Was just doing abit of calling around in regards to getting an exede put in my 380GT and was quoted $1650 installed and fully tuned by Silverwater Automotive in nsw...

as i have no knowledge into this kind of thing whatsoever, just wondering if this is a decent price and what kind of performance changes i should expect or if it is even worth doing....

I had one fitted at the head office on the Gold Coast. It was the first auto 380 in Australia to be done and as a development deal I got a good price.
The normal quoted price if it was done there would be around $1550 so your quote is in the ballpark.

I can say it was one of the best improvements to the car. Although it only released a modest amount of extra power - 7KW - the fuel economy improved markedly especially under load (traffic and towing) and the responsiveness also vastly improved.
There is no difference on hot days to performance and I have two maps and usually only run the less powerful one for fuel economy.

yeh, i remember reading somewhere on here that the actual power gain isnt much but the responsiveness is greatly improved which is what im looking for (quick off the lights etc).

i guess what im asking also is if there is any other mod besides the bigger intake,straight thru exhaust (which i already have).. Id love to have it blown but i really wana keep it under $2000.

I had one fitted at the head office on the Gold Coast. It was the first auto 380 in Australia to be done and as a development deal I got a good price.
The normal quoted price if it was done there would be around $1550 so your quote is in the ballpark.

I can say it was one of the best improvements to the car. Although it only released a modest amount of extra power - 7KW - the fuel economy improved markedly especially under load (traffic and towing) and the responsiveness also vastly improved.
There is no difference on hot days to performance and I have two maps and usually only run the less powerful one for fuel economy.

What do you tow and how much difference has it made?

sounds like a lot of money for very little gain,

extractors would give more power for the same money.

Whether it is cost effective is up to what the purpose is long term.

I intend at some stage to upgrade cams and possibly extractors. Chip AFR modification will be highly desirable. With the amount of KM I have covered I believe the chip is cost effective with fuel saved. Extractors will give more power but not save fuel; that comes from cleaning up the conservative fuel map.
Towing a trailer (7X4) gives a figure of 10/100L around the suburbs.

was thinking about extractors too... know of any place in nsw i could call in regards to extractors?

im bound to get both done.... its just which one should come first lol

was thinking about extractors too... know of any place in nsw i could call in regards to extractors?

im bound to get both done.... its just which one should come first lol

Apparantly Liverpool Exhaust make them for RPW but aren't supposed to sell them but an old member (BloodAsp) got his done there. If that fails RPW are your only other choice.

was thinking about extractors too... know of any place in nsw i could call in regards to extractors?

im bound to get both done.... its just which one should come first lol



Got mine from RPW...and they are very well made I must say.

say i was to get the exede first and then extractors would i have to re-tune it?

thanks for all the help by the way....

say i was to get the exede first and then extractors would i have to re-tune it?

thanks for all the help by the way....

If you want to get the most out of them yes but there wouldn't be a lot of difference. Personally if you are gonna stop your mods at extractors I would get the Exede after that to get the tune spot on.

yeh that might be the go...

cheers.

got quoted $1300 supplied and fitted for extractors from liverpool exhaust. the guy said with a good exhaust system gains of 10% can be achieved.

got quoted $1300 supplied and fitted for extractors from liverpool exhaust. the guy said with a good exhaust system gains of 10% can be achieved.

I hope that's for a full system including free flow rear muffler, otherwise it's a bit steep. Throw in a hi-flo cat and it would be a decent price.

10% gain for extractors & full system sounds about right, maybe a little more with a hi-flo cat. And a bit more again if you also open up the intake by fitting the 90mm Galant snorkel and cut or remove the lower intake resonator. But you can expect only 5% (approx 9kw ATF) at best for extractors only.

You can get the same extractors from RPW for around $700 delivered, and you should be able to swing a deal with an exhaust shop to fit them for no more than $300.

KJ.

But you can expect only 5% (approx 9kw ATF) at best for extractors only.

If it were any other car I'd agree with you but the 380 has the two cats integrated into the standard manifold so extractors give you a much bigger gain than over a standard exhaust manifold.
Foozr and I had at one stage the same mods except for the extractors and our outputs were measured on the same dynos. The difference was 17KW. That's a lot of extra power.

Yep I'd agree with that, the suggested amount is 20KW at the flywheel on a 380 due to loosing the restrictive precats.

Knotched & Fooz,

I agree I probably underestimated the power gain by fitting extractors with no other mods.

But I'm still not sure it would be as much as 20kw atf, I'm thinking it would be closer to 11 or 12kw, based in the following calculations from my car:

Stock output 175kw atf
Estimated drivetrain loss for a manual = 12% = 21kw = 154kw atw
My dyno figure = 183kw atw = 29 kw improvement over stock
Made up of guestimated 10kw due to extractors, 10kw due to other exhaust mods and 9kw due to intake mods.

Of course these are just guestimates, the split could be a fair bit different, but it 'feels' about right to me.

So if I'm in the ballpark, 10kw atw due to extractors, with 12% drivetrain loss = 11.36kw atf.

But we're getting a bit off topic here, this thread is meant to be about the benefits of fitting a ChipTorque Exede.

Steve Knight still has my Exede and I'll get it fitted & tuned one day when it cools down a bit and Steve isn't so busy, and then we'll see some before and after figures, albeit on a car with extractors, exhaust and intake mods instead of stock.

KJ.

No probs about getting off topic.... Its all been very helpful.

I think im going to order the extractors from RPW (which i can get shipped over here for nothing, which helps) and find a shop that will fit them for me. I think ill then get the exede afterwards, which, from what iv been reading would be the better option.

Maybe one might turn up on here for sale..... :p

Knotched & Fooz,

I agree I probably underestimated the power gain by fitting extractors with no other mods.

