I would think there would be problems with setting it so low as 700, that it would cause a "flat spot" off idle if it doesn't start advancing right away. Yes, thats true, I have experienced a significant flat spot from take off when having it at 700rpm. /Lars S Have you really checked everything? Have you checked your distributor cans and mechancial advance plates. This is Djet........You shouldn't have a flat spot with everything set and working corredtly. |
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| nathansnathan |
Mar 6 2013, 07:55 PM
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#22
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Senior Member Group: Members Posts: 1,052 Joined: 31-May 10 From: Laguna Beach, CA Member No.: 11,782 Region Association: None |
QUOTE(914_teener @ Mar 6 2013, 05:29 PM) QUOTE(larss @ Mar 6 2013, 10:47 AM) QUOTE(nathansnathan @ Mar 6 2013, 07:42 PM) I would think there would be problems with setting it so low as 700, that it would cause a "flat spot" off idle if it doesn't start advancing right away. Yes, thats true, I have experienced a significant flat spot from take off when having it at 700rpm. /Lars S Have you really checked everything? Have you checked your distributor cans and mechancial advance plates. This is Djet........You shouldn't have a flat spot with everything set and working corredtly. My comment is based on my experience with different mechanical advance curves and settings only, like how an 050 feels compared to a 009 compared to a properly set mallory with carbs. My experience with low idle is that it takes longer to get to the rpm to release the clutch. My 050 felt so slow on account of that. Could be I'm thinking about it wrong. (IMG:style_emoticons/default/smoke.gif) It does get delicate, the slower it turns, has to run smoother to do it. It's certainly hard with carbs to get a good balance. Interesting, about the difference in distance from the fan outlets being the cause. With the outlets being different size already accounting for the extra needed for the cooler and the duct being larger, it might be thought of like a McDonald's straw, more all or nothing. It has always seemed to me the system works well within certain prescribed parameters, picturing the intersection of graph lines to be even when it is needed, so the less-than-normal idle speed seems it could be reason enough. (IMG:style_emoticons/default/popcorn[1].gif) |
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| larss |
Mar 6 2013, 11:26 PM
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#23
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Member Group: Members Posts: 428 Joined: 10-September 09 From: Sweden Member No.: 10,787 Region Association: Scandinavia |
QUOTE(914_teener @ Mar 7 2013, 02:29 AM) Have you really checked everything? Have you checked your distributor cans and mechancial advance plates. I can never say everything is checked working 100% but I have gone through the distributor OK. If I set the full advance to more than the std 27 (say 30) I can get rid of most of it. Also setting the idle higher makes it better. QUOTE(914_teener @ Mar 7 2013, 02:29 AM) This is Djet........You shouldn't have a flat spot with everything set and working corredtly. Having the idle at 700 is not set correctly to factory spec... /Lars S |
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| 914itis |
Mar 6 2013, 11:30 PM
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#24
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Advanced Member Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States |
Deleted , got it.
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