Its quite a while since I posted an update about my MR2, after I ran the new engine in for a bit, i then did the final tweaks and a few more mods.
just to recap, the new engine built
and in the car
now the new bits...
I bought a Greddy Emanage Ultimate and a Boomslang custom witing harness
and mounted it behind the passenger seat so it could be hooked upto a laptop easily
I then had the car mapped by Thor-Racing, who did a good job and made it a smoother car with a good idle, something I was lacking after the engine build
Then I managed to find a bargain on ebay that consisted of a full direct port nitrous kit, including a maximiser progressive controller
a few adjustments made, including the bottle stripped, sprayed blue
and a pressure switch and gauge was added, with the warning stickers and a quick release bottle mount
I then set about the wiring, it was a task in itself, but its now hard wired to the ecu and throttle body. I've arranged it so then it is turned on by a fancy switch near the gearstick, and then when the throttle pedal is around 85% depressed it activates the maximiser thats in the glove box, which then tells the nitrous and fuel pulsoids what is programmed and fires it into the engine. The Bottle heater is also activated by another switch, which warms the bottle to achieve optimum temperature, and once it hits this it cuts off
the magic button lol...
because its direct port, the injectors go direct into each manifold runner, instead of the entrance of the throttle body, this ensures a consistant and equal mixture to each cylinder. I started by drilling 2 holes in each runner and tapping them out
then the injectors with equal length nitrous and fuel lines:
and the injector lines hooked up onto the distribution block
I initially had the nitrous and fuel pulsoids in the boot, but i've since changed that arrangement to avoid any fuel drop out due to the length of the pipe work, so they are now in the engine bay and mounted to the strut brace
and the bottle is mounted in the boot
I managed to source a turbo engine lid in the correct colour too, so I put that on, one thing I did do is modify the rain tray underneath to allow maximum airflow to let the heat escape
a pic of the dash now showing extra goodies
On testing the nitrous I completed a idle/static test to make sure i was firing fuel and nitrous through the pulsoids ok, all seemed good, so with a 25 bhp shot, ( 25 fuel jet and 50 nitrous jet) I went for a drive... I started off in normal mode, hit the button, planted my foot and felt it kick in instantly, even for a 25shot it felt good.
So I had a bit of a play with the 25bhp, got home, checked everything ok which it was, and put a 50 shot on (50fuel, 100nos), it felt awesome, just pins you back in the seat and off it goes!
The only downside is that when I turned the nitrous off and planted my foot, it felt so slow in normal form , but I guess thats what having such a power increase does to your mind!
On the greddy emanage I have now created a map that will adjust the timing to retard 2 degrees, this means that I can now safely go for a 100+ shot, I havent tested this yet, but I will do next year when the car is back on the road
just to recap, the new engine built
and in the car
now the new bits...
I bought a Greddy Emanage Ultimate and a Boomslang custom witing harness
and mounted it behind the passenger seat so it could be hooked upto a laptop easily
I then had the car mapped by Thor-Racing, who did a good job and made it a smoother car with a good idle, something I was lacking after the engine build
Then I managed to find a bargain on ebay that consisted of a full direct port nitrous kit, including a maximiser progressive controller
a few adjustments made, including the bottle stripped, sprayed blue
and a pressure switch and gauge was added, with the warning stickers and a quick release bottle mount
I then set about the wiring, it was a task in itself, but its now hard wired to the ecu and throttle body. I've arranged it so then it is turned on by a fancy switch near the gearstick, and then when the throttle pedal is around 85% depressed it activates the maximiser thats in the glove box, which then tells the nitrous and fuel pulsoids what is programmed and fires it into the engine. The Bottle heater is also activated by another switch, which warms the bottle to achieve optimum temperature, and once it hits this it cuts off
the magic button lol...
because its direct port, the injectors go direct into each manifold runner, instead of the entrance of the throttle body, this ensures a consistant and equal mixture to each cylinder. I started by drilling 2 holes in each runner and tapping them out
then the injectors with equal length nitrous and fuel lines:
and the injector lines hooked up onto the distribution block
I initially had the nitrous and fuel pulsoids in the boot, but i've since changed that arrangement to avoid any fuel drop out due to the length of the pipe work, so they are now in the engine bay and mounted to the strut brace
and the bottle is mounted in the boot
I managed to source a turbo engine lid in the correct colour too, so I put that on, one thing I did do is modify the rain tray underneath to allow maximum airflow to let the heat escape
a pic of the dash now showing extra goodies
On testing the nitrous I completed a idle/static test to make sure i was firing fuel and nitrous through the pulsoids ok, all seemed good, so with a 25 bhp shot, ( 25 fuel jet and 50 nitrous jet) I went for a drive... I started off in normal mode, hit the button, planted my foot and felt it kick in instantly, even for a 25shot it felt good.
So I had a bit of a play with the 25bhp, got home, checked everything ok which it was, and put a 50 shot on (50fuel, 100nos), it felt awesome, just pins you back in the seat and off it goes!
The only downside is that when I turned the nitrous off and planted my foot, it felt so slow in normal form , but I guess thats what having such a power increase does to your mind!
On the greddy emanage I have now created a map that will adjust the timing to retard 2 degrees, this means that I can now safely go for a 100+ shot, I havent tested this yet, but I will do next year when the car is back on the road