But I'm still not sure it would be as much as 20kw atf, I'm thinking it would be closer to 11 or 12kw, based in the following calculations from my car:

Stock output 175kw atf
Estimated drivetrain loss for a manual = 12% = 21kw = 154kw atw
My dyno figure = 183kw atw = 29 kw improvement over stock
Made up of guestimated 10kw due to extractors, 10kw due to other exhaust mods and 9kw due to intake mods.

Of course these are just guestimates, the split could be a fair bit different, but it 'feels' about right to me.

So if I'm in the ballpark, 10kw atw due to extractors, with 12% drivetrain loss = 11.36kw atf.

But we're getting a bit off topic here, this thread is meant to be about the benefits of fitting a ChipTorque Exede.

Steve Knight still has my Exede and I'll get it fitted & tuned one day when it cools down a bit and Steve isn't so busy, and then we'll see some before and after figures, albeit on a car with extractors, exhaust and intake mods instead of stock.

KJ.

I think your figures are all whack. I would try more like 185kw for the standard motor and something closer to 15% for drivetrain loss.

I think your figures are all whack. I would try more like 185kw for the standard motor and something closer to 15% for drivetrain loss.

Disciple,

I'm pretty sure that the figure you quote of 185kw is for a 6G75 motor without the restrictive pre-cats in the stock exhaust manifolds, with a freer flowing muffler than stock, and possibly with the 90mm intake snorkel. Going by memory, I think Alan J and his mate Graham advised that 185 to 190kw is what the factory 6G75 should have made had MMAL not 'strangled' it to meet Euro 3 emissions standards & drive by noise standards.

I used a figure of 12% drivetrain loss because that is what Steve Knight reckoned is right for a 3rd gen Magna manual on his dyno, and he presumed the same would apply to a 380 manual as it uses a similar motor & gearbox. Mine was the first manual 380 he ever dynoed, and it still may be the only one. But for all I know you could be right and the drivetrain loss might be closer to 15%. If so, the gains from my mods would be more than in my calcs, and the gain from fitting extractors would be a bit more than 11 or 12 kw atf, maybe 15kw atf.

Then again it is well documented that the 6G74 (as fitted to a FWD not an AWD) gains very little from just fitting extractors, as the stock exhaust manifolds aren't too bad.

So based on that the pre-cats on a 6G75, by themselves, are robbing it of somewhere between 10 and 20kw atf.

I still reckon that a loss of 20kw is overstating things a bit, and it would be no more than 15kw.

KJ.

Yep I'd agree with that, the suggested amount is 20KW at the flywheel on a 380 due to loosing the restrictive precats.



On that basis....If I belt the two cats with a big hammer, pull all the crap out and make them a straight through pipe...

Then disable the check light on the dash I should get another 20 kw atf.


who needs extractors? and it will still look legal for warranty...


Sounds like a plan....:happy:

On that basis....If I belt the two cats with a big hammer, pull all the crap out and make them a straight through pipe...

Then disable the check light on the dash I should get another 20 kw atf.


who needs extractors? and it will still look legal for warranty...


Sounds like a plan....:happy:

Do IT! lol

But seriously, I wouldnt think the removal of the 2 cats would be worth 20kw atf on their own, maybe more like 10kw.

IMO, this what I think:
Stock restricted 6G75- 175kw
Headers- 7kw
Removal of 2 Cats- 10kw
Replace 3rd Cat with high flow- 3kw
90mm intake- 4kw
Straight through muffler- 8kw

Total- 207kw atf or around 182.16kw atw in manual (12% drivetrain loss)

or 21% drivetrain loss for auto 163.53kw atw.

Also, to keep things on topic, I would get the headers over the Chiptorque, then get it tuned later on. :happy:

Do IT! lol

But seriously, I wouldnt think the removal of the 2 cats would be worth 20kw atf on their own, maybe more like 10kw.

IMO, this what I think:
Stock restricted 6G75- 175kw
Headers- 7kw
Removal of 2 Cats- 10kw
Replace 3rd Cat with high flow- 3kw
90mm intake- 4kw
Straight through muffler- 8kw

Total- 207kw atf or around 182.16kw atw in manual (12% drivetrain loss)

or 21% drivetrain loss for auto 163.53kw atw.

Also, to keep things on topic, I would get the headers over the Chiptorque, then get it tuned later on. :happy:

Braedz,

Guess what?

You've pretty much listed my mods (except for dual exhaust but that makes SFA difference I reckon, and a couple of minor intake tweaks) and you end up with 182.16kw atw, and my dyno result was 183kw atw.

Seems the the main area of debate is how much drivetrain loss there is for a manual, is it 12%, 15%, whatever.

Problem is it's hard to tell even with a stock motor as there is so much variance from one dyno to another and from day to day on the same dyno. And then there's the stock output figure of 175kw atf which in real life seems to vary from 165 to 185 depending on who you talk to, but IMO it's probably around the 165 to 170 range for most 380 motors.

KJ.

On that basis....If I belt the two cats with a big hammer, pull all the crap out and make them a straight through pipe...

Then disable the check light on the dash I should get another 20 kw atf.


who needs extractors? and it will still look legal for warranty...


Sounds like a plan....:happy:

You might get half but stock exhaust manifolds still aren't tuned length extractors :nuts:

Just kidding around Fooz...:)

As someone who has dynoed his car more than the average I would hesitate to put hard and fast values on mods except to say this should free up more KW than that.
As has been pointed out the engine output varies quite a bit to start with and the only thing guaranteed is when you have dynoed your car and can point to a real gain above what you had before.

I stand by my claim that the chip not only improves fuel economy but make the car feel far more responsive under any conditions - obviously those points got lost.

Not lost at all mate, I hear you loud and clear.

So thanks for the info.