LS1 Adventra Economy

[emufriedchicken]

as everyone is well aware the adventra with the LS1 engine gives very ordinary fuel economy due to a several means of reasons.

I am looking to improve this on my LX8 .I under stand that this wagon will never get the economy of lighter 2 wheel drive LS1 powered cars but I want to get as close as economically possible.

If any one has any ideas and roughly what costs would be incurred I would be really grateful. The only mods done so far is a K&N filter and monaro cai fitted. Also the exhaust has been modified but to how far i am not sure???

I have heard about edit and mafless tuning but am unsure of what these are and if they increase or decrease the fuel usage.

cheers from WA

[pah]

Hi EFC,

You might find that a PCM edit saves you maybe 2 - 3 L / 100 kms around town.

Have a chat with Daniel at Chipmaster. He's based in WA too. He's a forum sponsor so you should pick up his details from this site.




PAH

[Nursing_Mother]

as everyone is well aware the adventra with the LS1 engine gives very ordinary fuel economy due to a several means of reasons.

I am looking to improve this on my LX8 .I under stand that this wagon will never get the economy of lighter 2 wheel drive LS1 powered cars but I want to get as close as economically possible.

If any one has any ideas and roughly what costs would be incurred I would be really grateful. The only mods done so far is a K&N filter and monaro cai fitted. Also the exhaust has been modified but to how far i am not sure???

I have heard about edit and mafless tuning but am unsure of what these are and if they increase or decrease the fuel usage.

cheers from WA

Mate i have a one tonner and it gets no better than 20lt/100kms,infact often worse,i know for a fact the utes and sedans better that,but i have my tonner down to 1550kgs(yeah lighter than a ute or sedan)but i still get crappy economy(at least acording to the Gauge)so maybe thats just the way it is.P.s i have a mafless tune/otr and 4:11 gears but believe it or not it was WORSE with the 3:07's and no edit:errr:

[pah]

I get somewhere around 13 - 15 L / 100 km's around town. It's less than that if I get caught in very heavy inner city traffic, but in the Sydney suburbs (including peak hour traffic) 13 - 15 L / 100 km's . I'm using 98 RON PULP to get this of course.

On the open road, I expect and get fuel economy in the 8 - 9 L / 100 km's range. I crack the sads if economy drops into the 9's on divided open road - it's invariably 8 point something. Economy drops into the 9's if I'm on undivided road and one the gas to pass trucks etc. Once again, these figures are achieved buring PULP. Economy drops off if I buy 91 RON ULP (so why use it?).

If you do a search on this web site, you might find a reference to LPG conversions that include fuel injection rather than a gas carby. Apart from their high cost, I don't know much about them.

Try this site: http://www.parnell.com.au/index.php?option=com_frontpage&Itemid=1



PAH

[brh26]

Get a pcm edit. You can get a 3l per 100km reduction on the freeway as well as around town.

[Gareth@Willall]

Mate i have a one tonner and it gets no better than 20lt/100kms,infact often worse,i know for a fact the utes and sedans better that,but i have my tonner down to 1550kgs(yeah lighter than a ute or sedan)but i still get crappy economy(at least acording to the Gauge)so maybe thats just the way it is.P.s i have a mafless tune/otr and 4:11 gears but believe it or not it was WORSE with the 3:07's and no edit:errr:

You do beat the **** out of it :burnout:

[Nursing_Mother]

dude you must pedal that thing around like a granny,i bought mine to punish and i do so everyday,i cant sleep at night if i have not bounced the tonner off the rev limiter that day,,,,infact only yesterday i had some punk in a V6 vectra thinking he was Juan-Manuel Fangio try to beat me while i was on the way home from work,you should have seen his face as i flew past him doing 6500rpm in 2nd(pretty much blew all the bling the little pappi gulper was wearing right off).....Cheers for the tune LS1 edit.com.au:thumbsup: :burnout:

[emufriedchicken]

a 3l/100 km improvment is pretty good i reckon out of a edit tune. Also i have changed the engine cover from turtle shell to the VZ HSV covers to cut down on heat soak in the engine. not sure if this will improve the economy or do anthing at all. I was just told to do it because heat soak can be a problem.

I see from the threads that PULP seems to make the engine use less fuel too....At a 10c per litre premium over standard ULP in WA where I live it will cost me an extra $7.50 to fill up. If the engine doesnt use as much fuel the cost will not be prohibitive....food for thought???

[Marco]

Does anyone have real world figures for the Adventra V6? Sounds like with an edit, the Adventra V8 must run the V6 close for economy.

