World's Fastest All Motor B8 S5 V8 12.6 @ 108 mph VIDEO INSIDE!!!

[jaybquick@JHM]

JHM Mod List:

JHM B8 S5 Tuning - Call For Pricing!

JHM Test Pipes

JHM FULL Cat Back

JHM Lightweight Flywheel/Clutch Combo

JHM Solid Short Throw Shifter

JHM Solid Linkage w/ Cross Rod

JHM Intake Spacers

JHM Lightweight Rotors

JHM Lightweight Crank Pulley


Thanks again everyone for the continued support. Because of you guys, we are able to develop and push this platform to new limits. All of the parts that were on our JHM S5 during this run are currently available for purchase.

Follow our build thread on this S5 for more updates HERE.

If you have any questions please contact [email protected] or give us a call at 209-968-0077

Stay tuned for more!

JHM

[Blackstallion]

Congrats--Love it!! What's next...I can hear it--CAN'T WAIT!

[DreDay]

Awesome. I need test pipes and solid shifter... I loved my shifter in my S4!

[Nastybutler]

8/10 of a second faster then my A5, and probably only a couple tenths faster if I was running E85. I'm really doubting this "World's Fastest" claim.

[LINDW4LL]

8/10 of a second faster then my A5, and probably only a couple tenths faster if I was running E85. I'm really doubting this "World's Fastest" claim.

N/A 4.2 S5s are slow.

[Nastybutler]

N/A 4.2 S5s are slow.

I guess so. Never thought I'd feel bad for S5 owners, but I kinda do if this is the upper limits of that platform without resorting to a supercharger.

[LINDW4LL]

I guess so. Never thought I'd feel bad for S5 owners, but I kinda do if this is the upper limits of that platform without resorting to a supercharger.

Only feel bad for the 2012-older owners. The 3.0T with tune/pulley can do high 11s...

[Jake@JHM]

8/10 of a second faster then my A5, and probably only a couple tenths faster if I was running E85. I'm really doubting this "World's Fastest" claim.

A mid 13 sec car is vastly different than a mid 12 sec car when it comes to drag racing. However, that is the fasted documented all motor S4 1/4 mile run.

[chrissurfr]

Would be cool if you guys did some RS5 mods next :) 11.5 all motor would be epic

[Nastybutler]

Only feel bad for the 2012-older owners. The 3.0T with tune/pulley can do high 11s...

I did mean the 4.2 V8 S5's as that's what we're dealing with here. I realize the 3.0 is a whole different animal. I guess the auditory high of the V8 is just too addictive to let go of for some folks.

[Jake@JHM]

Would be cool if you guys did some RS5 mods next :) 11.5 all motor would be epic

In due time!

I did mean the 4.2 V8 S5's as that's what we're dealing with here. I realize the 3.0 is a whole different animal. I guess the auditory high of the V8 is just too addictive to let go of for some folks.

That sound is very intoxicating!

[Nastybutler]

A mid 13 sec car is vastly different than a mid 12 sec car when it comes to drag racing. However, that is the fasted documented all motor S4 1/4 mile run.

My car is mid 13 seconds with 90 octane gas. If I put E85 in it, I'd probably be within 2 or 3/10ths of your V8. Not that vast of a difference when you consider all I have is just a tune and a test pipe. Since there's no E85 within 1000 miles, I'll likely never know for sure.

Not bagging on your build, I'm just shocked with as little as I've done to my tiny engine it's within shouting distance of a car with twice the displacement and cylinders. Forced induction is a hell of a thing.

[LINDW4LL]

I did mean the 4.2 V8 S5's as that's what we're dealing with here. I realize the 3.0 is a whole different animal. I guess the auditory high of the V8 is just too addictive to let go of for some folks.

Disregard, then! I figured that may be the case.

Yeah. Despite not being fast, the V8 still makes for a solid cruiser and sounds great!

[Jake@JHM]

My car is mid 13 seconds with 90 octane gas. If I put E85 in it, I'd probably be within 2 or 3/10ths of your V8. Not that vast of a difference when you consider all I have is just a tune and a test pipe. Since there's no E85 within 1000 miles, I'll likely never know for sure.

Not bagging on your build, I'm just shocked with as little as I've done to my tiny engine it's within shouting distance of a car with twice the displacement and cylinders. Forced induction is a hell of a thing.

We were on pump gas too with just basic bolt-ons, and if we did e85/race gas it would also improve. We have since added forced induction on the S5 and it is well.. a lot faster

My B7 A4 2.0T did 13.3 on the k03 as well. The 2.0T is a sweet platform.

[SLU_S5]

Mid-12s is definitely impressive for this car (especially without a SC)

But...

Will JHM be posting a dyno sheet for this (or even just for the tune)????

We don't quantitatively know what kind of power it's putting down. There is no doubt that you added some serious power to the car but the problem is that nobody knows how much. That's why i'm slightly more inclined to get the APR tune at this time - I know exactly what I can expect in terms of a performance increase.

