Quick question about timing advance. I know it's a very common mod for 5th gens to advance timing from 14-15 to 17, but what about us 4th gens with 3.5/3.0 ECU? What are our options? I assume this can't be done like with the 2k+ guys, right? Could we still run as much timing as them?

 

Jwt/ecu .

 

Don't forget Technosquare Inc....

they even cracked the rev limiter too.... so you can start pegging that tach needle to 7500

 

Technosquare are tuning ECU's for 95-96s now?

 

http://www.perfectpower.com/Products/smt7.asp

I've seen the older version SMT6 go on eBay for cheap once in awhile.

 

I heard emanage can do as good as smt7. That true?

With SAFC-II you can't adjust timing, right?

 

No...eManage can NOT advance timing although many claim it can, since the ignition harness only intercepts the output to the coils. I wish it could though.

SMT7 intercepts the crank/cam position sensor input to the ECU, so it can "lie" to a point and fool the ECU into advancing.

Apexi SAFC directly modifies MAF voltage to the ECU, which indirectly affects injector pulsewidth. That does affect timing somewhat, but not really what you want.

 

+5 degree timing advance using SMT-6 vs older dyno

These are two graphs of dyno pulls that I did. One is from a year ago and the other is from Feb using the SMT-6. I didn't adjust A/F at all, so don't go to much into these it's just a taste of things to come.

Before my car went under the knife for numerous mods and repairs I had the timing set to + (9~11) on the high end and let me tell you the car hauled a$$.

Im currently working on an circuit board application to make the SMT-6 operate trouble free in the 4th gens and possibly the 2k~2k1s. The 2k2 ECUs operate on a different premise and may need the SMT-7 to work.

 

How much you paid for the SMT6? Also why didn't you adjust A/F?

How much do you think someone would charge me to adjust timing? I imagine the dealer could do this to my 95?

 

Didn't have time to adjust A/F, the dyno was to prove that the SMT works and makes power with timing advance alone. However A/F tuning is just as easily accomplished with the SMT-6 module and that can be good for another 5~10 WHP.

Dealer would just laugh if you brought this in for tuning... Your better off doing it yourself on a dyno.

 

Care to explain what problems there are?

 

Crank line signal is weird, so RPM has spikes in the SMT.

If the 2k2 ECU's are like the Altima and 350z ECU's, they should use the SMT6 w/o any probs. J

 

Hard starts, unstable SMT-6 operation, ghost CELs, and general crappy running of the engine...

Most of those problems have been taken care of, but I need my car back to get rid of everything and do a nice dyno.

Hopefully if all goes as planned I will have a dyno with the 2k VI and advanced timing. Also on a side note the SMT controls the VI as well.

 

The Zs never ran right with the SMT-6, there was a thread on MY350Z.com about it... They made good power but never got the bugs out. Also that Altima put down good numbers but never made good track times, IIRC it ran slower consistantly after the SMT-6.

Trust me if I can't make it trouble free I won't bother talking about it anymore than I already have. Its at this point Im starting to feel confident about getting it right, I hope.

 

Does TS have the rev limiter worked out for 5 speeds?
Last I heard they only worked for some autos or something stupid and were too busy to get it properly working.

 

When do you think that circuit board will be available?

Also how much for an SMT6 w/all needed software?