drifterx27

iTrader: (1)

Got the vvti coil pack conversion done, and it's no good. I can't boost past 21psi. Looks like I need to do the LQ9 conversion, because more spark. So yeah, I'm pissed that I wasted my time doing this, but if I do the LQ9 setup I should be done, forever. I will probably contact Mojo and see if there's a cheap option as I don't need his bracket to hold the packs, and I already wired everything for the vvti setup so I think I can just add 3 more connections for the extra 3 coil packs and get them working. Or just rip out all the stuff I just did and do his full harness, it might be better in the long run.

Fudge...

drifterx27

iTrader: (1)

I have a friend that works at a Nissan dealership that is able to order the LQ9 AC Delco coil packs for $280. Seems like a good price. So I will order those and then hope they fit under the intake manifold.

BAD954BOI

iTrader: (5)

Wow that new sucks.. And this is brand new coil packs that was tested?
It is said to be able to boost over 30psi without a amplifier... What is the car doing at 20psi?

drifterx27

iTrader: (1)

It breaks up. Originally I was only around 19psi, then gapped down the plugs some more and max was 21. They are used coils.

I don't think I've seen anyone pushing around the same power as me with vvti coils. LQ9 is proven on 1000hp+ cars, so I should be fine with these. I now know what I'm doing with these coil conversions so I know I can knock out another one rather quickly.

I ordered brand new AC Delco 10457730 coil packs. I will test fit and make sure it clears before I order the Mojo harness.

gerrb

iTrader: (34)

Are these the sam coil packs used/sold by Mojo ? That's good price ! Thinking of using them on my other SC Project .

drifterx27

iTrader: (1)

Yes same as Mojo. It's an awesome price. And it's for 8 so I have some spares just in case.

gerrb

iTrader: (34)

good deal then ... . The cheapest I have seen them is $240 for 8 on Ebay . Looking forward for your feedback before I get a set for my other SC.

drifterx27

iTrader: (1)

That's some luck then? I'm worried if they will fit under the stock intake manifold. Most people on the forum that have converted to LQ9 have swapped the intake manifold to the FFIM before doing the coil pack conversion. I wonder if I will be the first one on a stock manifold trying this?

HiPSI

iTrader: (2)

From my random searching and researching I've seen people make 1/4" to 3/4" spacers that mount in between where the lower runner meets the upper runner providing enough room for the larger height coils. You could possibly find an old upper runner and have the flange hacked off and milled flat and use two gaskets on each side as a spacer.

drifterx27

iTrader: (1)

Sounds good. I will keep that in mind and maybe I can find someone that can make me a nice CNC'd flange and bracket.

8052JZ

iTrader: (13)

Hey how do you plan to run the lq9 coils?

drifterx27

iTrader: (1)

What do you mean?

8052JZ

iTrader: (13)

I've seen quite a bit of people other than the lexus/toyota community run these coils as wasted spark. Was wondering if that was the way you plan to run these as wasted spark or sequential? Running wasted sparked seems a bit easier sense you did the cop conversion already and all that needs to be done is move three wires directly to the ECU.

Also, Mojo states in his instructions that they can be configured to run as wasted spark as well.

drifterx27

iTrader: (1)

That's how I will be running it. I don't see a need to be running it as sequential.

8052JZ

iTrader: (13)

Awesome, let us know how it works out.