What Next ?

[manda23]

So i brought the car it came with full fujitsubo exhaust recaro seats , 19 "advan 151C chrome wheels , impul ecu and a few bits and pieces.

I brought the k&n filter , carbon fibre z-tube and the motordyne spacer and got them installed. Did i feel much increase ? If i did its not enough.

So doing some minor research i workouted the best gains im going to get out of this is to get a re-tune.

Now to find someone to re-tune a IMPUL ecu , is a headache and a half . So i call pj at powertune . no idea try silverwater automotive. Called silverwater The guy seems helpful enough says bring it down and if i can re-tune it for you , should be looking at about a gain of 20kws . How much is that going to costs me i ask ?

Around $1100. So im thinking $1100 for a gain of 20kws , il pay that. But my question is others of you out there have the impul ecu , what have you's done with it. Did you find a tuner to tune it. If so what did they charge ?

Is $1100 the going rate for a tune. Is there any other options i have maybe spending the money towards something else and getting better results?? I dont want to turn back time 20kws suits me fine .

Whats everyone else doing to get a little more from their V's ??

Edited March 30, 2010 by manda23

[StealthX]

$1100 is pretty steep for just a tune.

considering there's already a decent tune on the computer...

all they should need to do is wack it on the dyno and adjust some AFRs and timing.

MAX $300 i rekon...

[manda23]

$1100 is pretty steep for just a tune.

considering there's already a decent tune on the computer...

all they should need to do is wack it on the dyno and adjust some AFRs and timing.

MAX $300 i rekon...

Yes but who knows how to tune it ?

[StealthX]

That's true...

I still cant see how if gonna be THAT involved that its gonna cost $1100...

maybe those computers coupled with that engine is a big mystery...

might even be cheaper to install and tune something else!

My EMS stinger -> X-trail turbo cost me $1200... I'm sure there's cheaper standalones out there...

[edit]: that price included sending the ecu to melbourne (from perth) for a software upgrade and an hour or so on the dyno...

Edited March 30, 2010 by turbo x-trail

[Touge Kyousou]

They charge $1100+ for a tune because they're the only garage in Syd (or Aus as far as i know) that can actually flash oem v35 ecu's and adjust ignition, afr, rev limit, speed limit etc. To be honest, it's not too bad...look at how much an ECUtek flash costs for a wrx/sti which is almost the same as what silverwater will be doing.

My understanding is they have to remove the oem ecu, soak it in a solution to remove a chip, then replace or flash (or do something with it lol), pop it back on the pcb board, reinstall in car then chuck it on dyno and tune for your mods.

However, 20kw atw gain is damn optimistic. I really doubt you'll see that much at all. The impul ecu will likely be running an aggressive tune already so there won't be much margin/headroom to improve upon and gain power.

Oh, i gained 6rwkw from the SAS tune (and was quite happy with it as it remove my pinging as well). From what i understand, they've seen around 10rwkw gain on some Zs when flashing the ecu.

[Haxorz]

Yeah, unfortunately the next lot of gains don't come easy or cheap.

Around $5k US for a supercharger kit from the US.

Finding someone to fit and tune that though is probably harder then finding someone to tune your ECU! Good news is you can benefit from the cheaper US price / economies of scale. If that thing were developed locally / custom it would be like $15k, plus you'll have some knowledge knowing it's been used successfully in teh US.

Huge gains though, if you wanna go you gotta blow.

Puts it into R35 GTR power range.

[Haxorz]

Hey guys - is it worth fuel tuning the V36?

On one hand it's used to Jap fuel.

On the other, isn't the ECU smart enough to figure this out on the fly? Even if you sacrifice a few kw's you keep the stock smoothness?

Or are these things really rough, flat spots, etc and can benefit a lot from it.

Also, what's the best way? Piggy back ECU with the V36's? No-one knows how to flash these things surely?

[Haxorz]

I've also been told the grounding kits make a big difference to responsiveness.

Can anyone here comment?

Also a front sway bar makes a big difference to handling. More power you can hit a corner at more power out of it. It's like getting a power upgrade.

[Kam-80]

Hey guys - is it worth fuel tuning the V36?

Run it on a dyno and check AFRs if the car is running rich in the top-end then you know they'll be gains. It's a small investment to be able to see what sort of gains you might be able to net.

Also a front sway bar makes a big difference to handling. More power you can hit a corner at more power out of it. It's like getting a power upgrade.

I think you have to be a bit more hollistic with suspension...most cars are set up to understeer from factory (safer than oversteer) so if you change just the front sway bar the likely hood is that the car will understeer more. Better that you take the car for a punt and decide how you want to affect handling characteristics from there. Handy chart attached...

