Dyno Day with my 4.2L V8 JHM Supercharged Audi S5

Dyno Day with my 4.2L V8 JHM Supercharged Audi S5
Using a Mustang MD-AWD-500 Dyno at PHP Specialists in Joplin, MO
2012 Audi S5
B8 Body Style
4.2L V8
Performance Mods:
JHM Stage 1 Supercharger Kit and Software
K&N Air Filter
JHM Race Pipes (The catalytic converters are removed)
AWE Non-Resonated Downpipes
AWE Track Exhaust
KW v3 Coilovers (Dropped 1 inch from stock height)
Hartmann Wheels (Hartmann HTT-256-MA:M 19x8.5 ET 25)
H&R Wheel spacers (15mm front, 20mm rear)
This is what my car sounds like on the road:
• Supercharged V8 Audi S...

[@sccott8269]

Jesus that sounds so good. The V8 is easily the best engine out there no doubt

[@supie5063]

4.0t

[@Mr_Glenn]

5.2

[@Goczku]

4.0 tfsi is the best one

[@tannerc.1454]

3.0T In these tho

[@RandomGuy-ej9gr]

@@tannerc.1454 If you want to compromise on sound yeah maybe.

[@Yourmomsuccysuccy]

That’s my dream car😍 exactly how yours is

[@joshriles84]

I like that sound

[@ogkush6665]

I like that sound bro your car is very nice

[@scherer77]

Thanks! People were holding their ears toward the end. It was super loud inside the shop lol.

[@_L_X_R_X_N]

I love it!

[@audis5life764]

Nice that’s dope

[@sleepyqiong8673]

awesome!

[@fordbagger8279]

Wicked ✌️🙌

[@SamuelSchehrer]

Vielleicht sind wir irgendwie verwandt aber ich wohne hier in der USA, habe jetzt auch ein S5, super Charger kommt jetzt auch noch 💪🏼

[@faisalrahman3671]

Thanks for listing the mods, very helpful. I am thinking to do performance mods on my 2012 S5 Coupe. Approximately how much you spent?

[@scherer77]

Parts for the JHM kit were $10,054.67 and labor was $2,479.11 which included the super charger installation, intake valve carbon cleaning as well as fuel injector installation (I was close to 60,000 miles when I had it installed so I was due for carbon cleaning and fuel injectors anyways.)

[@faisalrahman3671]

@@scherer77 Thanks so much for the information. My car is at 68,000 miles, I have to find who can install it near my area :)

[@g35xgotjwt]

What exhaust are you running ?

[@scherer77]

@@g35xgotjwt AWE track exhaust with AWE non-resonated down pipes (which remove the cats)

[@eastoakland-S65feen]

Dang i want one now

[@JarettTheDon]

This car is so much pressure

[@DTHimes1988]

How is that affecting the fuel economy. What kind numbers are you getting?

[@PantherBlackAudiRS]

How's the car holding up now?

[@dracer35]

Love it. I'm in Jefferson City MO. I've got an idea for another engine swap project and I really like the idea of using the Audi 4.2 V8 like front the B7 RS4. I'm doing my research and there isn't a whole lot of info on tuning these engines and I came across your video. I was hoping you could tell me what you used for tuning software. I guess my other option would be using a standalone engine management system. Any info would be appreciated. Thanks.

[@scherer77]

dracer35 JHM flashes the ECU with their software as part of their supercharger kit. I assume the JHM software is meant to be a "safe" tune. Its safe for stock engines and drivetrains.

[@dracer35]

@@scherer77 Ah ok. Thanks for the reply. Thats pretty much what I'm seeing. I haven't found any good information on tuning the factory ECU. It's looking like my best bet I'll be to just use an aftermarket engine management system like the Megasquirt MS3 Pro. Thanks again for the info.

[@xdzeron_1859]

Some one in Poland as i remember made 1300whp in an s5 with all audi parts nothing is forged I guess it's really a tune friendly car but it's pretty expensive... Why did you go with a supercharger not a turbo setup?

[@Aa0LMAO]

don’t come at me but this is the best sound V8 besides the hellcat hemi

[@graiggeraldmapfumo3205]

Die hard audi fan here but the C63 M156 is good

[@deepestlevel]

Thats amazing, +1 sub , could you make a video of 0-60 and 402m times ? Great car

[@scherer77]

Thanks! Yes I bought a Dragy and plan to do some acceleration videos as well as some exhaust revving videos.

