JHM or APR SUPERCHARGER for Audi s5 4.2L

[ibb88]

Okay JHM says 100 - 120 hp increase with their supercharger. APR says 537 hp with their supercharger.
That is 180 hp gain. That is a 60 hp difference but for the cost JHM is more feasible for me.
I've only seen one video of JHM's supercharger on an s5 v8 and there seems to be added noise from the supercharger.
I don't here anything over the engine and exhaust on APR's supercharger. How true are the numbers for each? I already have Fast Intentions cat back exhaust and JHM CHIP/tune. I'm trying to see around what hp I might get after adding JHM SUPERCHARGER. Any ideas?

[JoshDub]

I don't have either, but I think the 100-120hp jhm kit is stage 1. I believe they are upping that with internals.

[ibb88]

I don't have either, but I think the 100-120hp jhm kit is stage 1. I believe they are upping that with internals.

Yea but if my memory serves me correctly, JHM says you're going to have to have engine work done as well.

[Jake@JHM]

Our stage 1 is build able. We are currently testing out 1+ option which adds intercooling etc..

Our blower is actually the most quite blower on the market. Look up the Vortech V3 SI. It's a blower that is also rated for almost 800HP, so it has plenty of room. We have used this blower in RS4 as well and have put the RS4 into the 10s on full interior, full weight, and street tires.

[jwr9152]

I can only speak for the APR stage 3 with the TVS 1320. It's a great system, and seems to be rock solid. It has a very clean finished look. Almost looks factory. There is very little supercharger whine, depends on personal preference if that's good or bad. I've never had it dynoed so cant say for sure what the actual horsepower is, but I can say it's dramatic compared to stock. Gets good gas mileage, I average 24 on the highway. I live in Florida and have never had an issue with heat. Done track days and auto-crosses without a single hiccup. The stage 3 isn't sold anymore and they switched to a stage 3+ with a tvs 1740 making 589 HP and 540 ft-lbs vs 537/440. With the stage 3+ you have to change out the intake, because it can implode and also the fuel pumps. Factory fuel pumps, can't keep up. So you are looking at another $2500 for fuel pumps and intake over the price of the supercharger


Only issue I've seen with running a supercharger, and it's going to be the same with either supercharger, is getting the appropriate clutch. I've got the JHM R5 and it can handle any abuse you care to dish out to it, only down side is it is a bit of a pain to daily. I would think the R3 would be a better compromise between durability and drivability, and that is what I plan to go to next. Other option is the southbend stage 3 endurance. Haven't tried it, but I've heard good things.

APR isn't even showing the stage 3+ on their website anymore, so I'm not sure it is still available. If you can still get it, I feel like the APR unit is worth the price, and makes all the difference in the car. I'm sure the JHM unit is fantastic also. I would like to find someone with a JHM supercharger and run them back to back to compare the 2 systems.

[Jake@JHM]

I can only speak for the APR stage 3 with the TVS 1320. It's a great system, and seems to be rock solid. It has a very clean finished look. Almost looks factory. There is very little supercharger whine, depends on personal preference if that's good or bad. I've never had it dynoed so cant say for sure what the actual horsepower is, but I can say it's dramatic compared to stock. Gets good gas mileage, I average 24 on the highway. I live in Florida and have never had an issue with heat. Done track days and auto-crosses without a single hiccup. The stage 3 isn't sold anymore and they switched to a stage 3+ with a tvs 1740 making 589 HP and 540 ft-lbs vs 537/440. With the stage 3+ you have to change out the intake, because it can implode and also the fuel pumps. Factory fuel pumps, can't keep up. So you are looking at another $2500 for fuel pumps and intake over the price of the supercharger


Only issue I've seen with running a supercharger, and it's going to be the same with either supercharger, is getting the appropriate clutch. I've got the JHM R5 and it can handle any abuse you care to dish out to it, only down side is it is a bit of a pain to daily. I would think the R3 would be a better compromise between durability and drivability, and that is what I plan to go to next. Other option is the southbend stage 3 endurance. Haven't tried it, but I've heard good things.

APR isn't even showing the stage 3+ on their website anymore, so I'm not sure it is still available. If you can still get it, I feel like the APR unit is worth the price, and makes all the difference in the car. I'm sure the JHM unit is fantastic also. I would like to find someone with a JHM supercharger and run them back to back to compare the 2 systems.

I believe APR kits have been discontinued through APR

[ibb88]

Our stage 1 is build able. We are currently testing out 1+ option which adds intercooling etc..

Our blower is actually the most quite blower on the market. Look up the Vortech V3 SI. It's a blower that is also rated for almost 800HP, so it has plenty of room. We have used this blower in RS4 as well and have put the RS4 into the 10s on full interior, full weight, and street tires.

So with APR you get 537 ponies and with JHM only 450 ponies?

[Jake@JHM]

So with APR you get 537 ponies and with JHM only 450 ponies?

