"He he, looking for more power eh?"
There's two ways of doing
this.
- Buy an upgraded APC from a dealer.
- Modify the APC yourself.
But before you do anything to rise the power of the engine, You must make
sure that the brakes and the chassie is upgraded enough to handle the power!
It's not just your life! There are other people and animals out there too.
Advanced driving shall take place on a track! Not on public roads!
BTW, have you read the disclaimer? It's under About->links
TOC
1. Buy the stuff
2. Mod of the old APC box (grey)
3. Mod of the old APC box (black)
4. Mod of the new APC box (Black or Red)
5. What do the mods do?
6. Other boxes
Buy the stuff
I'm was too lazy to modify my own APC, and when I opened it. I've noticed that
someone with minuscule knowledge of electronics, had done something to the APC.
So I sent the APC to Speedparts
for a check-up and an upgrade. Worth every cent.
But then I wanted even more power so I modded it according to the instructions
below. Now the Aero really goes...
To install. Just plug it in. Start the tuning process.
To modify the APC (Older version
APC, board version 1, 14 pin, grey casing)
This is only for hard-core people, and I don't recommend this. I've got a
professional altered APC.
I TAKE NO RESPONSIBILITIES AT ALL...
version 1 (gives boost levels from 0.9 bar to 1.4 bar)
1. Open the APC
2. Open the circuit board.
3. Locate the R42 resistor
4. Exchange the resistor for a wire.
5. Locate the R40 resistor (600 ohm).
6. Exchange the resistor for a 1300 ohm resistor.
7. Don't touch
anything else.
8. Put it all together
OR
version 2 (gives boost levels from 0.5 bar to 1.4 bar)
1. Open the APC
2. Open the circuit board.
3. Locate the R42 resistor
4. Exchange the resistor for a wire.
5. Locate the F-pot (500 ohm).
6. Exchange the F-pot for a 1000 ohm pot.
7. Locate the R40 resistor (600 ohm).
8. Exchange the resistor for a 900 ohm resistor.
9. Don't touch
anything else.
10. Put it all together
To modify the APC (Older version
APC, board version 2, 14 pin, black casing)
This is only for hard-core people, and I don't recommend this. I've got a
professional altered APC.
I TAKE NO RESPONSIBILITIES AT ALL...
version 1 (gives boost levels from 0.9 bar to 1.4 bar)
1. Open the APC
2. Open the circuit board.
3. Locate the R42 resistor
4. Exchange the resistor for a wire.
5. Locate the R40 resistor.
6. Exchange the resistor for a 1300 ohm resistor.
7. Don't touch
anything else.
8. Put it all together
OR
version 2 (gives boost levels from 0.5 bar to 1.4 bar)
1. Open the APC
2. Open the circuit board.
3. Locate the R42 resistor
4. Exchange the resistor for a wire.
5. Locate the F-pot (500 ohm).
6. Exchange the F-pot for a 1000 ohm pot.
7. Don't touch
anything else.
8. Put it all together
To modify the APC
(Newer version APC, 25 pin, black and red casing)
This is only for hard-core people, and I don't recommend this. I've got a
professional altered APC.
I TAKE NO RESPONSIBILITIES AT ALL...
version 1 (gives boost levels from 0.9 bar to 1.5 bar)
1. Open the APC
2. Open the circuit board.
3. Locate the R42 resistor
4. Exchange the resistor for a wire.
5. <Option: exchange the R138 to 40 kohm resistor, not really needed. More
info further down the page>
6. Locate the R40 resistor (909 ohm).
7. Exchange the resistor for a 1300 ohm resistor.
8. Don't touch
anything else.
9. Put it all together
OR
version 2 (gives boost levels from 0.5 bar to 1.5 bar)
1. Open the APC
2. Open the circuit board.
3. Locate the R42 resistor
4. Exchange the resistor for a wire.
5. <Option: exchange the R138 to
40 kohm resistor, not really needed. More info further down the page>
6. Locate the F-pot (500 ohm).
7. Exchange the F-pot for a 1000 ohm pot.
8. Don't touch
anything else.
9. Put it all together
Just plug it in. Start
the tuning process.
What do the mods
do?
- R42 resistor:
Is used when the APC is reducing the boost at high RPM. Reducing the resistance
will make the APC hold the boost at High RPM.
- R40 resistor:
Is used in conjunction with the F-pot to set the maximum boost.
- F-pot 1000 Ohm version
Is used in conjunction with the R40 resistor to set the maximum boost.
- R138 resistor (only newer APC boxes, 25 pin):
(SWAG!) is used in conjunction with R42 for the boost control at higher RPM.
When the R42 is bypassed the R138 should be exchange to 40K ohm to get a
"nice" circuit.
Doing this mod is not really needed, but to get a "pure" circuit and
if you feel to be professional you should do it.
