Forged pistons/internals JE vs IE

[doublespeeded]

Hi all,

im wondering if anyone has experienced with re-builds and using forged bits.

Ill need to order very soon and wondered between these two brands; IE & JE.

could anyone shed some light, regarding quality, pricing etc etc

Thanks

[misiak]

I went with JE pistons and IE rods, no complaints. For me price was the deciding factor, the combo I went with was the cheapest out there. (I purchased from CTS)

[EvolutionArmory]

Depends on who makes the pistons for IE. If Mahle made them then yes you should choose those.

JE pistons are fine but they’re made of an alloy that requires more piston clearance and it can cause a little piston slap when it’s cold until they heat up and expand a little.

I went with JE pistons for my build but only because the Mahle pistons I really wanted were back ordered.

[cybernet99]

I've been running IE (Mahle) for quite a while, solid ... no issues. I've heard a few people think less of the JE pistons because they believe that their piston top design is less desirable for getting a good flame burn.

[Spawne32]

Depends on who makes the pistons for IE. If Mahle made them then yes you should choose those.

JE pistons are fine but they’re made of an alloy that requires more piston clearance and it can cause a little piston slap when it’s cold until they heat up and expand a little.

I went with JE pistons for my build but only because the Mahle pistons I really wanted were back ordered.

JE pistons on your.... B7?

[EvolutionArmory]

JE pistons on your.... B7?

Yes. I’m talking about the alloy used in the piston and why you should choose one over the other. Guess what? It’s true for all cars.

JE pistons need more cylinder clearance to allow for expansion so they run a smaller diameter. And it can cause piston slap when the motor is cold.

It applies to all cars because, you know, metallurgy. Science.

JE makes the FSR piston now which uses perfect skirt technology which helps reduce piston slap but I think it’s just better to pick Mahle pistons if they’re available.

Mahle pistons don’t need as much clearance because the alloy they use is different than JE and doesn’t expand as much when heated. Plus they’re a VAG OEM supplier.




Sent from my iPhone using Audizine

[98A4TurboAWD]

Yes. I’m talking about the alloy used in the piston and why you should choose one over the other. Guess what? It’s true for all cars.

JE pistons need more cylinder clearance to allow for expansion so they run a smaller diameter. And it can cause piston slap when the motor is cold.

It applies to all cars because, you know, metallurgy. Science.

JE makes the FSR piston now which uses perfect skirt technology which helps reduce piston slap but I think it’s just better to pick Mahle pistons if they’re available.

Mahle pistons don’t need as much clearance because the alloy they use is different than JE and doesn’t expand as much when heated. Plus they’re a VAG OEM supplier.




Sent from my iPhone using Audizine

JE doesn't just use one material. My JE SRP forged pistons in my SBC are 4032 forged. I have run JE all my life in many builds and I do not think there is a better piston. Mahle makes a great piston as well. If budget is a factor, get whichever is cheaper, you cannot go wrong either way.

[Spawne32]

JE doesn't just use one material. My JE SRP forged pistons in my SBC are 4032 forged. I have run JE all my life in many builds and I do not think there is a better piston. Mahle makes a great piston as well. If budget is a factor, get whichever is cheaper, you cannot go wrong either way.

In that clowns mind, a JE piston is a JE piston and they are all the same, because you know, science and stuff.

[EvolutionArmory]

In that clowns mind, a JE piston is a JE piston and they are all the same, because you know, science and stuff.

All of the JE pistons made specifically for the EA888 are 2618 genius. Unless the OP wants to go custom through JE, he’s getting 2618.

It would be silly of him to custom order a 4032 piston through JE when MAHLE makes a piston for this car. And if you go on JE’s website, they only list SRP pistons for AMERICAN MUSCLE cars🤣🤣

SRP is a brand JE owns. They are not technically even JE pistons so there goes special ordering them in 4032.

So guess what genius, the piston he chose for a small block Chevy aren’t available for an Audi.

So maybe you need to sit down and listen like I keep telling you to do in other threads.

Grown ups are talking.

Busting you up is like a part time job for me lately.


Sent from my iPhone using Audizine

[EvolutionArmory]

Just to recap, I said JE pistons are 2618 for Audi, someone said they got 4032 pistons for their small block Chevy from a company that isn’t even technically JE and then you called ME the idiot. 🤣🤣🤣🤣


Sent from my iPhone using Audizine

[98A4TurboAWD]

If it is the case that Mahle is 4032 and the JE is 2168 then you are right. If you aren't aware, the claim that was being addressed by me is that JE as a brand only uses 2168 which is not the case. As far as I know, JE will make you whatever piston you want.

