How is the driveability on partial throttle? Any modifications you had before the ECU+tune?

Adi

Car was stock cept for the 3inch exhaust and replacemet box filter. Unfortunately solenoid was maxed out at 99 per cent so boost was around 1 bar partially and below 1 bar most of the WOT range.

As mentioned driveability is awesome, but I will leave Cam to vouch for that.

Below is the initial power run of 150hp vs 177hp with Vi-pec @less than 1bar of boost. You can see clearly how the Torque and power curves have smoothed out even at WOT.
[IMG]http://img59.imageshack.us/img59/5454/dsc02569to.jpg[/IMG]

Vi-pec install and tune on R33 GTS-T coming up.

Hey Mao, do you know when the Vipec ecu for subaru MY09+ is coming out?

Hi Ken, how are you?

No date of release at the moment on the MY09+ Vi-pec as yet.

yeah i'm good thanks, yourself?

Ah i see i guess i'll have to keep waiting =P

All good Ken, thanks for asking.

[QUOTE=iceken;653477]yeah i'm good thanks, yourself?

Ah i see i guess i'll have to keep waiting =P[/QUOTE]

We sold a Vi-pec ecu for a R33 GTS-t to a customer recently, which he had brought to an unauthorised Vi-pec dealer. This resulted in a blown ecu board as they wired the
12V source directly to the board to run an external air temp sensor. Also they did understand the difference between a sensor ground and actual ground. Vi-pec does not warrant it's products installed and tuned at workshops with no in-house certification. Always ask for one.

Below is the R33 GTS-T Vipec tune.
[IMG]http://img546.imageshack.us/img546/3341/dsc02647sp.jpg[/IMG]

Stock Nissan ecu vs Vi-pec ecu:
[IMG]http://img406.imageshack.us/img406/6946/dsc02649s.jpg[/IMG]

Dynochart (Note: only mild tune done as it is still running on Nissan's factory ceramic turbine which is not rated capable over 14.7 PSi. Car was set at less than 0.95bar of boost with accurate AFR and minimum timing set as can be seen in torque curve. Customer is due back for a turbine change and fine tune when we get back from holidays):
[IMG]http://img444.imageshack.us/img444/8105/dsc02646f.jpg[/IMG]

Just an update on Cameron's MY99/00 GC8.

A few posts ago, his rex came in for a Vi-pec which made power from 150hp to 177hp SAE corrected ATW.

He just brought in a VF28 to swap with the tiny TD04 and made an instant 32hp. Solenoid was also required to be upgraded. Unfortunately his STi top-mount is still waiting for the silicon Y-pipe, otherwise better cooling would have given more hp.

Below is the Dynoplot of TD04L vs VF28 tuned with Vi-pec:
[IMG]http://img35.imageshack.us/img35/8703/dsc03477dkr.jpg[/IMG]

Below is the Dynoplot of VF28 upgraded power tuned on Vi-pec with VF28 vs stock GC8 with TBE.
[IMG]http://img23.imageshack.us/img23/6083/dsc03476vf.jpg[/IMG]

I Like This.

Like!!

Gav's STi on the dyno today. The Blouche turbo was a good pump, but not quite perfect. PM sent Gav.

Below are the results of the tune:
[IMG]http://img35.imageshack.us/img35/1931/dsc03587wn.jpg[/IMG]

Boost was relatively stable, with changes at the top line of +/- 0.015bar from the Dynapack's boost logs, which is deemed safe on this tune.
[IMG]http://img440.imageshack.us/img440/2668/dsc03586p.jpg[/IMG]

fuuuuu me like very much

We used Vi-pec's auxiallary outputs to mate with Gavin's STi intercooler spray kit. The Vi-pec is so versatile that I can programme your wipers to turn on at 4000rpm if you wanted.

We programmed the Vipec to have the intercooler spray come on at 1.3bar and turn off at 0.8bar on boost decline.

Below are some pics. More pics tmr.
[IMG]http://img6.imageshack.us/img6/8985/dsc03759tm.jpg[/IMG]
[IMG]http://img51.imageshack.us/img51/5619/dsc03760n.jpg[/IMG]

Thank you P.WRX for your support of local Vi-pec products.

