looking for information on d-jet 2056 conversion, calling all M.P.S. guys * need info.** |
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looking for information on d-jet 2056 conversion, calling all M.P.S. guys * need info.** |
orange914 |
Jan 17 2008, 08:31 PM
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#1
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
i am setting up my d-jet to operate the new 2056, it origanally was 1.7. i need some experianced input on running either a "modified perameter" 1.7 or 2.0 m.p.s. which of these 2 combo.s would work the best?:
1) a modified 1.7 (max. re-calibrated setting for 2.0) with increased fuel press. (note) higher fuel pressure increases atomazation so this combo may have benifit over #2? PROS: i could re-calibrate/use my good 1.7 M.P.S., CONS: have to adjust a/f with increased fuel press. at regulator and set on a/f scope 2) a modified 2.0 (able to set to 2056 fuel requirements) PROS:? keep stock fuel pressure CONS: have to locate/buy or trade a good 2.0 m.p.s. for re-calibrate answers to the below questions will be helpful in desiding how to go i'm trying to understand if the m.p.s. operation, does it have a profound (dont know if thats exactly the word i'm looking for) effect on the e.c.m.'s output for the full range of f.i. operation? would programing a 1.7 to 2.0 a/f settings + raised fuel injection press. do the same (or better?) than a reprogrammed 2.0 m.p.s. set to 2056 a/f calibration? when you re-program the m.p.s. what data exactly does it input to the computor? manifold pressure and?? is it very basic data or does it relay more complex values and ranges? if i go route #2 DOES ANYONE HAVE A 2.0 M.P.S. 4 SALE OR PARTS SWAP? thanks, mike EDIT NOTE: new info. from p.m. so it's basic duty is the same as a modern map sensor. if i adjusted fuel pressure higher it could find the balance a/f ratio by 1) increased pulse width (max. setting,) plus- 2) incress fuel pressure to fine tune a/f ratio across the board since m.p.s. is handling the three parameters. |
r_towle |
Jan 17 2008, 09:20 PM
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#2
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Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Use the 2.0 liter ECU and re-calibrate any MPS, 1.7 or 2.0 that you know is good.
Geoff in Seattle offers this service and he also has a 2056, so he will know exactly how to tune it, and will probably run it on his personal car with a A/F meter to set it up. Rich |
DanT |
Jan 17 2008, 09:23 PM
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#3
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Going back to the Dark Side! Group: Members Posts: 4,300 Joined: 4-October 04 From: Auburn, CA Member No.: 2,880 Region Association: None |
Use the 2.0 liter ECU and re-calibrate any MPS, 1.7 or 2.0 that you know is good. Geoff in Seattle offers this service and he also has a 2056, so he will know exactly how to tune it, and will probably run it on his personal car with a A/F meter to set it up. Rich Screen Name Blyseng....he did mine. (IMG:style_emoticons/default/biggrin.gif) |
orange914 |
Jan 17 2008, 09:34 PM
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#4
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
Use the 2.0 liter ECU and re-calibrate any MPS, 1.7 or 2.0 that you know is good. Geoff in Seattle offers this service and he also has a 2056, so he will know exactly how to tune it, and will probably run it on his personal car with a A/F meter to set it up. Rich Screen Name Blyseng....he did mine. (IMG:style_emoticons/default/biggrin.gif) dan, which m.p.s. did you have set? what other items did you have to deal with? did you scope acual a/f through the ranges? mike |
DanT |
Jan 17 2008, 10:08 PM
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#5
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Going back to the Dark Side! Group: Members Posts: 4,300 Joined: 4-October 04 From: Auburn, CA Member No.: 2,880 Region Association: None |
Use the 2.0 liter ECU and re-calibrate any MPS, 1.7 or 2.0 that you know is good. Geoff in Seattle offers this service and he also has a 2056, so he will know exactly how to tune it, and will probably run it on his personal car with a A/F meter to set it up. Rich Screen Name Blyseng....he did mine. (IMG:style_emoticons/default/biggrin.gif) dan, which m.p.s. did you have set? what other items did you have to deal with? did you scope acual a/f through the ranges? mike sent my original '74 2.0L mps to Geoff, he takes it apart, cleans things up a bit and then sets some stuff internally...static...then puts it on his car and makes the final adjustments....at least I believe that is the sequence. after I got it back put it on the motor and she started right up and has run without a glitch ever since. that was last April. ~10 AXs and 3 track days at Laguna. not one hiccup. Drove the car to several of the AXs at Candlestick and Marina... (IMG:style_emoticons/default/biggrin.gif) Plus I drive it in town ~1x per week...weather permitting...no heater. |
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