sticky nicky wrote:Thanks guys, yes I was looking at the MSPNP2, after reading an article that Dann did on here about turboing an NA. I would say all my wiring is still standard.
I have the turbo, just want to update the antique piggyback ECU so can turn the boost up a tad, safely. I also have a fifth injector so maybe looking at getting rid of that and getting 4 new injectors.
Will do some homework and chat to a few people here in Perth. Am glad of any help/advise from the Perth guys
Cheers Nicky
Hi Nicky, depending on your goal, before you consider buying new injectors, I have a set of 360cc injectors out of a Familiar GTX that I am not using that I can sell, but it depends on how much power you are looking for. My current set up has 550cc injectors , is running 9psi of boost and the injectors are running at 60% duty cycle - 80% is pretty much the limit before you hit issues.
In terms of a shopping list for diyautotune
-- MSPNP2 (obviously)
-- GM Intake temp sensor (IAT) and bung (Ali or Stainless depending on pipes)
-- GM Knock Sensor and pig tail (if you don't already have one)
-- Boost Control Solenoid Kit
Other items
-- Wideband AFR Controller / Sensor / Gauge - Not sure which one, because they are seem to have some issue
-- Optional - FlyingMiata knock sensor mount, or you can find somewhere else to mount it on the engine.
Been a while since I have seen your car. Do you have an intercooler? If not, you might need to get on depending on power levels and boost pressure you want to run.
Steps to get set up..
-- Weld on IAT bung to pipe work and fit IAT
-- Wire IAT into existing air flow meter connector (2 wires)
-- Fit Knock sensor to engine
-- Wire knock sensor to ECU (2 wires)
-- fit boost Control Solenoid in engine bay and re-route vac hoses
-- Wire in Boost Control - 1 wire to ECU, other to switched 12v power.
-- Replace stock O2 sensor with sensor from wideband
-- Wire in wideband controller as per the instructions that come with it - probably hardest bit to sort
-- Wire the wideband into the stock wiring.
-- Install ECU
-- Load up MSextra 3.2.5 (3.2.1 the mspnp2 comes with has a few bugs, as I found)
-- Load a base map
-- start the car and start tuning
Si.