[@exposingdemocrats8370]

@@scherer77 where’s the times

[@Carhistory989]

Great

[@_L_X_R_X_N]

Sounds like a harrier!

[@tjkriesen8024]

Nice car.. wish I could afford a supercharger for mine. The whine alone would be enough for me

[@scherer77]

Tj Kriesen Thanks man. My exhaust is so loud I can't hear the supercharger lol.

[@kenny10rendon]

Put a paperclip in your alternator

[@nauticalobbyz-8972]

Whats the top speed supercharged

[@sid1am]

Those are actually impressive numbers. I didn’t know the JHM STage 1 kit works on the Automatic s5s too. You think the 6mt will put more power?

[@scherer77]

Theoretically the 6mt should make more power, since it has less loss to the wheels.

[@sid1am]

Brett Scherer and higher redline. How’s the kit so far? No leaks? Internals still holding? Have you tried going higher than 10psi? 15?

[@scherer77]

@@sid1am The kit has been solid. I even drove it up to the top of Pikes Peak and had no issues with it. I haven't upgraded it past Stage 1, so I'm still around 9 to 10 psi.

[@liasimpson282]

@@sid1am They both have 7000rpm redline. Moreover, anything will affect power to wheels on the dyno. If you have lighter rotors and rims considering you're in a perfect world you'll see more power to the wheels because of less unsprung weight.

[@onlydavid]

You haven’t posted in a long while… As the owner of a 2011 S5 and a 2013 RS5, I feel like the 4.2V8 is quite temperamental and scary to modify. Your car still in working order?

[@scherer77]

No sir its not running haha. The head gasket blew. Its been sitting in my garage for a couple years now. Haven't decided if I want to fix it or sell it as is and get something else. The repair bill will be $20k or so for an engine rebuild or just buying a used motor for it.

[@kevindiaz5394]

Oh yeah just have to keep up with the carbon build up

[@megatar3]

Hey man, Nice Vid. After all these years would you recommend installing the kit on a v8 s5 or do you regret it? I’ve got a 2012 auto with only 50k miles and I’m debating between saving up the 8-10k to do the install (unimpressed with stock power) or just using that money for a down payment on an M3 XD

[@scherer77]

Thanks brother. I'll be honest with you. I'd hold off on supercharging it. The S5 V8 isn't built for more power than it has. My head gasket blew after having it supercharged for about 30,000 miles. I don't have proof that the supercharger caused this, but I suspect its the case. Also, the supercharger maintenance is annoying. The blower needs regular oil changes and you have to remove the front bumper to change it's oil. This supercharger kit will result in your S5 having more power than a M3 has, but in the long term, I think the S5's reliability will suffer.

[@megatar3]

@@scherer77 thank you so much, I needed to hear this from someone who’s actually done it. Hopefully you enjoyed it while it lasted and can sleep well at night knowing your saving other people like me from the same heartache. Also, that maintenance sounds like a nightmare…not something JHM advertises on the forums 🤔 Thanks again man!

[@trandanh2866]

Whats the reliability like? , is the car able to be a daily?

[@scherer77]

Yup you can use it as a daily. The supercharger needs its oil changed separately from the engine oil, and to do that you need to remove the front bumper. If you drive a lot, you'll be removing the bumper quite often.

[@therealjoshtodd]

Super sick you did all those mods, but does make me a little sad for my S5 if even with $10k dumped into it with a supercharger it'll still be under 400tq on a dynojet. Meanwhile when I had a 2013 mustang it was putting down over 400 with just a CAI and a $400 bama tune :-(

[@scherer77]

For sure. Audi is expensive horsepower. My next car is going to have enough power straight from the factory haha. I don't have the energy to go through a large number of mods again.

[@therealjoshtodd]

@@scherer77 I also have a C7 Corvette Z06. 650hp right from the factory and you can still mod it. You can pick a VERY gently used one up right now for 60k. Not a bad deal

[@scherer77]

Might sound funny but I've always owned an all wheel drive car haha. How easy is it to lose the backend on a Corvette?

