Review: Decipha's Mechanical Idle mod

Good experience? Bad? Or just want to compliment or complain about an experience you've had with a company or individual? This is the place for all reviews good or bad.

Review: Decipha's Mechanical Idle mod

Unread postby fox bodies rule » Thu Apr 24, 2014 6:23 pm

If you have an unmanageable idle due to a big cam -listen up E cam guys- make financial arrangements with Decipha to get your tune fixed up with his Mechanical Idle mod. Please note: if you have mechanical issues this won't fix them, fix the vacuum leaks, trouble codes etc. first. Now I have been fighting a lopey idle that would actually "learn" to hunt at idle. Mike and I have been working this off and on for at least three years now (I was the delay due to neighbors, weather and having to get it up to temp every time there was a change) and did all of the common "fixes" like locked advance at idle, going OL all the time, OL at idle only and everything else under the sun. We got it to idle pretty decent but it was still a crap shoot as the slightest little thing would send it back off the deep end and the EEC was pretty much out of the idle loop at this point, only thing active was dashpot. I was apprehensive at first about the MI mod because nothing had worked before but I cleared the KAM's, loaded in the tune and fired her up. The idle was well behaved from the get go, none of this hunting crap until the EEC figured itself out and needing to be at full operating temp to start the "learning" process-I just backed out of the garage and drove away. The ONLY thing you have to dial in is the TB stop screw to bring IPSIBR down to <.05 after she warms up. Of all the stuff Mike has done for us EEC-IV users this is the best yet IMHO, I give it 5 stars ... can't recommend it highly enough! :D
fox bodies rule
Premium Member
 
Posts: 20
Joined: Tue Aug 13, 2013 9:52 am
Vehicle Information: '90 hatch, 347 short rod, AFR 185 heads, FTI cam, 10.6:1 scr, 42# FR, ProM 75mm, RPM II, 75mm TB, LT, A9L, Tweecer, BE, BA, WB, blah blah blah

Re: Review: Decipha's Mechanical Idle mod

Unread postby decipha » Thu Apr 24, 2014 8:15 pm

glad it worked out for you, always good to hear that things are going positively
User avatar
decipha
Tooner
 
Posts: 14756
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Ponthieux
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce

Re: Review: Decipha's Mechanical Idle mod

Unread postby Shaker666 » Sat May 10, 2014 4:22 pm

Sounds like what I need to do as well. I'm using a a Comp Cams 284 Magnum hydraulic roller retrofit cam. Specs at 0.006" are 284/284 @ 0.533"/0.533", with 110 LSA and 224/224 @ 0.050". I'm running 1.7 ratio rockers, so lift is actually 0.566" I think the cam is similar to the Motorsport E303 cam.

I'm stuck in dashpot all the time... not really sure how to even begin tuning it. I've read the Idle Air 101, but I still don't really have a grasp on what the exact sequence of procedures are to get it sorted out.
'89 supercharged 8.6:1 5.0 Mustang: EEC-IV (GUFB:A9L) with EDIS8
'79 Bronco: 8.5:1 408M EEC-IV (GUFB:X3Z) with EDIS8
'71 Mach 1: RIP, but was CDAN4 on a 10:1 408W
'66 Mustang GT: needs EFI
'00 Mountaineer: 9.15:1 302W EEC-V, EDIS, 4R70W stock
'08 Buell: 10:1 DDFI-3
'09 Buell: 12.3:1 DDFI-3
User avatar
Shaker666
Power Poster
 
Posts: 423
Joined: Thu Oct 17, 2013 10:23 pm
Location: Tucson, AZ
Name: Manu "Shaker" Singh
Vehicle Information: '89 Mustang 5.0 LX Sport: blown 8.6:1 306 EEC-IV+EDIS8. Ported Vic Jr. heads, LMAF, Accufab 90mm TB, KB 2.2 Blowzilla w/Flowzilla, Deka 80s, AEM dual nozzle water injection, shorty stainless headers into 2.5" X-pipe, dual O2. A9L2 QH tuned.
Vehicle 2 Information: '79 Bronco Ranger XLT: 8.5:1 400 EEC-IV+EDIS8 ignition. Stock heads, LMAF, Ford 65mm TB, Cobra upper, 351W GT40 lower, Ford 24s. Full length headers with 1.75" primaries into 3" Y-pipe, single O2. TwEECed A9L.
Vehicle 3 Information: '71 Mustang Mach 1: Totalled
Additional Vehicles: '08 Buell XB12Ss Lightning: factory 10:1 motor with DDFI-3 control. Drummer exhaust, dual O2 mod, baro mod. DDFI-3 tuned via TunerPro RT.
'09 Buell 1125CR: factory 12.3:1 Rotax engine w/DDFI-3 control. APH Engineering exhaust, K&N air filter, tuned via TunerPro RT.
'07 Mazda 3S: mainly stock, minor suspension and chassis reinforcements.
'00 Mountaineer: 9.15:1 302W EEC-V, integral EDIS8. Stock with exception of 1" TFS intake spacer, cold air intake, and Magnaflow exhaust.


Return to Reviews, Compliments & Complaints

Who is online

Users browsing this forum: No registered users and 1 guest

cron