ayam pasang KKT only for playing piak piak piak , but i believe we need to maintain tekan driving style since original ECU adapt with our driving pattern , most tuner are just tune using CAN copy and paste ,best is change to standalone .
VVT-I open at 4k rpm , is that real ?

ayam pasang KKT only for playing piak piak piak , but i believe we need to maintain tekan driving style since original ECU adapt with our driving pattern , most tuner are just tune using CAN copy and paste ,best is change to standalone .

VVT-I open at 4k rpm , is that real ?

kek2. bro no need to wait dyno. u drive i record obd screen.
purposely light pedal & max pedal a few kilang street on the weekend will know answer ady.

Spend so much just for the sound? Lucky I can tune my own cars.

Lol dun wan rush to blow hamster wheel ba.. but unker also want to see how exactly the thing was mapped i.e. on a competitor's tuner kot hahaha..

Unker went to recheck the fuel trims... curiously... its between like 10%--10% lol... short term trim can up to 20% when pedal la...

The -40 -60% apparently is fuel trim on idle/neutral. The feller mcm got different trims for different engine states machiam. The moment uncle neutral, it swings into super -ve, on gear light pedal is close to zero, tekan kuat naik ckit and on engine brake its -10-15%. Its mystifying cause the trim instantly changes between the driving state, unless the bank is not showing the base value, but after modifiers have been applied a.k.a. nett fuel trim kot.

The lagi bestest thing is, there is only 1 fuel trim bank reading.. bukan 2 meh for 4 cylinder? But if based on the fuel trim info so far, ECU is still on a ride it seems. Havent logged the session on WOT yet.. Kuai2 need my hamsterwheel to turn reliably on weekdays lel.

- Seems what most sources say, just that yeah this guy seemed to bring it all the way to 15+ like dafuq. I hardly WOT now la cause its also harsh on the 1st gear, so will wait until i reach the next dyno pull.
- I guess 2 readings on the same strap should still apply for that instance i guess? kek
- What should pre-ignition feel like? Roughness? loss of power? Maybe the first ever so much slightly, but loss of power was not prevalent. It should get worse as rpms/cycles increase i assume?
I guess I should start charting the fuel trim readings instead but they have been -ve for a long time even before the tune. I'm guessing its my cheapass driving style, but it should determine if the ECU is actively trying to counter the low RPM enrichment by the piggyback. Then again, I still don't positively know how to tell exactly when the ECU decides to go open loop which should leave the piggy back in proper control no (does it still use trim here)? The other thing would be those half/transient load situations how the piggyback handles it.

As for the features I guess now i know why the tuner was insistent on using the compact32 instead of tiny apart from the larger map table and supposedly faster processor, but it seems he did talk about clamping when i ask about sensors going wild, and even KKT tiny has it (tho would'nt this be for boosted engines kot?) I assume it clamps both ways? i.e. very lean vs very rich interceptions?

Time to figure out exactly how smart is my hamsterwheel - Prob need to log a run with timing advance readings on WOT. So far it responds accurately, retard on engine braking, advance on acc as expected, wanna see if it would retard on WOT to see if knock protection still exist. I'd assume OBD readings come direct from ECU polling and not packet sniffing sensors off the bus right? If so I can safely assume the obd reader is as per what the ecu knows, honestly very few readings either simple thing or just ham kah chan app development.. kek.

The lagi bestest thing is, there is only 1 fuel trim bank reading.. bukan 2 meh for 4 cylinder? But if based on the fuel trim info so far, ECU is still on a ride it seems. Havent logged the session on WOT yet.. Kuai2 need my hamsterwheel to turn reliably on weekdays lel.

Rough, loss of power for sure.

If the tuner clamp the sensor voltage(signal) correctly, it shouldn't be wild (reading randomly, hi n lo).
The usual suspect for clamping is the MAP/MAF sensor for fueling.
Ignition is by intercepting(delay/advance signal) of crank sensor.

Yes, your OBD reading comes off directly from your ECU, but if the signal been manipulated from the piggy, expect to see a different reading.
Usually is 1 bank, unless you got a V engine. 

Now I wish I installed my piggyback and tune  myself already.    Then can understand the problem better.

