Well go and get it done already, I would really like to see it working with dyno runs to back it up...

But until then Jclaw + 300ZX OBDI conversion =

 

TS changed my ignition timing advance when I made a special request.
The problem is you may not get what you requested.

My timing curve was 7-8 degrees more than what I specified.
see page 4 post 118.
http://forums.maxima.org/showthread.php?t=357882

It is great for midrange torque,
See page 5 post 141
http://forums.maxima.org/showthread.php?t=357882
but your engines may not like it with the southern climate and 91 octane fuel.

 

Wow~! Good info...if I ever get my 5gen TS ECU, I'll do the same timing log. I've seen/recorded 40-50+ degrees advance on my stock ECU, however that's w/Alex Peppers' OBD software so may not be comparable.

 

Dyno results are pretty amazing, seeing how much was gained from timing advance I am very interested in the TS ECU for my 01 now. I was originally just going to get their L-Spec ECU with 7500RPM rev limiter and no speed limiter, but I'm sold on a full unit if similar gains can be had on a DE-K. eng92 what timing did you specifiy you wanted when you ordered your TS ECU ? I never run anything lower than 93 octane in my gas tank, every possible bolt on but ECU and cams on my VQ.

 

True. I just bought a 1990 300zx ECU and I'll be getting it this week. I talked to the guy again and he says it'd be better to go on the dyno to get 100% of the setup. He's very busy right now with many projects (including his, S14 with an RB26).

 

For all those guys who want to run a hot ECU setup. I would like to add that the SMT-6/7 supports dual mapping, so you wouldn't have to switch ECUs in hotter weather or for track use. Ive set mine up so all I have to do is flick a switch and timing advance is back to stock values.

Eventially im going to write two different tuning maps for my car, one will be similar to a JWT ECU tune so it will run ok with 93 all summer long. The other will be a race fuel map for track use with the assitance of a couple gallons of +100 octane.

This is of course if I can push the timing advance and A/F that far to justify the use of race gas on a N/A motor.

 

Is that 40-50 degrees at WOT?

I get 45 at part throttle cruise. It drops into the mid 30s with moderate acceleration and then the map in the previously referenced thread at WOT.

The timing I requested is indicated by the dashed black curve on that timing vs rpm graph. I believe the data set is called "proposed timing"

My first TS ecu was only 2 degrees over stock and I really didn't feel any increase in pull even with the modified AFR. I have no dyno of the first ecu because it felt like they never changed anything. I sent the ecu back and they modified the timing map for no additional charge because the increased rev limiter I asked for never worked.

 

I would have to ask Larrio to plot out the timing on his scanner so I can see how much timing they've added to the stock ECU.

I will try to plot out my stock ECU timing this coming week on my Auterra. I am runing 17 deg timing- 2 deg advanced. I know at part throttle I recall seing as high at 50 deg of advance but I need to check WOT from 2500RPM to redline, I just need to find a good scretch of the road so I can test it in 2nd and 3rd gears to compare results under wide range of loads.

TS ECU hasn't shown much power vs stock (few ponies here n there) on a DE-K, but then again them might need more info to tweak out the most out of the ECU. My AF is around 13.4:1 under WOT all the way to redline. It has a very strong powerband but I am still looking for more, like all of us

Have a safe weekend, I got some hours behind the wheel to do now.

 

JWt said if i datalog some runs they can make a 3.0 ecu too use with the 3.5 swap......(that came straight from jim wolf himself)

 

Now that's interesting Tilley...

 

my A/F is 11.4-11.6 in 2nd and 11.6-11.8 in 3rd (5700-7100rpm). Zeitronix confirmed Maybe they advanced timing so much that they kept it rich on purpose, who knows.

which means that since i'm keeping up with most de-k's already in the midrange with less mods, I can a few more ponies to gain I have datalog with my scantool the timing vs. rpm if you'd like

ok, thats enough. PM me if you'd like.... don't like to hijack threads

 

Larry,

You need to get some 2500-7100rpm 3rd gear logs, if possible. I don't have an area I could safely log those, but will soon.

I'd like to see your TS timing curve vs. my stock curve.

 

wouldnt be easier and less painful to run a standalone like a GReddy E-manage.....with wide band 02.......u can do everything with standalone....including timing advance

 

standalone has its own problems, considering that you'd have to figure out a lot of things before hand.

greddy e-manage is a piggyback and not a standalone

 

still allows u too advance timing and set fuel maps

 

To the best of my knowledge Emanage has not been able to advance timing on a Maxima... See my above posts if you want a piggyback that's capable of advancing timing. (and yes I have dyno runs to back this up)

 

i believe only the SMT6 and 7 have advanced timing capability on our cars

 

where can an SMT7 be purchased at? I have looked around online a little bit but haven't really found anything.

 

i think ICE recommended ebay on post #31

otherwise you'll have to find a shop that is authorized to tune and sell, but there are none where I live.

www.perfectpower.com

 

As per 98SEBlackMax and from my own research I don't think the SMT-6 will really work. It can't read the cam sensor and interprets the crank sensor as noise after about 4000 rpms.

As for the SMT-7, we'll have to wait until the firmware is available. Any more word on that 98SEBlackMax (you said you were trying to meet a deadline)?

 

The SMT-6 does work on the 4th gen, to an extent. It cannot read the cam sensor, so it can only advance the crank signal. Where did you read that the crank sensor is interpreted as noise past 4000 rpm? Mine works till redline.

This weekend im gonna try to read and record the cam sensor signal to send to perfect power.

 

Is that on the stock unit without modification/addition?

My info came from Canspeed, the Canadian authorized dealer for Perfect Power. It's possible they may have been mistaken, as they didn't seem very familiar with Maximas. But you're running it on a 96 (IIRC) and I'm a 98, -didn't you mention there was a difference that prevented it from working on 97-99's? How's that board that you were developing coming.. or maybe you're focusing on the SMT-7 now?

 

Works on 97's too 95-99=same crank sensor.

 

Ya I know it's the same sensor, but he was saying there was a difference in the ECU that was giving problems.

Are you successfully running an SMT-6 on your car?