Z11 Cube - Impul Supercharged Edition

StevenRB45 · Aug 20, 2024

It is very odd, I wonder if there was a loophole somewhere it was needed for re. Japanese inspections.

My reading of the warning about not using it would be it seems it was mapped for boost...so switching off will likely make it run rich but that's a total guess.

blu73 · Aug 20, 2024

That is my exact same opinion @StevenRB45 - the fuelling will be off and its probably pulling timing as well. It makes sense to me now I read the manual and thought about how its all working. It doesn't have a bypass valve or anything so all the air is going through the charger whether its on or not, driving it without it on is also going to be like pulling through a huge restriction. But also means it is genuinely really important the clutch lets go at idle and on decel and that its not designed to be off. But I'm not worried, its working properly now its on all the time, and I don't see how not having it on would damage the charger.

I've just taken it to fill up petrol, first proper drive and I need to tighten the belt a smidge. It squeaks on start-up and every so slightly under load I can hear it slipping. I expected this mind, I didn't want to overtighten it.

With regard to the on/off switch, its saying its there for install and testing. Seems many don't have the switch even. I am very glad I read this and tested it though, drives so much better now that it ever has, on or off - and as previously said, pretty sure it would damage the charger with the clutch engaged all the time.

I blocked MCM on YT years ago so not seen any of their videos on it. I was being dramatic in that update post, its not all that bad at all. The charger kit is certainly well thought out if you ignore the belt not coming out issue - but it is the exact same kit for like 5 different cars (both engines fitted to a cube have the exact same kit, and the note and pulsar and something else). Once I had that bit of bracket off I can see that idler on it will actually move about 10mm forward and back so it might actually be possible to get the belt out and thats why its like that.... I'll try next time. In any case this supercharger kit could be installed but someone with basic tool and very little knowledge and this google translated manual and have it running same day. But we'll see if I can get the coils and plugs out without taking the top pipe off before I decide or not whether its totally stupid though - cause I cannot find gaskets for that as of yet and I'd like new ones if I take it off!!

StevenRB45 · Aug 20, 2024

Well they did exactly the same car and supercharger set up recently...so may be useful maybe not.

Re. The switch, given the switch is there you'd imagine the maps would need to be such that in the mentioned emergency situation the engine didn't eat itself immediately.

So while it may not be the most efficient thing to run with it disengaged as an obstruction...it should be safe at least you'd think.

blu73 · Aug 22, 2024

StevenRB45 said:
Well they did exactly the same car and supercharger set up recently...so may be useful maybe not.

Re. The switch, given the switch is there you'd imagine the maps would need to be such that in the mentioned emergency situation the engine didn't eat itself immediately.

So while it may not be the most efficient thing to run with it disengaged as an obstruction...it should be safe at least you'd think.

yep agreed... I had a quick watch and I wish they showed more of the charger apart.. Will watch back later and see if I can pick up any details off any of the bearings in shot. I'd love to be able to buy a set of bearings without taking it apart, internet is just full of people saying they can't find the answer or source parts and noone with answers, the usual stuff.
Cause I'm gonna need them one day and I already know the people that make this charger plain refuses to sell parts outside of the industry or tell you anything or speak to you. Yay! lol

blu73 · Aug 26, 2024

Little thing..
This disgusting intake pipe....

Well that won't do lol..

So do an impression of a Narwhal

Trim and secure

Ahhhh, much better.
That's it. Lol

blu73 · Oct 1, 2024

So got it some proper tyres now the weather is turning.. Back to my faithful Michelin PilotSports. But we have moved from 195/45 to 205/45

But decided I hate the black too much to have them just put on so took them to a local place for a colour change.
Went to change wheels and found a punctured tyre

so had to steal the TE off the Suzuki for a week. Which the Mrs hated but I think looked awesome

Anyhow, your either gonna love this or you are gonna hates, I doubt there will much in-between on this one....

I really need to wash car for full affect.. soooooooon. But I'll just say, they are purple and look way more purple than how pink they look in the pics.

Sorry not sorry, I love it!

blu73 · Friday at 10:15 AM

Oh yeah, updating threads.. I'm really bad at that

That said there isnt really much to update - the top mount that initiated replacing top mounts failed again so now that side has a brand spanking new oem nissan top mount and there is another for the other side which i havent swapped yet but i got both cause the cheap unbranded one will clearly start knocking soon as well... Actually on that topic should any of you end up with a cube or micra k12 one day.. Its not the top mount knocking its the cheap ass bearing underneath, just buy a bearing the top mount itself will be fine, i promise. lol

I did oil and filter and air filter recently, i was going to do the cvt gearbox oil change at same time but i was time challenged that day and on checking the oil it still looked brand new so I left that for a later, warmer day. Whilst under there though noticed both inner CV boots were not too hot and one had just started flinging grease and that the rear engine stabiliser dogbone thingy was also on the way out, and a very feint knock i decided was probably a drop link so swapped both them too.

Total side note, i hate the brakes on it, they were brand new when i got it but I had enough. Measured discs whilst doing the cv boots etc and confirmed it does have the smaller discs and calipers (238mm discs) and not the larger ones found on Cubic or UK Micras (260mm discs) - seller told me it had the bigger ones. To this end I have ordered some of the bigger calipers and discs and decent pads for it. So that and cvt oil are the to do jobs on it atm.

I think thats it... oh, i added a motorcycle brake light under the rear numberplate as a foglight. And its got a new sticker..