Drag times are certainly helpful to know how quick it is in reality, but I bet you could also shave off a little time in an otherwise stock car without actually adding any power - Tell your lightest employee to do a run on an almost empty fuel tank, an empty trunk, with no spare tire.

[Jake@JHM]

Mid-12s is definitely impressive for this car (especially without a SC)

But...

Will JHM be posting a dyno sheet for this (or even just the tune)????

We don't quantitatively know what kind of power it's putting down. There is no doubt that you added some serious power to the car but the problem is that nobody knows how much. That's why i'm slightly more inclined to get the APR tune at this time - I know exactly what I can expect in terms of a performance increase.

Drag times are certainly helpful to know how quick it is in reality, but I bet you could also shave off a little time in an otherwise stock car without actually adding any power - Tell your lightest employee to do a run on an almost empty fuel tank, an empty trunk, with no spare tire.

You have it backwards.

With the 1/4 you see exactly how much faster/ the performance gains in the real world.

Dyno? That is a calibration tool. The dyno will give you mixed results all of the time. You will see cars with very impressive dyno sheets but when it comes to real world performance they are slow.

APR is a good brand.

Here are some reviews about or 4.2 tuning is the B6-B7 S4 platform. http://www.audizine.com/forum/showth...ustomer-review


Light driver/missing spare will NOT take a mid 13sec stock car and put it into the mid 12s. You may see a 10th by doing that MAYBE.

[SLU_S5]

I'm not asking about how fast it is - I already know its very fast for the NA 4.2. What I (and probably everyone else) would like to know is how much power it has. To figure that out, the car needs to be dynoed (unless you're a physics/math wizard).

The problem here is that virtually none of your competitors sell their products by posting 1/4 mile times. Its very tough to directly compare who has a better performing product.

It's also tough to tell how it performs across platforms. Yes, its a 4.2, but it's not the same 4.2. Past performance does not imply future results.

I don't doubt JHM products by any means - In fact, I've been considering your tune for a while. I just don't understand the resistance to posting some dyno results.

[Jake@JHM]

I'm not asking about how fast it is - I already know its very fast for the NA 4.2. What I (and probably everyone else) would like to know is how much power it has. To figure that out, the car needs to be dynoed (unless you're a physics/math wizard).

The problem here is that virtually none of your competitors sell their products by posting 1/4 mile times. Its very tough to directly compare who has a better performing product.

It's also tough to tell how it performs across platforms. Yes, its a 4.2, but it's not the same 4.2. Past performance does not imply future results.

I don't doubt JHM products by any means - In fact, I've been considering your tune for a while. I just don't understand the resistance to posting some dyno results.

The resistance to posting dyno numbers is that it is fake hype. It literally means nothing. A dyno can be manipulated in many ways. Everyone will see different results on a dyno, every dyno will produce different results, and you will see different results every day. Even different dyno operators will yield different results.



Would you buy a tune that gave you 400hp on a dyno, but was still just as fast as a stock car?

[doug97gxe]

My car is mid 13 seconds with 90 octane gas. If I put E85 in it, I'd probably be within 2 or 3/10ths of your V8. Not that vast of a difference when you consider all I have is just a tune and a test pipe. Since there's no E85 within 1000 miles, I'll likely never know for sure.

Not bagging on your build, I'm just shocked with as little as I've done to my tiny engine it's within shouting distance of a car with twice the displacement and cylinders. Forced induction is a hell of a thing.

apples to oranges .. your car has forced induction .. with Stage 2 you're already pretty close to a stock v8 S5 .. Stage 3 you're putting out way more power .. same if not close to the RS5

i've modded N/A cars in the past.. and it takes hell to get those things to show decent gains.. knocking 1 second off without Nitrous or Forced Induction is amazing .. but when you buy an NA car you accept that any bolt on mod's will be for show or sound

[SLU_S5]

Would you buy a tune that gave you 400hp on a dyno, but was still just as fast as a stock car?

No, because that's not how it works unless you're buying a tune from a very shady company. It's fake hype if you do one run and call it a day. It means something more after you get a larger sample size with expected averages.

There isn't really an incentive to inflate dyno numbers since companies should be expecting their customers to dyno and compare results with the tuning company, and other customers as well. Some outliers can be expected, but for the most part, they should all return values in a similar range. Think about it. A lot of eyebrows would then be raised about the honesty and fair practices of a company if a tune is advertised at 450AWHP while everyone else is getting 350.

I personally know three people that have dynoed their APR stage II B8.5 S4s - besides the tune, the cars were otherwise stock. Each of these three were dynoed on the same dyno and recorded results within 15 AWHP of each other and well within the range they were expecting to get based on trials from other users, and in line with the crank HP numbers that APR posts after factoring out drivetrain loss.

Sure, each dyno is different, and each run is slightly different also. But the same goes for 1/4 mile times. At least with an expected range of dyno results, we would all have a better way to compare products.

