Sequential injection help + other tips

zero185

New Member
Dec 6, 2009
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Oklahoma
Well am taking on my first full build and started doing reasarch. Found that there are a lot of problems when using a AEM EMS 30-1130 box w 1200cc injectors. Recommended solution is rewirering to sequential injection but I'm not really shure wat all need to be done or if any other parts are needed. If anybody has done this before it would be of great help. Curren plans are AEM EMS, RC 1200cc injectors, T72, Wiseco 10.5-1 pistons, Eagle rods and Walbro fuel pump. Also changin over to speed density. Any ideas or suggestions whould be great.
 

GC89

1J-THIS
Jun 13, 2007
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1200cc being pushed by a walbro??? Id plan for a better pump I wont trust a walbro with stock injectors, bu thats just me. Interested to see what you come up with for sequential though.
 

toyotanos

What will we break today?
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Nov 29, 2008
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Coon Rapids, MN
Fred's got it. Do the DH61 igniter and the 2JZ-GE ignition coils. You end up with an NA 2JZ ignition systems and it has worked flawlessly with my AEM.

For the sequential injection, there is a guide somewhere around that guides you as for what pins to run the injector wires to, but it involves cutting open the harness and adding 3 more wires. I vote to do both, just like my car ;) but that's just me. My car isn't running big injectors yet, but its response was much better with Seq. EFI and the better ignition system. Very worth the time.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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toyotanos;1513179 said:
Fred's got it. Do the DH61 igniter and the 2JZ-GE ignition coils. You end up with an NA 2JZ ignition systems and it has worked flawlessly with my AEM.

For the sequential injection, there is a guide somewhere around that guides you as for what pins to run the injector wires to, but it involves cutting open the harness and adding 3 more wires. I vote to do both, just like my car ;) but that's just me. My car isn't running big injectors yet, but its response was much better with Seq. EFI and the better ignition system. Very worth the time.
I ran 1000cc RC's here in the 7M and it idled like a stock engine even with 280 Cams, would have been a lumpy mess batch injection.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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zero185;1513315 said:
I'll take the dual Walbro into cosideration but have yet to find a hager.

4737d1245120265-di-meeting-private-garden-june-2009-hagar-horrible.jpg


or

sammy-hagar.jpg


Your choice ;)
 

zero185

New Member
Dec 6, 2009
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Oklahoma
Managed to get a dh61 igniter fo $80 but the wiring in the description is for a difirent box not the 30-1130 box wich I'll be using.
 

gofastgeorge

Banned
Jan 24, 2008
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Texas
Um.........
10.5 cr on a turbo motor ??
Pardon my opinion, but are you looking to blow that thing up right away ??

Oh, and 1200 injectors is pointing at what. 1000 HP?
Also an opinion, but I would not trust Eagle chinese rods to that level.......
 

zero185

New Member
Dec 6, 2009
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Oklahoma
I figured some one would say something about that. No need for a high level of boost. Response is incredible. Did same set up on a ka24de and other motors. First time on a 7m.

As far as the injectors not too sure as to what whould be enough.

The set up works well but you have to be a good tunner. Its all about the tune.

At the same time I respect everybodys opinion. Thanx for the input. More tips are welcomed.
 

ae86ma70

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Jul 24, 2008
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Atlanta
The 30-1110 box (87-88 7M-GTE) and the 30-1130 box (89-up) are the same, just with different ECU connectors. The writeup for removing multiplex has links to the ECU pinouts.