[Y2kGoofball]

righteo while we're on the topic

The below pic was taken just then.

www.v8superforum.com/adventra/reading.jpg

Looks bad hey

But hang on, thats the fuel consumption after the Adventra spent 4 hours total yesetrday towing that 2 tonne boat in the below picture

www.v8superforum.com/adventra/boat.jpg

How do you get 20 ltrs / 100k plus figures (for V6 Adventra I mean) when we cant even get it above 18ltrs / 100Ks towing a 2 tonne boat up the F3 freeway on a stock standard Adventra SX6?

I realise that for once thats not what the topics about, but what I'm getting at is before we head down that way of the poor performance of the V6 Adventra maybe we need to start looking at the facts.

I get anywhere from 10L/100 to 13L/100 depending on the peak hour run of the week, and trust me, I get stuck in the middle of it, which is pretty bloody good when compared to some of the readings I hear floating around.

Just thought I'd throw my 2 cents in. FYI yes I can take a pic this time next week to show this weeks fuel consumption if youd like. We're running 95ron fuel too when we get these figures, none of this optimax or optimax extreme stuff!!

[who_me_?]

Does anyone have real world figures for the Adventra V6? Sounds like with an edit, the Adventra V8 must run the V6 close for economy.

Ok - I have 17,000kms up in my LX6 since last July. The average since day 1 is 12.4l/100kms. On a country run I see about 11l/100kms and around town it can go to 13-14...

Pity the V8 is a gonner now. If they had added ESP and a newer auto together with the 6.0Ltr V8 I would have considered changing to a LX8 (RIP)...

[Y2kGoofball]

spot on!! Thats the figures I'm looking at.

Nothing annoys me more then reading the Adventra 6 does 20L/100K's +

I get 13-14 in Sydney peak hour. Ive had it down to 10 the last few weeks with no traffic on the roads. We havent done a country trip without the boat attached but even then it averages around the 16 or 17L mark.

[Ken]

We have 2 Adventuras in the fleet and they both get 12-15 lt/100 daily driving to & from work.
Mods are
19" wheels (for big brakes)
LS112 superchargers (~240awkw)
PCM edits

[pemier]

Mate i have a one tonner and it gets no better than 20lt/100kms,infact often worse,i know for a fact the utes and sedans better that,but i have my tonner down to 1550kgs(yeah lighter than a ute or sedan)but i still get crappy economy(at least acording to the Gauge)so maybe thats just the way it is.P.s i have a mafless tune/otr and 4:11 gears but believe it or not it was WORSE with the 3:07's and no edit:errr:

Geez mate as you know I also have VY2 tonner with a mafless tune from Martin and I must say I dont baby the thing at all and I still manage to get around 14 lp/100 so you must be beating the hell out of yours:thump:

[Y2kGoofball]

what PCM edits have they had done?

Just curious ... you learn by asking :burnout:

[CharlieDontSurf]

Just out of interest guys. Metropolitan ambulance service (Victoria) is trialling an AWD Territory(4A) and Aventra LX6 for use as single respeonder vehicles. These spend approx 50% of the time with lights and sirens on accelerating hard and the rest driving in normal traffic.
Guess what is getting better economy??
The Aventra. I dont know its figures but have personally seen the Territorys average fuel consumption of 29lt/100km. The guys driving it were complaining how often they had to fill it up. It uses heaps more than the Subaru XT's they are replacing.

[chris_vysv8]

I get somewhere around 13 - 15 L / 100 km's around town. It's less than that if I get caught in very heavy inner city traffic, but in the Sydney suburbs (including peak hour traffic) 13 - 15 L / 100 km's . I'm using 98 RON PULP to get this of course.

On the open road, I expect and get fuel economy in the 8 - 9 L / 100 km's range. I crack the sads if economy drops into the 9's on divided open road - it's invariably 8 point something. Economy drops into the 9's if I'm on undivided road and one the gas to pass trucks etc. Once again, these figures are achieved buring PULP. Economy drops off if I buy 91 RON ULP (so why use it?).

If you do a search on this web site, you might find a reference to LPG conversions that include fuel injection rather than a gas carby. Apart from their high cost, I don't know much about them.

Try this site: http://www.parnell.com.au/index.php?option=com_frontpage&Itemid=1



PAH
pah is your SV8 manual or auto? Mine is a stock auto VY1 SV8, and even using BP Ultimate I can't do any better than about 10.3l/100km on the freeway (eg Pacific motorway down to the Gold Coast which is 4 lanes each way nice and smooth running)

[large]

I have an adventra lx8. It has twin 2 1/2 cat back and an edit.
Highway between 11.7 and 12.3l/100km 5 people in the car and the back full of crap.
City around 15-16l/100.
No worse than my vxss.

