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Index > @ the Pickup Bed (General Topics) > Thread: Ignition ideas
Thread: Ignition ideas
sparky


Redlining
Posts: 299
posted November 17, 2008 09:44 AM

Ignition ideas

In the middle of restoring the 77 REPU and thinking about upgrading ignition. Currently have 1 gen rx-7 electronic with DLDFIS. I love this set up. Been thinking about adapting/upgrading DLDFIS to MSD with rev limiter. Anyone using this set up? How about MSD digital-6 plus? Any ignition ideas besides MSD are cool too.

       
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Jeff20B


Moderator
Posts: 661
posted November 17, 2008 11:29 AM
Edited By: Jeff20B on 17 Nov 2008 11:29

DLIDFIS for me.
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7

       
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repu510


Hauling
Posts: 141
posted November 17, 2008 03:33 PM
Edited By: repu510 on 17 Nov 2008 15:34

i thought the general belief is DLIDFIS is superior to MSD run ignition systems? i'm still running stock on my repu, so i have yet to try any of the published "upgrades", but plan to at some point.

i haven't read the article in a while, but i may take another look at it this week since my curiosity just got peaked again...

are there any updates to DLIDFIS?

       
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sparky


Redlining
Posts: 299
posted November 17, 2008 07:18 PM

Hey Jeff....
Can we run the MSD 6AL using DLDFIS? I thought the higher voltage supply to primary and mutiple spark discharges at lower RPM's would be an improvent. I was also wondering if the 6AL would handle wasted spark with 2 coils. Jeff...what coils are you using?
BTY...I used your wiring diagram and instructions to set up DLDFIS. Your an igniton genius.

       
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Jeff20B


Moderator
Posts: 661
posted January 02, 2009 11:52 AM
Edited By: Jeff20B on 2 Jan 2009 11:53

You can run one or the other but not both at the same time.

I tried an MSD with two stock coils in parallel for leading first. Then tried DLIDFIS and felt the MSD was a serious waste of money. I later sold the MSD and kept DLIDFIS.
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7

       
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sparky


Redlining
Posts: 299
posted January 02, 2009 02:16 PM

Thanks Jeff,
Looks like I'm changing it up a little bit. Seriously thinking about using Megasquirt for fuel injection and spark control. What do you think about using 2nd gen RX7 coil packs with the megasquirt???

       
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Jeff20B


Moderator
Posts: 661
posted January 09, 2009 12:49 PM

Most people use a second gen coil setup with a MegaSquirt because the OEM ignitor was designed to use a 5VCC trigger from the OEM ECU, which the MegaSquirt also can do. Makes a lot of sense and is easy to do on leading. As for trailing, well, like AM stereo, there are many ways to do it, and some are better than others, but I've found that trailing doesn't do anything for power and won't loose sleep over its absense. Still think AM stereo is cool, though.
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7

       
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blwfly


1st Gear
Posts: 33
posted January 10, 2009 10:33 AM
Edited By: blwfly on 10 Jan 2009 10:35

i have been using a msd6al fireing two accel coils for leading then i run trailing through the dizzy cap.

it seems to work really well
tho my msd box got wet and now it has trouble in the mornings until the car warms up.

a guy on the rx7club sells a transitor trick box that alows u to use the second gen coil with the j109 igniter.

jeff20b has lots experince in this area..
____________
74 repu getting a s4 t2

       
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Jeff20B


Moderator
Posts: 661
posted January 25, 2009 01:13 PM

I havn't tried the transistor trick.
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7

       
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