[AmuroRay]

Originally Posted by Torgus

While that is cool, pun intended, meth will lower the AITs and increase octane and costs a fraction of that IM and pump/radiator set up. I could see it for a track car, but for a car that lives on road or only sees the track a few times a year that is a bit excessive. That being said, you do you.

I am guessing retail will be as much as a super charger.

So they had the runners and other side cast, and then welded in a heat exchanger. Those welds are not supposed to be sunken in like that. Excessive concavity can lead to incomplete penetration and fusion, compromising the strength and integrity of the weld joint. Granted on an IM not so much an issue as there is little mechanical stress on it.

Nice to see them continuing to add to the N52. The IM will never cool below ambient, unless you have an ice bucket, meth can cool significantly below ambient while adding octane/AKI.

Water to air units can, air to air units cannot.

[Torgus]

Originally Posted by AmuroRay

Water to air units can, air to air units cannot.

If the water is cooler than the ambient air, yes, but not for long. Hence why I mentioned an ice bucket.

Originally Posted by Igor.v_a

WMI does not cool the air, but does not allow it to heat up further.

What? Water/methanol injection system significantly cools an engine's intake charge by spraying a fine mist of the mixture into the cylinder. As the mixture vaporizes and absorbs heat, it lowers the temperature inside the cylinder and reduces the chance of detonation. This allows the engine to run with more advanced ignition timing and boost, which can create additional horsepower.

This is why some cars have issues with the IAT sensor reading false temps as it gets soaked in methanol that is starting to evaporate. Evaporative cooling.

https://www.holley.com/blog/post/the...works_so_well/

https://www.motortrend.com/how-to/im...nol-injection/

[Igor.v_a]

Originally Posted by Torgus

If the water is cooler than the ambient air, yes, but not for long. Hence why I mentioned an ice bucket.



What? Water/methanol injection system significantly cools an engine's intake charge by spraying a fine mist of the mixture into the cylinder. As the mixture vaporizes and absorbs heat, it lowers the temperature inside the cylinder and reduces the chance of detonation. This allows the engine to run with more advanced ignition timing and boost, which can create additional horsepower.

This is why some cars have issues with the IAT sensor reading false temps as it gets soaked in methanol that is starting to evaporate. Evaporative cooling.

https://www.holley.com/blog/post/the...works_so_well/

https://www.motortrend.com/how-to/im...nol-injection/

Articles on the Internet are certainly good.

But real practice is different.

I wrote that I have an 80mm supercharger pulley and at 7000 rpm, the supercharger speed reaches 50000 rpm.

At these supercharger speeds, the air gets very hot.

Perhaps if there was a 120mm pulley, the picture with IAT would look much better.

I have already broken one engine due to high temperature, IAT.
At that moment I had wmi 500cc installed. Which in practice was not enough.

The thermal clearance on the OEM piston rings failed and the rings burst and also broke the piston wall.
I showed the video and photos of 22RPD.

22 RPD said this was due to very high temperatures in the combustion chamber.

Therefore, I repeat, WMI does not cool as much as we would like.

I had to buy a new engine.

Therefore, following the recommendation of 22RPD, I installed a second wmi injector in front of the compressor. I recorded and sent Log to them.

And the IAT sensor in the manifold shows not the low temperature due to wmi, but the real one.

So, I just drove around the city without turning on wmi and recorded Log for IAT analysis and made comparisons.

Without WMI, the intake manifold temperature will reach over 100 degrees Celsius.

Now my IAT simply does not increase and remains approximately 50 degrees Celsius.

This means that WMI absorbs quite a lot of heat.

But WMI is not omnipotent and it cannot completely replace the intercooler.
It would be ideal to install WMI + intercooler 😁

[shimstack]

My car started leaning out under throttle. I drove it to work in the morning running well and pulling clean, and it behaved the same at lunch. When I drove it home, the AFR gauge climbed to 18.X+ and it stumbled whenever I attempted to use over 30% throttle.

Testo logs show the same- lambda climbs in response to throttle.

I don't think this is a tune issue. I flashed a couple previous revisions of the tune and the behavior is still there.

I bought a fuel pressure test kit to measure the pressure at the rail, and I get a strong 72psi, with only slight fluctuations blipping the throttle in neutral. The hose isn't long enough to drive with the gauge, but I suppose I could extend it.

Has anyone had a fuel pump fail like this? I have 98k miles on the car and I expect the fuel pump is original. I'm now obviously asking a lot more of it with the GT2 injectors. The top of the pressure regulator side is dry- no cracks or leaks. I'd like to be able to diagnose this correctly rather than just throwing parts at it.

[shimstack]

OK, might be a false alarm. I think I got a bad tank of fuel. I poured a can of BG in the remaining 1/2 tank, drove around a little bit, and let it sit for a day.

Today I drove it to a different station and filled the tank the rest of the way and the lean condition seems to have subsided. Here's hoping.

[Igor.v_a]

The intake manifold is now on sale.

https://stagefp.com/product/stage-in...take-manifold/

[Grizzopit]

We have created a N52 ESS supercharger chat in WhatsApp. We will try to gather people from all over the world and share experiences. If you are interested, join us, we will be glad.

Send me a PM and I’ll give you a link.

[Raccoon]

Originally Posted by shimstack

Right now 8psi at 7000rpm, with 85mm pulley. I'm also at 1700m above sea level, so -2.5psi compared to others at low altitude.

I'll install a 75mm pulley once the tune is working better. That should produce 10psi. 22RPD is still working on some driveability tuning.

Also keep in mind there is a significant pressure drop (2psi maybe?) between the SC and the throttle body due to intercooler cooling effect, restriction, and the longer piping run. I'm curious about IAT after 10psi pulley.

I feel that one, I'm on my 9th revision with the Porsche injectors. Bit of surge at idle and some stumble on cruise decel.

[Raccoon]

Originally Posted by Torgus

While that is cool, pun intended, meth will lower the AITs and increase octane and costs a fraction of that IM and pump/radiator set up. I could see it for a track car, but for a car that lives on road or only sees the track a few times a year that is a bit excessive. That being said, you do you.

I am guessing retail will be as much as a super charger.

So they had the runners and other side cast, and then welded in a heat exchanger. Those welds are not supposed to be sunken in like that. Excessive concavity can lead to incomplete penetration and fusion, compromising the strength and integrity of the weld joint. Granted on an IM not so much an issue as there is little mechanical stress on it.

Nice to see them continuing to add to the N52. The IM will never cool below ambient, unless you have an ice bucket, meth can cool significantly below ambient while adding octane/AKI.

I think that's an optical illusion on the welds, top picture they look raised above the flat surface at least a 1/2 mm. Bottom picture with the lighting they do indeed look sunken in. Same reason my phone camera makes my chesticals looks less swole....

[Igor.v_a]

I measured acceleration of 100-200. I am happy with the result.

[Igor.v_a]

Originally Posted by Grizzopit

We have created a N52 ESS supercharger chat in WhatsApp. We will try to gather people from all over the world and share experiences. If you are interested, join us, we will be glad.

Send me a PM and I’ll give you a link.

Guys, owners of N52 Supercharger.

Write to Grizzopit in PM and we will add you to the WhatsApp group, where we share experiences, results and are always in touch.
We communicate in English.

[Raimund]

I'm selling a custom air to air intercooler kit built for rotrex supercharger but can modify charge pipe for ESS

My transmission heat exchanger is in the way on my auto and don't feel like going external trans cooler.

$180 shipped for it in the USA