RAP1D

The new commodores out now have some sort of sensoring to tell them what rating the fuel is, and adjust to suit target AFRs, pretty good feature. Until it becomes more reliable and we can say, yes its going to be the same spec all the time, most folk will have to stick with 98. I wouldnt use it unless you have a wideband permanently set up, know what your looking at, and have a solid understanding of what happens if it hits 14:1 on 4psi at 70% load LOL It is the future though, no denying that One thing Ive found is timing at WOT, even when you go past the point of making more power, it still wont ping... 24deg anyone LOL

The stock fuel rail can be fingered for some lean number 6 's, though there is also a heat build up there... there's so many theories going around on this subject, believe what you like. Front mounted TBs have been used on turbo 6s for years, RBs, 1J's ect if there were major concerns the most common plenum used on these cars would centre fed. EA- ED falsons used a front mounted TB back in the 80s/90s, it was only the move to variable vanes/ runners in the EF that the centre fed TB came about. I dont think anyone should jump and get all paranoid, there has to be near 1000+ XR6Ts running after market plenums, many have blown motors, but loads havnt... too many variables to point the finger at these plenums. If your concerned about this issue and want to monitor it, set up pyro meters in each exhaust runner, ther's some cool kits to buy but they're not cheap or simple to set up. I'd lean more towards the stock fuel rail, if your running big boost pressure its a good thing to upgrade to a twin feed rail, so that it has an even fuel pressure across each injector, they they flow/squirt the same cc into each chamber.

Nah not enough fuel support mate, mine ran lean on one 044 & 80lb dekas, it made 450ish but was 13.5 AFR. For 450wkws, 80lb injectors and two 044s works well on mine, a good alternative to twin pumps is a larger single 1000hp pump, such as Aeromotive A1000, not cheap but easier to plumb up if you have an existing surge tank system. I wouldnt like to go more than 380wkw on a single 044 for e85, you need good headroom with a fuel system at this level.

Starts perfectly, but I spose that's due to the stock PCM, so not like some of the Nissan guys with stand alone ECUs that have issues with starting cold. Apparnetly in winter the fuel suppliers add more petrol into the mix to help with starting, so maybe if/when they change it for summer my tune may start to run leaner, so we'll see.

Yeah it can be a bit hit n miss when doing blends that way, I did it for awhile, now I just run straight e85. From what I read, the difference between 70 & 85 can be 1 point, so if your tuned at 12.5afr at wot on e85, running e70 can run at 11.5afr... so basically it will go richer with more petrol in it. I recommend having a wideband 02 gauge/sensor set-up in the car if your running E85 / E70 or doing blends as the AFRs can change so best to monitor them. If you can use it, use it... its awesome fuel, motor runs cooler, inlet temps are cooler, more power, even my two 044 pumps in the boot are cooler so run quieter... and a bucket load more power through the rev range!

Good move, they come alive with a big turbo and supporting mods... no more running out of puff at 5 grand

Fit a straight through 3.5inch rear muffler, of decent quality, and the system will support 450+ (as long as the cats in good nic). We've done this to a few BA's using the same mufflers I use on my FG, turns into a very good system.

044s get loud when hot as the use the fuel itself to cool... some sort of heat shielding could help for the ones mounted near the engine bay. They also get loud if flow through them is restricted, but this shouldnt be an issue with the surge kits available for our cars.

We have just taken one off a customers car, to be replaced by something alot more serious... your welcome to drop by and see whats involved to fit one, a few chops here n there, and there and here... at least we have loads of room for the new cooler lol

Yeah loads of XRs with decent EBC's fitted, I ran ProfecB for awhile in the old BA, and I know of a few with AVC-R working great, though you can't beat the factory PCM for ultimate boost control mapping... just can't make changes on the fly like you can with an EBC.

The stock diff ratio is a pretty good match to the zf mate, going up in ratio will make it less prone to tail shaft twist/breakage, but you've sorted that anyway lol first will be even more usless than it is at this power level.

I've found that just turning down the boost and bring on alot of torque is enough to impress/ scare passangers in mine. As said you need to be at high way speeds to really show what over 400 is like, drop down to 80 in 3rd and nail it, but your waaay over the speed limit in seconds so it's not a wise move on public roads. Tuning and more so, smart road tuning are where the big power cars need alot of focus. It always makes me wonder why, when you see a big number on a Dyno sheet at max power, yet less than factroy power at 100ks, not to say these are poorly set up and/ tuned, mainly tuned to a number, rather than an experience. I've driven and ridden in loads of 400+ cars, some are crap with nothing down low, others with silly amounts down low spinning the tyres on the lightest throttle. And others that are simply awe inspiring to drive ... The ability to control power with the throttle is a great satifying experience, to be able to feed in 450kws and know that the tyres won't just errupt in smoke. Iccer I'm with you, MTs on it all the time, unless I've got the RE55s on in my view, any car running these power levels should incabin boost control and a wastegate system that allows you to run low, 15psi or so levels.

