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| Author: | gafmo [ Tue Nov 16, 2010 7:07 pm ] |
| Post subject: | Needles |
998 with 1 1/2 SU 0.90 Jet Mini sports Inlet manifold GR83 Cam and the Head has been tickled & 1.75 exhaust with & LCD. Any Suggestion on a Needle. I'm going to buy 3 and fiddle around with all three. I have a Red Spring and for the price I may purchase a Blue also I also found this link..anyone tried it |
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| Author: | mini maxx [ Tue Nov 16, 2010 7:13 pm ] |
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| Author: | GT mowog [ Tue Nov 16, 2010 7:15 pm ] |
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Mate I just picked up about 200+ needles today. PM me when you think you know what you need 
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| Author: | 74snail [ Tue Nov 16, 2010 7:32 pm ] |
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HG fixed needle, John Schmidt " Mini King " confirms this was the correct 1071 Cooper S needle so it matches your specs.
Mysteriously last time I posted this he sold out in two days, so I missed out on one , I,m using a No 7 fixed in my standard ( sort of ) 1100 and am keen to try the HG fixed 
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| Author: | gafmo [ Tue Nov 16, 2010 7:32 pm ] |
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sorry about that http://homepage.mac.com/crscapps/CSA/Page1/Page1.html |
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| Author: | simon k [ Tue Nov 16, 2010 8:40 pm ] |
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74snail wrote: HG fixed needle, John Schmidt " Mini King " confirms this was the correct 1071 Cooper S needle so it matches your specs.
.not when there's only one carb.... HG is going to be way too lean my SU search thingy is better Gaf
http://www.morrismini.com/SUNeedlesV2.aspx?linklist=7;HG;&size=.090 |
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| Author: | gafmo [ Tue Nov 16, 2010 9:07 pm ] |
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7 does sound interesting as the GR83 comes on around 2200 and good all the way to 6 and I don't want it to lean out during this period. Where the HG does look like it leaner during this time Any 1 tried a CQ or E3. I have tried a EB and the engine was over heating which any of the above are richer so hopefully should nut that |
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| Author: | drmini in aust [ Tue Nov 16, 2010 9:09 pm ] |
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Jim I have a 7 and a dozen others you can try |
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| Author: | simon k [ Tue Nov 16, 2010 9:31 pm ] |
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gafmo wrote: 7 does sound interesting as the GR83 comes on around 2200 and good all the way to 6 and I don't want it to lean out during this period. Where the HG does look like it leaner during this time
Any 1 tried a CQ or E3. I have tried a EB and the engine was over heating which any of the above are richer so hopefully should nut that EB would be a dog... http://www.morrismini.com/SUNeedlesV2.a ... &size=.090 did you figure out how the search thing works? |
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| Author: | 74snail [ Tue Nov 16, 2010 9:48 pm ] |
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simon k wrote: gafmo wrote: 7 does sound interesting as the GR83 comes on around 2200 and good all the way to 6 and I don't want it to lean out during this period. Where the HG does look like it leaner during this time Any 1 tried a CQ or E3. I have tried a EB and the engine was over heating which any of the above are richer so hopefully should nut that EB would be a dog... http://www.morrismini.com/SUNeedlesV2.a ... &size=.090 did you figure out how the search thing works? If I,m reading it right , its what I thought before , the No 7 is a bit lean at highway speeds and the HG better, and the HG is a bit leaner at traffic speeds which probably isnt good for a high lift cam but would suit something milder like a Kent 266, food for thought. . |
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| Author: | gafmo [ Tue Nov 16, 2010 9:53 pm ] |
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yep got it now Simon Thanks for that and I like that grid/graph also I like the look of the CQ as is similar to a ABD which is a spring loaded needle and no good for me Thanks Kev & GT
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| Author: | mattsmadmini [ Tue Nov 16, 2010 11:30 pm ] |
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simon k wrote: gafmo wrote: 7 does sound interesting as the GR83 comes on around 2200 and good all the way to 6 and I don't want it to lean out during this period. Where the HG does look like it leaner during this time Any 1 tried a CQ or E3. I have tried a EB and the engine was over heating which any of the above are richer so hopefully should nut that EB would be a dog... http://www.morrismini.com/SUNeedlesV2.a ... &size=.090 did you figure out how the search thing works? no 
wat am i looking at? |
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| Author: | simon k [ Wed Nov 17, 2010 10:35 am ] |
| Post subject: | |
74snail wrote: simon k wrote: gafmo wrote: 7 does sound interesting as the GR83 comes on around 2200 and good all the way to 6 and I don't want it to lean out during this period. Where the HG does look like it leaner during this time Any 1 tried a CQ or E3. I have tried a EB and the engine was over heating which any of the above are richer so hopefully should nut that EB would be a dog... http://www.morrismini.com/SUNeedlesV2.a ... &size=.090 did you figure out how the search thing works? If I,m reading it right , its what I thought before , the No 7 is a bit lean at highway speeds and the HG better, and the HG is a bit leaner at traffic speeds which probably isnt good for a high lift cam but would suit something milder like a Kent 266, food for thought. . the Y axis is thou, so the smaller the number, the thinner the needle... #7 is a lot richer than HG. #7 would be nice, because you'd set it up with a good idle, and a relatively weak spring. It'd open up quick, and not lean out From what I've been finding (with my limited knowledge), the general recommendations from 30 years ago (Vizard et. al.) are all too lean with todays fuels. I put this down to the rubbish they're made from, and the atomisation properties designed in to them to suit injection, which doesn't necessarily suit our motors. According to Vizard, our motors prefer a bigger droplet, so a richer needle I wish I had my own dyno and a 998 with a 1 1/2" carb to play with and see what works and what doesn't... matt wrote: what am I looking at?
side-by-side comparisons of SU needles. If you load a needle into the pink bit at the left, then put a 'filter' checkbox(es) beside a station(s), then a number (IE 20 = 0.020") in the richer and/or leaner box, then click search, it'll show you needles that are the richer or leaner The blue bar (short list) gives you a way to cut through the clutter and keep a list of your favourites to compare against each other So for instance, if you had a HG, and it was OK, but too lean when you were at wide open throttle at high revs, you'd put look it up in the pink bit, then filter on station 11 (to start with), and put 150 in the richer box. Clicking search, you'd see crap loads of needles, all within .150" richer at station 11, so refine your search, repeat, repeat, repeat You might filter station 3 to be .010" richer, cos you only want a little bit there. When the search results are sensible-ish, pick out a few by their colours, put them in your short list, then keep refining for instance I ended up looking at a CR needle http://www.morrismini.com/SUNeedlesV2.aspx?linklist=7;CR;HG;&size=.090 |
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| Author: | drmini in aust [ Wed Nov 17, 2010 6:21 pm ] |
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Another website that shows a graphical comparison of needle richness/leanness, up to 5 needles at a time: http://www.mintylamb.co.uk/suneedle/ |
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| Author: | simon k [ Wed Nov 17, 2010 6:36 pm ] |
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drmini in aust wrote: Another website that shows a graphical comparison of needle richness/leanness, up to 5 needles at a time:
http://www.mintylamb.co.uk/suneedle/ that one is dumb... there's no way to find needles, only to compare ones that you already know |
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