Below is a retune on a HKS GT2835 charged STi:
[IMG]http://img831.imageshack.us/img831/4228/dsc03844d.jpg[/IMG]

Also, I have included the conditions of our run on the Dynapack 5000:
[IMG]http://img43.imageshack.us/img43/5507/dsc03787gh.jpg[/IMG]

Another Vi-pec job to show how versatile this unit is. We have configured a second map as a default to work with the additional water injection nozzles he had installed into the manifold, while the other map is tuned to kick in when the injection runs dry.

This STi runs on a TD0520G. Vehicle came in with 265hp and left with 329hp and 384.5Nm of Torque. We did this with proper AFRs and timing, with only 0.1bar of boost more than the previous tune.

[IMG]http://img856.imageshack.us/img856/3096/dsc03836sv.jpg[/IMG]
[IMG]http://img600.imageshack.us/img600/8349/dsc03837ya.jpg[/IMG]
[IMG]http://img10.imageshack.us/img10/9940/dsc03838z.jpg[/IMG]
[IMG]http://img20.imageshack.us/img20/8485/dsc03839b.jpg[/IMG]
[IMG]http://img32.imageshack.us/img32/2613/dsc03841z.jpg[/IMG]

Just retuned a Vi-pec on a MY95 GC8 WRX with a Delco Boost Solenoid. The Delco Valve allowed boost to hold longer up top, producing more hp. Vehicle was factory except for the Intake and Exhaust.

[IMG]http://img839.imageshack.us/img839/5903/dsc04050rz.jpg[/IMG]

Overall Gains since the first tune. Before 152hp, now 216hp:
[IMG]http://img269.imageshack.us/img269/7593/dsc04051s.jpg[/IMG]


.

Another Vi-pec installed today on a MY02 STi. Mods on this vehicle were just CAI and TBE. Vehicle already had a flash done elsewhere on it's stock ecu with 245hp. Vi-pec brought the power up to 282hp with more boost and ignition control.

[IMG]http://img18.imageshack.us/img18/8690/dsc04082w.jpg[/IMG]

Thats sad... A Stock 95 WRX besting my 99 Grr..

TD05 on the stock MY95

Yup, TD05

Lol. Weather was pretty cold last night Cam.

[QUOTE=SyncSubaru;685606]Thats sad... A Stock 95 WRX besting my 99 Grr..[/QUOTE]

Am i correct to assume the 99-00 ECU model is the same for 205's and 207's ?

For the Vi-pec it is the same as there are dip switches built on the board to change the settings.


[QUOTE=disc0-dan;685702]Am i correct to assume the 99-00 ECU model is the same for 205's and 207's ?[/QUOTE]

[QUOTE=disc0-dan;685702]Am i correct to assume the 99-00 ECU model is the same for 205's and 207's ?[/QUOTE]

Ecu type isn't linked to engine type
The my99-00 wrx or STi has the same pin outs on the ecu despite the engines being ej205 and ej207 respectively

:thumbsup: Spot on.

[QUOTE=pmh;685720]Ecu type isn't linked to engine type
The my99-00 wrx or STi has the same pin outs on the ecu despite the engines being ej205 and ej207 respectively[/QUOTE]

Another Vi-pec ecu installed today. GD 2.0 STi had the 3" TBE as the only mod and has gone for the ecu as one of the first mods. Wise move.

Boost was set steady between 1.3-1.4bar with minimum ignition advance. Power increased to 262hp from 211hp while overall torque improved throughout the rev range.
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-9.jpg[/IMG]

Some messages deleted. We have reached a stage where PMs will be preferred if you want to discuss OST vs a full ecu.

Finally had the chance to work on Cameron's MY00 WRX today and it was a worthy wait.
Cam supplied the fuel pump and STi top mount and those were installed, plus a retune on the Vi-pec.

