2.2 Turbo...

[TFD]

Hi people,

Since there are not that many 2.2 turbo cars around I decided to make a topic for future reference. Might be handy for people how (not) to do it lol.

So long story short: I have a VX220 2.2 which I'm goint to turbocharge. Why turbo? Well....it's the only thing I know from my Nissan years and everyone is allready running a SC on their VX so let's do something a bit different shall we.

Plan is very simple. Keep things pretty stock to keep costs down (spend s**tloads on Nissan builds.... bin there done that, not anymore), keep it simple and "reliable" (like that would be possible when modding lol).

Aiming for 220ish whp at low boost (yes, I'm into wheelhorsepower and not the guestimated BHP stuff, I'm sorry) which is +100 whp extra on the light VX. Seems fun enough for me for the streets. I'm not a trackracer.

So here is the setup I'm planning to put on the Z22SE:

Garrett T25G turbo (Nissan 180SX)
VXR 470cc injectors
2.4 manifold (or build my own, not sure)
OBD-tuner
TAT-concept uprated intercooler for VXT
3" downpipe / 3" 100cell racecat / 2,5" backbox (Imhof)

So let's go:

IC seems to fit ok

Expensive bolt from the USA for the oilfeed (M12x1.75 to 1/8 NPT)

Preparing for some port matching

Looked like a problem, but I'll leave it since I'm deleting the EGR

Drill & tap the oilreturn (M12x1.5 to 10AN)

Prepping the log-manifold

Tested the welding skills

Cleaning up the turbo and do some meassuring

Next step is to make the turbo and manifold fit. Then I can order the oil and water lines and fab the exhaust.
When the front of the engine is done, I can start with the back (intake manifold,injectors etc.).

Oh and ah... I hope the stock clutch can handle the torque..

Any questions, advice etc. is welcome!

Grtz,
Daniel

 

[dewismotorsport]

Interesting project, VXR injectors will be over kill though, z20let or yellow c20let injectors will be plenty imo

 

[Dave Gilbert]

Defo keepin an eye on this.

how was the drilling of the cradle?

 

[TFD]

Drilling was easy in aluminium. First a small 6mm drill, then use the 10mm one. Wobble around a bit cause the M12x1.5 tap needs a 10.5mm hole.

The vxr injectors @ 3.8 bar flow 442cc (testresults from Dutch VX220 guy MarkV). With 10psi of boost they flow 480cc. According injectorcalculators I need 520cc for 280bhp @ 85% DC. 220-230 whp = 260ish bhp with a little headroom I guess.

 

[Dave Gilbert]

Easy for you because its right in front of you haha.

Hopefully will have enough room to get in on mine.

I will get a 6mm and 10.5mm drill bit.

Shame you didnt film it, you could have given me a tutorial. Haha. Cheers

 

[TFD]

Try it the other way around: Drill from the oilpan to the outside of the block. When the car is lifted you should have enough space ;-)

 

[Dave Gilbert]

I like that idea, that will make life easier.

 

[evocarlos]

Drilling was easy in aluminium. First a small 6mm drill, then use the 10mm one. Wobble around a bit cause the M12x1.5 tap needs a 10.5mm hole.

The vxr injectors @ 3.8 bar flow 442cc (testresults from Dutch VX220 guy MarkV). With 10psi of boost they flow 480cc. According injectorcalculators I need 520cc for 280bhp @ 85% DC. 220-230 whp = 260ish bhp with a little headroom I guess.

z20let injectors at 4.4bar flow just enough for 260hp tested by me but you need a 255 pump

 

[TFD]

But z20let's are 365cc right?

 

[evocarlos]

i think so but thats at 3bar they flow more under boost to the fpr

 

[TFD]

Copy paste:

Measured static flows: (on MarkV's injector flowbench)

Z20LET: 365cc/min @ 3.8Bar
LSJ: 406cc/min @ 3.8Bar
Blue VXR injectors: 442cc/min @ 3.8Bar

Stock fpr of the z22se is 3.8 bar and rising rate. So 0,8 bar of boost sees 4.6 bar fuelpressure

 

[evocarlos]

Copy paste:

Measured static flows: (on MarkV's injector flowbench)

Z20LET: 365cc/min @ 3.8Bar
LSJ: 406cc/min @ 3.8Bar
Blue VXR injectors: 442cc/min @ 3.8Bar

Stock fpr of the z22se is 3.8 bar and rising rate. So 0,8 bar of boost sees 4.6 bar fuelpressure

stock z22se fpr is 3.0bar @idle tested that to with my refrigeration gauges

 

[dewismotorsport]

Just noticed your on about WHP and not flywheel bhp.

So vxr will be more suited, and I'm sure the closed loop will be able to trim the fuel enough to make a smooth idle.

 

[TFD]

Vacuumhose on or off?
Not to disagree but read 3.8 bar everywere. Thought even in the manual??

 

[evocarlos]

at idle is vacuum
if you can find info to prove my gauge wrong then i would aggree
i have an fpr sat on the desk here in front of me but it does not list its rating like the bosch types that have them stamped in the case

 

[TFD]

Ok thanx. I think the 3.8bar is with vacuumhose off. Vacuumline on/off is a difference of 0.6ish bar so would end up at 3.2 bar.
Gonna add a pressuregauge to my fuelrail for extra data Can't disagree with two gaugereadings.

Beside this, the 470cc injectors will flow enough anyway I reckon.

 

[evocarlos]

Ok thanx. I think the 3.8bar is with vacuumhose off. Vacuumline on/off is a difference of 0.6ish bar so would end up at 3.2 bar.
Gonna add a pressuregauge to my fuelrail for extra data Can't disagree with two gaugereadings.

Beside this, the 470cc injectors will flow enough anyway I reckon.

i thought about a gauge for the fuel rail but dont have any way to view it while driving lol

 

[TFD]

After a closer look..... your gauge reads 3.2 bar?

 

[evocarlos]

After a closer look..... your gauge reads 3.2 bar.

its not fantastically accurate due to being dropped far to many times lol even tho its a refco set
i have a bog standard astra outside i could zero the gauge and show the reading from a standard pump and fps if you like ?

 

[TFD]

Appreciate the effort but don't make a big production out of it haha It's cold outside.