Before edit you can add 3-4l/100km on both.

Goes alot harder than stock now as well.

[Fredo]

Bloody hell - what was all the fuss about fuel economy not that long ago!!!

Thats the same economy I get from my Mitsubishi Challenger 3.0lt V6. The Adventra and Challenger are probably similar weight, however the Adventra is definately a bigger car overall.

I would not be complaining about economy like that from a big V8 wagon. I'm tossing up between either the V6 or V8 Adventra. The V6 has the 5 speed option plus a couple more safety features, but you can't beat a V8 can you!!!

FREDO

[russlee29]

as everyone is well aware the adventra with the LS1 engine gives very ordinary fuel economy due to a several means of reasons.

I am looking to improve this on my LX8 .I under stand that this wagon will never get the economy of lighter 2 wheel drive LS1 powered cars but I want to get as close as economically possible.

If any one has any ideas and roughly what costs would be incurred I would be really grateful. The only mods done so far is a K&N filter and monaro cai fitted. Also the exhaust has been modified but to how far i am not sure???

I have heard about edit and mafless tuning but am unsure of what these are and if they increase or decrease the fuel usage.

cheers from WA

Hi,
Have just returned from trip with Adventra CX8 towing Jayco Camper trailer fully loaded from Melb to Nowra via Hume up and Coast home, a little over 2000 K's all up and returned 16.5l/100 for total trip.
Have Difillippo headers, opened up cats, stock zorst from cat back, GTS maf , K&N and edit.
Around town with lots of short trips by the wife ave 16-18 l/100. Best ever was prior to edit on a country run 900km,s 13l/100 although driving was not looking to get good economy.

[Y2kGoofball]

asI said, my readings are for a bog standard base model SX6, the lowest of the Adventra models.

BTW its Wednesday night and I still havent had to fill it up since it towed the boat last Friday, I'm ready to put some juice into it tomorrow morning finally. Keep in mind it did a 4 hour trip total towing the boat at 17.4 Ltrs/100 K or something ... we filled up just before we hooked the boat trailer to the car, so its done the boating trip and the to and from work trip.

Its good to see people starting to calm down about the fuel consumption, especially on the V6, but I think its a bit too late unfortunately and I get this feeling the Adventra is on its way out in due time ... especially after the hype the S3X copped at the motor show.

Still everyone thats ever seen our Addy or has driven it have changed their thoughts on it, and as I said ours is just the basic base model, thats before you start adding stuff seen on the CX6 and above such as active select, leather seats ....

[BOF crewman X8]

I have a Vy2 Cross8 with edit, best thing you can do, for the people who read about this and how the EDIT saves fuel and doubt it (like I did) I can assure you it's for real!!

The X8 went from about 13-15ltr per 100 on the highway to about 10.5-12.5 (on the trip computer) however after a recent trip of which we left full and then filled up 330kms later I could only get 36lts into the tank, but the trip computer said we had consumed 42ltrs so I got into the custom mode and did the job, now it's around 10.5lt all the time (115-120kmh cruise control on).

When people ask me how much fuel it uses, I just tell them about 28mpg or as much as you want it to use if you drive it hard. SIMPLE! :nyuk:

[fishframe]

VYII SS Manual - 16 to 18 L's per 100k's around town on PULP and 8.9L's per 100k's on highway at 95kph [10.2L's per 100k's at 105kph].

Small changes in revs [500rpm to 1000rpm] and gear selections make significant differences.

p.s. I do 80,000 km's per year and this is my 3rd LS1.

[bos77]

VY CX8 Adventra: usually on a trip i get around 11ltr/100klm,
best ever doing exactly 100klm/hour, not stopping down and babying the accelerator was 9.5ltr\100klm.
around town 13 - 14ltr/klms.
MODS: cat back exhust, high flow filter, 2nd hole mod, edit.

[Swordie]

I like to punt it a bit. On a combination of freeway and inner city driving my VY V6 Wagon gets 12.5. Pure inner city stop and starts it gets 18-19’s. Pure flat freeway driving it will easily gets 8’s and as low as 7.5. Hilly freeways it gets high 9s.

If Adventra drivers make an allowance for the fact they carry more weight and have a V8 compared to my car you are probably not doing to bad. Buy a V8 Landcruiser or an older V8 Discovery and fuel your consumption will be in another dimension.

If Holden put the new 6.0 into Adventra you would be paying for premium unleaded. The dropping of the model may help to preserve you values a bit better compared to the past.