JR 2.5Race vs 2.8Race

dr_dirtg · 11-17-2018, 12:28 AM

After many years of owning my D, I decided it's time to do the ABCDelete and JR tune.

I am not sure which tune I want, can anyone tell me their experience between a JR 2.5Race and JR 2.8Race?

I choose JR for a few reasons which are not even based on comparison with any other tunes. So please only JR experience: is there much of a difference between these two tunes, where exactly do you see it/feel it, and any significant difference in 1/4 mile times?

Thanks

Mik325tds · 11-17-2018, 08:44 AM

The major difference for me is that 2.8 doesn't smoke as much. If you get an ATM intake, even under full fueling and high rpms there's very little smoke.

dmanb2b · 11-18-2018, 01:09 PM

Quote:

Originally Posted by Mik325tds

The major difference for me is that 2.8 doesn't smoke as much. If you get an ATM intake, even under full fueling and high rpms there's very little smoke.

+1

lnxguy · 11-21-2018, 10:18 PM

JR 2.8 +ATM intake. Done.

Chief Orman · 11-28-2018, 08:03 PM

2.8... don't even think about the 2.5

dr_dirtg · 11-28-2018, 10:27 PM

Quote:

Originally Posted by dr_dirtg

After many years of owning my D, I decided it's time to do the ABCDelete and JR tune.

I am not sure which tune I want, can anyone tell me their experience between a JR 2.5Race and JR 2.8Race?

I choose JR for a few reasons which are not even based on comparison with any other tunes. So please only JR experience: is there much of a difference between these two tunes, where exactly do you see it/feel it, and any significant difference in 1/4 mile times?

Thanks

so anyone with experience with both tunes:
other then less smoke, any difference with butt dyno, real world 1/4 mile time, fuel mileage?

fsd350 · 11-28-2018, 11:03 PM

Quote:

Originally Posted by dr_dirtg

so anyone with experience with both tunes:
other then less smoke, any difference with butt dyno, real world 1/4 mile time, fuel mileage?

Do the 2.8 IMO. Upgrade cost from 2.5 is reasonable. Original purchase is taken into consideration. Butt Dyno - definite improvement overall from 2.5. Don't have a 1/4 time to report. MPG is comparable. No more haze with poor mans CAI courtesy of DWR. (Another HUGE modification founder and contributor banned from this forum)

dmanb2b · 11-29-2018, 09:13 PM

Quote:

Originally Posted by fsd350

CAI courtesy of DWR. (Another HUGE modification founder and contributor banned from this forum)

This forum is quickly dying

dr_dirtg · 11-29-2018, 11:31 PM

Quote:

Originally Posted by dmanb2b

This forum is quickly dying

maybe the bmw stealerships got together and lobbied the forum to remove the better sources of info or solutions etc.

Miko226 · 12-02-2018, 03:42 AM

Quote:

Originally Posted by dmanb2b

This forum is quickly dying

Wow... Just learned this.

11-17-2018, 12:28 AM	#1
dr_dirtg Private First Class 39 Rep 167 Posts Drives: 335d Join Date: Jul 2013 Location: Canada iTrader: (0)	JR 2.5Race vs 2.8Race After many years of owning my D, I decided it's time to do the ABCDelete and JR tune. I am not sure which tune I want, can anyone tell me their experience between a JR 2.5Race and JR 2.8Race? I choose JR for a few reasons which are not even based on comparison with any other tunes. So please only JR experience: is there much of a difference between these two tunes, where exactly do you see it/feel it, and any significant difference in 1/4 mile times? Thanks
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11-17-2018, 08:44 AM	#2
Mik325tds Major 807 Rep 1,191 Posts Drives: 335d M-Sport Join Date: Jul 2014 Location: Greater Detroit iTrader: (0)	The major difference for me is that 2.8 doesn't smoke as much. If you get an ATM intake, even under full fueling and high rpms there's very little smoke.
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11-21-2018, 10:18 PM	#4
lnxguy Lieutenant Colonel 357 Rep 1,724 Posts Drives: 2009 335D Join Date: Jun 2016 Location: Barrie iTrader: (1)	JR 2.8 +ATM intake. Done. __________________ '09 335D
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11-28-2018, 08:03 PM	#5
Chief Orman Major 671 Rep 1,442 Posts Drives: 335D 2010 Join Date: Jun 2013 Location: East Bay, Nor Cal iTrader: (0)	2.8... don't even think about the 2.5
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