SRP is a brand made and owned by JE and are stamped JE and come with JE stickers. Make of that what you will. To be honest, I think you did a quick google search on SRP and have no previous knowledge of the piston.

[EvolutionArmory]

The OP made no mention of custom ordering a piston in 4032 and all the commercially available JE pistons for the EA888 are 2168.

We’d have to ask him.

I was bringing up the fact that everything Spawne does fails so he’s in no position to call anyone a clown. Especially since he used your small block Chevy pistons to call me one 🤣

So to the OP, were you gonna order custom pistons from JE when you made this post or were you just thinking of buying the few pistons JE sells for this car that are 2168?




Sent from my iPhone using Audizine

[Audi 4 Life]

Yes. I’m talking about the alloy used in the piston and why you should choose one over the other. Guess what? It’s true for all cars.

JE pistons need more cylinder clearance to allow for expansion so they run a smaller diameter. And it can cause piston slap when the motor is cold.

It applies to all cars because, you know, metallurgy. Science.

JE makes the FSR piston now which uses perfect skirt technology which helps reduce piston slap but I think it’s just better to pick Mahle pistons if they’re available.

Mahle pistons don’t need as much clearance because the alloy they use is different than JE and doesn’t expand as much when heated. Plus they’re a VAG OEM supplier.




Sent from my iPhone using Audizine

X2 those FSR are good shit, paired with Carrio pro H forged rods.... And your on you way to a mighty wicked build. I find it hard to believe the Mahle are better, why would OE supplier be better for high power build? that makes no sense. But I guess they could be I haven't had much time to research them but I was checking out those FSR seemed pretty legit.

If it wasn't so hard to find a long block for a steal. I would of already started my engine build.

Sent from my SM-G960U using Tapatalk

[EvolutionArmory]

Both make fine pistons. The Mahle pistons are just better suited for a street driven car or daily. The tighter tollerance of the Mahle will be less noisy. JE pistons can have piston slap until they warm up. And the Mahle pistons will have less cylinder wall wear over time. That’s the important thing if someone wants to daily a built motor and wants to keep it for a while.

My JE pistons slap for 20 seconds when it’s real cold until they warm up. I got them because the Mahle Powerpak pistons I really wanted were backordered.


Sent from my iPhone using Audizine

[98A4TurboAWD]

X2 those FSR are good shit, paired with Carrio pro H forged rods.... And your on you way to a mighty wicked build. I find it hard to believe the Mahle are better, why would OE supplier be better for high power build? that makes no sense. But I guess they could be I haven't had much time to research them but I was checking out those FSR seemed pretty legit.

If it wasn't so hard to find a long block for a steal. I would of already started my engine build.

Sent from my SM-G960U using Tapatalk

Mahle makes top of the line products.

[EvolutionArmory]

Mahle makes top of the line products.

The best part about this whole thread is there really isn’t a bad choice. Both companies make great pistons.



Sent from my iPhone using Audizine

[A4 Centaur]

https://performancebyie.com/collecti...w-audi-20t-fsi

PROPRIETY MAHLE LOW-EXPANSION 124P ALLOY

Not sure what JE are running for material:

https://www.jepistons.com/catalogsea...3365&make=8571

[doublespeeded]

The OP made no mention of custom ordering a piston in 4032 and all the commercially available JE pistons for the EA888 are 2168.

We’d have to ask him.

I was bringing up the fact that everything Spawne does fails so he’s in no position to call anyone a clown. Especially since he used your small block Chevy pistons to call me one 🤣

So to the OP, were you gonna order custom pistons from JE when you made this post or were you just thinking of buying the few pistons JE sells for this car that are 2168?




Sent from my iPhone using Audizine

Sorry all for not being around for a little while.

Nah i was just asking about off-the shelf / pre-made pistons specifically made for the vehicle.
The JE was much cheaper than the Mahle pistons...hence why i was wondering and asked the question.

but I went ahead with buying the Mahle due to it receiving very good reviews and seems to be favoured.

I've been running IE (Mahle) for quite a while, solid ... no issues. I've heard a few people think less of the JE pistons because they believe that their piston top design is less desirable for getting a good flame burn.

How much power are you running with them?

