How Much Boost With E85?

[arrydjay]

How much is the flex fuel sensor?

I was going to have to pay my tuner to make two maps which is about $600 per map, so maybe it's worth putting that money into a better ECU and then getting the sensor.

Fuel system is being upgraded as well, I've got a 255 walbro in-tank atm, but I'll just be using that to feed a surge and then another pump for the main feed.

I'm buying injectors today, looking at 800cc sards would they be alright?

[Piggaz]

How much is the flex fuel sensor?

I was going to have to pay my tuner to make two maps which is about $600 per map, so maybe it's worth putting that money into a better ECU and then getting the sensor.

Fuel system is being upgraded as well, I've got a 255 walbro in-tank atm, but I'll just be using that to feed a surge and then another pump for the main feed.

I'm buying injectors today, looking at 800cc sards would they be alright?

Sensor, loom and ethanol % display (not essential but nice to have) is about $650 delivered from the states.

Forget the Sards. Get ID 1000's. They will idle and drive so much better.

I think my car had 7 different maps in total. They weren't full 'wipe it clean and start again for each' so the dyno time isn't like 7 FULL maps!

It's very worthwhile doing. You get sick of dragging around Jerry cans everywhere. Put whatever you want it and drive off. You don't even notice the car 'doing its thing'.

[wolverine]

At a guess Link + flex fuel sensor + tuning = $3000-$3500 drive away

[Piggaz]

At a guess Link + flex fuel sensor + tuning = $3000-$3500 drive away

Link $1650

MAP sensor $200 (if needed)

Sensor, loom and display $650 ish

Few fittings and lines for the sensor... $70 or so?

TOTAL before tube is

$2,570

Install plus tune = up to your tuner.

So anywhere upto $4,000 I'd say.

[methz]

thought link comes with 4bar map sensor internally?

[Piggaz]

thought link comes with 4bar map sensor internally?

2.5 absolute, so 1.5 bar or 22 psi of boost.

[34GeeTeeTee]

Sensor, loom and ethanol % display (not essential but nice to have) is about $650 delivered from the states.

Forget the Sards. Get ID 1000's. They will idle and drive so much better.

I think my car had 7 different maps in total. They weren't full 'wipe it clean and start again for each' so the dyno time isn't like 7 FULL maps!

It's very worthwhile doing. You get sick of dragging around Jerry cans everywhere. Put whatever you want it and drive off. You don't even notice the car 'doing its thing'.

Is that the Zeitronix? JEM had them in stock at $650 too from memory, i think it was a bit to wire in too....

At a guess Link + flex fuel sensor + tuning = $3000-$3500 drive away

Depending on the tuner, full flex is not a cheap tune... It is basically the cost of 2 tunes from my experience so far... The wiring in of the sensorts etc has added a bit to the bill too, but at the end of the day for a proper setup it will all be worthwhile... As for the OP asking for a cheap option, there is no cheap option when it comes to flex fuel setup but it is so practical to have if the car is used often

[Piggaz]

Is that the Zeitronix? JEM had them in stock at $650 too from memory, i think it was a bit to wire in too....

Yes. From memory it just wires into one of your inputs on the ECU.

[Piggaz]

Depending on the tuner, full flex is not a cheap tune... It is basically the cost of 2 tunes from my experience so far... The wiring in of the sensorts etc has added a bit to the bill too, but at the end of the day for a proper setup it will all be worthwhile... As for the OP asking for a cheap option, there is no cheap option when it comes to flex fuel setup but it is so practical to have if the car is used often

It's not just 2 tunes. You don't just do one for E85 and one for 98.

We did 6 or 7 tunes. E85, E70, E50, E30, E15 and 98 or there abouts.

Started off on E85 and just kept modifying the one above it as we went down in E %.

[usmair]

At a guess Link + flex fuel sensor + tuning = $3000-$3500 drive away

if your just going dual map tunes then PowerTune will charge $1300 for 98 and e85 tune

with my setup, I got the e85 sensor plus the I/O plugin for the Haltech read the e85 signal

with the Flex flex setup similar to Paul's its another $1400 on top which includes the e85 sensor, the plugin for Haltech, labour to hook it all up then extra tuning for various levels of e85

$1800 for haltech

$1300 for dual tune

$1400 for flex fuel setup

$4,500!!! its not cheap lol

[34GeeTeeTee]

It's not just 2 tunes. You don't just do one for E85 and one for 98.

