Tune - how to know?

[Roxasuras]

Glad everything worked out for you, good to see that they stood tall on this issue and did the right thing by you.

 

[Sasquatch]

I'll go take some pics for you this afternoon.

@Grump Fish - here are some pics.

 

[Grump Fish]

Thanks Sasquatch!

 

[MTCowboy]

On my 2019 I got the big tune (I always forget what stage that is), 115 hp, the Intake adapter and the vacuum line valve on the turbo and buddy hitting 65 is no issue. If it went any faster I would be required to have a racing stripe painted on it. I have the taller gears than later models and use mine all over our little town as a 2nd car. I bought it with 1900 miles on it a year ago May. I now have 7,000 miles on it. I love this little beast.

 

[Sasquatch]

On my 2019 I got the big tune (I always forget what stage that is), 115 hp, the Intake adapter and the vacuum line valve on the turbo and buddy hitting 65 is no issue. If it went any faster I would be required to have a racing stripe painted on it. I have the taller gears than later models and use mine all over our little town as a 2nd car. I bought it with 1900 miles on it a year ago May. I now have 7,000 miles on it. I love this little beast.

Can’t wait to get the ECU back. I got the intake and boost valve with it.

 

[Bob R1]

I am not sure just how fast you will be able to go with 5.38 Gears, and a Stage 1/2 Tune.
Going Faster with a newer 5.38 Geared Machine, the issue is not as much power, as it is Engine RPM's.
With an older machine (2018-2020) with 3.73 Gears you can use the Impressive Power Increase of a Stage 1 or 2 Tune to go faster.
With 5.38's you will be limited by how many RPS's you can safely turn for how long without hurting the Engine.

Taller Tires, PLUS More Horse Power will let you go faster. The Taller the Tires, the more good a Horse Power Increase will provide.

A Gear Change is probably something to consider if you want more speed.

I checked a Speed Calculator.
5.38 Gears @ 2500 RPM's with 32" Tires = 57 MPH (Pretty much my findings)
3.73 Gears @ 2500 RPM's with 32" Tires = 82 MPH (Faster than I plan to drive a Roxor on any road)

OR

60 MPH with 5.38 Gears and 32" Tires = 2,644 RPM's
60 MPH with 3.73 Gears and 32" Tires = 1,833 RPM's

RESULTS USING LARGER TIRES with 5.38 Gears:
55 MPH with 5.38 Gears and 32" Tires = 2,423 RPS's
55 MPH with 5.38 Gears and 33" Tires = 2,350 RPM's
55 MPH with 5.38 Gears and 34" Tires = 2,281 RPM's
55 MPH with 5.38 Gears and 35" Tires = 2,216 RPM's
55 MPH with 5.38 Gears and 36" Tires = 2,154 RPM's

I am not trying to say a Tune on a newer machine is a bad idea, just that I would not expect to run down the Interstate at 70 MPH with a 5.38 geared machine.

When you get your ECM back, and installed, you will have a unique opportunity to let us all know just how much a Stage 1 or 2 Tune will help a later Model 5.38 Geared Machine. Real world improvement and not just speculation. I am looking forward to your Report.

Bob R

 

[WY_ROX]

I have a 2022, with stage 2. Stock tires, 70mph @ roughly 2500rpms. Rural WY don’t need to go much faster. Thinking about adding the intake kit. 3.73 gears would be great for high way driving, but man the 5.38s are awesome on trail!

 

[Sasquatch]

I am not sure just how fast you will be able to go with 5.38 Gears, and a Stage 1/2 Tune.
Going Faster with a newer 5.38 Geared Machine, the issue is not as much power, as it is Engine RPM's.
With an older machine (2018-2020) with 3.73 Gears you can use the Impressive Power Increase of a Stage 1 or 2 Tune to go faster.
With 5.38's you will be limited by how many RPS's you can safely turn for how long without hurting the Engine.

Taller Tires, PLUS More Horse Power will let you go faster. The Taller the Tires, the more good a Horse Power Increase will provide.

A Gear Change is probably something to consider if you want more speed.

I checked a Speed Calculator.
5.38 Gears @ 2500 RPM's with 32" Tires = 57 MPH (Pretty much my findings)
3.73 Gears @ 2500 RPM's with 32" Tires = 82 MPH (Faster than I plan to drive a Roxor on any road)

OR

60 MPH with 5.38 Gears and 32" Tires = 2,644 RPM's
60 MPH with 3.73 Gears and 32" Tires = 1,833 RPM's

RESULTS USING LARGER TIRES with 5.38 Gears:
55 MPH with 5.38 Gears and 32" Tires = 2,423 RPS's
55 MPH with 5.38 Gears and 33" Tires = 2,350 RPM's
55 MPH with 5.38 Gears and 34" Tires = 2,281 RPM's
55 MPH with 5.38 Gears and 35" Tires = 2,216 RPM's
55 MPH with 5.38 Gears and 36" Tires = 2,154 RPM's

I am not trying to say a Tune on a newer machine is a bad idea, just that I would not expect to run down the Interstate at 70 MPH with a 5.38 geared machine.