Yeah they've been doing the turbos for awhile now but not on a huge scale as they do alot of S/C 5.4s and the like. I've been working with them on the tuning side with my FG, and the results keep getting better as we find more and more interesting tweaks... FGs are waay different to BA BF in the tuning/software. Karl, apparently 350 was made in melb on a G6ET, but yeah this is the most I've seen from the small turbo. Good to see your happy fpv_f6

Nice, you plan to run it at wsid?

Ah yeah no probs

Grab a cheap flight and come up to sydney, we can get some FGs and BFs together for you... or bring jimmy for a road trip

We maxed mine at 330ish, but that said theres some that have gone 350 in melb, other lower, figures are all over the place so its hard to get a solid figure on what it the max, but its rated at 500-550hp from what I'm told, but like Paul says, its all numbers & best to get it on the track to see a true figure. And decent wiide rear tyres will take alot of the wheelspin out and make the diff work as it should... mine ran 126mph dead straight with the stock diff and MTs... its pretty similar on the 295 Toyo street tyres too... stock tyres are nooo good with decent torque.

Thanks for letting us fit our gear to your car mate, should run close to a ten with the slicks & fronts.

I just re-read your post mate, yeah if it was tuned on 85, then you filled with 70 it would run richer, prob not by a huge amount... tuned on 70 and running 85 it would run lean, so I'd be tuning on 85, and then checking AFRs on 70 to see how rich its going... or have a second tune for 70. So not quiet perfect yet...

Nah you dont tune it a percentage, you tune the same as you would for 98, targetting the same AFRs. The main difference is E85 takes around 20-30% more fuel to make the same AFR... so for example, the max power you may get from 60lb dekas, you'll get from 80's, roughly speaking. So for E85 you need to add in alot more fuel than you would for 98 to make the same power, but kicker is you can add ALOT more spark timing than you could for 98, and more timing makes more power... same deal as race fuels, toluene additives ect... oh and it'll take more boost befor it detonates. So if your planning a strong 450wk tune, its a good idea to run around 1000cc injectors and 1200hp of fuel supply, so in my case two 044s. I have a wideband 02 permenantly set up in the car so I can monitor AFRs as I drive. With E85 the chances of breaking the motor are alot lower, for a given psi that is... I'm happy to feed my stock motor 22psi on 98, and 25psi on E85, maybe more but we're not at that level of "ballsyness" yet lol The first thing you notice with E85 is the idle is silky smooth, the motor will rev and respond faster, power delivery is very very smooth and can be more linear. We are constantly writing new tune files and trying them in the car on the street... not for max power,that's dyno only, but for midrange pull, throt response, idle , cruise ect. I'm lucky enough to have two awesome tuners both with different approaches to tuning helping out with the tuning, one here and one way over west. Right now we are just working more so on a strong 22psi tune for 98, then spend more time in finishing a polished E85, 25psi tune, but we've pretty much nutted out the do's and donts of E85, so will be able to get right into soon and hammer the motor I still can't get over how much boost we could use on E85... same boost on 98 and I'd be on the phone to Brad by now lol E85 = Good times!

Hey Ersin, yeah mate I'm on here alot, if you want lets run it up on the dyno and make sure its ok.

V1 cooler kit on its own wont cause an overboost, didnt you do the cat as well mate? With the cooler kit it was ok, the intake made it run bad/overboost? So put the cone intake back on. FG's are not like BAs, you can over boost them and they will go into limp mode which basically shuts the throttle/no boost. I'm not saying go out and spank it with no tune, just that it wont spike big boost, it will go into limp mode. I drove my G6 from sydney to headsex without a tune & 3.5in exhaust, cooler kit ect... 35000kays later it still lives. Ford have put alot of protection into the latest tuning to stop, I spose to slow down the rate of failed motors. Give me a call if you need to discuss it more, or if your really concerned we can dyno it and see how it looks Cheers Chris

Been playing with E85 in mine... these fuel rocks! Soaks up loads of psi and timing, soon as its available in a few more servos I'm going to use it as a daily mid 400 tune

Bang for buck the good old seimens work fine, I've stuffed around with all sorts of injectors for FG and have decided to just recomend 60lb Seimens with our rail spacers for cars up 400wkws... above that the IDs. As for drilled injectors Ive heard good an bad, as with anything tune related talk to your tuner, obviously Paul/Elite have the drilled ones working well for them, spose it depends on who drills them ect, some good some not. We got 431wkws on 98 from 60lb Seimens BA BF dekas in my G6, on one 044 pump with rail adapters so cant be too bad... Ive now put 80s in and another 044 for saftey sake, and E85 Idle is perefct, set to cruise leanish at low 15s on freeway... like stock.

If your at the level where you need the fuel support of an 044 & surgy tank its a smart move to fit a new stock pump or walbro... not a good idea to rely on a crusty on intank pump and filter. Cheap insurance.