MPG loss after lift, bigger tires, and other outfitting.

[JLee]

It says Kenwood

Kenwood makes over 40 different head units.

I looked into it a bit and it appears the DNN990HD supports OBD2, but it's no longer in production.

 

[NMBruce]

This is not connected to OBD2 because I need an interface and the one that Kenwood uses IDatalink Maestro and the only one that hooks up to our system is the Maestro SW which only controls the radio. I get the picture I posted by imputing the Fuel cost/gallon and the amount of Gallons I put in the tank, then the DNX893s does the rest and stores the information for me.

If I could get it to connect to the OBD2 and give me everything that the Maestro RR supports, then I think I would get that and have it on the head unit. From what I can find, IDatalink does not support any Lexus with the Maestro RR that I can find on their website.


just looked at something on IDatalink, the Maestro RR will hook up to a Toyota 4Runner and my Kenwood DNX893s, iDatalink - Maestro - Maestro RR, so why would it not hook up to a Lexus GX470? input on this? So if we use the same drivetrain, engine and computer of the 4Runner Limited, then it should work?

 

[Dharma Dude]

I just use a GPS trip tracker on my ipad that is mounted in the truck. When I fill up, I look at the GPS total and do the simple math.

Math is hard

Hey Dan,

You're running 4.56 diff gearing with 35s? And you're getting 15. That's pretty good.

Did you ever run 33s on 4.56 gearing? And what was your mpg then. I suppose the revs were alot higher with that combo.

 

[GXO]

I ran 34x10.50s not 33s. Was closer to 13.5. I am off on the Speedo by about 9% now.

 

[half k cruiser]

@coops2k here's a super MPG related question. Where did you buy the fit kit for your double din aftermarket radio ?

 

[NMBruce]

@coops2k here's a super MPG related question. Where did you buy the fit kit for your double din aftermarket radio ?

I got the Beat Sonic kit, way too much $$$$ There is another kit out there for the plastic and I think for the wires to make the amp work. I will try to find it later, out running around now, might have a link on my build

 

[half k cruiser]

I got the Beat Sonic kit, way too much $$$$ There is another kit out there for the plastic and I think for the wires to make the amp work. I will try to find it later, out running around now, might have a link on my build

Awesome, I think I looked at the beat sonic kit, $300 + seemed pretty steep to me. Although I think moving from an 80 series to a 120 means I'm now in the $$$ signs range for parts.

 

[Dharma Dude]

I ran 34x10.50s not 33s. Was closer to 13.5. I am off on the Speedo by about 9% now.

@DanKunz
I'm confused. You got 13.5 mpg with 34s on 4.56 gearing? Earlier you said 15mpg. Was that on stock?

 

[NMBruce]

Awesome, I think I looked at the beat sonic kit, $300 + seemed pretty steep to me. Although I think moving from an 80 series to a 120 means I'm now in the $$$ signs range for parts.

look and read post 34-38, this could save you $$$
Coop's GX470

 

[half k cruiser]

look and read post 34-38, this could save you $$$
Coop's GX470

Thanks buddy !

 

[GXO]

@DanKunz
I'm confused. You got 13.5 mpg with 34s on 4.56 gearing? Earlier you said 15mpg. Was that on stock?

No clue on stock, that was 8 years ago. 34s on 4.56 was pulling close to 3k rpms at highway speeds. I pull 2200 now. Not that hard to figure!

 

[Dharma Dude]

No clue on stock, that was 8 years ago. 34s on 4.56 was pulling close to 3k rpms at highway speeds. I pull 2200 now. Not that hard to figure!

@DanKunz At the risk of being annoying with too many dumb questions. So 13.5 mpg was before with 34s on 4.56.

So 15mpg is now with 2200 rpm at highway speed. But what did you change? I think I saw on another post that you went to 35s but that can't be it.

 

[NMBruce]

This is not connected to OBD2 because I need an interface and the one that Kenwood uses IDatalink Maestro and the only one that hooks up to our system is the Maestro SW which only controls the radio. I get the picture I posted by imputing the Fuel cost/gallon and the amount of Gallons I put in the tank, then the DNX893s does the rest and stores the information for me.

If I could get it to connect to the OBD2 and give me everything that the Maestro RR supports, then I think I would get that and have it on the head unit. From what I can find, IDatalink does not support any Lexus with the Maestro RR that I can find on their website.


just looked at something on IDatalink, the Maestro RR will hook up to a Toyota 4Runner and my Kenwood DNX893s, iDatalink - Maestro - Maestro RR, so why would it not hook up to a Lexus GX470? input on this? So if we use the same drivetrain, engine and computer of the 4Runner Limited, then it should work?

So does anyone know for sure, without a doubt if our computer is the same as a V-8 4Runner computer of the same year? the part numbers are different, at least the last 5 numbers after the dash,
GX470 part number 89661-60D30 vs 4Runner part number 89661-35B30
so I guess one can not be exchanged for the other