- Location
- NSW
- First Name
- Steve
- Drive
- 2010 nt did pajero tow car / 2000 6spd gc8 wrx tarmac rally car / 2000 Manual Subaru Outback 2.5 just a car
Hi all,
I have been slowly doing some mods to my Legnum and have been measuring the results at each step.... It seems to be something that hasn't really been done so I figured it may be helpful/interesting to all so here goes.
I bought ET's Legnum at the beginning of the year which already had some goodies on it such as a custom exhaust with 2.5" front pipes, a 4"Cat and 3" the rest of the way. It had a straight through rear muffler which annoyed me on the highway so it got changed to a triple flow. I flanged it so I could put the straight through back on for track days etc but in reality it will probably gather dust until I throw it out. It also had a Ralliart panel filter and a TurboXS high performance MBC. The down side of this is that these mods are my baseline.
The day I got it, I had a run against a mates stock EVOX MR and with both of us holding 3rd gear at 60km/h, counting down, then WOT through the rest of 3rd. After a half a car jump by the leggie, we stayed neck and neck with each car moving forward or back no more than a metre from one another.
Unfortunately I never did better than that against him as he got an additional 53kW courtesy of TMR the next day.
So after some cosmetic stuff and fluid changes etc it went onto the dyno and achieved about 185kW and a peak torque of 365Nm at the hubs. ET had won a dyno shootout day and run a 13.7 in this state. So it wasn't bad.
Playing with the MBC on the day I got 190kW but it was a lumpy messy curve and on the way home it kept hitting the boost cut, so ET had it about the best it could be with 185.
The next day the MBC came out and an Eboost 2 controller went in, followed by a flash of the ECU.
With the boost cut lifted out of the way it went back on the dyno a 2nd time but it was running lean as below 4500RPM. No matter how much I enriched the fuel map below 4500RPM it did nothing. I could at get 190kW reliably now but the fuel issues were so bad I put a stock map back in until it was sorted. I was suspicious that something other than the fuel map in the tune was affecting the fuel map scales so I droppped a stock map back in and with the E-boost 2 controlling boost better I got 190kW without hitting the cut.
It went into the panel shop for a while getting a freshen up and while it was there I realised the fuel maps were around the wrong way. Swapping the axis with a bit of the code (same as the ignition maps are) fixed the issue. A week or two later Daniel realised the same thing, if only it had been a month before!
Back from the panel shop in went another flash and the maps worked fine. I then spent the next while logging and logging and logging and tuning the ECU trying to get as much timing advance in everywhere to save fuel in the low load range and give more power without det at high loads. The boost controller was also remapped as the tuning seemed to affect it's setpoints also. Once I was happy with that state of tune I saved that ROM and then put in an EVO X BOV. This allowed a bit more advancxe at high loads so I tuned it again to suit that.
I also fitted a cold air intake to the bottom of the factory airbox to supplement the std snorkel. I also got a plug for the intake so I could do comparison runs for it's effect. There was no gain tuning wise with the CAI but the air temp at the MAF sits about 2-3 degrees closer to ambient than without it, so it does help temperature wise.
So after yesterday successfully dragging off a modded Stagea while loaded up on the way back from the snow, today it went back on the dyno and these were the results.
Mods: EVO X BOV, panel filter, cold air intake (additional pipe cut into the bottom of the std airbox), full exhaust, eboost 2, flashed ECU
201kW at the hubs, 402Nm Torque (referenced to engine speed) and significant gains beween these peaks through the rest of the range. (Without entering into arguments about how valid this is as I know the drivetrains are different) using EVO losses this equates to about 255kW (340HP) and 505Nm of Torque at the Flywheel. Not bad. I think this is the limit without changing the intercooler (with the exception of using NOS and I guess a water spray/injection could help a bit too).
With the stock BOV and timing remapped to suit, 198kW and 395Nm peaks but about 10kW less almost everywhere in between.
On the dyno the CAI had no effect.
Next up it gets a 600 x 300 intercooler, maybe a water spray, a retune and another dyno run.
After that I'll be making up custom pipework, another retune and dyno run.