When you get your ECM back, and installed, you will have a unique opportunity to let us all know just how much a Stage 1 or 2 Tune will help a later Model 5.38 Geared Machine. Real world improvement and not just speculation. I am looking forward to your Report.

Bob R

I don't really care about going fast on this machine, it was just my way of testing to see if the Tune was really there or not from the dealer. I doubt I ever go above 55, most of my riding will be trails and dirt roads; it's not a daily driver for me.

The ECM is scheduled to deliver today!

The intake did not ship with it, and it shipped today, so I guess I'll see a before/after intake version also.

 

[Sasquatch]

I have a 2022, with stage 2. Stock tires, 70mph @ roughly 2500rpms. Rural WY don’t need to go much faster. Thinking about adding the intake kit. 3.73 gears would be great for high way driving, but man the 5.38s are awesome on trail!

I'm on 285/65r18's - essentially a little under 33" (32.6 x 11.2). I prefer the 5.38's also because I'm on trails and dirt roads mostly.

 

[MTCowboy]

I don't really care about going fast on this machine, it was just my way of testing to see if the Tune was really there or not from the dealer. I doubt I ever go above 55, most of my riding will be trails and dirt roads; it's not a daily driver for me.

The ECM is scheduled to deliver today!

The intake did not ship with it, and it shipped today, so I guess I'll see a before/after intake version also.

I did the same order with DF and am very happy. I did need to really loosen up my intake pipe to reassemble with the 90 for new intake. The performance is night and day. I drive with a very light foot and accelerate gradually on all my diesels so I have not noticed whether my fuel usage has increased but I am sure it has.

 

[Gabe]

I have one of the new machines and my hope was that when I got a tune I could ride the streets and keep up but need to be able to go over 60, I would think. Those Coopers for the install I think are like 32" 235/85r16. Do the new units 23 & 24 actually get to 55 stock? Should be able to get at least 10mph more I would hope ?

 

[MTCowboy]

Mine is a 2019 so has the 3.73 gears. I love the 3.73s. I have low range for crawling along mountain trails and am not rock crawling so no issues. If it doesn't do what you want swap the rear end (tho I have no idea what is interchangeable) or add an overdrive and have the best of both worlds. Machines are meant to be modified to serve your purpose, no one else's purpose.

 

[Bob R1]

I normally only go up to approximately 45 on the speedometer on the highway. With the 235/85R16 ( 32") Tires that is closer to 50 MPH per a Calculator. I originally thought it was governed to 45 per something I had read. It seems to like 45 in 5th pretty well on the highway. I was told that it should be governed to 55 MPH on this site. I wound mine on out to 55 MPH on the Speedometer just to see. It will get their, however it is wound up pretty tight. I personally would not run it at that high of RPM for any length of time.

The best solution to getting a new Roxor (5.38 Geared) up to normal highway speed will be a Regear or Axle Swap with someone with a 3.73 geared machine wanting higher numerical gears. You will probably need The Tune to wind it out with 3.73's also. I am sure that The Tune will be worked out shortly. In my area Roxor's seem to be selling better than ever. Partially due to the way too high price of Side By Side Machines. That should encourage someone to get The Tune worked out.

For my use the 5.38 gears are going to work out just fine. The low traffic Letter Highways that I drive on are no problem at 45-50 MPH. That would be 40-45 on my Speedometer. So far I have not been passed. We have a restaurant in the sticks we eat at. I will keep our Wrangler MOAB at 40-45 actual speed on that Letter Highway to avoid deer. I have never been passed driving my Jeep at that speed on that highway either.

On the Lease the 5.38 gears are perfect for trail use. I even used 4 LOW last week mainly to see how it would do.

Bob R

 

[Sasquatch]

Still waiting on FedEx. They said it would deliver Monday, then Tuesday, now today! I hate FedEx. If it shows up today, I'll get it installed and report back. I hate FedEx. Already took the wastegate tube off, waiting to put the new one on; I'm ready. Did I mention that I hate FedEx?

 

[Sasquatch]

Had to go pick it up, but finally got it. This thing is a BEAST.

 

[Bob R1]

Keep us posted on your progress.

Bob R

 

[Gabe]

How did it perform with the Tune ?

 

[Sasquatch]

How did it perform with the Tune ?

Totally different machine. PLENTY of power. I have to shift much faster now.

 

[Gabe]

What kind of top
End do you get with the tune and the gears ?

 

[Sasquatch]

What kind of top
End do you get with the tune and the gears ?

I have not even been faster than 50 since the tune but I’ll see what it can do and let you know.