[@therealjoshtodd]

@@scherer77 On the stock tires, about as easy as a sorority girl. The traction control and stability management do wonders, but the stock tires just can't handle the power of the Z06. The Toyo R888Rs are amazing though. They don't suck in the rain and their dry traction is INSANE. This is my Z06 with R888Rs. kzbin.info/www/bejne/rJ3ZZ2h5gbSpf7c go to 49 seconds. That is me doing a redline clutch dump trying to do a massive burnout and that was the most I could get (and with cold tires to boot). So in short, yes it's harder to handle than an AWD, but 1) it's more fun that way 2) the computer helps out a lot and 3) it ain't bad if you get the right tires.

[@scherer77]

Josh Todd Haha! Man your Z06 looks sick. There's not a single piece of chrome on the outside of it. I had to black out my window trim. Audi for some reason likes to put chrome trim around windows.

[@muckman5509]

signature Audi FSI V8 sound. To all you TFSI audi wana beess your not a real audi owner until you own a N/A AUdi V8. :))))))))

[@chrispapa1587]

Do you need to do any engine modifications to support supercharger?

[@scherer77]

Its not required, but suggested. If you improve the motor resilience, the longevity increases.

[@aaronmathew3553]

Hey would this be possible on a 2012 4.2l Audi A8l

[@scherer77]

Not sure Aaron. Might have to ask JHM if they have a kit for an A8.

[@megabunnydeath]

How does the tiptronic trans hold up to the additional power?

[@scherer77]

The transmission doesn’t have any issues with the power.

[@megabunnydeath]

@@scherer77 you didn't have to do any TCU updates like for the DCTs on later models?

[@scherer77]

@@megabunnydeath Nope. The DCTs are completely different. They actually have a harder time handling extra power than the tiptronic does.

[@DRDWISCONSIN]

How much did you spend in mods?

[@scherer77]

A grand total of $16,512.01

[@davidterhune2352]

How's the transmission holding up?

[@scherer77]

The transmission is solid. It can actually handle way more power than what I'm giving it.

[@timma100AR]

@@scherer77 good to hear, it's a beautiful car and those numbers are amazing. Are you considering the stage two intercooled jhm kit or sticking with stage one? I've got an 09 S5 auto, huge fan of your car man more videos would be awesome!

[@scherer77]

@@timma100AR Appreciate it man. My S5 has been a project of mine for some time now. Glad you like it! I'm going to be sticking with the Stage 1 for now. I'm a little unsure about how effective JHM's Stage 2 is. I need to see some better reviews on it first.

[@Sinister06Ion]

Awesome numbers and beautiful car! Sounds amazing man!! I just picked up a 12 S5 coupe the same color actually and have been looking into power adders supercharger seems the way to go. Thanks for sharing the video

[@scherer77]

@@Sinister06Ion Thanks Eric. Happy to help!

[@nemisis5683]

How is it only 300 whp??

[@jayrom6237]

Its not stock is 354 lol

[@takingoff9177]

How much did this cost?

[@scherer77]

Parts for the JHM kit were $10,054.67 and labor was $2,479.11 which included the super charger installation, intake valve carbon cleaning as well as fuel injector installation.

[@takingoff9177]

Brett Scherer are y’all located in Texas?

[@scherer77]

@@takingoff9177 Kansas City, MO actually

[@Goczku]

Why not rs5?

[@scherer77]

RS5 wasn't for sale in the US when I purchased my S5.

[@JarettTheDon]

what year

[@scherer77]

2012

[@chris200999]

How the hell do you afford this lol please put me on some game bro 😩

[@mannixautos378]

Are you on instagram?

[@chris200999]

Mannix Auto's yeah

[@PapiAndrey]

@@chris200999 whats your ig name? I'll dm you

[@chris200999]

@@PapiAndrey kushington

[@Ekooo0]

Love these cars but too embarrassed to have something that slow

[@scherer77]

Driving something slow prevents speeding tickets. Silver lining...

[@Ekooo0]

@@scherer77 Nuh huh... When u have something sounds and looks that good. Balls shouldn't be optional

[@songsfromspringcreekave821]

@420 Friendly This 420 guy... I like him, lol! Spot on response!

[@FLYBYMEDIA214]

Can't supercharge high compression engines like these without internal upgrades. Wasn't going to last long.