Converting from EST To Vacuum Advance Distributor
#1
Converting from EST To Vacuum Advance Distributor
Hey guys, I have a Miniram and AFR set up and I want to go with a vacuum advance HEI distributor and an MSD 6AL2 igniton box.
I think that this will require a crank trigger so that computer will fire the injectors. The only problem is, the crank triggers that I've looked at are pretty expensive, around $250.
Is there a cheaper alternative? Or would I be forced to buy one for $250?
Also, what else would I need to complete this conversion?
I am using the 870 ECU by the way.
Thanks!
I think that this will require a crank trigger so that computer will fire the injectors. The only problem is, the crank triggers that I've looked at are pretty expensive, around $250.
Is there a cheaper alternative? Or would I be forced to buy one for $250?
Also, what else would I need to complete this conversion?
I am using the 870 ECU by the way.
Thanks!
#2
Moderator
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Converting from EST To Vacuum Advance Distributor
The cheaper alternative is to keep the timing electronic.
#3
#4
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,113
Received 1,687 Likes
on
1,282 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Converting from EST To Vacuum Advance Distributor
http://performancedistributors.com/p...-distributors/
Get a different ECU. Get rid of that Stone Age stock crap. A mech dist is The Wrong Answer. No matter what the question is.
Get a different ECU. Get rid of that Stone Age stock crap. A mech dist is The Wrong Answer. No matter what the question is.
#6
Supreme Member
iTrader: (13)
Join Date: Apr 2005
Location: Not in Kansas anymore
Posts: 7,732
Likes: 0
Received 11 Likes
on
11 Posts
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Converting from EST To Vacuum Advance Distributor
"One major problem when tuning for this ECM is that the diagnostic data is transmitted at only 160 BAUD!.
This works out to about a 1.25 second interval between the 25 Bytes of data.
I have only been able to get about 6 to 8 data samples during a Quarter-Mile DragStrip run which you can imagine does not
provide much feedback for tuning.
The ALDL data rate of the 1227165 (165) ECM can supply diagnostic data at 8192 BAUD. The data stream of 64 Bytes cycles through
every 62.5 milliseconds (16 per second) at this BAUD rate. "
Maybe you should consider the FAST system that only does fuel control ?
https://www.thirdgen.org/forums/dfi-...-about-ez.html
https://www.thirdgen.org/forums/dfi-...i-install.html
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
05-10-2023 07:19 PM
86IROC112
Engine/Drivetrain/Suspension Parts for Sale
4
08-17-2015 02:00 PM