[dbworld4k]

Figured I'd post up a real world dyno of a car on pump gas, none of this idealized E85 nonsense :P J/K Huge thanks to Dzenan@PTF for all his help with getting my car running right and making it fast as hell!

Mods:

• Wagner FMIC
• VRSF Downpipes
• Cobb AP2
• ProTuning Freaks custom E-Tune (tuned for 91 octane)
• 93 Octane

History of the car:

• 95k miles
• New coils/spark plugs 5k mi ago
• Walnut blasting 5k mi ago

All three runs were done under the same conditions on the same day, within 30 minutes.
Conditions: 61.64 °F, 29.47 in-Hg, 19% humidity.

EDIT: Got the run files from the shop. Here are the STD #s.


Original SAE graph:
Run 3 represents the Cobb OTS "Baseline" Map which showed as shockingly lean on my car. Even the PTF tunes (Run 1 and Run 2) are slightly lean in the midrange. Hopefully I can get that sorted out just to be on the safe side.

I never expected it to crack 400WTQ, I was expecting around 370-ish, especially as the dyno operators told us that this specific dyno is known as a heartbreaker and reads 5-10% lower than most other shops in the area. In any case, I'm VERY happy with the gains compared to the baseline run (note: this is not a 100% stock run, as the downpipes are on the car, but rather stock-like mapping.

Cheers!

[jpirelli]

So what exactly do you gain from the PTF tune over the OTS map? Looks almost the same.

[dx1541]

Yeah and Why a heartbreaker dyno? This is a dynojet for god sakes. Not talking about typical load dynos that consistently run lower figures. Sorry but not trying to dishearten you but a jb4 does much better than that for the mods and fuel you run. 365 whp was what I got the day I installed my jb4 spun on a brand new 224x dynojet some time last year which is consistent with what most will get and I baselined 272 then. Pure 93 oct on stock intercooler. But anyway as long as you're happy that's what matters.

[dbworld4k]

Originally Posted by jpirelli

So what exactly do you gain from the PTF tune over the OTS map? Looks almost the same.

I don't know what OTS maps put down, but I think on average I've seen similar whp and 370-380ish TQ if I'm not mistaken? The above is also SAE corrected, I'll try and obtain the STD numbers soon. Moreover, the OTS maps would never run on my car because of my stiff wastegates. The OTS maps were utter shit in my case. I have an older thread that explains all that.

Originally Posted by dx1541

Yeah and Why a heartbreaker dyno? This is a dynojet for god sakes. Not talking about typical load dynos that consistently run lower figures. Sorry but not trying to dishearten you but a jb4 does much better than that for the mods and fuel you run. 365 whp was what I got the day I installed my jb4 spun on a brand new 224x dynojet some time last year which is consistent with what most will get and I baselined 272 then. Pure 93 oct on stock intercooler. But anyway as long as you're happy that's what matters.

I'm not disheartened at all. It's the delta that I'm concerned with, not to mention how seriously fast the car is vs. stock.

Your dyno numbers are meaningless to compare to another car at a different shop at a different day. Absolute dyno numbers are meaningless.

[jpirelli]

Originally Posted by dbworld4k

I don't know what OTS maps put down, but I think on average I've seen similar whp and 370-380ish TQ if I'm not mistaken? The above is also SAE corrected, I'll try and obtain the STD numbers soon. Moreover, the OTS maps would never run on my car because of my stiff wastegates. The OTS maps were utter shit in my case. I have an older thread that explains all that.

I'm not disheartened at all. It's the delta that I'm concerned with, not to mention how seriously fast the car is vs. stock.

Your dyno numbers are meaningless to compare to another car at a different shop at a different day. Absolute dyno numbers are meaningless.

In your first post, you say that the Run 2 was the OTS map. Is that correct? So they put down about the same as the Run 1 which you say is PTF.

Run 2 represents the Cobb OTS "Baseline" Map which showed as shockingly lean on my car. Even the PTF tunes (Run 1 and Run 3) are slightly lean in the midrange.

[dbworld4k]

Woops, my mistake. I should've said Run 3 was the Cobb OTS Baseline map. No Cobb OTS Baseline map makes anywhere near 330 and 400 lol. The OTS Baseline maps are meant to simulate stock BMW mapping.

PTF runs were # 1 and 2. Hope this clears up the confusion!

[jayzF30]

Excellent results for 91 octane! Very consistent runs. Do you have any higher octane in your area or maybe meth? With all that torque on just 91 octane the car must be a fun daily driver without impact to fuel mileage like on E85. I wonder what STD numbers say too. SAE tends to read quite a bit lower.

[RennenPerformance]

Very nice numbers!

[MR2 Josh]

Your correction factor above is only 0.98 so it's actually reading lower than what the car was physically putting down. 2% lower to be exact. This is due to temp/barometric pressure/humidity being better/more ideal than the sae standards that are input from dynojet. STD correction is typically 1.04. Uncorrected (what it physically was putting down) should be around 343whp and 410wtq.

Also, your fuel curve is very lean. I'd be cautious and find out if it was the dyno sniffer reading wrong or if that's your actual fuel curve. If it is actual then it needs to be fattened up. Might explain why it seems to be making less power than what others have made.

[jayzF30]

AFR dyno sensor seems to just be reading 1 point leaner even with the stock map. I would say the sensor just was not pushed in far enough down the exhaust pipe and is picking up some ambient air. I know PTF targets their fuel on pump gas in high 11s in the higher rev range and no way it is that lean.

This dyno seems lower reading than average as a lot of Dynojets will show stock numbers at 290-295 range with those mods on the car. This one is with downpipes and intercooler at 280 putting the stock car at probably 250-260 range at the wheels.

[Jnat]

I'm sorry but I'm confused. Which run is which? As I understand it run 2 is no tune, run 3 is OTS and run 1 is PTF?