I reckon that my mate in the EVO is due for another run.... Sure it's 255kW vs 270kW but I have some weight and torque benefits....
I have been slowly doing some mods to my Legnum and have been measuring the results at each step.... It seems to be something that hasn't really been done so I figured it may be helpful/interesting to all so here goes.
I bought ET's Legnum at the beginning of the year which already had some goodies on it such as a custom exhaust with 2.5" front pipes, a 4"Cat and 3" the rest of the way. It had a straight through rear muffler which annoyed me on the highway so it got changed to a triple flow. I flanged it so I could put the straight through back on for track days etc but in reality it will probably gather dust until I throw it out. It also had a Ralliart panel filter and a TurboXS high performance MBC. The down side of this is that these mods are my baseline.
The day I got it, I had a run against a mates stock EVOX MR and with both of us holding 3rd gear at 60km/h, counting down, then WOT through the rest of 3rd. After a half a car jump by the leggie, we stayed neck and neck with each car moving forward or back no more than a metre from one another.
Unfortunately I never did better than that against him as he got an additional 53kW courtesy of TMR the next day.
So after some cosmetic stuff and fluid changes etc it went onto the dyno and achieved about 185kW and a peak torque of 365Nm at the hubs. ET had won a dyno shootout day and run a 13.7 in this state. So it wasn't bad.
Playing with the MBC on the day I got 190kW but it was a lumpy messy curve and on the way home it kept hitting the boost cut, so ET had it about the best it could be with 185.
The next day the MBC came out and an Eboost 2 controller went in, followed by a flash of the ECU.
With the boost cut lifted out of the way it went back on the dyno a 2nd time but it was running lean as below 4500RPM. No matter how much I enriched the fuel map below 4500RPM it did nothing. I could at get 190kW reliably now but the fuel issues were so bad I put a stock map back in until it was sorted. I was suspicious that something other than the fuel map in the tune was affecting the fuel map scales so I droppped a stock map back in and with the E-boost 2 controlling boost better I got 190kW without hitting the cut.
It went into the panel shop for a while getting a freshen up and while it was there I realised the fuel maps were around the wrong way. Swapping the axis with a bit of the code (same as the ignition maps are) fixed the issue. A week or two later Daniel realised the same thing, if only it had been a month before!
Back from the panel shop in went another flash and the maps worked fine. I then spent the next while logging and logging and logging and tuning the ECU trying to get as much timing advance in everywhere to save fuel in the low load range and give more power without det at high loads. The boost controller was also remapped as the tuning seemed to affect it's setpoints also. Once I was happy with that state of tune I saved that ROM and then put in an EVO X BOV. This allowed a bit more advancxe at high loads so I tuned it again to suit that.
I also fitted a cold air intake to the bottom of the factory airbox to supplement the std snorkel. I also got a plug for the intake so I could do comparison runs for it's effect. There was no gain tuning wise with the CAI but the air temp at the MAF sits about 2-3 degrees closer to ambient than without it, so it does help temperature wise.
So after yesterday successfully dragging off a modded Stagea while loaded up on the way back from the snow, today it went back on the dyno and these were the results.
Mods: EVO X BOV, panel filter, cold air intake (additional pipe cut into the bottom of the std airbox), full exhaust, eboost 2, flashed ECU
201kW at the hubs, 402Nm Torque (referenced to engine speed) and significant gains beween these peaks through the rest of the range. (Without entering into arguments about how valid this is as I know the drivetrains are different) using EVO losses this equates to about 255kW (340HP) and 505Nm of Torque at the Flywheel. Not bad. I think this is the limit without changing the intercooler (with the exception of using NOS and I guess a water spray/injection could help a bit too).
With the stock BOV and timing remapped to suit, 198kW and 395Nm peaks but about 10kW less almost everywhere in between.
On the dyno the CAI had no effect.
Next up it gets a 600 x 300 intercooler, maybe a water spray, a retune and another dyno run.
After that I'll be making up custom pipework, another retune and dyno run.
I reckon that my mate in the EVO is due for another run.... Sure it's 255kW vs 270kW but I have some weight and torque benefits....
