Mountune Fiesta MRX Turbo

[shouldbeasy]

4th gear WOT till fuel cut off is fun....

 

[KnockOff]

I had my access port for 6 months before I almost redlined and saw the shift lights come on. Thought wtf was that? Did it again to try to replicate what I saw. Didn't know the ap gad shift lights lol.

Sent from my SM-G930P using Tapatalk

 

[antarctica24]

OK, so I made my run on my 4th tune. Randy has not approved me releasing anything as of yet, but I know I ran on the right tune, so there's that.

I recorded my Temp and corrected in VDyno
I recorded my barometer and corrected that in VDyno
and according to the logs, at 6850 RPM I am moving 29.38lb/min of air.


I am super excited by the results, which I am certain he will let me post soon.

 

[scoobtothenoog]

What does Randy charge for all of those custom tuning?

 

[antarctica24]

What does Randy charge for all of those custom tuning?

I'm not sure, mine has been free because it was included with the purchase of the turbo. I think mine was the last one that had that included but I could be wrong. Now it's 250.00 with the turbo.

 

[FiestaTexas]

So I took my ST to the track for the first time with the MRX upgrade. Im on my 6th tune with Randy, and I was running 100 octane fuel. My worn Bridgestone RE-11s with the stock diff were no match for that much power coming out of corners haha. It took some adjusting in terms of power application coming out of corners thats for sure. On the straights it made very easy work of any MX-5s, BRZs, FR-Ss, or Golf GTIs I came across. Unfortunately their were not any Focus STs out there to see how it compared. If I had to guess its worth another 5-8 mph on the straights, but Ill know for sure next time I go out to MSR Houston since I have data on that track.

 

[antarctica24]

Ok, I have a approved VDyno graph from Randy

The specs for this run included
Elevation was 2208
Barometer was 27.526 inHg
Temp was 47 degrees
58% humdity
Location just outside of Reardan WA
Weight was me 262 and some camping stuff I just bought that i forgot to take out of the car the day before so I had to take that in and weight it to get it right.
I pushed this thing to the edge of the apartment complex so I wouldn't wake anyone up on Sunday Morning as I left the house around 4:15am.

It looks like I made around 21psi at 3384rpm

 

[shouldbeasy]

Ok, I have a approved VDyno graph from Randy

The specs for this run included
Elevation was 2208
Barometer was 27.526 inHg
Temp was 47 degrees
58% humdity
Location just outside of Reardan WA
Weight was me 262 and some camping stuff I just bought that i forgot to take out of the car the day before so I had to take that in and weight it to get it right.
I pushed this thing to the edge of the apartment complex so I wouldn't wake anyone up on Sunday Morning as I left the house around 4:15am.

It looks like I made around 21psi at 3800rpm

View attachment 15483

Now that looks good!

Torque seems to come on early enough - could maybe ask for a bit more linear horsepower line up top but it doesn't fall off much.

 

[antarctica24]

Ok, I have a approved VDyno graph from Randy

The specs for this run included
Elevation was 2208
Barometer was 27.526 inHg
Temp was 47 degrees
58% humdity
Location just outside of Reardan WA
Weight was me 262 and some camping stuff I just bought that i forgot to take out of the car the day before so I had to take that in and weight it to get it right.
I pushed this thing to the edge of the apartment complex so I wouldn't wake anyone up on Sunday Morning as I left the house around 4:15am.

It looks like I made around 21psi at 3800rpm

View attachment 15483

I forgot to mention this is on 92 octane as that is all we have here. I am not sure if he is tuning for 91, or adjusting based on readings for 92.

 

[Turbo65]

Very nice indeed

 

[antarctica24]

Ok, I have a approved VDyno graph from Randy

The specs for this run included
Elevation was 2208
Barometer was 27.526 inHg
Temp was 47 degrees
58% humdity
Location just outside of Reardan WA
Weight was me 262 and some camping stuff I just bought that i forgot to take out of the car the day before so I had to take that in and weight it to get it right.
I pushed this thing to the edge of the apartment complex so I wouldn't wake anyone up on Sunday Morning as I left the house around 4:15am.

It looks like I made around 21psi at 3384rpm

View attachment 15483

I made an error. I stated 21 psi at 3488 and it is actually 3384. Sorry about that.

 

[StayPuft]

Nice numbers and nice curve! I bet at 6k it's making at least +100hp

 

[SneakyPete]

Curious what the typical install price is for this kit. Is everyone running Mountune's BOV or something else typically and what downpipes?

 

[Hijinx]

Curious what the typical install price is for this kit. Is everyone running Mountune's BOV or something else typically and what downpipes?

Install price is gonna vary by your area. But, typical time is 4-6 hours. Call a local shop and ask them about their labor rate, multiply that by the time and you'll have an estimate.

 

[re-rx7]

I'm running a HKS valve and any DP will work as it bolts up to stock.

 

[re-rx7]

This is the upgraded wg that will fit. I'm 99.9% sure. 12-14 psi. The 14 setting should be spot on.
http://m.ebay.com/itm/Garrett-Inter...%3A1c0705c315e0aa19f5b3b8a6ffff1561%7Ciid%3A8

 

[L0W PSI]

So, I was curious as to the status of the Wastegate Actuator that Mountune was supposed to be developing and shot them an e-mail - turns out this is either no longer in development, or never was. They basically said that they have no plans to change the MRX Turbo Kit, as it functions very well and that performance across the power band is excellent.

 

[re-rx7]

So, I was curious as to the status of the Wastegate Actuator that Mountune was supposed to be developing and shot them an e-mail - turns out this is either no longer in development, or never was. They basically said that they have no plans to change the MRX Turbo Kit, as it functions very well and that performance across the power band is excellent.

I'm not surprised. The link i posted above will work on this turbo. Just use the extension that is with the mountune provided unit.

 

[jeff]

I'm not surprised. The link i posted above will work on this turbo. Just use the extension that is with the mountune provided unit.

Would you mind sharing what the WGDC Actual peak/hold in the best power band is from some of your MRX logs? I'm curious to see what the wastegate is actually doing.

 

[re-rx7]

Would you mind sharing what the WGDC Actual peak/hold in the best power band is from some of your MRX logs? I'm curious to see what the wastegate is actually doing.

Pretty simple. Im at 100% WGDC except for a 1000 rpm band between 4500 and 5500. Shitty
http://www.datazap.me/u/re-rx7/log-1500261428?log=0&data=3-4-8-15-31