Starting again

[GTSBoy]

25 minutes ago, Dose Pipe Sutututu said:

at least on E85 you would get about 450km per tank... if that's some kind of unit of measure.

Yeah. I'd need it for the extra miles required to get to and from the handful of E85 outlets.**

**Not quite true. But the sparseness of them is good enough reason to stay on 98, for me at least.

[r32-25t]

98 dirty garbage, everything except fuel economy is better with e85 

[GTSBoy]

19 minutes ago, r32-25t said:

everything except fuel economy

And the lack of ubiquitous availability. If it was less likely that I'd run out of fuel while trying to cross the crime zone, I'd probably be all over it.

[Kinkstaah]

And P R I C E.

I love 98.

10kw loss

20% cheaper for a liter, 30+% more range per km, and available everywhere 

[r32-25t]

A few servos in bankstown are currently making e85 cheaper again

[MBS206]

23 hours ago, GTSBoy said:

And the lack of ubiquitous availability. If it was less likely that I'd run out of fuel while trying to cross the crime zone, I'd probably be all over it.

This is why you flex fuel it...

[GTSBoy]

2 minutes ago, MBS206 said:

This is why you flex fuel it...

It's a valid point. And it is doable with the Nistune. But I'm not inclined to flex it the way Nistune does - certainly not on a Neo ECU. They're already pernickety enough to tune just one one fuel. And of course, I'm not that interested in putting in a Link or similar, on a daily. With the stock ECU, stock looking turbo, etc etc, I still stand a chance of surviving a run-in with the plod. Last time it went over the pits (which was for the transplant, for because of a run-in with the plod), the Nistuned ECU did not even raise an eyebrow. They want to see a stock ECU running the engine, and they are happy to see it do so without the check engine light** on. Never mind that the Nistune is necessary to make the stock ECU work in a different chassis without ABS, TCS, etc.

**And they actually provoke the CEL to come on by disconnecting the AFM, to prove that the globe hasn't been pulled!

[Kinkstaah]

My car is also flex tuned.

It's worth mentioning it (the LS1 ECU) has a 1D table for E85 addition and just uses the ethanol stoich part as the second point of reference.

It also as a 3D timing map for Ethanol adjustment. You would think this isn't enough but it works pretty damn well.

That said, I wouldn't want it in turbo application. It's like lifting non-natty, or taking meth. It gets you unrealistic results that break down more things going forward. If people used it to make the same amount of power they do on 98 then it'd be one thing. But people use it, crank it up to eleventy million PSI, it doesn't knock - but it pushes the point of failure to another, more expensive thing to break.

Every time I see someone make 280kw on 98 and 350kw on E85 on the same equipment I just cry a bit and really wish they would just stay on 98 in that exact scenario. It's bad for you. 

[MBS206]

4 hours ago, GTSBoy said:

It's a valid point. And it is doable with the Nistune. But I'm not inclined to flex it the way Nistune does - certainly not on a Neo ECU. They're already pernickety enough to tune just one one fuel. And of course, I'm not that interested in putting in a Link or similar, on a daily. With the stock ECU, stock looking turbo, etc etc, I still stand a chance of surviving a run-in with the plod. Last time it went over the pits (which was for the transplant, for because of a run-in with the plod), the Nistuned ECU did not even raise an eyebrow. They want to see a stock ECU running the engine, and they are happy to see it do so without the check engine light** on. Never mind that the Nistune is necessary to make the stock ECU work in a different chassis without ABS, TCS, etc.

**And they actually provoke the CEL to come on by disconnecting the AFM, to prove that the globe hasn't been pulled!

Do they always do it from the AFM?

If so... You know what I'm already thinking I reckon...

[Murray_Calavera]

4 hours ago, Kinkstaah said:

Every time I see someone make 280kw on 98 and 350kw on E85 on the same equipment I just cry a bit and really wish they would just stay on 98 in that exact scenario. It's bad for you. 

