Jump to content
SAU Community

Recommended Posts

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 ??

post-55737-1269957743_thumb.jpg

Edited by manda23
Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/
Share on other sites

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 by turbo x-trail
Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5158509
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5158672
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5158858
Share on other sites

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?

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5158871
Share on other sites

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...

handlingtable.gif

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5159125
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5159983
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5160002
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5160056
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5160150
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5160161
Share on other sites

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

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5160175
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5160264
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5160267
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/314423-what-next/#findComment-5160478
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • And finally, the front lower mount. It was doubly weird. Firstly, the lower mount is held in with a bracket that has 3 bolts (it also acts as the steering lock stop), and then a nut on the shock lower mount itself. So, remove the 3x 14mm head bolts , then the 17mm nut that holds the shock in. From there, you can't actually remove the shock from the lower mount bolt (took me a while to work that out....) Sadly I don't have a pic of the other side, but the swaybar mounts to the same bolt that holds the shock in. You need to push that swaybar mount/bolt back so the shock can be pulled out past the lower control arm.  In this pic you can see the bolt partly pushed back, but it had to go further than that to release the shock. Once the shock is out, putting the new one in is "reverse of disassembly". Put the top of the shock through at least one hole and put a nut on loosely to hold it in place. Put the lower end in place and push the swaybar mount / shock bolt back in place, then loosely attach the other 2 top nuts. Bolt the bracket back in place with the 14mm head bolts and finally put the nut onto the lower bolt. Done....you have new suspension on your v37!
    • And now to the front.  No pics of the 3 nuts holding the front struts on, they are easy to spot. Undo 2 and leave the closest one on loosely. Underneath we have to deal with the wiring again, but this time its worse because the plug is behind the guard liner. You'll have to decide how much of the guard liner to remove, I undid the lower liner's top, inside and lower clips, but didn't pull it full off the guard. Same issue undoing the plug as at the rear, you need to firmly push the release clip from below while equally firmly gripping the plug body and pulling it out of  the socket. I used my fancy electrical disconnect pliers to get in there There is also one clip for the wiring, unlike at the rear I could not get behind it so just had to lever it up and out.....not in great condition to re-use in future.
    • Onto the rear lower shock mount. It's worth starting with a decent degrease to remove 10+ years of road grime, and perhaps also spray a penetrating oil on the shock lower nut. Don't forget to include the shock wiring and plug in the clean.... Deal with the wiring first; you need to release 2 clips where the wiring goes into the bracket (use long nose pliers behind the bracket to compress the clip so you can reuse it), and the rubber mount slides out, then release the plug.  I found it very hard to unplug, from underneath you can compress the tab with a screwdriver or similar, and gently but firmly pull the plug out of the socket (regular pliers may help but don't put too much pressure on the plastic. The lower mount is straightforward, 17mm nut and you can pull the shock out. As I wasn't putting a standard shock back in, I gave the car side wiring socket a generous gob of dialectric grease to keep crap out in the future. Putting the new shock in is straightforward, feed it into at least 1 of the bolt holes at the top and reach around to put a nut on it to hold it up. Then put on the other 2 top nuts loosely and put the shock onto the lower mounting bolt (you may need to lift the hub a little if the new shock is shorter). Tighten the lower nut and 3 upper nuts and you are done. In my case the BC Racing shocks came assembled for the fronts, but the rears needed to re-use the factory strut tops. For that you need spring compressors to take the pressure off the top nut (they are compressed enough when the spring can move between the top and bottom spring seats. Then a 17mm ring spanner to undo the nut while using an 8mm open spanner to stop the shaft turning (or, if you are really lucky you might get it off with a rattle gun).
    • You will now be able to lift the parcel shelf trim enough to get to the shock cover bolts; if you need to full remove the parcel shelf trim for some reason you also remove the escutcheons around the rear seat release and you will have to unplug the high stop light wiring from the boot. Next up is removal of the bracket; 6 nuts and a bolt Good news, you've finally got to the strut top! Remove the dust cover and the 3 shock mount nuts (perhaps leave 1 on lightly for now....) Same on the other side, but easier now you've done it all before
    • OK, so a bunch of trim needs to come off to get to the rear shock top mounts. Once the seat is out of the way, the plastic trim needs to come off. Remove 2 clips at the top then slide the trim towards the centre of the car to clear the lower clip Next you need to be able to lift the parcel shelf, which means you need to remove the mid dark trim around the door, and then the upper light trim above the parcel shelf. The mid trim has a clip in the middle to remove first, then lift the lowest trim off the top of the mid trim (unclips). At the top there is a hidden clip on the inner side to release first by pulling inwards, then the main clip releases by pulling the top towards the front of the car. The door seal comes off with the trim, just put them aside. The the lighter upper trim, this is easy to break to top clips so take it carefully. There is a hidden clip towards the bottom and another in the middle to release first by pulling inwards. Once they are out, there are 3 clips along the rear windscreen side of the panel that are hard to get under. This is what the rear of the panel looks like to assist:
×
×
  • Create New...