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Hi guys took my s15 in for a tune @ EFI Performance on the gold coast pretty happy with results but as Im no expert in tuning I want to know if the charts look good and if the AFR's are where there ment to be....cheers

Mods:

XTR GT3040 (.70 Comp, .64 Exh)

42mm External Wastegate with Screamer Pipe

HKS Step 1 Camshafts (256in, 264ex – 11.5mm lift)

HKS Adjustable Cam Gear

HKS 740cc Injectors

HKS EVC IV Electronic Boost Controller

BLITZ BOV

Malpassi FPR

5 Speed Manual Gearbox from S14A

Exedy Clutch

Tomei 250lph fuel pump

Top Mounted Exhaust Manifold

K&N 4inch Inlet Pod Filter

Hybrid Deltafin Tube & Fin Intercooler Kit

Trust Power Extreme 3" Stainless Steel Exhaust

Xforce 3inch High Flow Cat

Wolf3D v4 Plug-In Programmable AEM ECU

before tune: 208.6kw @ 10.9psi

after tune: 274.1kw @ 17.8psi

Cheers

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it's okaaaay. except for the fuel control as it's ramping up onto boost. as it ramps up to near full boost the fuel is not keeping up and it hits the 14:1 AFR as boost ramps up to 16psi before dipping down to ~12.5:1 which is ok. but the boost ramping area is always tricky and is usually where you get detonation. as the power and boost pressure start to rapidly increase the tune needs to be adjusting fuel and timing in a hurry to cope. if it were me I would probably want that little area of the tune looked at a bit further.

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Ok

1. AFR's are dreadful around 4000-4700rpm. They should not be around 14's as its ramping up

2. Boost controll is average, i mean you only have 160rwkw @ 4500rpm.

5000rpm you've only just hit 230rwkw and there is a nasty hole right there until it lifts up again towards 260

For a turbo of that size and that rear housing, i would expect it to be noteably better

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thanks for the info guys, appreciate it...just spoke to the tuner then will be taking it back 2moro to get more fuel added around the 4000-4700rpm. he did mentioned after the run that you see in the graph he added more fuel down low and a bit more up top but didnt do another power run. Ill get him to sus out the dip in the power curve up top aswell. R31nismoid you mention the boot controll is average and its only got 160kw @ 4500rmp then just hits 230kw at 5000rpm......becuase of the size of the turbo it is pretty laggy and when im in the car and plant it rght up to almost 5000rpm u can feel the car isnt really under much load its trying to spool and boost up and soon as it hits around 5000rpm it almost instantly then hits 7000rpm really kicks in hard...is this cause of the tune or cause of the lag? cheers

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ok i added a new AFR line on how it should look like, or there abouts, it could get richer about 500rpm earlier but you get the idea.

Tune em rich, enjoy your engine for a large number of years, tune em lean ??? then your keen!

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thanks guilt-toy I really appreciate it...thats wot I said to the tuner when i 1st took it in, I said I would rather less power and a realiable tune then running it as lean as possible to get as much out of it as u can...will definatly not be goin back there again in the future and wot makes it worse it cost me $1000

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Mate go back to him, give him another chance, tell him to fix it properly and get a reliable tune!

He might have been having a bad day / week.... surely he will fix it for free. $1000 man, far out i feel bad for you... but for that kinda money you would EXPECT backup support.

Go back to him and tell him you want the AFR to be 12.4 from 2 - 8psi and then from 8psi to 12psi you want 12.0 and from 12psi to 18psi you want 11.5afr to 11.8.

If he does that for you then he may be a good tuner to use in the future.

good luck with it!

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yeah, mine was leaning out on monday on the dyno, had to go from 770cc to 1000cc sards...now i need a fuel tanker to follow me around. but oh well i shouldnt complain.

that has like no power till 3700..that would be good around town driving car.

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i hope you have more then 700hp at the rear wheels?

yeah, mine was leaning out on monday on the dyno, had to go from 770cc to 1000cc sards...now i need a fuel tanker to follow me around. but oh well i shouldnt complain.

that has like no power till 3700..that would be good around town driving car.

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thanks guilt-toy I really appreciate it...thats wot I said to the tuner when i 1st took it in, I said I would rather less power and a realiable tune then running it as lean as possible to get as much out of it as u can...will definatly not be goin back there again in the future and wot makes it worse it cost me $1000

If your on the coast why didnt you take it too matty spry?

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hmmm maybe you should worry.. you don't need to know shit or have any tickets or anything to have a tuning shop and a dyno.

Maybe you should ask for your money back. drive down to nsw, get it tuned and drive back and you will have change from your $1000 lol

Try mercury motorsport?? i dunno i don't know any places up there mate. good luck with it though.

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R31nismoid you mention the boot controll is average and its only got 160kw @ 4500rmp then just hits 230kw at 5000rpm......becuase of the size of the turbo it is pretty laggy and when im in the car and plant it rght up to almost 5000rpm u can feel the car isnt really under much load its trying to spool and boost up and soon as it hits around 5000rpm it almost instantly then hits 7000rpm really kicks in hard...is this cause of the tune or cause of the lag? cheers

I'd say combination of both potentially.

Boost control needs setting up better, as does the tune require a fair bit of work.

Also it could be cam timing is off causing this too... a number of things for the tuner to think about thats for sure

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boosted 32.

Was yourse the orange S15?

If so my missus wants it, lol. thing is niiice.

Mate you would have seen my VL there, white/silver VLT calais, GMH.088.

As for the tune. no doubt they will do it again if your not happy, i don't understand all that tuning stuff but ive spent over 18grand on my engine, and i wouldnt have taken my car there if i did'nt trust the boys @ EFI.

There history specks for itself...

Edited by CLNGMH
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boosted 32.

Was yourse the orange S15?

If so my missus wants it, lol. thing is niiice.

Mate you would have seen my VL there, white/silver VLT calais, GMH.088.

As for the tune. no doubt they will do it again if your not happy, i don't understand all that tuning stuff but ive spent over 18grand on my engine, and i wouldnt have taken my car there if i did'nt trust the boys @ EFI.

There history specks for itself...

yeh u got it...thats my s15 EFI seem to know wot there talking about and doing but after loading up the dyno charts on here every single person is saying its running to lean, not one person has said its half desent....this worries me I will be taking my car back there 2moro to hopefully sort all this out, cheers

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dopped my car off at the tuners this morning had a chat with him and was told he did add a bit more fuel down low and up top before he finished but didnt do another power run , so the graph I got was wot it looked like before he adjusted it. His guna put it back on the dyno 2day and make some adjustments aswell so I will upload the graph at the end of the day and see how we go.....I appreciate everyones input, cheers

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