Thread: New member with Ka24 DET people carrier.

Hi, I know not an Sr20 but you have some good guys on here that I am trying to reach out to. Especially around AEM2 tuning for my engine. Have done some datalogs and things dont look right.

Pic of install notice the long intake runners



Short exhaust manifold, turbo mounted low due to passenger seat required

what is this in? I am interested

Hi, Nissan Largo. weighs in at 1630kg. Can upload map and also a 6psi psi log Afr's in the 10's according to log @ approx 30% throttle!

Spec list
Bored and matched 2.4 KA24DE Block.
Custom JE low compression Pistons 7.6:1
Eagle H beam rods, ARP bolts.
ACL Race Bearings
Balanced bottom end (SRD)
ARP Stud conversion. Head and Mains.
Cometic MLS Headgasket.
Ported & gas flowed head.
BC stainless valves
BC Titanium dual springs and caps
Brian Crower Stage 2 Cams.
Jim wolfe Adjustable Cam pulleys.
AEM fuel rail.
Genuine Walbro 255Ltr Fuel pump
RC 750cc Injectors
Fuel Lab FPR with Gauge
Braided lines
Catch tank
NGK Irid 8’s
Magnicor 8mm plug leads
MSD Blaster coil upgrade
Toyo High pressure race oil pump
Garrett GT30-76R Turbo
Custom stainless exhaust manifold with 44mm Precision Turbo External wastegate. ( screamer )
Full Stainless 3” custom free flowing turbo back Exhaust.
Full custom 2.5” stainless steel intercooler pipework with AEM water/Meth injection.
Greddy RS BOV
AEM Water meth injection system with tank sighted under the bonnet
AEM ATS
AEM 3 Bar Map Sensor
AEM Series 2 Stand alone ECU
AEM fully controlled boost control solenoid with heat sleeves.
AEM fully integrated wideband lambda system with gauge in the car.

That the Altima engine ?

here is my calibration have changed the knock gain to 2.0 and sensor cal to 5.0 so it doesn't pull timing.

https://drive.google.com/open?id=0B8yptSHavevPMmpUNVRTNEhpSFU


Here is log of 25% approx throttle @ 6psi

https://drive.google.com/file/d/0B8yptSHavevPUlFtSll5Y09vN28/view?usp=sharing

@Storm88000 correct well spotted, this is standard for this people carrier obviously intake different due to engine under seats. Largos came with either this engine or a 2.0TD.

@scoobydo sorry it took me while to approve your posts, but they are up now.

That sounds richer than you described in the PM.
Get that fuel under control first, then you can get a better idea of what needs to be done next.

Also, if you're up for it you might want to start from scratch using a base KA24 AEM calibration, enlarging the maps for boost, filling those cells in with safe estimated values, and getting your X and Y axis configured how you want it. I like more resolution below 100 kPa, and around idle.

Supposedly mapped by an "expert" in the UK. There is a bit of history with the engine, it was fully built and lasted a few days at most (melted electrodes scuffed pistons). New engine built with lower CR and apparently hours spent on mapping but the logs seem well rich. Struggle in the UK for tuners who I trust. Anyone ever mapped cruise (currently seems rich here), low boost and idle via team viewer? Thinking tether laptop to mobile and set up voice call to talk through what is happening obviously latency might be quite high but everything relative.

Apparently suffered with keeping DET at bay, not sure if the head is the same as the Altima, and combustion chamber design not DET resistant.


Ps thanks for approval seems like posts are now going straight in have you change something for me :-)

Here is a picture of the mini van