matchtheclown
Time p33nt
I spent sunday with David aka merlin tuning my legnum.
I had a 7203 ecu in my 99 type-s... which seemed to have a 7202 rom in it when we started, modding the 7202 rom wouldn't work, so merlin uploaded a 7203 one and we were in business.
With the new map and stock boost, the car felt pretty good. It seemed more lively in the top part of the rev range. We did a fair bit of street tuning, topping out in 1st and 2nd and then tuning out the knocks.
Then we put my manual boost controller back in. We installed it in a bleed off layout instead of the more standard restricitng method. My MBC (which is just a straight pressure valve) didn't flow enough to work this way. We added a bunch of restricting beads and we got it boosting up to about 17psi. But were hitting fuel cut in 2nd and 3rd. Merlin had a couple of variables to try to move fuel cut. After a significant amount of trial and error we seemed to have nailed it down.
In 3rd I get boost spiking up to 1.3bar (19psi) and no fuel cut. We were also getting minimal knock. So the tune looks quite safe from what merlin was saying.
The car is very well behaved in traffic. I will watch fuel economy on the next tank... this one is quickly being boosted into oblivion. I remember the car feeling fairly flat above 4k previous to the tune. Now it roars through 4-6+ when you have the foot down, it's pretty scary actually! Reminds me of my first time on a liter bike.
A bunch of other things like top speed and rev limit were tweaked. I couldn't tell you the full list.
Suffice to say, the car feels totally different. Loads more poweful. It will be interesting getting it on a dyno.
merlin truly is an ecu wizard and it was very enlightening to spend the day with him. Well worth it for anyone else in sydney.
/end
I had a 7203 ecu in my 99 type-s... which seemed to have a 7202 rom in it when we started, modding the 7202 rom wouldn't work, so merlin uploaded a 7203 one and we were in business.
With the new map and stock boost, the car felt pretty good. It seemed more lively in the top part of the rev range. We did a fair bit of street tuning, topping out in 1st and 2nd and then tuning out the knocks.
Then we put my manual boost controller back in. We installed it in a bleed off layout instead of the more standard restricitng method. My MBC (which is just a straight pressure valve) didn't flow enough to work this way. We added a bunch of restricting beads and we got it boosting up to about 17psi. But were hitting fuel cut in 2nd and 3rd. Merlin had a couple of variables to try to move fuel cut. After a significant amount of trial and error we seemed to have nailed it down.
In 3rd I get boost spiking up to 1.3bar (19psi) and no fuel cut. We were also getting minimal knock. So the tune looks quite safe from what merlin was saying.
The car is very well behaved in traffic. I will watch fuel economy on the next tank... this one is quickly being boosted into oblivion. I remember the car feeling fairly flat above 4k previous to the tune. Now it roars through 4-6+ when you have the foot down, it's pretty scary actually! Reminds me of my first time on a liter bike.
A bunch of other things like top speed and rev limit were tweaked. I couldn't tell you the full list.
Suffice to say, the car feels totally different. Loads more poweful. It will be interesting getting it on a dyno.
merlin truly is an ecu wizard and it was very enlightening to spend the day with him. Well worth it for anyone else in sydney.
/end