[jayzF30]

OP said run 3 is a stock OTS map so it would be Stage zero as far as I understand. They are not listed in order.

[jpirelli]

Originally Posted by dbworld4k

Woops, my mistake. I should've said Run 3 was the Cobb OTS Baseline map. No Cobb OTS Baseline map makes anywhere near 330 and 400 lol. The OTS Baseline maps are meant to simulate stock BMW mapping.

PTF runs were # 1 and 2. Hope this clears up the confusion!

Makes sense now. I thought you meant that was an OTS stage 2+ or something and so I thought the PTF tweaking didn't give you any gain over that. Good stuff.

[Jnat]

Originally Posted by jazze90

OP said run 3 is a stock OTS map so it would be Stage zero as far as I understand. They are not listed in order.

I guess what would have been nice is to see map 0, OTS and the pro tune. Map 0 could have been the baseline, would be nice to see the pro tune in relation to the OTS. JMHO!

[dbworld4k]

FWIW, I ran a Dinan S2 E39 M5 tonight that is known to be neck and neck with E92 M3s. He put down around 380whp and 345wtq. Did 5 runs against this M5 and I pulled every singly time from 40-130. Ended with me being about 1.5-2 cars ahead. Needless to say, this thing MOVES!

Originally Posted by jazze90

Excellent results for 91 octane! Very consistent runs. Do you have any higher octane in your area or maybe meth? With all that torque on just 91 octane the car must be a fun daily driver without impact to fuel mileage like on E85. I wonder what STD numbers say too. SAE tends to read quite a bit lower.

I've emailed requesting the electronic file so we can take a peek at the STD numbers. I fill up with 93 octane here in Chicago, but I am from Toronto where higher than 91 is not that readily available, so to play it safe I have it tuned for 91. No plans to add meth injection, I don't even know where to begin with that. And oh yes, it is the ultimate daily driver! So much low-end torque makes for effortless driving around town and overtaking in 6th is a breeze.

Originally Posted by RennenPerformance

Very nice numbers!

Thanks!

Originally Posted by MR2 Josh

Your correction factor above is only 0.98 so it's actually reading lower than what the car was physically putting down. 2% lower to be exact. This is due to temp/barometric pressure/humidity being better/more ideal than the sae standards that are input from dynojet. STD correction is typically 1.04. Uncorrected (what it physically was putting down) should be around 343whp and 410wtq.

Also, your fuel curve is very lean. I'd be cautious and find out if it was the dyno sniffer reading wrong or if that's your actual fuel curve. If it is actual then it needs to be fattened up. Might explain why it seems to be making less power than what others have made.

Yeah the AFRs look scary. I checked my data logs and those readings are much lower, I guess the shop's sniffer wasn't too accurate.

I'll post an update once I get the uncorrected numbers.

Originally Posted by jazze90

AFR dyno sensor seems to just be reading 1 point leaner even with the stock map. I would say the sensor just was not pushed in far enough down the exhaust pipe and is picking up some ambient air. I know PTF targets their fuel on pump gas in high 11s in the higher rev range and no way it is that lean.

This dyno seems lower reading than average as a lot of Dynojets will show stock numbers at 290-295 range with those mods on the car. This one is with downpipes and intercooler at 280 putting the stock car at probably 250-260 range at the wheels.

Yeah, that 282/283 reading still accounts for the DPs and FMIC. I figured it reads lower to begin with, and that's precisely what the shop warned us all about from the start. If anything, that makes me feel more confident that it probably makes more than what I saw

Originally Posted by jazze90

OP said run 3 is a stock OTS map so it would be Stage zero as far as I understand. They are not listed in order.

Yea, I really need to post a new chart where the runs are in order.

Originally Posted by JNAT*

I guess what would have been nice is to see map 0, OTS and the pro tune. Map 0 could have been the baseline, would be nice to see the pro tune in relation to the OTS. JMHO!

I agree whole heartedly! Unfortunately, the OTS Stag 2+ Cobb map simply won't work on my car when I go past 1/3rd throttle. It always triggers limp mode. I wish it worked, because it would've been the perfect dyno run with a run each at Stage 0, Stage 2+ OTS, and then PTF...

[Mit_Boost]

Originally Posted by jpirelli

So what exactly do you gain from the PTF tune over the OTS map? Looks almost the same.

Common to gain ~40 WHP/50 WTQ when going from OTS Maps to a PROtune

Originally Posted by dx1541

Y365 whp was what I got the day I installed my jb4 spun on a brand new 224x dynojet some time last year which is consistent with what most will get and I baselined 272 then. Pure 93 oct on stock intercooler.

Beauty of running real gas (93) vs. crap ACN 91 -- Allows you to run a much more aggressive boost curve along with achieving the timing curve, minimum timing corrections.

[dbworld4k]

STD corrected graph uploaded!

Hope this helps.

[silver07335i]

Dbworld4k, thanks for sharing your PTF e-tune results! Will you be getting another e-tune to take advantage of the 93 octane fuel?

[jayzF30]

I would add meth on there eventually to squeeze quite a bit more with the added octane.

[dbworld4k]

Originally Posted by jazze90

I would add meth on there eventually to squeeze quite a bit more with the added octane.

I wonder what it will put down with meth...

[jayzF30]

I saw a discussion on Facebook on this. Its a 91 octane map and it does this with just 13.5psi where peak power is made because of 91 octane. Now imagine what these guys can do if they upped boost on higher octane.

Originally Posted by jazze90

I saw a discussion on Facebook on this. Its a 91 octane map and it does this with just 13.5psi where peak power is made because of 91 octane. Now imagine what these guys can do if they upped boost on higher octane.

No need to "imagine" anything...it's been done 1,000+ times already lol