Dyno Testing the Jackal Motorsports Stage 1 Tune | Part 2 of Audi S4 4.2L ECU tune

I head to the SSS Motorsports dyno to test the ‪@jackalmotorsports‬ Stage 1 93 fuel tune ECU against my stock ECU. With dyno graph results in hand, I show what the stock horsepower and torque curves look like for the BHF motor in the B7 S4 then compare that to a Jackal tuned set of curves.
Chapters:
00:00 - Dyno day prep & predictions
01:44 - What to expect at the dyno
07:38 - Baseline stock ECU pulls
11:06 - Jackal ECU pulls
13:18 - Vroom, popopopopop
13:31 - Tune results and comparison
19:48 - Next project peek

[@jackalmotorsports]

This definitely seems like a calibration issue on the dyno side, but, your top end should not be falling off, HP should pull all the way to redline, we will work to find out whats going on :)

[@WarheadBMW]

Glad to see the progress. I am happy to see that you went with Jackal. I haven't had a bad experience with either tune.

[@donnys2965]

ooooooo, thats awesome shop. Awesome to see shop thriving in Canada

[@mtbaddict6843]

Sounds labored, does not sound like a ripper! Hopefully you can get everything sorted and come back with a beast!!

[@Chris-lz7sx]

Well done love your Channel. Chris from Montreal :)

[@ezequielstersciuckz9330]

Nice!! Excellent base engine for head working and getting very powerful and cool sounding machine!!!

[@brandonlando8044]

Bro this video is fire

[@michaelromero3324]

Enjoying your channel. Interested to see what the problem is.

[@A4orce84]

Great video, hoping you get everything sorted out! Hmm, for the teaser I'm going to guess D2 Audi A8 maybe? Nice job sir!

[@jenny80myles]

It has S8 wheels.

[@neilsimms2676]

Love the videos, keep em coming… I note that when you completed your oil change you added Ceratec, it states that it isn’t to be used in cars with wet clutches.

[@FigureItAudi]

Thanks Neil. Correct - and I'll openly admit I'm no automotive expert - but being a manual transmission on a passenger vehicle, I don't think it's possible to have a wet clutch in that configuration. Also this is complete opinion but with how hard the S4 V8 had to work on the dyno that day, I attribute its survival to the ceratec protecting all the places in an engine that are going to get damn close to coming metal-to-metal. Not unlike how all the Valvoline sponsored people talk about VR1 protection when they change it in for high stress usage.

[@neilsimms2676]

@@FigureItAudi Hi, thanks for the reply, I think I had a doh 🙄 moment! I’m sure it’s fine to put in the “engine oil” but not the “gearbox oil” with the wet clutch! Me being stupid!

[@meccafastcustoms]

I’m fallowing alone great video👍🏻I have a b6 s4 with jackal stage 2 I bought from eBay I have an automatic is a huge difference on power from stock 😊now I’m tempted to find a dyno to see what numbers I’m putting out I have no mods stock

[@frankalarcon635]

Great to see the progress on the S4. The engine sounds great! Interesting results on the dyno.. A lot less less than i would've expected in stock form and was definitely expecting higher WHP numbers on the jackal tune.. Perhaps the dyno does need calibrating like Jackal Motorsports mentioned.?

[@FigureItAudi]

As a numbers man, I have to be objective till I know for certain what is and isn't working on the car. It won't take much effort for me to confirm a few things when I get to work on the S4 again soon (and if I'm being totally honest, there's a few things I'm going to upgrade while I'm in there again). The beauty of having 2 ECUs is that I can progress with S4 improvements and still have the ability to swap and test ECUs to maintain a fair comparison on performance. I truly not that concerned, though. The project I'm starting now is going to be more work than the S4 ever was :).

[@frankalarcon635]

@@FigureItAudi Really looking forward to seeing what's under the covers for the next project.. I have a hunch I know what it is ;)

[@hectorrocha7366]

Love the build man, just curious what rear lip is that? Also where’d you source out the black rings? Thanks man 🤛🤛

[@FigureItAudi]

Hi Hector - The rear bumper and lower valence is just the factory DTM rear setup which came standard on these 25quattro S4s, DTM edition S4s, and even a few special edition DTM pack A4s had them too. The rings are just spray painted.

[@ronisuominen7707]

Something wrong with it for sure, cant wait for you to sort it out👍

[@ScottZupek]

I have a B7 S4 (Avant) and it should pull through that rev range quicker than that. Something seems to be "dragging" your drivetrain. I assume after swapping ECU's you ran a throttle body adaption? (which you should always do on VAG products after ECU swaps, battery swaps, etc) I hope you figured it out by now.