We did 6 or 7 tunes. E85, E70, E50, E30, E15 and 98 or there abouts.

Started off on E85 and just kept modifying the one above it as we went down in E %.

Yeah man, wasnt implying that... I meant the cost for my tune is about 2 tunes worth.... The tuning iteself will be very similar to what you have mentioned above

if your just going dual map tunes then PowerTune will charge $1300 for 98 and e85 tune

with my setup, I got the e85 sensor plus the I/O plugin for the Haltech read the e85 signal

with the Flex flex setup similar to Paul's its another $1400 on top which includes the e85 sensor, the plugin for Haltech, labour to hook it all up then extra tuning for various levels of e85

$1800 for haltech

$1300 for dual tune

$1400 for flex fuel setup

$4,500!!! its not cheap lol

Yep, its not cheap but its worth it..... The haltech is even more for the 34GTT as its the PS2000 wired in only...

[Hanaldo]

thought link comes with 4bar map sensor internally?

2.5 absolute, so 1.5 bar or 22 psi of boost.

Feel like I should clarify here for the sake of any R34 owners reading; the Link G4 plug in for the RB25DET Neo does NOT have any internal MAP sensor of any sort. I'm guessing this is because the RB25DET Neo has a MAP sensor from factory that you can use, but it is only capable to 14psi. So if you want to run any sort of decent boost level, you need to buy an external map sensor for it as well.

[Piggaz]

Feel like I should clarify here for the sake of any R34 owners reading; the Link G4 plug in for the RB25DET Neo does NOT have any internal MAP sensor of any sort. I'm guessing this is because the RB25DET Neo has a MAP sensor from factory that you can use, but it is only capable to 14psi. So if you want to run any sort of decent boost level, you need to buy an external map sensor for it as well.

Just had a quick look. The GTR versions have the 2.5 Bar MAP sensor on board. My mistake!

[Hanaldo]

Just had a quick look. The GTR versions have the 2.5 Bar MAP sensor on board. My mistake!

No problem, not even my tuner realized that the GTT board doesn't come with one

[75coupe]

Feel like I should clarify here for the sake of any R34 owners reading; the Link G4 plug in for the RB25DET Neo does NOT have any internal MAP sensor of any sort. I'm guessing this is because the RB25DET Neo has a MAP sensor from factory that you can use, but it is only capable to 14psi. So if you want to run any sort of decent boost level, you need to buy an external map sensor for it as well.

wow thats annoying... you definitely need another map sensor as well with the link... sucky

[Birds]

Tune for E70 and not on a knife edge

Keep eye on wideband and/or E content sensor

?????

PROFIT

[Piggaz]

Tune for E70 and not on a knife edge

Keep eye on wideband and/or E content sensor

?????

PROFIT

What if you want to drive to Melbourne from Sydney?

What's the point of having a content sensor if you're not going to go the whole way?

[Birds]

Then you deserve to break down on the side of the road, leaving this city for that one

Realistically though, I'd just switch to my 98 tune when the E gets low and drive up on that. My tuner also believed he could manipulate an ethanol tune so I could putt around on 98 in an emergency / if I really needed to. Not saying flex fuel setups aren't the pinnacle of dealing with ethanol, but there are plenty of ways around spending 4-5k on a proper setup. Justifying that on say, an R33 GTS-T, is difficult.

[wolverine]

if your just going dual map tunes then PowerTune will charge $1300 for 98 and e85 tune

with my setup, I got the e85 sensor plus the I/O plugin for the Haltech read the e85 signal

with the Flex flex setup similar to Paul's its another $1400 on top which includes the e85 sensor, the plugin for Haltech, labour to hook it all up then extra tuning for various levels of e85

$1800 for haltech

$1300 for dual tune

$1400 for flex fuel setup

$4,500!!! its not cheap lol

My last discussion 6mths ago with a name brand workshop that does this work suggested $3500 was the price tag drive in drive out they were targetting (owner supplying jerry cans of course). I am not sure if this is the correct number as it was an off the cuff guesstimate and could prove to be higher in practice.

[75coupe]

need to locate secondhand GM ethanol sensors & content displays somewhere to make it cheaper....