97 replies to this topic

[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 shitloads 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  

[The Batman]

Use the Saab b207 intake manifold

[ArticMonkey]

I have a new Saab intake manifold if you take up joe's idea.

[CHILL Gone DUTCH]

I think Sean aka Taz had a 2.2 turbo which was exported some where from memory

[christhegasman]

I think Sean aka Taz had a 2.2 turbo which was exported some where from memory

Yep it was a2.2 and now lives in the sunny Cayman Islands 😀

[Rosssco]

Presume you are using your own log-style manifold for space issues, to avoid cutting the boot (as would be required with the standard Saab stuff)?

 

Looking forward to your results!

[Captain Vimes]

Looking forward to seeing the results of this one. You're making it look and sound easy at the moment.

[TFD]

The saab intake is possible but I dont know how this one flows. It's better then plastic 2.4 boostwise, that's for sure.

Looking to fabricate something like this:

 

Hahn makes an aftermarket one but doesn't seem to fit really well in a VX.

 

@Rosssco: Yes, I would like to keep the boot. Once the log-mani is made to work, maybe I use it as reference to make a tubemanifold aswell.

[Rosssco]

Given you are planning on running fairly low boost and flow levels, you might as well stick with the standard 2.2 composite manifold and TB..?

 

If anything its probably slightly lighter and much less likely to heat soak in comparison to one of the alloy manifolds. Minor point being you can retain the standard alternator, which has to be changed to a 100A if using the 2.4 version..

[JG]

Car looks very clean. 

 

Quite rare to see them like that. 

[TFD]

Given you are planning on running fairly low boost and flow levels, you might as well stick with the standard 2.2 composite manifold and TB..?

 

If anything its probably slightly lighter and much less likely to heat soak in comparison to one of the alloy manifolds. Minor point being you can retain the standard alternator, which has to be changed to a 100A if using the 2.4 version..

 

Exactly. There are some pro's and con's to the intake manifold but no one can tell for sure.

 

I was thinking of a short runner manifold to raise the high end of the powerband. The T25 on a 2.2 will give plenty of low end and midrange power. The saab one has 5" shorter runners then the 2.4 but I dont know about flow. 

[Exmantaa]

The US guys picked up around 50cfm airflow when they switched from an LSJ intake to the Saab manifold for their LSJ turbo swaps. And we're talking around 350-400WHP here. => Use the Saab mani with PCV valve and you will outpower your conrods.

[Nev]

Did the OP ever resolve this issue?

[TFD]

"Ever"? This thread is a few days old lol.

 

But the issue with intake manifolds you mean? Exmanta is gonna send me his saab manifold, so I have a 2.2, a 2.4 and a Saab manfold next to eachother for comparison. Maybe I'll even look around for a flowbench or so if I'm in the mood. Solve this whole intake manifold debate.

 

So far I like the idea of metal intake and no alternator issues. 

 

Found an old nissanthread where some guys modelled some manifolds in a hydraulich flow programm thing stuff computer thing.

The problem they found with the box-like aftermarket intake (like the one in the pic a few posts back) is that the first runner/cilinder after the TB has less flow then the other three. The intake with a tappered body has better flow and even spreading:

 

[Arno]

Twin-plenum designs tend to fix that:

 

 

Feed from the side blows into the main chamber along a slot in the top so the air distribution is as even as possible.

 

Internally they are connected like this:

 

 

AFAIK originally pioneered by Audi for their rally quattros and it worked well.

 

Bye, Arno.

[speedster]

[oakmere]

The GMR intake is very expensive and looks crap. I am seriously thinking of making an inlet for my N/A as everything you can buy is too restrictive.

[TFD]

Finished the log-manifold today:

 

 

Will make a mall tomorow for a future tubular manifold. Log wil do the trick on a T25 for now.

Got about 20mm space between driveshaft and turbo. Should be enough with a heatshield.

Off now making braided lines and AN fittings...

[TFD]

Some more close-ups:

 

 

[Mangham54]

Heatshield is imperitive... The heat from that turbo will kill that driveshaft in next to no time, given it's proximity.