E-Series vs AU's

[EFFalcon]

I've seen plenty of threads in the AU section involving 1/4 mile times etc.
it seems there are plenty of AU's that can manage mid 15's, with simple exhaust mods.

Are there any eseries cars that have managed similar times on just exhaust mods?

[Walkinshaw]

Wer'nt AU1's lighter than EL's?

[EFFalcon]

possibly..
i know theres plenty of metal missing from each corner of AU's, maybe that helps.

[Racecraft]

I got 15.9 from a dead stock NL Fairlane no mods,a dodgey paper filter, 2/3 of a tank of standard unleaded fuel..

Surely some of the auto sedans are in the mid 15's, with the manuals even lower?

[EFFalcon]

Yeah, i'm talking AUTOS!
makes me wonder whats wrong with my ter if stockies can run around 16 flat.

[Casper]

Originally Posted by Walkinshaw

Wer'nt AU1's lighter than EL's?

Yes, slightly.
The EL GLi was officially 1536kgs kerb weight, the AU forte was 1515kg.

21kg is a bit of a difference.

[mcflux]

Interesting! I never knew that... No wonder the weight issues of the BA seem so obvious compared to the AU...

[ilsautomotive]

The weight difference between the EL and AU Fairmonts was about 70 kg from memory. Obviously it's another matter if we talk of IRS models.

I'm not sure why the E series autos seem to need a bit more work. The only other significant advantage an AU has is reduced drag.

[niko]

well newer techology was used in building, and they were abit more powerfull from stok, plus they cost abit more?

im talking extreme early eseries early-later au

[Supa R00]

AU's often make more power stock then the E-series with better rod/stroke ratio and bigger vavles if im correct...

[Dark Horse]

Originally Posted by Casper

Yes, slightly.
The EL GLi was officially 1536kgs kerb weight, the AU forte was 1515kg.

21kg is a bit of a difference.

Man, I thought the difference was less than that. Hell are you also trying to tell me the EL GLi weighs more than the XR6 HP?

Mmm Adaptive Shift.

Actually there's not that much in it. Take for instance the Slothmobile and the Darkmobile. Both owners couldn't be stuffed with aftermarket exhausts - laziness a typical 3FB trait. Ok, granted Slothy has intake mods (the induction roar is second to none I tell you!). Back on topic, the AU only really starts pulling away as the Intech screams towards redline (5,000 rpm+).

[mcflux]

AU and E-series sixes must have slightly different power/torque curves or something? After all, they're both rated with the same max power & torque (157kw, 357Nm) (I'm talking base model cars here, EF to AU, ignoring EA-ED)

-Dave-

[dansedgli]

Maybe its just down the car being newer? The auto would be much better too wouldnt it?

Is there much of a difference on the dyno?

[Kenaz]

Originally Posted by EFFalcon

it seems there are plenty of AU's that can manage mid 15's, with simple exhaust mods.

Are there any eseries cars that have managed similar times on just exhaust mods?

I got 15.5 with just a cat back. EL Ghia auto

[INJECTED_250]

im thinking his meaning 6's

[neb]

what about a stock auto el xr6 or similar.. someone must of run a 15 in one of them?

[Kenaz]

Originally Posted by INJECTED_250

im thinking his meaning 6's

He should've been more specific then :P

[EFFalcon]

i've seen a stock EF XR6 auto run 15.9
and my car with just XR6 diff ran 16.1

but i'm talking stock GLi vs Forte..
3.08 diff geared auto 6's.

the power curve is deffinately different between an EF/EL and an AU.

i find that the EF has more power up high, where as the AU has better mid range.
my parents AU wagon feels to have plenty of mid range, but really struggles after 4500rpm.

[jonbays]

Stock auto EF-EL and AU Auto's are pretty slack most do 16-16.5 over the quarter.

Now before you complain everyone posts their best time of course but if you looked at the average easy to repeat times you'd find there was not all that much difference between AU and EF-EL's. Sure the AU was lighter xcept if it had IRS but there is more individual differences between cars than the difference the weight makes.

I mean for instance I ran mine down the strip but its my only car and its daily driven so do I do any burnouts to fry my expensive tyres NO. Do I stall it to standing wheelspin or drop it into drive to get the best time NO.

My wagon ran a best of 16.8 stock and the average was nearly a flat 17.0!

It will run a pretty comfortable 15.7 on average now well it did before the Unichip which I have yet to put to the test.

[EFFalcon]

while in stock form they are VERY similar... i simply beleive the AU responds better to the more simple exhaust mods.

[dansedgli]

Time to get an AU john! :P

[Qwikcorty]

cant wait till i have exhaust mods again, such as 4-1 extractors, x pipe, and twin 2.5 system!

[dansedgli]

Mmm twin exhaust! Go the AU's with exhaust and intake mods! :P

[tommo74]

Mate I have an ed 5 ltr with a HEAP of mods including edlelbrock heads,manifold,crane cam big t/b....and the damn thing STILL feels slow
Feels like it would only pull 16s if its LUCKY!
so you guys in under modded sixes should feel so lucky

[EFFalcon]

my car is modded, and still pulled 16's at the last drag day :P

[InitialD]

Originally Posted by dansedgli

Maybe its just down the car being newer? The auto would be much better too wouldnt it?

Does the AU have a higher stall converter then EL? I know the EL/EF one is slightly higher then the EA one ;)

[EFFalcon]

AU auto's tend to be stronger, i know that much.
but thast about all :/

i reckon my mums AU2 Futura on gas would beat my car! that sucks! it just feels so much more powerfull/smoother to drive.

[InitialD]

Well im told now the AU Torque Converters are a slightly higher stall, now packaged with the AU motor wouldnt that make a increase?

The Eseries autos are pretty meh in performance wise, I was informed the AU auto is alot better... anyone wanna donate me one? lol

[Sleeperau]

I have An EF, owned a new El (rode it off) & now an AU2 all base line. I found the AU2 to have better throttle response but the E series better up high.