[fcruz3r]

gotta love mechanics who without even knowing the current state of tune can optimistically say 20kws gain

[manda23]

gotta love mechanics who without even knowing the current state of tune can optimistically say 20kws gain

I rang pulse racing today. Paul there suggested using an interceptor called halteck or halatek which will set me back $1600 ? Who knows what that is . I might just stick with the impul and see what happens at silverwater.

[xscape237]

I have the same IMPUL ecu in my car.

I personally wouldnt bother with a retune. Think of it this way - if there is only once place in SYD who would do it, then you will basically be stuck with them forever.

If you grab something like an e-manage, haltech, or other generic piggy back solution, you'll be able to get it tuned basically anywhere. Important if you ever do any more mods in the future.

[StealthX]

If you grab something like an e-manage, haltech, or other generic piggy back solution, you'll be able to get it tuned basically anywhere. Important if you ever do any more mods in the future.

+1

[xscape237]

Expanding on my comment above - you may not realise that while a haltech or e-manage will set you back maybe over $1k now... each retune in the future will cost you A LOT less, perhaps only a few hundred bucks.

Where as with the IMPUL you'll be paying $1k each time you want a remap.

[Touge Kyousou]

No, once flashed at SAS, a retune is just several hundred as well...i know because my V needs a retune after a change.

HOWEVER, you will be stuck with one tuner only (being SAS). But i kinda like the fact i haven't introduced a piggyback system that wires in to the main engine controlling unit and no cop/insurance trouble.

Pros and cons to each i'd say.

[manda23]

I have the same IMPUL ecu in my car.

I personally wouldnt bother with a retune. Think of it this way - if there is only once place in SYD who would do it, then you will basically be stuck with them forever.

If you grab something like an e-manage, haltech, or other generic piggy back solution, you'll be able to get it tuned basically anywhere. Important if you ever do any more mods in the future.

what mods have you done with it ? Have you tested it to see if it does what its suppose to do ? i.e increase the rev limiter and speedo . If I change it to the haltech or e-manage what results will i get and what should i be expecting to pay.

I dont want to do anything further just an extra 10-15kwrw is all i need.

[manda23]

No, once flashed at SAS, a retune is just several hundred as well...i know because my V needs a retune after a change.

HOWEVER, you will be stuck with one tuner only (being SAS). But i kinda like the fact i haven't introduced a piggyback system that wires in to the main engine controlling unit and no cop/insurance trouble.

Pros and cons to each i'd say.

I wasnt aware if i got a halteck its against the law . And im thinking if i do get the impul ecu tuned il fork out the $1k and be done with it. With the halteck for $1600 im adding extra's i dont want to do too much extra to the car and then il be wasting the impul.

Can i send it to japan and they tune it and i get it back i have contacts there ? i think it will only costs a few hundred dollars im sure heaps of tuner in jap know what to do

[xscape237]

what mods have you done with it ? Have you tested it to see if it does what its suppose to do ? i.e increase the rev limiter and speedo . If I change it to the haltech or e-manage what results will i get and what should i be expecting to pay.

Yep, it sure does. My nismo speedo was showing 230km/ph down the front straight at phillip island, but its a bit out of whack so real life speed was closer to 210. Rev limit is something like 7000rpm.

I'm pretty sure that if you got an e-manage or haltech that you would still keep the IMPUL unit in place. I haven't had my car tuned so I can't comment on what results to expect.. But I would be surprised to see anything more than 10kw extra peak power.

[xscape237]

what mods have you done with it ? Have you tested it to see if it does what its suppose to do ? i.e increase the rev limiter and speedo . If I change it to the haltech or e-manage what results will i get and what should i be expecting to pay.

Yep, it sure does. My nismo speedo was showing 230km/ph down the front straight at phillip island, but its a bit out of whack so real life speed was closer to 210. Rev limit is something like 7000rpm.

I'm pretty sure that if you got an e-manage or haltech that you would still keep the IMPUL unit in place. I haven't had my car tuned so I can't comment on what results to expect.. But I would be surprised to see anything more than 10kw extra peak power.

[manda23]

Yep, it sure does. My nismo speedo was showing 230km/ph down the front straight at phillip island, but its a bit out of whack so real life speed was closer to 210. Rev limit is something like 7000rpm.

I'm pretty sure that if you got an e-manage or haltech that you would still keep the IMPUL unit in place. I haven't had my car tuned so I can't comment on what results to expect.. But I would be surprised to see anything more than 10kw extra peak power.

10kw for that kind of money. Maybe i might look into something else then. Im going to take it to silverwater automotive and see what they saythey can do with the impul ecu .

Thanks for the head up with the speedo and rev limiter i might actually give it a go sometime.