Vipec + R34gtr?

[NIS.26L]

zebra im not looking at a new ecu to make more power, 340klw at the wheels is plenty for what im doing with the car im just after better drivabilty i feel AFMs are just not consistant at giving accurate readings for the ECU which results in the car feeling sluggish at times,and yes they are new items.

choyda did yo have a powerFC before u got the vipec?

keep us updated on how your car turns out matt

cheers for the feed back guys!

[zebra]

zebra im not looking at a new ecu to make more power, 340klw at the wheels is plenty for what im doing with the car im just after better drivabilty i feel AFMs are just not consistant at giving accurate readings for the ECU which results in the car feeling sluggish at times,and yes they are new items.

choyda did yo have a powerFC before u got the vipec?

keep us updated on how your car turns out matt

cheers for the feed back guys!

Fair enough, Although many people say they loose drivability going MAP based with GTRs, they are bit tempremental in regards to where the MAP sensor is plummed into.

[choyda]

zebra im not looking at a new ecu to make more power, 340klw at the wheels is plenty for what im doing with the car im just after better drivabilty i feel AFMs are just not consistant at giving accurate readings for the ECU which results in the car feeling sluggish at times,and yes they are new items.

choyda did yo have a powerFC before u got the vipec?

keep us updated on how your car turns out matt

cheers for the feed back guys!

Hi,

I had the stock ECU and changed to Vipec to suit my mods. I did have a Power FC (no d-jetro) on my GTT. Certainly with the vi-pec the car drives like its standard (smoothness wise), seems to cope with different temps, cold starts, humid days much nicer than my Power FC did.

The tune also gives me surprisingly good fuel economy for a GTR anyway. I didn't have great economy in by GTT... could have been the tune though.

Damien

[NIS.26L]

Damien that sounds like exactly what im after out of a new ECU

cheers for the feed back mate

george

[zebra]

It's really all to do with the tune rather than what ECu the car has,

You could have a Motec M880 with the works but a bad tune and the car will feel like a POS.

[bigmikespec]

Fair enough, Although many people say they loose drivability going MAP based with GTRs, they are bit tempremental in regards to where the MAP sensor is plummed into.

Not using the TPS as a correction with a MAP sesnor.

[Guilt-Toy]

Thats right. the tuner will run 2 fuel maps, one Map vs RPM and one TPS vs RPM.

Finished product is hard to tell difference from a stock ecu.

Not using the TPS as a correction with a MAP sesnor.

[NIS.26L]

Guilt-toy is the v88 a plugin? if not do i need the v88 or will the v44 be fine?

[Swiper the Fox]

Guilt-toy is the v88 a plugin? if not do i need the v88 or will the v44 be fine?

V44 will be fine for a road car...same as we run in our street/circuit gtr with over 450awkw.

The only advantage of running a V88 is its direct fire ignition and the fact you have heaps of inputs and outputs for control/sensors etc.

[Roy]

im doing with the car im just after better drivabilty i feel AFMs are just not consistant at giving accurate readings for the ECU which results in the car feeling sluggish at times,and yes they are new items.

Interesting, I need to go for a drive in a Vipec car that has had 1-3 hours of tuning. Be it Motec, Autronic, Microtech or Wolf (Never been in a car with a ViPec) the MAP sensed and tuned cars traditionally seemed to always require more dyno and road time to get the tune to the point where you got the drivability of the AFM Pfc and the fuel economy.

I do believe about 75% of it is in the tune and 25% of it the ECU. So if the ViPec and some of the softeware allows it to be quickly tuned and accurately tuned then that is a big bonus.

[BoostedBarge]

I have a Vipec V44 plug-in on my Stagea 260RS (R33 GTR engine). I also had the problem with the aircon clutch relay, but it's easy to fix. I believe the next runs of ECUs will have a fix for this anyway (if it's not out already). Either way, it's no biggy. Yeah, you don't have to wire in a wideband O2 sensor, but there are heaps of features you can access when you do. I just picked an Innovate one for $200, so will be wiring that in soon to trim my tune a bit more. I went from stock ECU to Vipec and it really does drive as smooth as stock. Mine has been tuned as mentioned above. 2 maps, 1 with TPS vs RPM and the other MAP vs RPM.