I would stop worrying about "HP" numbers. Every car and every dyno is different. Our basic stage 1 supercharger consistently puts our S5 and customer S5s 11s in the 1/4 mile.

[Benzo1133]

For the price, 11sec 1/4s would make me happy. Especilly if there is potential for more if I want to be faster. Ive seen an APR supercharger setup on the track at Woodburn Oregon carshow. Some chick with 6spd running low 12s if i remember correctly. I was very impressed. My goal would be to contend with the vettes (z06/zr1). And if possible, do it reliably.

[NaiveTurtle]

For the price, 11sec 1/4s would make me happy. Especilly if there is potential for more if I want to be faster. Ive seen an APR supercharger setup on the track at Woodburn Oregon carshow. Some chick with 6spd running low 12s if i remember correctly. I was very impressed. My goal would be to contend with the vettes (z06/zr1). And if possible, do it reliably.

That's Cupcake's car. It's quick. She doesn't launch that car and runs 12.4 on street tires and 92. She has the TVS1320.

[jwr9152]

I believe APR kits have been discontinued through APR

Well then getting the Jhm supercharger is a no brainer at a great price.

[wxsgt]

Well then getting the Jhm supercharger is a no brainer at a great price.

Centrifugal supers also tend to be getter at high RPMs than roots which is why despite having lower numbers than APR's they perform similarly. Add that to the fact that APR's kit is already fully done, and JHM's is the base kit you will get far more from JHM. Adding the intercooler with the 1+ kit and once you do internals and fueling and some more undisclosed as of yet upgrades, the stage 2 will nearly max or actually max out the super at near 800 hp. After that since all Vortech supers bolt up the same and such(they specifically designed them this way) you can upgrade the super to a higher flow one if you want to go crazy lol. I know JHM is the way i will be going once I can afford it.

[ibb88]

Centrifugal supers also tend to be getter at high RPMs than roots which is why despite having lower numbers than APR's they perform similarly. Add that to the fact that APR's kit is already fully done, and JHM's is the base kit you will get far more from JHM. Adding the intercooler with the 1+ kit and once you do internals and fueling and some more undisclosed as of yet upgrades, the stage 2 will nearly max or actually max out the super at near 800 hp. After that since all Vortech supers bolt up the same and such(they specifically designed them this way) you can upgrade the super to a higher flow one if you want to go crazy lol. I know JHM is the way i will be going once I can afford it.

I hear all you're saying. But I'm not the typical track guy. I'm the normal street rider that just wants to add more hp for the occasional race on the streets. In my area we meet up a lot a different spots and run car for car or on he highway. I don't want a camaro or mustang pulling up to me and I just simply can't compete. Yea call me what you want but this is how we do it here.

[Jake@JHM]

I hear all you're saying. But I'm not the typical track guy. I'm the normal street rider that just wants to add more hp for the occasional race on the streets. In my area we meet up a lot a different spots and run car for car or on he highway. I don't want a camaro or mustang pulling up to me and I just simply can't compete. Yea call me what you want but this is how we do it here.

Oh trust me, it is fantastic on the street.

[ibb88]

Oh trust me, it is fantastic on the street.

Thus why I see 537hp to say 450hp. Don't get me wrong, I believe in JHM.

[Jake@JHM]

Thus why I see 537hp to say 450hp. Don't get me wrong, I believe in JHM.

What does a HP number actually tell you though? If you can't use it for comparison, what does it actually mean? That number does not tell you anything about how pleasurable the vehicle will perform on the streets. It shows nothing regarding drive-ability, or even the driving dynamics implicated in the software. etc..

We have a lot of customers now running around with this kit, ask around for their impressions.

[doug97gxe]

Similar thread with the same concerns you had .. read it http://www.audizine.com/forum/showth...M#post11881276

[jwr9152]

[QUOTE=We have a lot of customers now running around with this kit, ask around for their impressions.[/QUOTE]

Got any running around the South East

[ibb88]

I've been on JHM site all night. I thought the supercharger was loud at idle. It actually sounds very good. I have nothing but confidence in JHM. Those guys know what they are doing and sit at the top of the game for the S5 V8. JHM SUPERCHARGER HERE I COME. Jake thanks for staying with me. JHM has proven over and over they are the tops when it comes to the S5 V8 NA. Thanks again man.

[Jake@JHM]

I've been on JHM site all night. I thought the supercharger was loud at idle. It actually sounds very good. I have nothing but confidence in JHM. Those guys know what they are doing and sit at the top of the game for the S5 V8. JHM SUPERCHARGER HERE I COME. Jake thanks for staying with me. JHM has proven over and over they are the tops when it comes to the S5 V8 NA. Thanks again man.

No problem! Please don't hesitate to let me know if you have any questions!

