Turbo turned up

Turbo arrived.

Bit grubby but nothing broken and under all the grub its all rather nice.
1275663 Volvo 850 T5R 96-97 N2P23HT 49189-01350 TD04HL-16T-7CM2
This puts out 250bhp in the stock installation (2.3litre engine at 5400rpm).

Given that my engine is half the capacity (1.146) but revs to 2x5400 (11000rpm limit, although 11400rpm when the gsxr1100wp engine is installed in the Bimota SB6). It would appear that this turbo should be a great match.

Includes internal BOV (dump valve) that recirculates the air (no chav sounds).
Also includes internal wastegate. The actuator is an aftermarket item, which is a bit annoying, but it looks servicable. The actuator on this engine uses clever control so that the boost can be varied depending. This uses a pulse width modulated bleed valve. The stock actuator opens at 3-4psi, but the electronic control increases this to around 10-11psi. Not sure I can deal with the pulse width modulation from megasquirt, but the alternative is an after market bleed valve, so probably more straighforward to do it that way.

I still don't know how the BOV works, so will have to do some reading.

Next plan, get some flanges made up.

Turbo

There comes a time when too much becomes an alien concept.

So, I have decided to pop a little turbo onto my car. Probably a TB2809 (aka Nissan 200sx s14 turbo)

This will be limited to about 17psi boost (plenty), but should deliver 250bhp at 14psi (>500bhp/tonne). This is more than I want to be running, but leaves me with sufficient headroom for when I need to destroy tires.

I need to learn to weld for this project, and also a few other details, but it seems like a sufficiently foolish plan to be worth progressing!