I do this, I also don't get the joke  

[GTSBoy]

3 hours ago, MBS206 said:

You know what I'm already thinking I reckon.

Oh, it's been done. You just run a wire out there and back.

But they have been known to do coolant temp sensors, MAP sensors, etc. They're not silly (at Regency Park) and know what's what with all the different cars.

[MBS206]

21 hours ago, GTSBoy said:

Oh, it's been done. You just run a wire out there and back.

But they have been known to do coolant temp sensors, MAP sensors, etc. They're not silly (at Regency Park) and know what's what with all the different cars.

So we need to get together, design a new ECU, that can be mounted elsewhere, leave all the "factory" sensors "in-place", and then any it's not using, when it detects them unplugged, throw a CEL.

 

Yeah, probably too much effort these days for a Skyline...  

[Dose Pipe Sutututu]

On 25/06/2025 at 6:41 PM, Murray_Calavera said:

I do this, I also don't get the joke  

Same, English is my 3rd language

[joshuaho96]

On 24/06/2025 at 8:35 PM, GTSBoy said:

It's a valid point. And it is doable with the Nistune. But I'm not inclined to flex it the way Nistune does - certainly not on a Neo ECU. They're already pernickety enough to tune just one one fuel. And of course, I'm not that interested in putting in a Link or similar, on a daily. With the stock ECU, stock looking turbo, etc etc, I still stand a chance of surviving a run-in with the plod. Last time it went over the pits (which was for the transplant, for because of a run-in with the plod), the Nistuned ECU did not even raise an eyebrow. They want to see a stock ECU running the engine, and they are happy to see it do so without the check engine light** on. Never mind that the Nistune is necessary to make the stock ECU work in a different chassis without ABS, TCS, etc.

**And they actually provoke the CEL to come on by disconnecting the AFM, to prove that the globe hasn't been pulled!

Would the new Haltech Nexus plug-ins work for this? Or are they actually checking under the kick panel?

[GTSBoy]

17 minutes ago, joshuaho96 said:

Would the new Haltech Nexus plug-ins work for this? Or are they actually checking under the kick panel?

Ozzie cops have known to look for aftermarket ECUs since the 90s. The only ones that could skate buy were bare boards that went into the stock case. If you then went and stuck a Link sticker or something on it, the loss of camouflage was on you.

So, no, the new Haltechs won't solve any such problems.

[soviet_merlin]

Stick a Nissan sticker on the haltech?

[MBS206]

2 minutes ago, soviet_merlin said:

Stick a Nissan sticker on the haltech?

The normal trick would be to leave the factory ECU in place, with a look on it (that eventually goes no where) and reroute the engines wiring to a totally different location, like under a seat and mount the aftermarket ECU there, and then make sure it's hidden.

[GTSBoy]

8 minutes ago, MBS206 said:

The normal trick would be to leave the factory ECU in place, with a look on it (that eventually goes no where) and reroute the engines wiring to a totally different location, like under a seat and mount the aftermarket ECU there, and then make sure it's hidden.

Which would need the same trick wire routed from the aftermarket ECU to the OEM ECU's plug to make sure the aftermarket ECU won't power up when the OEM ECU is unplugged.

Totally doable, just a bit of a pain in the butt.

[MBS206]

35 minutes ago, GTSBoy said:

Which would need the same trick wire routed from the aftermarket ECU to the OEM ECU's plug to make sure the aftermarket ECU won't power up when the OEM ECU is unplugged.

Totally doable, just a bit of a pain in the butt.

So we strip internals of stock ECU, and use one pin, and jumper to another as a pin out, which is our power supplies. Definitely do able.

Or we go back to make a new board that fits inside. But we're back to "but it's a skyline" and not worth it now due to small market 

[Watermouse]

55 minutes ago, MBS206 said:

The normal trick would be to leave the factory ECU in place, with a look on it (that eventually goes no where) and reroute the engines wiring to a totally different location, like under a seat and mount the aftermarket ECU there, and then make sure it's hidden.

Would heat build up be no issue?

Eg; Haltech S3