[Carkllr]

I Have had my car supercharged roughly only a few months but it has been nothing short of incredible. If you can afford the supercharger it is an absolute must. I installed the TVS 1900 which I Believe is the best fit for a 4.2 V8. I will upload photos of it shortly. I also believe my car is one of the very first to be supercharged that's an automatic with Tiptronic

[TOOGECKO]

I've got the APR Stage 3 (1320). Bought the car with 17K mi. and now have about 60K mi. I have really enjoyed the car, it is incredibly quick and still has great street manners. I am wondering how well APR is going to support previous installs if they have discontinued these kits. Recently had to get new intercooler seals and that was a bit of a hassle...


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[jwr9152]

I've got the APR Stage 3 (1320). Bought the car with 17K mi. and now have about 60K mi. I have really enjoyed the car, it is incredibly quick and still has great street manners. I am wondering how well APR is going to support previous installs if they have discontinued these kits. Recently had to get new intercooler seals and that was a bit of a hassle...


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They have been very helpful every time I've dealt with them, so hopefully they will continue to be. Good to see another stage 3 in the south east. Curious what clutch you are running, and how you like it.

[Jake@JHM]

Don't know if you guys noticed or not, but the S5 Supercharger Kit is on Holiday sale now!

https://jhmotorsports.com/shop/catal...ge-p-3432.html

[TOOGECKO]

My car is an auto I. Question to clutch...


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[Mikeyloureiro]

Im in the same boat. What i am looking at is the apr 1720 runs 11.1 in the 1/4. And jhm runs high 11s in the 1/4mile. Jhm. My question to you is what modifications to the engine will come out for 1+. And what will cost be? Can you give me any details without getting in trouble from the boss?

[Jake@JHM]

Im in the same boat. What i am looking at is the apr 1720 runs 11.1 in the 1/4. And jhm runs high 11s in the 1/4mile. Jhm. My question to you is what modifications to the engine will come out for 1+. And what will cost be? Can you give me any details without getting in trouble from the boss?

I have not seen any car replicate APRS time with the S5. That kit was also discontinued. Our stage 1 is also considerably less than APR's Stage 3+ kit when it was still for sale.

Our 1+ has been up and running for a while now on our shop S5. We are aiming to be under 10K for the 1+ kit.

[centowski]

Don't know if you guys noticed or not, but the S5 Supercharger Kit is on Holiday sale now!

https://jhmotorsports.com/shop/catal...ge-p-3432.html

Nothing for SQ5s, huh, Jake?

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[Mikeyloureiro]

I have not seen any car replicate APRS time with the S5. That kit was also discontinued. Our stage 1 is also considerably less than APR's Stage 3+ kit when it was still for sale.

Our 1+ has been up and running for a while now on our shop S5. We are aiming to be under 10K for the 1+ kit.

Wow it is discontinued didnt know that... under 10k is awesome

[wahpao]

I have not seen any car replicate APRS time with the S5. That kit was also discontinued. Our stage 1 is also considerably less than APR's Stage 3+ kit when it was still for sale.

Our 1+ has been up and running for a while now on our shop S5. We are aiming to be under 10K for the 1+ kit.

Under $10k? Stage 1 lists for $7950.00 and the upgrade to 1+ is $3500.00 intro price for the RS4. Which will then retail at $4500.00 is what I was quoted. Retail price will be closer to $12k for Stage 1+ IMO, and then get it for $10.8kish on the holiday sale. Am I close Jake?


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[ICU2]

Must have been the early AM posting time, $7950.00 + $3500.00 = $11450.00, if my math is correct. That is unless you were attempting a slightly larger discount. Still like to see what the final results would be on your RS4. Would give me hope that some day maybe JHM will get a kit for the RS5.

[Jake@JHM]

The S5 kit is completely different than S4/RS4. Stage 1+ is looking to be under 10k.

We have the RS5 in our sights as the next shop car

[ICU2]

Well Jake, that is a hopeful sign. If I lived closer than 2150 miles, I might have been able to "lend" you my RS5 Cab. to develop this modification. Any idea on a time frame ? 1-3/6-9/12-15 months or longer :(?

[Jake@JHM]

Well Jake, that is a hopeful sign. If I lived closer than 2150 miles, I might have been able to "lend" you my RS5 Cab. to develop this modification. Any idea on a time frame ? 1-3/6-9/12-15 months or longer :(?

Hopefully looking to have the car in 2017

[shonseb]

We have the RS5 in our sights as the next shop car

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[Beast]

The S5 kit is completely different than S4/RS4. Stage 1+ is looking to be under 10k.

We have the RS5 in our sights as the next shop car

jeez about time! can't wait to see this

[wxsgt]

The S5 kit is completely different than S4/RS4. Stage 1+ is looking to be under 10k.

We have the RS5 in our sights as the next shop car

any more word on the 1+ or the RS5 kit?? lol

[ibb88]

Really? Power. Horsepower numbers tell me 589 is more than 450. So if you have the same car and the same launch 589 will beat 450.

[LJS5]

Really considering this in next couple months, any recommended installers in Chicago area ?

[ibb88]

Really considering this in next couple months, any recommended installers in Chicago area ?

Jake says so many people have them. Why isn't anyone posting up about it?