There sure is! The is the MSD DIS4, HKS DLI and AEM CDI.

However, you must either switch out the coils on the car since they will not work with coils with built in igniters as Nissans have. Or you can rewire the trigger to the coil and rewire the coil grounds to the booster so it is ground switched "bypassing" the internal igniter, you can then use a Supra igniter or other igniter to switch the coils. (kind of messy - I have tried this before)

Some Supras use the DLI or CDI. I have the HKS twin power DLI on mine. It gives you a nice higher energy spark. When you run higher boost and higher rpm it becomes a necessity. The spark energy diminishes at higher rpms since there is less time to charge the coils. Lack of spark leads to incomplete combustion (hence his rather fat 11.1 AFR). You can also try to advance timing a certain amount to help this situation. More complete combustion = more power. The high EGTs may well be the flow of the exhaust. If hot gases don't get out fast enough, that will cause higher EGTs even though the fuel is OK.

 

I have heard mixed results with LS1 coils. We have used honda CBR coils (yes motorcycle coils) which seem to work good. MSD is easy to wire up but again mixed feelings about MSD ignitions, they are not very well made (internally). Too bad Crane doesn't make a DIS one yet. I am surprised no one else has tried one of these ignition boosters yet! (Or may be they have?)

What units are you talking about that boost voltage under throttle? If you are talking about the fuel pump voltage booster, I would not waste my money on those. You could buy a nice high capacity in-line pump for that money, or put twin Walbro pumps in! Oh ... missed the bit about $70. Can't be much use if it is $70. Reliable voltage boosting for a car is not cheap!

 

Everybody was saying the HKS dual ignition does nothing for our cars.

 

People say that because 99% of the people who ask about putting an ignition upgrade on our cars are bolt on guys or stock, those guys aren't blowing out sparks or seeing the cylinder pressures high powered boosted cars do, nor do they have their spark plugs gapped like the higher powered boosted guys do. They are just guys who think "hey my friend's friend's friend put an MSD ignition on his Civic or 5.0 so it must work for the Maxima, right" which is not the case when you have an ignition system like ours. When you start really putting down some power though it's possible to go beyond the scope of what our ignition system can handle. When you start blowing out your spark an ignition booster will definately help imho.

 

Neal is correct. This will not help bolt-on guys or stock guys. One more thing I thought of also is this. Matt, you are also running J&S. The J&S requires that you run the car as wasted spark set up (firing each coil twice per revolution). If your ECU also raises the rev limiter to 7000 rpm, then you can get into trouble pretty quickly. Raising the rev limiter in itself is not running the coils much past their design limit since there is plenty of design margin. But if you run them at more than twice the designed rate, expect to have issues when you get into higher boost and higher revs. The J&S and higher rev limit will push coils to 215% of what they are designed for. I think dialing out the fuel is OK but I am not sure that you will gain much if any power.

 

Actually, if I take the J&S off I get more misfiring, the J&S has a higher dwell time so the coils charge longer, IRRC, J&S is awesome. The waste spark cylinder has no resistance against it, so its not going to heat it up or anything like that. Dialing out fuel will make it easier for the coils to fire so you can open the gap and pick up some indirect power.

 

Whoo Hooo 740's are here!

 

Got pics? Where did you get them?

 

e-bay no pics

 

I must not be looking in the right place...where do you find these injectors 515cc and now 740cc in a set of six?

 

set up a search for 555cc and 740cc, It too me about two months to find a set.

 

Okay, I don't visit eBay that consistently, so I just miss them.

Any chance you'll need to switch to a 90mm MAF soon?
http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting

Q45 vs. Z32:

 

Okay, I found a 740cc injector seller:
http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting

 

I was going to go with the Q45 maf but nobody ever told me how they hook it up. Should be somewhat like teh z32 hookup right? I was going to use it with my 840cc injectors.

The e-manage should be able to control this right?

 

I'd guess so, but nobody has tried. Someone like Mardi needs to try with the stock ECU and see if eManage can compensate.

I'm sure the eManage can, since it has multiple MAF options.

 

All you need is a wiring diagram of the Q MAF. I bet you could hook it up to the STOCK ecu, NO emanage, and I bet the car would idle fine.

And if JWT can use a cobra MAF, I am sure the Q maf would work, edit with emanage

 

hey just to let you guys know i found these on ebay for sale. There side feed so i cant use them. http://cgi.ebay.com/ebaymotors/ws/eB...922847282&rd=1

 

dam i just noticed there is only 4. dam my bad

 

Yes, I saw those..only 4.

4th gens. need to search for RB25DET and Z32 TT injectors.

 

5th gens use 350z and is there any onthers we can use?

 

Maybe, what size are you looking for and there are SEVERAL larger 350Z sets available right now.

 

4th gen's look for sr20det's also

 

Yes, but they're typically in sets of four, so rare to find someone willing to split up when used.

RBs/TTZ use six.

 

true....i got 8 for 120 from two sr20 swap guys that went 2 top feed injectors....lucky me i guess

 

JWT has fixed the cold start/run issue. I got my new chip tonight, its works great. I should have the 740's in this weekend. The EM should be able to compensate for them on top of my JWT ECU set up quite nicely.

So would having a 14psi wastegate spring give me better all around boost response than an electronic boost controller?

FWIW, JWT can do a 740cc program with a Lightning MAF. Apparently the Lightning maf can meter ~700hp of air. They can do a chip for me for $100, it will be the first on a Maxima, durrrr, but they have done it for a few Skylines. It would need some dyno runs to verifh AFR and timing. Their is also the 100oct program I can get to get better timing advance.

 

The EBC should give better response, because it will prevent any boost signal pressure from the WG until the last moment before it starts opening.

Ooooh....740cc and 700hp.Mardi.

So, this latest chip has much more timing advance. Cool. Now lets see what that J&S can really do.

 

what does 100oct mean?

Also I looked up the MAF and it is 90 mm, do you think the Q45 one will do the same thing since it is 90mm?

 

100oct...means 100-octane, ie much more advance was programmed at least.

 

Well how far do the 440's go? But i wouldn't mind getting 550's or something like that so i could always have room for more power. Where can yuo get them from?

 

Same timing on the new chip, I can start the car with the key now and not have cold start fuel dumping. JWT had to find the spot in the maxima ecu where the cold start/run info was.

 

can u use a safc insted jwt with the lightning maf?

 

when you say lightning maf... do you mean F-150 Lightning MAF or has something gone way over my head?

 

Then what is the "100oct program"?

Auugh...I remember your S2000 starter work around.

 

yep, a ford maf

 

Cool. Coil dwell will help you to a point. After that, only an ignition amp will help you.

 

Dudes

I am curious if there is any advantage of a MAF over a MAP sensor. I am trying to decide between MAF vs 3.5 Bar map. I already bought the map since it is already calibrated, but if there is an advantage to MAF, I might consider data logging for a MAF comparing it to a MAP. I also have calibrations for EVO, Mustang, Miata, Impreza WRX, Supra.

 

this thread just blew my mind :

 

since my TT maf is broke. there is a lightning maf on ebay for $120 and i've been contemplating buying that or using my stock one again and just save for the map setup. any suggestions from the clan?????