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HalfJobHarry

N54 Intercoolers. NZ source?

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ARM, VRSF, Wagner US products supply these fasteners with their units.

Protects the plastic mount from stripping or overloading.

Not a lot of wall volume in the mount to support a larger screw.

Especially suitable for removal and refitting as the course self tap type style threading is not disturbed.

Screw in easy, to exsisting hole with torx bit.

Flat washer each side of cooler mount also.

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Awesome !! I had seen this kind of screw used in some of the online DIY's but didn't think that they would be available off the shelf here in NZ. Mitre10 say they have them in stock so I shall grab some next time I am in the store.

Cheers...

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1 hour ago, jon dee said:

Awesome !! I had seen this kind of screw used in some of the online DIY's but didn't think that they would be available off the shelf here in NZ. Mitre10 say they have them in stock so I shall grab some next time I am in the store.

Cheers...

Yep, got mine there.

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On 4/26/2021 at 12:12 PM, smiddy said:

I have spare hanger bolts you can have if your new unit does not have them.

20210426_120853.jpg

 

Thanks if Jon didn't claim these already I'd be more than happy to cover your costs on them! Failing that, is there a part number on these? Looks like they screw in to the 'factory' holes then some other bolt goes over it? .

EDIT: Totally missed the posts about the hangar bolts and what they do...makes sense and I should get hold of these. 

 

Edited by HalfJobHarry
additional info

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On 4/22/2021 at 10:01 PM, Ninjaspartan said:

Interresting to see how high the pressure drop is on some of those intercoolers.

Wonder how much these Aliexpress intercoolers drop charge pressure by? 🤔
 

 

 

I'm going to look at this indirectly by seeing how much my turbos have to work before and after. The waste gate duty cycle is an indirect measure of this. The ECU (and piggyback system) target a boost pressure at the manifold. The higher the waste gate duty cycle the more the turbos are being made to work to deliver a given pressure. If I see a substantial increase in WGDC...I can assume the pressure drop from the new intercooler is substantially bigger than the stock one. However even if that were to be the case, there must be a 'crossover' point where the increased flow volume through the intercooler + higher charge air density (lower temperature) results in positive returns. 

I think a significant issue with the stock intercooler is heat soak following multiple 'pulls' in a short space of time. That said, regardless of climate I've seen logs that show a sharp rise in IAT toward the end of a single pulls resulting in timing pulls and power 'left on the table'.

I'm keen to see what my logs say. 

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3 hours ago, HalfJobHarry said:

 

Thanks if Jon didn't claim these already I'd be more than happy to cover your costs on them! Failing that, is there a part number on these? Looks like they screw in to the 'factory' holes then some other bolt goes over it? .

EDIT: Totally missed the posts about the hangar bolts and what they do...makes sense and I should get hold of these. 

 

6mm nyloc or crimp loc nut with washer is all you need.

Part number on bag, not readable.

But welcome to these.

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Part number is CHAMPION BS1610 for the 6 x 50 if anyone else need to know :)

I've not been able to find anywhere around Wellington where I could safely do a hard 1st thru 5th gear pull, so I'm not fussed about the IAT going up a bit at the end of that kind of run. But anecdotal evidence and a number of casual tests reported on the internet indicate that generic stepped made in China IC's do hold the temperature down much better that the OEM IC on single gear pulls. And that did interest me for situations where there are repeated hard acceleration / hard braking cycles, or simply high speed cruising. Cool air is the best thing you can feed a turbo engine, so I figured chuck one on, get some benefit now and have a bit of headroom for future mods :Megustaobseso-min:

Cheers...

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On 4/21/2021 at 4:34 PM, HalfJobHarry said:

Good looking store actually....I'm thinking I'll go with this guy if I can get a good shipping price. At the price those downpipes look mighty attractive too...but then I'd have to drop my subframe...and I'm really not wanting to do that just yet. 

Re the lower charge pipe....I don't see that on the store...you talking about the bit from the intercooler outlet that goes up to the charge pipe proper? 

I have a VSRF intercooler, but I got the downpipes from HZ.

The VSRF intercooler looks identical to the HZ ones.........

Fitting the downpipes was a battle, but I got them in without dropping the subframe. You just have to be patient & determined.....

Getting the stockers out was harder than fitting the new ones.

However, they don't line up perfectly at the junction to the rear exhaust system, so I made a 3mm spacer & used 2 gaskets on the one side that came up slightly short.

I suggest getting MHD flasher set up on your phone, allows you to load a tune to get the best from these mods.

I also have the XHP flasher for the auto, wow, big difference, I'd do this before the engine mods if I was starting again :)

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