So ah... unker CNY rage spend got mai enjine piggybacked and unker hid the module somewhere under the dashboard but unker sked tertekan the white mode button while squeezing it around. Unker dgn soalan bodoh lagi:

1. So pertanyaan khas utk mrk yg ada pakai KKT ni, usually got 2 maps according to the workshop, but unker only got 1 cause tamau backfire preng prong preng prong, what unker have seen from checking online vids is the default mode appears to be steady state flashing oren, and backfire is double flash?

So what are the behavior if accidentally tertekan white button if only got 1 map inside? Will it ignore? As unker know the wiring guy copied the stock/default specs into both maps before the tuner, hence they should both have started at 0 interception kot... so if unker tertekan also is prob just risking swapping to stock setting kot? Baru hari ni terkena, workshop tak buka weekend lel.

2. Anyway, the dyno pic is stuck in unker other phone, when got time to upload it baru share la... but unker ada risau ckit they increase AFR at the upper range goes up 15+ at 4500rpm, before falling back to 12.5 again near redline. Sked leh if engine pong klu stay too long at that 4500? Selamat ke mcm ni? Generally the only time unker ever rev beyond 3500 rpm is to smoke other tin milos at traffic light GT. The nett gain was a good 3-4HP across the entire powerband on a heartbreaker Dyno Dynamics, so unker heppi la.

3. Does wheel dyno / light wheels skew the dyno graph? Unker see the low end HP/torque is way higher and flat compared to the known torque curve of the engine. After tune curve is raised nearly entirely, it follow the engine character - peak torque was recorded from 2-4k rpm sumwhere, but unker know this is impossible for unker engine since its well a NA. What made it even weirder was constant falloff despite engine stock design peaking at 4500 rpm (136Nm --loss on wheels ++light wheels) - it falls smoothly from 4000 to redline. Theres a big torque jump stock and tuned at 1900 rpm (dyno recorded this as peak due to the high hp against very low rpm), tuner said likely is light wheel effect, but he said it should be accurate representation of the on-the-road as well. Prob free mini turbo for N/A with light wheels? LEL

UPDATE: got the HP/AFR one up. The torque curvfe pic haram jadah thx to lousy camera, kena blur habis niama. I had to rebuilkd it by reversing the HP reading, but its pretty similar la. 4th gear pull.



The ori (true stock) engine curve added adjusted for drivetrain loss 15% in yellow. The predicted falloff is far greater on the dyno than on the engine which unekr kinda felt using the lightweight wheels at speed. but the falloff is mcm so kesian unker formula salah ke lol..

What car?
Horsepower up only 80 plus better save the money don’t tune.

Its a dyno dynamics

Workshop in Muar - RS dyno & tune (not same as the KL one - he tarak stock when contacted earlier) - coz they open during the break and got promo, a friend suggested, reviews were ok and welp excuse to roadtrip,. The dudes seemed well versed la wiring was neat and feller quite meticulous on sensor checks before moving ahead, unker pretend bodo ask stupid question din get bs la.

There was some complaints from the tuner on the sensor readings since its butt plug was off a few times. Lepas habis he ran a few more rounds on dyno, then unker bawa pusing, balik dia sudah mia. Owner say they always kasi conservative one, but bukan dia tune ma, the macais meanwhile were busy on the workshop so once they setup they were off to the other side, so no opportunity to ask much on the tune. But from what unker see the stock one seems right being 12.5? Unless they actually go lower? 11 and 10 mcm is turbo range already kan.. But the low RPM readings are way too learn at 16+ if asking for power no??

Unker also also curious on the transient load states since those are not captured on the pull. Compact32 lists features for that la, they recommend vs tiny for smoother map. Tengok2 the wiring mcm only got fuel rail, 4 cylinders, and throttle nia. My OBD reader can't pull AFR from the ecu, but prob ill be trying to pick it from fuel flow reading and work backwards kot.

Mebbe better get opinion from another dyno here since its a long ride down - want to see what it turns up on a dynojet also. Unker pretty sure it wasn't that fine tuned esp for the ignition advance, but well he say NA is straight forward quite fast so diam dulu je la.