Other boxes
Below is a list of
the different APC boxes
(Data from Anders Olsson)
| Box no. | Car | tranny | YM. | Pinout | Case | R42 [k] | R138 | P [k] | F | K [k] ** | R40 |
| 9353657 | 900T8/145hp | Man. | 1982 | 14 Pin | 3.83 | - | 28.5 | 376 | 21.4/26.8 | 600 | |
| 7524119 | 900T8/155hp | Man. | 1986 | 25 Pin | 3.83 | 36.5 | 16.4 | 117 | 30.5/18.7 | 909 | |
| 7524119 | 900T8/155hp | Man. | 1986 | 25 Pin | 3.83 | 36.5 | .. | .. | 31.5/13.4 | 909 | |
| 7524119 | 900T8/155hp | Man. | 1987 | 25 Pin | 3.81 | 36.5 | 15.8 | 115 | 27.4/23 | 909 | |
| 7524119 | 900T8/155hp | .. | 1986-89 | 25 Pin | 3.83 | 36.5 | .. | .. | 28.2/21.0 | 909 | |
| 7567704 | 900T8/140hp | Man. | 1986-89 | 25 Pin | 4.72 | 28.1 | 15.3 | 17 | .. | .. | |
| 7521826 | 900T16/175hp US | Man. | 1984 | 14 Pin | 3.00 | - | .. | .. | .. | 909 | |
| 7521826 | 900T16/175hp | Man. | 1985 | 14 Pin | 3.00 | - | 15.1 | 152 | .. | .. | |
| 7524127 | 900T16/175hp | Man. | 1985 | 25 Pin | 5.11 | 26.7 | .. | .. | .. | 909 | |
| 7524127 | 900T16/175hp | Man. | 1987 | 25 Pin | 5.11 | 26.7 | 12.4 | 201 | .. | .. | |
| 137007001 | 900T16/175hp | Man. | 1987-93 | 25 Pin | 4.3 | 33 | .. | .. | .. | .. | |
| 7566599 | 900T16/160hp | Man. | 1990 | 25 Pin | 5.1 | 26.7 | 11.9 | 96 | .. | .. | |
| 4393971 | 900T16/185hp | Man. | 1991 | 25 Pin | 0.51 | 30.8 | 23.2 | 295 | .. | .. | |
| 8664814 | 900T16/185hp n.cat | Man. | 1990-93 | 25 Pin | 2.49 | 28.7 | 13.7 | 332 | .. | .. | |
| 7583172 | 900T16/175hp US/CA | Man. | 1991-92 | 25 Pin | 4.3 | 33 | 21.5 | 186 | .. | .. | |
| 8857427 | 900T16/175hp US/CA | Man. | 1991-92 | 25 Pin | 4.3 | 33 | 11.95 | 211 | .. | .. | |
| 9119330 | 900T16/157hp | Man. | 1993 | 25 Pin | 6.16 | 26.7 | 10.5 | 109 | 32.7/12.1 | .. | |
| 7524143 | 9000T16/175hp | .. | 1986-88 | 25 Pin | 5.90 | 25.5 | 14.8 | 166 | 37.9/11.9 | 909 | |
| 7524143 | 9000T16/175hp | Man. | 1986 | 25 Pin | 5.90 | 25.5 | 15.1 | 185 | 38.2/8.05 | 909 | |
| 7524143 | 9000T16/175hp | Man. | 1986 | 25 Pin | 5.90 | 25.5 | 15.9 | 185 | 36.2/12.2 | 909 | |
| 7524143 | 9000T16/175hp | Aut. | 1987 | 25 Pin | (2.85-on) | 25.5 | 15.1 | 171 | .. | 909 | |
| 7524143 | 9000T16/175hp | Man. | 1987 | 25 Pin | 5.90 | 25.5 | 15.1 | 177 | 33.8/10.6 | 909 | |
| 7524143 | 9000T16/175hp | Man. | 1988 | 25 Pin | .. | 25.5 | .. | .. | 31.4/13.3 | 909 | |
| 137007100 | 9000T16/190hp | Man. | 1987-88 | 25 Pin | 4.43 | 32.4 | 17.9 | 282 | 34.2/.. | 908 | |
| 7524150 | 9000T16 California, cat | .. | 1986 | 25 Pin | 5.96 | 25.5 | 18.5 | 78 | .. | 909 | |
| 7524150 | 9000T16/165hp (kat.) | Man. | 1988 | 25 Pin | 5.92 | 25.6 | 14.1 | 188 | .. | .. | |
| Type M | 900T8/195hp | Man. | 1986-89 | 25 pin | 3.82 | 36.4 | 29.6 | 461 | .. | .. |
* all R42, R138, P, F,
K is in ohm
** ( Pin18<->I02 / I02<->R21 )