Both make fine pistons. The Mahle pistons are just better suited for a street driven car or daily. The tighter tollerance of the Mahle will be less noisy. JE pistons can have piston slap until they warm up. And the Mahle pistons will have less cylinder wall wear over time. That’s the important thing if someone wants to daily a built motor and wants to keep it for a while.

My JE pistons slap for 20 seconds when it’s real cold until they warm up. I got them because the Mahle Powerpak pistons I really wanted were backordered.


Sent from my iPhone using Audizine

I now wonder how well the Forged Mahle pistons will do against LSPI...

Better than stock i suppose?

[EvolutionArmory]

Just from what limited info I’ve read about LSPI, it seems the oil you choose is probably the best way to reduce the chance of it.

My understanding of it is that it occurs when a droplet of oil of fuel residue comes loose and self ignites. Fuel quality in the US is pretty decent so oil would be the biggest factor.


Sent from my iPhone using Audizine

[98A4TurboAWD]

Sorry all for not being around for a little while.

Nah i was just asking about off-the shelf / pre-made pistons specifically made for the vehicle.
The JE was much cheaper than the Mahle pistons...hence why i was wondering and asked the question.

but I went ahead with buying the Mahle due to it receiving very good reviews and seems to be favoured.




How much power are you running with them?





I now wonder how well the Forged Mahle pistons will do against LSPI...

Better than stock i suppose?

It all depends on what exactly you want. The JE is a stronger piston and will stand up better to detonation, but it could make some slight noise at startup due to the expanding properties of the 2168 forged. The Mahle is a 4032 forged material, so it will not be noisy, but it will also not be as durable hence not as resistant to things that could potentially damage the pistons.

Personally, I would go with 4032 unless I was building an all out race motor that needed the most durable piston possible with a high chance of detonation due to tuning or unforeseen hiccup. It's not to say the 4032 won't hold up to that at all, it will just not hold up as well. I also am not a fan of piston slap, so I would go 4032 to eliminate that altogether. But my car with 4032 forged is only making about 650 HP. If I was pushing 800+ I would probably go with another forged material.

[98A4TurboAWD]

Did the set come with rings?

[EvolutionArmory]

It all depends on what exactly you want. The JE is a stronger piston and will stand up better to detonation, but it could make some slight noise at startup due to the expanding properties of the 2168 forged. The Mahle is a 4032 forged material, so it will not be noisy, but it will also not be as durable hence not as resistant to things that could potentially damage the pistons.

Personally, I would go with 4032 unless I was building an all out race motor that needed the most durable piston possible with a high chance of detonation due to tuning or unforeseen hiccup. It's not to say the 4032 won't hold up to that at all, it will just not hold up as well. I also am not a fan of piston slap, so I would go 4032 to eliminate that altogether. But my car with 4032 forged is only making about 650 HP. If I was pushing 800+ I would probably go with another forged material.

I think Mahle is adding Magnesium or Copper to their “proprietary alloy” that they call 124P.

So they’re probably trying to get a little more strength out of a 4032 alloy by blending but still have the low expansion properties that alloy has.

Sounds like Mahle has the best of both worlds with their 124P blend. And I agree with you that in a high HP race car, JE would be the way to go.

In a street driven car, Mahle is the better choice I think. The piston slap my JE pistons have is bearable and wish I could have got Powerpak pistons in a reasonable time frame.


Sent from my iPhone using Audizine

[doublespeeded]

Just from what limited info I’ve read about LSPI, it seems the oil you choose is probably the best way to reduce the chance of it.

My understanding of it is that it occurs when a droplet of oil of fuel residue comes loose and self ignites. Fuel quality in the US is pretty decent so oil would be the biggest factor.


Sent from my iPhone using Audizine

Its kinda scary stuff, and how it isn't fully understood yet. i think the majority of consumer engine oils are now DEXO 2?

I think Mahle is adding Magnesium or Copper to their “proprietary alloy” that they call 124P.

So they’re probably trying to get a little more strength out of a 4032 alloy by blending but still have the low expansion properties that alloy has.

Sounds like Mahle has the best of both worlds with their 124P blend. And I agree with you that in a high HP race car, JE would be the way to go.

In a street driven car, Mahle is the better choice I think. The piston slap my JE pistons have is bearable and wish I could have got Powerpak pistons in a reasonable time frame.


Sent from my iPhone using Audizine

Good to know this, so Mahle's focus on stronger material, is that for the current production line?
Im currently awaiting parts to arrive from the US for this build and really looking forward to it. How much HP can these pistons handle?