[@DOMS4.]

I think its a mix of dyno and car issues. It seems like it drops off top end even before I saw the cart. Mine pulls all the way up, granted I am stage 2 but still.

[@payne460]

Can't wait to see whats the problem cause I was very surprised of the power chart

[@FigureItAudi]

Yeah, it's a real head scratcher at the moment. The nice part of having 2 ECUs is that if I uncover, let's say, an air flow issue, I can make modifications to the car and still redo the dyno testing fairly since I can pop the stock ECU back in for fresh baselines.

[@aefan]

Check compression and do a leak down test. If acceptable, then a calibration issue.

[@dondbg3751]

Great video. why the aircon is running? 7:43

[@FigureItAudi]

It automatically is "on" most of the time you start the car but the compressor doesn't run (the ECON button is lit up in that shot). In fact, it was barely over 0 degrees Celcius that day and you'll see the heat is running in the car. So, A/C was definitely not running.

[@Pitman556]

So 6whp with pops and bang is the stage 1 results?

[@markb6s4]

My guess Stock: 250whp Tune: 310whp

[@mr_eastmotorsports]

The intake flap mod screwed up hp. I installed a jhm ecu with everything stock and dyno 355

[@meccafastcustoms]

You have stage 1 or 2?

[@3inchmafia]

Hey man did you end up figuring out what the problem was? And the real numbers? Thanks!

[@FigureItAudi]

There's a whole new series out on the 25Q where I continue investigation and do more mods - you should watch it :) Another dyno session will be coming this fall.

[@GalenMelchert]

You guys turned traction control off right?

[@FigureItAudi]

Sure did, that was the first thing we did before starting the baseline pulls.

[@onlydavid]

So… did you @Figure it Audi? Being the owner of an S5, RS5 and Touareg all 4.2 V8s… this video has caused me hot sweats and anxiety. Have you tried another dyno? Know what VCDS says? Any update coming or on the way? Please help.

[@FigureItAudi]

Deep breaths Davy. Yes, I've had to buy a few things to be able to test the S4 properly and will put create a video after the S8 block tear down is done. The dyno shop had another AWD car come through and put down as much power as anticipated, so the situation is becoming more likely a me problem. Worst case scenario is a total loss of compression in any or multiple cylinders and a full rebuild is necessary.

[@nessunamore]

​@@FigureItAudiI would think that a downed cylinder should cause a misfire. You mentioned that you broke a valve. Was it the "suction jet pump" ? I don't remember if the 4.2 has those but you can't glue it when it breaks and it causes all kinds of issues when it goes. I personally call it "the God valve of everything." I'm also thinking that your cats are plugged. Since you have the rear o2 spacers there's no way for the car to know if the cats are bad. Id take it to a shop that can analyze you exhaust gasses to make sure the cats are functioning. That means a long hot drive. Bring a scan tool to make sure your fuel trims are within spec

[@nessunamore]

​@@FigureItAudicould be timing as well. Chains could be stretched enough to be down on power but not enough to cause a light.

[@mattlandgren4811]

I’m so confused 201 how

[@Heartbeat1991]

Judging by your pops and bangs, you still have cats?

[@FigureItAudi]

No, at the time the exhaust setup was OE downpipes with no pre or main cats, plus a totally stock S4 cat back exhaust system.

[@Heartbeat1991]

@@FigureItAudi gutted them? Usually without cats there’s shotgun bangs. Odd. Still watching the newer updates.

[@anthonymustache917]

good videos but owning a b6 s4 this one sounds like its down a hole

[@FigureItAudi]

Go checkout the newest video on the S4 - she's all good and making plenty of power.

[@MrxOnurb]

S4 4.2 V8 is stock 340hp, this is way to low on dyno , cloged cats maybe..

[@FigureItAudi]

Clogged cats are not a possible issue for me 😉

[@oakkblackbird]

That steering wheel needs to be replaced with a flat-bottomed one.

[@realreviewer294]

Low compression maybe. I've never seen such labored dyno pulls. Is your tunner going WOT ? All post dyno info info is blah blah until you have "regular numbers" stop lying to yourself. Take it else where and go back to basics and check your engine thoroughly.

[@theenglishtrucker1849]

Down on power...needs a carbon clean maybe?

[@mach1743]

The BBK B7 S4 engine is common-rail multi-point fuel injection and not FSI like the B7 RS4. Therefore does not suffer from carbon build up..