Nissan Micra K11 SR+T

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Stani1029

Stani1029

Club Member
I only have minor things to do like ecu wire swaps for the knock/O2 and tacho. Fit my new sabelt harness fully and check the car over before i decide wether to take it for mapping (its already paid for) or an MOT. Im thinking mapping to iron out any running issues so that i dont encounter any emissions issues again

This is how the car currently sits
 

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I only have minor things to do like ecu wire swaps for the knock/O2 and tacho. Fit my new sabelt harness fully and check the car over before i decide wether to take it for mapping (its already paid for) or an MOT. Im thinking mapping to iron out any running issues so that i dont encounter any emissions issues again

This is how the car currently sits
Blimey, how have I only just seen this now?!
She looks amazing mate!! Wheels suit her so well, bet she'll f***ing fly once the map's sorted
 
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Stani1029

Stani1029

Club Member
Blimey, how have I only just seen this now?!
She looks amazing mate!! Wheels suit her so well, bet she'll f***ing fly once the map's sorted

ive just recently revived the thread and i guess you are new to micra scene, it should fly but whatever comes out of the mapping session i just want to be able to enjoy the car on the road when i have time then concentrate on any sort of drag/track sessions maybe the following year
 
ive just recently revived the thread and i guess you are new to micra scene, it should fly but whatever comes out of the mapping session i just want to be able to enjoy the car on the road when i have time then concentrate on any sort of drag/track sessions maybe the following year
Haha yeah you'd be right, only passed about 6 months ago, I've got quite a bit to learn lol
I can see now you're a pretty OG member, I bow to you sir!
Cannot wait to read up on this though and see how it goes in the future 👌
 
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Stani1029

Stani1029

Club Member
Managed to fix the wiring issue with the o2 sensor so its now running alot better. Couldnt find any issues with the knock sensor wiring and never had time to get round to fixing the tacho.

i did have time for a quick test drive along the farm road and it doesnt half want to take you for a drive 😎

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Stani1029

Stani1029

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Dyno and mapping was today, to start off they did a smoke test which showed up various leaks.

There were a couple of leaks on the boost pipes (which sorted with a tighten up) and then there was one on the inlet manifold. This was due to a snapped bolt that i never noticed where the manifold can split into 2. It was going to be too time consuming to do it there and then so we got around it by clamping it with some mole grips 🤣

Next they did a pressure test up to 1 bar which then showed a leak at my cheapy fuel pressure regulator, there was a burst o-ring. Fixed that and the mapping begun

Mid way through their AFR probe broke, the sensor and the plug needed swapped so there was about an hours delay before it was back up and running.

After this everything went smooth and we managed to pull 301hp and 274ft-lb with just under 1 bar of boost. Huge moment of relief afterwards and the car is so good to drive.
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Stani1029

Stani1029

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Thats mega Stani you must be chuffed to bits with that!
Yeah over the moon! I would have taken 250, he did say there could be 30-50hp more if i upped the fuel pressure and maybe injectors but not going to get greedy as 300 is a very decent figure
 
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Stani1029

Stani1029

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Decided to call this project the SR+T so created this badge for it (inspired from the SR font) badges were photoshopped and then cut out on my wifes cricut machine.

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I have also applied one of my personal plates to this car and have ordered a jap sized plate for the front bumper which will allow me to mount the reg plate to the side and get full airflow going through the intercooler
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Stani1029

Stani1029

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The downpipe i made was hitting the front corner of the exhuast tunnel and was getting increasingly more annoying! It was also too close to the turbo oil return for my liking so off it come to have adjustments. I had to chop it in like 5 areas to get it where i wanted it and also extend it by roughly 50mm! The future plan is to have a professional make me one but this will do for now

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Whilst this was off i fitted a short shifter as the gear changes felt a bit loose, also one of my new rear wheel bearings was droning badly and flagged up as an advisory on my recent MOT so i fitted 2 replacements.

Next up was the engine mounts, as you can see from my dyno run above the engine moves alot. I ordered these mounts from G-Spec peformance in the states and thankfully got the correct ones with advice from my go to Almera man Joe.
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Stani1029

Stani1029

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I also copied Paul Li with buying some heavy duty digital scales with plans to even out the car a little and maybe do a bit of weight shredding!

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I was being curious the other night so had a quick check on how the car was sitting and it does need work


As you can see the front drivers side is over the 300kg limit of the scale, i think i might have to remove the drivers seat/rail to try and get it within the limits since there is no current passenger seat fitted and the plan is buy new ones anyway.

Here are the notes of each corners weight and their percentage. I also make that 67% of weight over the front wheels

The aim is to have a good balance across each axle without my weight added in and hopefully a 60/40 front/rear difference

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Front axle difference is approx 45kg without a passenger seat/rail and thats if the overloaded scale is around 310kg like ive noted.

Rear axle difference is 57kg, this weight is a little confusing as that seems like quite a big difference!
 

frank

Club Member
maybe the anti-roll bars are reacting to the engine weight ?
praps remove a droplink front and rear, then retest, then fit custom length droplinks ?
 
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Stani1029

Stani1029

Club Member
maybe the anti-roll bars are reacting to the engine weight ?
praps remove a droplink front and rear, then retest, then fit custom length droplinks ?
I dont have any roll bars mate, would be a struggle to fit one on the front to be honest!

Maybe the panhard? i guess ill figure it out when i begin to muck about with it all for real 👍🏻
 
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Stani1029

Stani1029

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Have taken a few more notes of the cars weight,

passenger side: 435kg
Drivers side: 423kg

So we have a decent left/right weight distribution

Diagonally is where there is a huge difference

Left front/Right rear: 378kg
Left rear/Front right: 480kg

After watching a few videos weight can only be moved from one diagonal to the other which means i have to shorten the suspension on the heavier diagonal and raise the suspension on the lighter diagonal, how much i do not know!
 
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Stani1029

Stani1029

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Few updates on some recent changes:

The exhaust changes i made seems to have done the job upfront but has now caused the rear backbox area to knock. Thing is when i grab the exhaust move it back and forth i cant seem to get it to hit anything 🤣

The short shifter, i wasnt thinking i wouldnt like it as i had one before and didnt like it but it actually feels much better than better and more solid

The solid engine mounts are just crazy, i expected vibration from them but nothing like this! I will have to spend some time making sure everything is secure and get used to the new way the car feels. Apart from the vibrations and rattling i would definitely recommend these, the car just feels so solid upon acceleration and through the gears and i used to get some traction in 3rd gear which i now dont 😐
 
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