It all depends on what exactly you want. The JE is a stronger piston and will stand up better to detonation, but it could make some slight noise at startup due to the expanding properties of the 2168 forged. The Mahle is a 4032 forged material, so it will not be noisy, but it will also not be as durable hence not as resistant to things that could potentially damage the pistons.

Personally, I would go with 4032 unless I was building an all out race motor that needed the most durable piston possible with a high chance of detonation due to tuning or unforeseen hiccup. It's not to say the 4032 won't hold up to that at all, it will just not hold up as well. I also am not a fan of piston slap, so I would go 4032 to eliminate that altogether. But my car with 4032 forged is only making about 650 HP. If I was pushing 800+ I would probably go with another forged material.

very nice!, 650hp is that at the motor or wheels? im interested to know more about your set up. Perhaps i could PM ?

[EvolutionArmory]

4032 is a fairly strong alloy and has low expansion under heat so it is a really good alloy for pistons in a daily driven mild build car because you can run tighter clearance. Still strong but less chance of piston slap. Mahle pistons are generally associated with 4032 alloy.

2618 is a stronger alloy but expands much more with heat so you have to run more piston to cylinder gap so when the piston expands you don’t run into issues. 2618 is what you would want to use in a high HP/high boost build where piston noise and a little bit of wear isn’t too much of a concern.
JE pistons are usually associated with 2618.

I think what Mahle is doing with their P series alloys is taking the properties of 4032 and adding some of the properties of 2618 to get a piston that is still quiet and has low expansion like a 4032 but has slightly more strength.


Sent from my iPhone using Audizine

[Audi 4 Life]

It all depends on what exactly you want. The JE is a stronger piston and will stand up better to detonation, but it could make some slight noise at startup due to the expanding properties of the 2168 forged. The Mahle is a 4032 forged material, so it will not be noisy, but it will also not be as durable hence not as resistant to things that could potentially damage the pistons.

Personally, I would go with 4032 unless I was building an all out race motor that needed the most durable piston possible with a high chance of detonation due to tuning or unforeseen hiccup. It's not to say the 4032 won't hold up to that at all, it will just not hold up as well. I also am not a fan of piston slap, so I would go 4032 to eliminate that altogether. But my car with 4032 forged is only making about 650 HP. If I was pushing 800+ I would probably go with another forged material.

650? Clearly your not talking about your cts k04 B8, as that isn't possible on any k04, ever. so what are you referring to? Since application matters with internals

Sent from my SM-G960U using Tapatalk

[98A4TurboAWD]

650? Clearly your not talking about your cts k04 B8, as that isn't possible on any k04, ever. so what are you referring to? Since application matters with internals

Sent from my SM-G960U using Tapatalk

Clearly you didn't read the entire thread. As stated above, the forged assembly I'm referring to is in a SBC. It is a procharged 4th gen f body with a SBC LT1. Not my stock internal Audi.

[Audi 4 Life]

Clearly you didn't read the entire thread. As stated above, the forged assembly I'm referring to is in a SBC. It is a procharged 4th gen f body with a SBC LT1. Not my stock internal Audi.

Yeah let's talk about other platforms in a B8 section cuz that makes a lot of sense. Back to focusing on the B8 I'm curious what some experienced people think about CP pistons?

https://www.ebay.com/itm/323945067515

Sent from my SM-G960U using Tapatalk

[doublespeeded]

Clearly you didn't read the entire thread. As stated above, the forged assembly I'm referring to is in a SBC. It is a procharged 4th gen f body with a SBC LT1. Not my stock internal Audi.

To be honest, the way it was written, it was a bit misleading

[98A4TurboAWD]

To be honest, the way it was written, it was a bit misleading

Really?

JE doesn't just use one material. My JE SRP forged pistons in my SBC are 4032 forged. I have run JE all my life in many builds and I do not think there is a better piston. Mahle makes a great piston as well. If budget is a factor, get whichever is cheaper, you cannot go wrong either way.

Yeah let's talk about other platforms in a B8 section cuz that makes a lot of sense. Back to focusing on the B8 I'm curious what some experienced people think about CP pistons?

https://www.ebay.com/itm/323945067515

Sent from my SM-G960U using Tapatalk

We were talking about piston brands before it was mentioned that the JE for this car is not 4032 and I was addressing that JE as a brand does not only make pistons with one material.