 afm calibration, anyone know how to do it |
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| mattp |
 Feb 7 2007, 08:12 PM
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#1
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Member  Group: Members Posts: 257 Joined: 22-November 06 From: westchester NY Member No.: 7,252  |
anyone know how to calibrate one for a 1.8 engine?
When I open my throttle the sweeper does not go all the way? |
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| ClayPerrine |
Feb 7 2007, 09:01 PM
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#2
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Life's been good to me so far..... Group: Admin Posts: 16,523 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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QUOTE(mattp @ Feb 7 2007, 08:12 PM)  anyone know how to calibrate one for a 1.8 engine? When I open my throttle the sweeper does not go all the way? It may not. That spring is designed to hold against a wide open throttle at high engine RPM under load. It may not go all the way without the load on the engine. I have the calibration gauge. Unfortunately, the meter that is supposed to work with the gauge is INOP. If you have altered it, I would suggest that you get a replacement. I would not suggest a rebuilt one, as they are calibrated for a VW type I. The spring and wiper adjustments are different for a Type IV. |
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| Cap'n Krusty |
Feb 9 2007, 11:36 AM
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#3
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
QUOTE(ClayPerrine @ Feb 7 2007, 07:01 PM) QUOTE(mattp @ Feb 7 2007, 08:12 PM) anyone know how to calibrate one for a 1.8 engine? When I open my throttle the sweeper does not go all the way? It may not. That spring is designed to hold against a wide open throttle at high engine RPM under load. It may not go all the way without the load on the engine. I have the calibration gauge. Unfortunately, the meter that is supposed to work with the gauge is INOP. If you have altered it, I would suggest that you get a replacement. I would not suggest a rebuilt one, as they are calibrated for a VW type I. The spring and wiper adjustments are different for a Type IV. Why would a T4 airbox be calibrated to T1 specs? Different plug, different number of pins, different intake boot diameter, and a different engine with different characteristics. The T1 airbox WON'T FIT on a T4 engine, and vice-versa........ The Cap'n BTW, IIRC, the 914 airboxes (2 or 3 or more part numbers), have been NLA for years. NOT the same as 2 litre busses. |
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Posts in this topic
mattp afm calibration Feb 7 2007, 08:12 PM
jim_hoyland When a rebuild meant for a VW is used on a 914, wh... Feb 7 2007, 09:22 PM banger You can use a wideband O2 sensor to calibrate it, ... Feb 7 2007, 11:33 PM Mueller
anyone know how to calibrate one for a 1.8 engine... Feb 7 2007, 11:38 PM Bleyseng Use the LM1 meter and adjust the sweeper (loosen t... Feb 8 2007, 12:16 AM
banger You probably want to run a little lower than 14 fo... Feb 8 2007, 02:10 AM Bleyseng You can try 13.7 to 1 but that seemed too rich in ... Feb 8 2007, 10:15 AM Bleyseng pic of inside of the AFM. Loosen the screw after r... Feb 8 2007, 01:01 PM jim_hoyland Nice illustration of te AFM adjustment; what is an... Feb 9 2007, 06:08 AM jd74914 Its a wideband O2 sensor Jim. Feb 9 2007, 09:35 AM Bleyseng http://www.innovatemotorsports.com/products/lm1.ph... Feb 9 2007, 10:12 AM jim_hoyland Thanks for posting the link. Thats very interestin... Feb 9 2007, 08:49 PM banger If you need one some time, I have one Jim. could ... Feb 9 2007, 11:23 PM jim_hoyland Update.
Thanks Chris for bringing your wideband se... Feb 10 2007, 06:46 PM Bleyseng So what is the difference in the AFM as the part n... Feb 9 2007, 03:28 PM Bleyseng Great tuning tool for $400! :trophy: I h... Feb 9 2007, 10:58 PM Bleyseng Well, tell us what your readings were! Share... Feb 11 2007, 12:59 AM banger Readings were around 14.2-14.5 at idle, and 13.5 a... Feb 11 2007, 01:55 AM bd1308 man tuning that afm blindly is harder than my rust... Feb 11 2007, 03:00 AM Bleyseng A mite lean I'd say Feb 11 2007, 11:23 AM jim_hoyland Interestingly it doesn't run hot like it had b... Feb 11 2007, 02:23 PM Bleyseng ok, check this out on adjusting the AFM arm. Feb 11 2007, 02:43 PM jim_hoyland K-
Thanks. Feb 11 2007, 04:32 PM |
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