What is the best way to start a build page? I'm not sure if I'm going to do the boost solenoid.
So you are using the speed density! Are you using the narrowband O2 sensor only? I'm going to us the speed density and stock 1995 distributor and single MAP sensor. If I remember, you aren't using a second MAP Sensor. I was thinking of using the one MAP sensor for boost and barometric correction. We hunt at high elevation, I will be using wide band so might not need it?? Are you running stock injectors, if so what duty cycle at 150 kpa? Thanks!
The other forum under build diary i mean. Well read up on the solenoid. If your using a bleed type now for wastegate, the solenoid will add a lot of tuneability. You can adjust wastegate across a table similar to the fuel/spark. IE fully closed in lower rpms to build boost faster. I just suggest that you add whatever mods you will eventually want. Its a pita trying to re-add wiring for those add-ons down the road. Like now I wish I had installed the wiring for the meth injection. It would save me from having to open up all my wire looms again.
Im really not sure which of those settings i have. Its only using the 1 bar map sensor in MS, the wide-band 02, TPS, Coolant, and IAT sensors to run the engine.
You may run into heat soak problems with the stock IAT... although maybe the newer version of MS is better. I recently installed my IAT up near the bumper which isn't ideal. Under the hood i was getting IAT temps of 140F trying to tune my boost areas of the fuel maps. This was giving me headaches since the sensor is not the fast acting type as some turbo guys suggest. Im also not running an intercooler so I was forced to mount mine at the throttle body.
Looking at a megalog, at 149kpa (7psi) duty cycle shows 50%. Doesn't sound correct to me though. Oh and just for fun figures:
2600rpm I start building boost, MAP = 100
2750rpm MAP 121 (3psi)
2900rpm MAP 139 (5.6psi)
3100rpm MAP 153 (7.6psi)
This is a T25 from a 2.0ltr Saab .48/.48 ...also consider thats just one snap shot. Engine under more/less load. I see another area where boost started at 2200rpms and others higher at 3000.