MAF to MAP Conversion
Race Director
Joined: Sep 2001
Posts: 14,678
Likes: 751
From: NEwhere Ohio
I would assume an upgrade would be going from map (speed density) to maf (direct measurement of airflow) and sequential fuel i jection.
Cant tell you how many times i wish i had map/ sequential on my 93.....
Cant tell you how many times i wish i had map/ sequential on my 93.....
Team Owner
Joined: Jul 2004
Posts: 28,470
Likes: 3,289
From: Hartford WI
Wouldn't MAF have the additional piece to obstruct airflow? Now how much, IDK. Anyone?
Race Director
Joined: Sep 2001
Posts: 14,678
Likes: 751
From: NEwhere Ohio
I have heard of guys converting to speed density who had plans to make insane horsepower (ex. 1000 hp )
For the rest of us thT street drive our cars, a maf provides an accurate direct measurement of air flow for best gas mileage and driveability.
In my personal case, ever since i did the hotcam mod, i get a nasty exhaust smell at idle. No amount of tuning can fix it.
Basically there is more intake/exhaust overlap reversion (with a more radical cam) where both intKe Nd exhaust valves are open at the same time and the o2s see false air making the car run rich.
Its my understanding the later model 94 sequential / maf cars dont has as much an issue with this nasty idle as i do when they do more aggressive cams
Ive tried an open loop idle but never could get it to work (always reverts back to closed loop for some reason)
Melting Slicks
Joined: Jan 2008
Posts: 2,054
Likes: 120
From: AZ
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Team Owner
Joined: Jul 2004
Posts: 28,470
Likes: 3,289
From: Hartford WI
Team Owner
Joined: Jul 2004
Posts: 28,470
Likes: 3,289
From: Hartford WI
Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
On the other hand I did hear that a 383 6 spd had an issue in 6th gear at low speed and shuts down. Either way far as I know the stock computer works for what you are doing.
Team Owner
Joined: Jul 2004
Posts: 28,470
Likes: 3,289
From: Hartford WI
At what point, assuming a good tuner has the tools (sniffer, dyno, etc, etc), does the stock ECM become inadequate and we have to do something like an Accel DFI or Megasquirt, etc, etc.
Race Director
Joined: Sep 2001
Posts: 14,678
Likes: 751
From: NEwhere Ohio
Read my post. Trust me.....even Alvin tuned it in person (if you doubt my skills tuning)
All this said i have no experien e with maf, just ancedotal quotes that people with similR mods didnt have the sAme exhaust smell issues
All this said i have no experien e with maf, just ancedotal quotes that people with similR mods didnt have the sAme exhaust smell issues
Drifting
Joined: Jan 2005
Posts: 1,354
Likes: 325
From: San Antonio Tx
I used the EBL Flash ECM from dynamicEFI. Easy swap using Original harness. Just move a couple of wires in the connector. I built a sheetmetal air filter housing with a 4 inch tube from the housing to the throttle body. Easy to tune yourself with its own software. All you need is a laptop. And a wide band o2 if you want to tune open loop yourself. It allows you to run open loop idle if you have a big cam. Supports 1,2,or 3 bar MAP sensors if you are running boost.
Last edited by RWDsmoke; Sep 6, 2015 at 08:58 PM.
Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
It's strange. I know skidwnit was using a similar combo/ computer but he could tune his. His was out of a Camaro though if that matters.
Either way I want a supercharger in the future so I am fine with upgrading.
Melting Slicks
Joined: Aug 2003
Posts: 3,399
Likes: 395
From: Lakeville MI
You may be surprised to see what can be done with a maf and the 165 ecm,