What Ecu For This Gtr

[Amaru]

Autronic SM2 is around $2000 - $2500, for what you want I wouldnt see a need to go the SM4. Has capabilities for launch control, antilag and the processing power and tuning resolution is pretty damn close to the Motec M800 and HKS Fcon V-Pro (the SM4 is alot closer, but also alot more money).

Im actually debating at the moment wether to pull the PFC out of mine and go an Autronic as I have seen some really impressive things done with them (also PFC is a static map, once its set it doesnt change, Autronic is dynamic so if its a hot day it will retard ignition timing to try stave off detonation etc).

[pnblight]

Autronic SM2 is around $2000 - $2500, for what you want I wouldnt see a need to go the SM4. Has capabilities for launch control, antilag and the processing power and tuning resolution is pretty damn close to the Motec M800 and HKS Fcon V-Pro (the SM4 is alot closer, but also alot more money).

Im actually debating at the moment wether to pull the PFC out of mine and go an Autronic as I have seen some really impressive things done with them (also PFC is a static map, once its set it doesnt change, Autronic is dynamic so if its a hot day it will retard ignition timing to try stave off detonation etc).

<{POST_SNAPBACK}>

the pfc does have correction factors for such days ie ign vs water temp and ign vs air temp which can be adjusted and will compensate for hot days

pete

[Amaru]

the pfc does have correction factors for such days ie ign vs water temp and ign vs air temp which can be adjusted and will compensate for hot days

pete

<{POST_SNAPBACK}>

Yeah it does, but not to the levels of some of the more advanced ECU's you can pick up for just a little bit extra (e.g. autronic)

Im in no way bagging the PFC, it is an awesome computer and I have been running one for 2 1/2 years now. I just personally think the Autronic is one step above the PFC (and, for that same reason, costs more as well)

[manage13]

MOTEC

There is no subsitute.

<{POST_SNAPBACK}>

I agree!

I have read on many occasions on this forum about AFM being better. But what I don’t understand is why are a lot of quick track/drag GTR's going AFM(less)? I thought it was a rule of thumb that says "if you are going high mount turbo's you should consider a management system that does not incorporate AFM's". (The performance company that stated this will remain nameless).

Personally, how can you top the Motec and Autronic systems for a GTR?

[pnblight]

Yeah it does, but not to the levels of some of the more advanced ECU's you can pick up for just a little bit extra (e.g. autronic)

Im in no way bagging the PFC, it is an awesome computer and I have been running one for 2 1/2 years now. I just personally think the Autronic is one step above the PFC (and, for that same reason, costs more as well)

<{POST_SNAPBACK}>

yeah its true ecu like motec and autronic have much more flexibly but i think one thing that is over looked in all the ecu concidered is the impacted the tuner has. Meaning it would matter what ecu you got if the tuner isnt up to the job and if you have an excellent tuner he can make almost any ecu gain great results.

The greatest thing with the pfc is alot of the hard work is already done and there is a big saving in dyno time using a plug and play ($100plus and hour) doesnt take long to burn up lot of cash. I know of a tuner who want atleast a full day on the dyno get to put the ignital tune on a motel rb26/30 drag car at a $150hr that starts to add up very quickly my advice was for the guy to use a pfc pro and build the combo for there.

[rob82]

Hell who really gives a shit what ecu is in a drag car. Comparing high horsepower drag cars to a street car is just ignorant this is why a microtech will do about the same job as a MOTEC minus all the logging. The beauty of the autronic is that once you map out the VE table all you have to do is change your commanded AFR ratio to wathever you desire. Change turbo's, boost who cares your not changing volumetric efficency. This is how most standard holden and ford speed density ecu work.

[GTRsean]

My car came with a HKS FCON v piggy back and this uses a denso map sensor and has no MAF sensors. It's a daily driver and I have pretty much no issue with driveability. Yes it's a bit vague between -2 to +2 PSI when accelerating but more air gets to the turbos in the end, and it also depends on what your tuner can do to make the map smoother, just my 2 cents.

[Sweetleaf]

Temp comp tables is PFCs biggest weakness but many tuners cant use these functions so in these applications PFCs basic setup may be better than poorly setup Motec etc.

[RNGTR]

Another vote for the PFC & Nismo AFM's here. Works a treat and looks standard.

[manage13]

Hell who really gives a shit what ecu is in a drag car.  Comparing high horsepower drag cars to a street car is just ignorant this is why a microtech will do about the same job as a MOTEC minus all the logging.  The beauty of the autronic is that once you map out the VE table all you have to do is change your commanded AFR ratio to wathever you desire.  Change turbo's, boost who cares your not changing volumetric efficency.  This is how most standard holden and ford speed density ecu work.

<{POST_SNAPBACK}>

I can't help but think this post is in reply to my one! So let’s clear this up!

My post was made in reference to the argument "about AFM being better than MAP's"(not arguing for or against it, just curious). My line of thinking was if AFM are so good why are alot high horsepower GTR opting not to use management systems that do not use AFM's. Just an observation aside to the original topic!

Believe it or not rob82 there are people on this forums that don't give a shit about streetability (seldom few) and are more geared towards track (as I am) and drag.

And as for the "Comparing high horsepower drag cars to a street car is just ignorant" comment. People who do not read posts properly and make statements such as this are the ignorant ones.

Edited December 2, 2005 by manage13

[N I B]

Many MAP sensored GTRs also run Single throttle bodys,Then you dont have the problem anymore plus a good gain in HP.