Silicon Y-piece we supplied for the 04 STi intercooler conversion on the MY00 GC8:
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-11.jpg[/IMG]

Results were well deserved:
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-12.jpg[/IMG]
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-10.jpg[/IMG]

And now we play the Waiting game..... :)

Nice result Cam. Is that on TD04?

Sent from my GT-I9100 using Tapatalk 2

VF28 Mate ;)

Retuned Daniel's GD WRX today. AVO Turbine was replaced with a TD05 plus larger injectors installed.
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-141.jpg[/IMG]

AVO Turbine removed and new TD05 installed:
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-139.jpg[/IMG]
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-140.jpg[/IMG]

Vehicle gained another 20hp and 30Nm of Torque at WOT and improved all over the rev range compared to the earlier tune as the turbine was smaller. Vehicle hit 285 smoothly but 2deg of timing had to be removed up top as the motor was pinging. That's explains the flat at the top.
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-142.jpg[/IMG]

While I am here, I have to emphasize that Evolution R always targets driveability in our tunes, even in our flash tunes.

A lot of questions have been asked about 'the area under the graph', and the first thing that comes to our minds is' how the f to explain this' as there are so many ways to do it.

However, I take this opportunity to show you Vi-pec's 3D tuning ability to do this. EDIT: BTW this is in real time.

Below is an example of how Vi-pec achieves this.
[IMG]http://i1111.photobucket.com/albums/h468/maoevor/Untitled-143.jpg[/IMG]

I'm sure you are aware Mao, but area under the curve has nothing to do with ignition maps.

area under the curve is simple, the more area under the lines, the more torque and horse power is available accross the rev-range.

aiming for just a peak figure (a dyno-day tune) will usually have less 'area under the curve', vs a high performance more reliable tune.

also agreed, fuel and ignition maps do not correlate against 'area under the curve'.

as boost increases, ignition decreases.

also with motec i2 pro, you can use a derivative function to calculate the applicable area under the curve on your logs too.

remember its a tuning tool, not a bragging statistic.

Other than boost, if fuel and ignition, has nothing to do with the derivatives for driveability or 'area under the curve', then pass me a formula and we will just use a calculator.

Our tunes are not aimed at achieving max hp as our customers already know by now. Safety and driveabilty comes first. We spend more time getting driveability than WOT -- bragging statistics are not part of our agenda.

[QUOTE=Kato;700764]I'm sure you are aware Mao, but area under the curve has nothing to do with ignition maps.[/QUOTE]

[QUOTE=tuna;700772]area under the curve is simple, the more area under the lines, the more torque and horse power is available accross the rev-range.

aiming for just a peak figure (a dyno-day tune) will usually have less 'area under the curve', vs a high performance more reliable tune.

also agreed, fuel and ignition maps do not correlate against 'area under the curve'.

as boost increases, ignition decreases.

also with motec i2 pro, you can use a derivative function to calculate the applicable area under the curve on your logs too.

remember its a tuning tool, not a bragging statistic.[/QUOTE]

Just pointing out that "area under the curve" refers to the area under your torque or power line on a dyno print out. Not the shape of an ignition map etc.

It's quite simple, look at the dyno curve plotted and see the area under that curve. People want to maximise that and not have a big peaky triangle shaped curve. Not saying that EvoR does that, just talking in general of what people mean by this.

If I'm looking at a dyno plot, I only want to see massive area under the torque curve. That is what makes a great car.

Ok Kato. Just to point out the differences in views here.

That is just a WOT curve. Different scenarios and simulations on the dyno and street tune can differentiate from this curve, for example under different spool conditions. So I could have area above this curve as well. You might see a triangle at WOT -- EDIT: which is not suitable for WOT drag use. On track use, tuning has to account for what throttle and rev range you will be using, while trying to maximise the torque in that area you will be using most.

Agreed: Yes in general refering to area under the curve is driveability. The Dynapack is just a tool that we use to tune the car, after which on road tuning proceeds for driveability -- and yes, lap top is plugged in and tune is further tweaked while driving on road.

a WOT curve should still be relatively smooth though,

in fact it should have the least amount of fluctuations, since WOT is the easiest to tune.