Info on stock F80 M3 / F82 M4 turbocharger units and our turbo upgrade plans

[Pure Turbos]

We will shed a little light because it seems people want to know.

A few general pieces of info about the stock S55 turbos:

-These are MHI turbos.
-The stock turbine wheels are bigger than stock N54, but smaller than RB Turbo N54. (for reference)
-The compressor housings and turbine housings (aka turbofolds) have great flow potential. The wastegate valve area was designed VERY well.
-These are relatively easy to upgrade (stage 1 and stage 2).

Thanks

[Bowser330]

Originally Posted by Pure Turbos

We will shed a little light because it seems people want to know.

A few general pieces of info about the stock S55 turbos:

-These are MHI turbos.
-The stock turbine wheels are bigger than stock N54, but smaller than RB Turbo N54. (for reference)
-The compressor housings and turbine housings (aka turbofolds) have great flow potential. The wastegate valve area was designed VERY well.
-These are relatively easy to upgrade (stage 1 and stage 2).

Thanks

Will Pure Turbos be coming out with Stg 1 & 2 turbo upgrades for the S55?

[Pure Turbos]

We will cover this information when it's appropriate. Thanks for understanding.

[Newguy123]

Originally Posted by Pure Turbos

We will shed a little light because it seems people want to know.

A few general pieces of info about the stock S55 turbos:

-These are MHI turbos.
-The stock turbine wheels are bigger than stock N54, but smaller than RB Turbo N54. (for reference)
-The compressor housings and turbine housings (aka turbofolds) have great flow potential. The wastegate valve area was designed VERY well.
-These are relatively easy to upgrade (stage 1 and stage 2).

Thanks

Thanks for the insight PURE

[Pure Turbos]

Originally Posted by Bowser330

Will Pure Turbos be coming out with Stg 1 & 2 turbo upgrades for the S55?

Well, this used to be in a different thread. But things got moved around.

Yes, we have had the S55 cores for a long time. We are skipping over Stage 1 and have been working on Stage 2 for a while now.

Thank you.

[jc05e46m3]

Originally Posted by Pure Turbos

Well, this used to be in a different thread. But things got moved around.

Yes, we have had the S55 cores for a long time. We are skipping over Stage 1 and have been working on Stage 2 for a while now.

Thank you.

Just saw your car in the parking lot. May swing by in a bit to say hello

[turbo8765]

Do you have, can you post compressor maps?

Not really much information in your post.

[FC4]

Originally Posted by Pure Turbos

Well, this used to be in a different thread. But things got moved around.

Yes, we have had the S55 cores for a long time. We are skipping over Stage 1 and have been working on Stage 2 for a while now.

Thank you.

If you don't have a Stage 1, then that makes your "Stage 2" a Stage 1, doesn't it? Clue me on on what I'm missing here.

[Pure Turbos]

Originally Posted by FC4

If you don't have a Stage 1, then that makes your "Stage 2" a Stage 1, doesn't it? Clue me on on what I'm missing here.

No, stage 1 and stage 2 generally refer to the level of power gain the upgrade is designed for.

Stage 1 is commonly a compressor wheel only upgrade

Stage 2 is commonly a compressor wheel and turbine wheel upgrade

We are skipping over Stage 1 (which we could have had done months ago), because we feel in this application it doesn't make much sense. The stock turbine wheels are already very small for the 560whp level people are reaching. The new OE turbos cost us around $4k for a set. If we built a Stage 1, we would ask around $2500 + $4000 core deposit. Our stage 2 should land right around $5000 + $4000 core deposit.

If we all find out that the Stage 1 setup makes enough power to be worth the time / money, we may consider offering a Stage 1. For now, we are prioritizing the Stage 2.

Thank you

[m3less]

Awesome! Thanks for the info!

[jbraslins]

Pardon the uneducated question and this is possibly premature, but do you expect new turbos + tune to:

- Increase top-end with same mid-range?
- Increase mid-range with same top-end?
- Increase both top-end and mid-range?
- Increase top-end at cost of mid-range?

And what effects on turbo lag do you expect?

Thanks.

[///M ARMY]

Originally Posted by Pure Turbos

No, stage 1 and stage 2 generally refer to the level of power gain the upgrade is designed for.

Stage 1 is commonly a compressor wheel only upgrade

Stage 2 is commonly a compressor wheel and turbine wheel upgrade

We are skipping over Stage 1 (which we could have had done months ago), because we feel in this application it doesn't make much sense. The stock turbine wheels are already very small for the 560whp level people are reaching. The new OE turbos cost us around $4k for a set. If we built a Stage 1, we would ask around $2500 + $4000 core deposit. Our stage 2 should land right around $5000 + $4000 core deposit.

If we all find out that the Stage 1 setup makes enough power to be worth the time / money, we may consider offering a Stage 1. For now, we are prioritizing the Stage 2.

Thank you

Thanks for all the info. What about the tuning aspect?

Also what about if we give you our turbos rather than exchange? Each core swap would be different

[Pure Turbos]

Originally Posted by jbraslins

Pardon the uneducated question and this is possibly premature, but do you expect new turbos + tune to:

- Increase top-end with same mid-range?
- Increase mid-range with same top-end?
- Increase both top-end and mid-range?
- Increase top-end at cost of mid-range?

And what effects on turbo lag do you expect?

Thanks.

Hi Sir,

Good question. We expect an increase in both mid-range and top-end. They will spool later than the stock turbos, yet the power gain will majorly outweigh the difference in spool time. They will still spool very fast.

Originally Posted by ///M ARMY

Thanks for all the info. What about the tuning aspect?

Also what about if we give you our turbos rather than exchange? Each core swap would be different

Of course if a customer would like to send in their set of turbos for the upgrade modification, it would waive the core deposit. This is all a little premature, we are looking forward to finishing these up and doing some testing!

Thanks for the inquiries guys!

[PeterPure]

Good luck with the upgrade pure turbos! If i had a f80 m3 i would seriously consider this upgrade

[Bowser330]

Originally Posted by Darkhold

Good luck with the upgrade pure turbos! If i had a f80 m3 i would seriously consider this upgrade

good to hear! great endorsement from a Pure Turbo customer.