Is there any data that suggests how much the JHM tune alone has improved the 1/4 mile time of the S5 (holding everything else constant)?

[Nastybutler]

If you're doing the dyno on a car as a before and after, then it really doesn't matter what the results are, as you're just looking for a percentage improvement. That's how APR does it. Stock car has X HP and Y Torque. After Stage Z tune, HP and Torque increased by P%. Doesn't matter if another dyno or runs under different conditions would get different power numbers, as long as the percentage gain is consistent between stock and tuned engines.

[S4fever]

No, because that's not how it works unless you're buying a tune from a very shady company. It's fake hype if you do one run and call it a day. It means something more after you get a larger sample size with expected averages.

There isn't really an incentive to inflate dyno numbers since companies should be expecting their customers to dyno and compare results with the tuning company, and other customers as well. Some outliers can be expected, but for the most part, they should all return values in a similar range. Think about it. A lot of eyebrows would then be raised about the honesty and fair practices of a company if a tune is advertised at 450AWHP while everyone else is getting 350.

I personally know three people that have dynoed their APR stage II B8.5 S4s - besides the tune, the cars were otherwise stock. Each of these three were dynoed on the same dyno and recorded results within 15 AWHP of each other and well within the range they were expecting to get based on trials from other users, and in line with the crank HP numbers that APR posts after factoring out drivetrain loss.

Sure, each dyno is different, and each run is slightly different also. But the same goes for 1/4 mile times. At least with an expected range of dyno results, we would all have a better way to compare products.

Is there any data that suggests how much the JHM tune alone has improved the 1/4 mile time of the S5 (holding everything else constant)?

Just take a look at what they've done to the B6/B7/RS4 platform. I've been waiting since 2012 for JHM to develop new products for the b8 S5. Im excited about the release of the supercharger kit... Patiently waiting

[b8s5v8]

I agree. It would be nice if jhm provided a before and after dyno

[b8s5v8]

Has anybody actually built the motor for a fsi 4.2 v8?

[doug97gxe]

Has anybody actually built the motor for a fsi 4.2 v8?

depends on what you're trying to achieve there are stock block 4.2 v8's making 500 hp with a supercharger.. i haven't heard of one failure yet.. i don't think anyone has ventured higher and at that point you are potentially going to start breaking transmission... clutches.. drive train parts.. etc

[Jake@JHM]

We have built motors for the RS4

[doug97gxe]

depends on what you're trying to achieve there are stock block 4.2 v8's making 500 hp with a supercharger.. i haven't heard of one failure yet.. i don't think anyone has ventured higher and at that point you are potentially going to start breaking transmission... clutches.. drive train parts.. etc

We have built motors for the RS4

i should specify in my post i meant S5's ... the rS4 platform has already passed 600 hp

[A4-B6]

Online calculators provide good estimates of HP based off time slip inputs and known car weight etc.. Its not rocket science. If weight, distance traveled and time are known HP/Torque can be calculated. You cant fake or mis interpret an ET. I like the JHM approach because they show the car is full interior etc... obviously other cars could obtain similar results. Driver skill etc.. is a factor and will affect results. However the math doesn't lie. Dyno's are handy for seeing peel #'s to me. We've all seen both stingy and generous machines. Why is it all dynos don't read the same? I say dont get stuck on dyno numbers and do the math yourself or use an online calculator and plug in the time slip data and car details.

My 2 cent

[b8s5v8]

So about 375awhp says online calculator

[A4-B6]

S5 with driver is around 4100? time slip 12.6 @108 give me about 395HPish flywheel.

[b8s5v8]

What's the stock awhp and awtq?

[doug97gxe]

What's the stock awhp and awtq?

around 280/260 i think

[SLU_S5]

So about 375awhp says online calculator

This may be a good estimate. Stage 2 S4s run mid 12s and usually dyno between 370-410 at the wheels depending on other mods.

[b8s5v8]

It would be awesome if jhm could get an all motor b8 s5 into the mid 11s. Is that even possible?

[Jake@JHM]

around 280/260 i think

On a mustang dyno, Tuned/ehaust S5s have done about 280-290 from what I have seen. With the stage 1 supercharger we have consistently seen 100-120whp over the current configuration.

[doug97gxe]

This may be a good estimate. Stage 2 S4s run mid 12s and usually dyno between 370-410 at the wheels depending on other mods.

Stage 2 S4/S5 run high 11's on 93 .. Low 11's on e85


Sent from my iPhone8s using Tapatalk

[Jake@JHM]

That depends really, most of the stage 2 cars will run mid to low 12s

[b8s5v8]

You said you have built the motors in the rs4. So what exactly did you strengthen in the b7 rs4's motor?

[Jake@JHM]

You said you have built the motors in the rs4. So what exactly did you strengthen in the b7 rs4's motor?

Custom sleeved cylinder walls, custom rods, custom pistons, custom rings. B&B'd