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R33 Gts25t

Mattw_83

By Mattw_83,
in Engines & Forced Induction

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Mattw_83 Community Regular

Mattw_83

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Posted

Finally results are in.

She punched out 200.2 ATW on 12 psi (although spiking to 12.8) Not bad. But useless.

As soon as i took it out on the street off the dyno and gave it some... Rattling noise. Ping im sure. The 'tuner' was with me at the time, and looked concerned when i stated hey its f**king pinging hard.. he wound back the boost a little and f**ked with the timing.

Still did it at around 11.8psi. He stated you need a decent intercooler... Drove it tonight briefly on the high setting and it didnt ping (very cold out tonight), but it comes on boost in an unstable manner. the dyno readout is pretty wobbly and has a dip higher in the revs. Ill post this when i can. Looks like shit to me. With the standard solenoid grounded permanently it pulled 182kW ATF 9psi and a nice flat curve.. With the Eboost on 12psi its wobbly and looks like shit.

The boost controller is a new Turbosmart EBoost Street. Ive been reading the manuals and its states various options regarding gate pressure and sensitivity. Im sure these could be improved as it spikes considerably. I thought these f**king electronic things didnt spike once set properly.

Seems i now have little to no faith in his abilities or advise so im forced to have it retuned by someone who is trustworthy because i cannot comfortably drive it again without freaking out. Its now set back to setting one with runs around 9psi.

Can anyone please a reputable tuner in Sydney??? I dont care what it costs as long as they know skylines!!! Desperately need some decent advise i dunno who to listen to now

This sucks as this car was absolutely perfect prior and its disappointing to be honest. Its impressed everyone whose worked on it... Im now contemplating ripping it all out and replacing it with the factory setup as before running high mode constantly... Atleast i could rev it and not worry about destroying the motor.... Surely i could run 10-11 psi with a r34 SMIC without troubles??

Current mods

R34 SMIC

3 inch Nismo exhaust

JJR Split Dump/Front

K&N High Flow Panel

Turbosmart EBoost Street....

Cheers,

Matt

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Mattw_83 Community Regular

Mattw_83

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does it have an aftermarket ecu or are they just advancing the timing via the CAS?

Standard ecu. I wouldnt have a clue as to what you would do if you were adjusting timing (im mechanically impaired). I heard him mumble it, open the bonnet and adjust something at the front of the motor?

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PM-R33 Grand Master

PM-R33

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You pulled 200kw@wheels on the stock ECU and a side mount :blush:

The stock ECU should be dumping bulk fuel, how the hell is it pinging?

Adjusting the timing via the CAS is pretty bloody dodgy.

Edited by PM-R33
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W0rp3D Grand Master

W0rp3D

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You pulled 200kw@wheels on the stock ECU and a side mount :blush:

The stock ECU should be dumping bulk fuel, how the hell is it pinging?

Adjusting the timing via the CAS is pretty bloody dodgy.

+1

You need a decent fmic or a bigger side mount, also what are your plug gaps, at that boost level should be 0.8 or 0.9mm

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W0rp3D Grand Master

W0rp3D

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no need to reduce the plug gaps, if your coils are good you can (and i do) run 1.1mm all day every day with any sort of power the stock turbo can give you.

To a point of course, i hit 18psi with my standard turbo and it was breaking down, i now have a hi flow and any more than .85bar and it starts to break down.

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Mattw_83 Community Regular

Mattw_83

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You pulled 200kw@wheels on the stock ECU and a side mount :blush:

The stock ECU should be dumping bulk fuel, how the hell is it pinging?

Adjusting the timing via the CAS is pretty bloody dodgy.

ive never heard pinging before. it was an obvious metallic rattling at revs under load. But the AFR's showed at high revs around 10.5 : 1. Its got me f**ked i just dont understand it enough to get my head around whats happening.

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KiwiRS4T Grand Master

KiwiRS4T

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People are running in excess of 200AWKW with an R34 smic - that's not the problem. You need some way of tuning the motor and just playing with the cas doesn't count.

If you can't afford a Vipec get an SAFC and an SITC and get them tuned on a dyno.

Contact Anthony (Guilt Toy) for a tune and the lowdown on your options (may be others in your area but I wouldn't know).

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Mattw_83 Community Regular

Mattw_83

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Another point is that you should never hear pinging with a standard r33 ecu as when ever the knock sensors pick up knocking (usually it is very conservative) it will retard it.

the sound of knocking, its fairly loud? could be heard over the motor revving? this was

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Mr. Untouchable Experienced

Mr. Untouchable

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is the engine light flashing when the "noise" occurs? if its detonation, and you can hear it whilst driving, inside the car, surely the engine light will be flashing.

its not something silly like being able to hear the EBC solenoid ?

if its detonating, and the engine light is not flashing, maybe check the ecu and see if it has been attacked. maybe its been fiddled with

is you rev limiter at 6800 or 6900 or what ever the stock limter is? what about speed limiter?

i know my car a few year back on the std ecu, anything over 10 psi, Rich & retard would chime in, and it would run like a fat kid through sand.

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Mattw_83 Community Regular

Mattw_83

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is the engine light flashing when the "noise" occurs? if its detonation, and you can hear it whilst driving, inside the car, surely the engine light will be flashing.

its not something silly like being able to hear the EBC solenoid ?

if its detonating, and the engine light is not flashing, maybe check the ecu and see if it has been attacked. maybe its been fiddled with

is you rev limiter at 6800 or 6900 or what ever the stock limter is? what about speed limiter?

i know my car a few year back on the std ecu, anything over 10 psi, Rich & retard would chime in, and it would run like a fat kid through sand.

I didnt notice the engine light. I generally notice and hear every noise and rattle. i dont think ive ever revved it to the limiter. it revved to nearly 7 on the dyno but i didnt hear a limiter. The rattle noise also appeared a little lower in the revs around 4-5 k...

It shows on dyno sheet AFR running down to mid 10's which is apparently rich as hell. my piss weak understanding tells me it shouldnt knock if thats the case? One thing is certain on high mode last night it spikes up to atleast 13 or more. On the low setting it doesnt spike at all. After reading the EBC manual i think i can adjust this with gate pressure etc so it doesnt come on boost as quick etc??

Ill pay anyone who is genuinly capable in there trade and has a good knowledge of skylines. Im tired of pretenders, as this EBC wasnt cheap including the dyno run/tune which was useless as tits on a bull.... what good is 200 ATW if you cant use it safely

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