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Heya all, i've not had my Gtst long, and i'll be testing it next week, and wanted to get some idea of the figures i'd *expect* to see, within reason.... Afaik, it's not been tuned/touched etc since JustJap originally did the mods in Jan 2003

I'm still very much learning about 'lines - any recommended mods to improve from this point?

It's a '96 S2 Gtst with the following mods:

Mines Ecu (used)

T04 (recon)

Nismo Fuel Reg

3" Cat Converter

What I can guess as 'normal' turbo ducting etc..

(Pics : http://212.42.1.197/Zeb/line/bonnet1.jpg - http://212.42.1.197/Zeb/line/bonnet2.jpg - http://212.42.1.197/Zeb/line/line.jpg )

Tia -

Zeb

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After a bit of digging, and some great help from JustJap, (actually remembered my line :-D )

It's a T3/T4 Hybrid, with enlarged/bored out sections (Front and back), to increase flow. (Steel rather than ceramic)

He wasn't sure of exactly what size, and i'm not pulling it out ;-)

Hope that helps

Its 99% likely that the Mines ECU is set up for japanese conditions IE 100+octane fuel and way colder conditions

So running 98 which is the best octane we have here, at high boost and high rpm will see some problems

My advise;

Before doing anything with/to the car, put it on a dyno and see if theres any problems

I have seen about 4 Mines ECU's and all were very rich and not particularly aggressive in their tune. No speed cut was good, raised rev limit was a waste of time, boost cut removed was good, otherwise not such a good thing. :thumbdwn:

ok... done the dyno, am feeling a little dissapointed, as was expecting more.....

Max 227.8 HP :-(

I'll scan the plots in tomorrow, and hopefully SydKid etc could decipher it for me ;-)

The good news is that the power curve is pretty linear, (excluding end drop off )

It does look like Sydkid was right one one side, about top end revs on the ECU lacking, but.. it was running a little lean according to them....

Will get the scans done tomorrow...

I could be missing something here, but it looks pretty good for a start... (if on the low side)

i got a 141rwkw (189HP) with stock series 2 including stock exhaust and boost. You should be getting up near 180-180 at least with aftermarket turbo and an ecu chip. what exhaust do you have? it just says 3" cat. what boost are u running the t04 at?

Here's the plots :

Plot & Torque Showing  

Plot & Mixture ??  

Can anyone help with translating these plots into something I can readily understand, so I can look to improve this?

Excuse me if I sound like a complete noob, I am  :Oops:

Typical Mines ECU, stable A/F ratios but simply too rich. They need to be between 12 and 12.5, not mid 11's. The ignition timing will be similar, solid but too retarded. Did you get a boost graph?

Thanks for the comeback SydKid, I'll pop in to them tomorrow and see if they did do one.

The two graphs were all they gave me.

If I was looking to up the overall power etc, would I be looking at changing the ECU & Retuning? or would it be a lot more involved?

(I'd love to get to the 350 *ish* HP, but i have no idea if that's a realistic goal with the current setup. )

If so, what sort of ECU would be idea? Something like a Wolf3d?

Tbh, I've got about 5-10K I could throw at the car if needed.

Power FC would be my choice and with a decent intercooler and fuel pump there is no reason why 225 rwkw (300 rwhp) would not be easily obtained. With larger injectors and an AFM upgrade (to Z32) 250-260 rwkw (350 rwhp) is there for the taking. There are pleny of threads on this sort of upgrade path, do a search, I am sure you will find all that you need to know. :cheers:

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