[Main Performance Bulletin Board | BBFAQ | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos volvo amm Like This Post: - Subscribe to Daily Digest for this Bulletin Board Posted by Kevin K [Email] (#374) [Profile/Gallery] (more from Kevin K) on Mon, 21 Oct 2002 23:53:19 In Reply to: here's an idea, dave n, Mon, 21 Oct 2002 17:15:19 Alert me when someone posts in this thread: Members do not see ads below this line. - Help Keep This Site Online - Signup

the 85-89 740 2.3L turbo and na came lh 2.2, 30# inj at 3 bar, and big amm # xxx-xxx-007 with idle trim screw. they crank this combo over 250 hp. less pressure drop to.

note .. volvo amm has same # pins and related functions, but seq may be diff vs saab.

the risk for swap is that the amm output curve could be quite diff, and not a simple linear scale up of saab amm. splitsec.com now has a mapable amm interface, so the volvo amm curve could be trimmed to match saab ecu, if necessary.

use dvom with duty cycle or datalogger to monitor amm out and duty cycle, and raw o2 output. i'd try to use it with 32# inj's, and use small ext R to cut back ms, and 2 pin pressure switch to shunt out r for ~10% high boost enrichment.

the ext ohm method worked out by brad is a simple version of the arc1, with no offset trim and no ability to increase output gain. it really is an approx method, since the amm curve is a polynomial, and the ext R is really for just for a simple power relation of flow vs volts. but the mapped amm calibrator would be overkill for stock amm, since it's flow control limit is around 220 hp or so.

for the 2.4, consider 91-92 saab 9kt amm, or volvo amm xxx-xxx-016 from 90-92.

posted by 67.208.176...

• 7000 RPM with a stock ecu !!!!!!!!!!!!!!!!!!!!!!!!, michael , Sun, 20 Oct 2002 21:36:23
  • Its not stock if you changed the chip n/m, Brad, Mon, 21 Oct 2002 10:24:54
    • You are correct n/m, michael , Mon, 21 Oct 2002 10:55:34
  • Can our saab engines handle that?, IronJoe, Mon, 21 Oct 2002 00:59:32
    • Re: Can our saab engines handle that?, Simon S, Mon, 21 Oct 2002 15:06:09
    • Funny story..., Eric Law, Mon, 21 Oct 2002 12:34:04
    • Re: Can our saab engines handle that?, michael , Mon, 21 Oct 2002 10:59:38
  • amm limit?, Kevin K , Sun, 20 Oct 2002 22:37:50
    • here's another idea, Dan Schleifer, Mon, 21 Oct 2002 18:51:29
      • It would probably work...., Ragnar, Tue, 22 Oct 2002 01:51:32
        • Re: It would probably work...., Dan Schleifer, Tue, 22 Oct 2002 10:25:14
          • well..., Ragnar, Tue, 22 Oct 2002 12:03:33
            • how about .., Kevin K , Tue, 22 Oct 2002 12:55:11
              • don't leave me in the (2.4) dust..., Dan Schleifer, Wed, 23 Oct 2002 09:23:16
                • Sorry..., Ragnar, Wed, 23 Oct 2002 13:02:30
                  • Works for me., Dan Schleifer, Wed, 23 Oct 2002 14:35:25
                    • jetronic stuff, Ubipa, Wed, 23 Oct 2002 18:32:53
                    • It better be a lot of beer... ;) (n/m), Ragnar, Wed, 23 Oct 2002 15:01:44
                • 9k sys swap?, Kevin K , Wed, 23 Oct 2002 10:15:38
              • Should be possible, Ragnar, Tue, 22 Oct 2002 14:03:39
    • here's an idea, dave n, Mon, 21 Oct 2002 17:15:19
      • volvo amm, Kevin K , Mon, 21 Oct 2002 23:53:19 <-- Viewing This Message
        • Whoa. Speechless. nm, Taylor, Wed, 23 Oct 2002 11:26:59
    • some kind of answer, Ragnar, Mon, 21 Oct 2002 16:37:29
      • thanks n/m, Kevin K , Mon, 21 Oct 2002 16:58:27
  • When will the LH2.4 chip be available? Im interested!NM, Taylor, Sun, 20 Oct 2002 22:12:19
    • Re: When will the LH2.4 chip be available? Im interested!NM, BobJ, Mon, 21 Oct 2002 05:22:50
      • LH 2.4 nm, Taylor, Mon, 21 Oct 2002 14:52:54
        • Re: LH 2.4 nm, BobJ, Mon, 21 Oct 2002 17:43:20
        • Re: LH 2.4 nm, michael , Mon, 21 Oct 2002 15:32:48
          • Makes me wanna go pre90. Oh well. nm, Taylor, Mon, 21 Oct 2002 21:32:05

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