Most reliable 650 whp turbos?

[N44RP]

Who has the most reliable turbos? I know there’s tons of great press on pures but then I always see people saying it’s just hype and the number of blown turbos is underreported.

So who makes the most reliable turbo for 650 whp on 93 octane?
Let’s avoid the overly large and laggy ones.

[McBobby Jr]

650whp on 93 octane is gonna be a serious task to accomplish, and you say you want to avoid the overly large turbos which would be the ones necessary to make 650whp on pump gas with out spray or WMI. 1.3”-1.5” ID tubular manifold + 68-72mm Turbo with a 1.00+ AR on a 4 inch downpipe/exhaust combo could do it. You’ll be trading response and early power and torque for far less back pressure which will be necessary to make the power you want on standard pump gas.

[N44RP]

Originally Posted by McBobby Jr

650whp on 93 octane is gonna be a serious task to accomplish, and you say you want to avoid the overly large turbos which would be the ones necessary to make 650whp on pump gas with out spray or WMI. 1.3”-1.5” ID tubular manifold + 68-72mm Turbo with a 1.00+ AR on a 4 inch downpipe/exhaust combo could do it. You’ll be trading response and early power and torque for far less back pressure which will be necessary to make the power you want on standard pump gas.

I appreciate the response, maybe I should’ve just specified a solid 100 whp delta over just a BM3 tune with bolt ons rather than the 650whp goal because that’s realistically what I’m trying to achieve

[Taylorsherk]

https://www.full-race.com/2014-2020-...-turbo-upgrade

https://bigboostturbo.com/collection...-m3-f80-m4-f82

[N44RP]

From my understanding full race don't gain much over a bm3 tune

Limited data on them though

[Anonymoose]

Originally Posted by N44RP

From my understanding full race don't gain much over a bm3 tune

Limited data on them though

On E47 572whp on full race. I don’t run out of fueling till e65 which should bring me over 600whp easy


I track the snot out of mine so they’re reliable.

[N44RP]

Originally Posted by Anonymoose

On E47 572whp on full race. I don’t run out of fueling till e65 which should bring me over 600whp easy


I track the snot out of mine so they’re reliable.

I appreciate the graph! Happen to have a 93 baseline or know what the delta was over stock?

[Anonymoose]

Originally Posted by N44RP

I appreciate the graph! Happen to have a 93 baseline or know what the delta was over stock?

Sadly, I dont. The shop I use just got their own dynojet a few months ago which is after I got the all the work done. I will say the factory turbos sucked from 5k to redline. Afterwards, it pulls all the way to redline with no issues. Also, the factory turbos werent consistent in lap times either.

[JBM4]

Originally Posted by N44RP

Who has the most reliable turbos? I know there’s tons of great press on pures but then I always see people saying it’s just hype and the number of blown turbos is underreported.

So who makes the most reliable turbo for 650 whp on 93 octane?
Let’s avoid the overly large and laggy ones.

Your best bet is either regular pure stage 2’s or mosselman turbo.
Both on Bm3 OTS 2H 93 octane should get you in the high 500’s. Like 570-580hp range. With a custom tune 600+ is possible.

For mid 600’s you will need EU5’s and a dorch lift kit.
Unless you wanna run e40-e50 mix.

Pure stage 2 is very reliable. Your thinking the stories for pure stage 2+ and the boost leak issues etc.

[mike@x-ph.com]

In my opinion, Pure Turbos are the most reliable; they have been tested more than any other brand.

More importantly, their support has proven to be one of the best; they stand behind their products and, unlike other manufacturers, won't stop responding after a warranty claim.

[GuyLedouche]

Originally Posted by N44RP

From my understanding full race don't gain much over a bm3 tune

Limited data on them though

This is from Full Race on E85

[JBM4]

Originally Posted by mike@x-ph.com

In my opinion, Pure Turbos are the most reliable; they have been tested more than any other brand.

More importantly, their support has proven to be one of the best; they stand behind their products and, unlike other manufacturers, won't stop responding after a warranty claim.

I agree with everything Mike just said.

Plus they should last if you don’t abuse them.

Also, if something does go wrong, $800-900 you can send it to pure for a full rebuild and be back in business in no time 😎

[TR930]

Full Race has all new housings too, not traded in cores.

[Track/S]

The MHI that Full Race sells is one of the best options, I would like to see what internals they use, if they are reinforced it is the best option.

[Wanted_M]

Originally Posted by Track/S

The MHI that Full Race sells is one of the best options, I would like to see what internals they use, if they are reinforced it is the best option.

Better than Mosselman turbo?

[Track/S]

Originally Posted by Wanted_M

Better than Mosselman turbo?

Yes, I would not install any turbo in 2024 with a 12-blade turbine wheel, that turbine design was used in Adolf Hitler's car...

And I would also like to see what internals Mosselman uses but I don't think they are better of the MHI that Full Race sells.

[sly1types]

Originally Posted by Track/S

Yes, I would not install any turbo in 2024 with a 12-blade turbine wheel, that turbine design was used in Adolf Hitler's car...

And I would also like to see what internals Mosselman uses but I don't think they are better of the MHI that Full Race sells.

I don’t know much about turbine design, but they spool pretty close to the pure high flow. From what I hear they are very reliable. I’m leaning towards Mosselman to run like a 600rwhp road course on E and 700 on the street with the dorch kit and Eu5s on E.
Also at 700 they don’t fall off at the top like pure high flows.

[Track/S]

Originally Posted by sly1types

I don’t know much about turbine design, but they spool pretty close to the pure high flow. From what I hear they are very reliable. I’m leaning towards Mosselman to run like a 600rwhp road course on E and 700 on the street with the dorch kit and Eu5s on E.
Also at 700 they don’t fall off at the top like pure high flows.

More blades is worse spool and also more EGT.

I am 100% sure that the Full Race version has better spool and can provide same final power versus mosselmans.

I have tried several sizes of wheels on S55 turbos and the smallest gives same power as the largest, only difference is the spool, I have verified that on the track the smaller version makes better time.

My version has the spool even better than full race because I use a slightly smaller compressor wheel.

[N44RP]

Originally Posted by Track/S

More blades is worse spool and also more EGT.

I am 100% sure that the Full Race version has better spool and can provide same final power versus mosselmans.

I have tried several sizes of wheels on S55 turbos and the smallest gives same power as the largest, only difference is the spool, I have verified that on the track the smaller version makes better time.

My version has the spool even better than full race because I use a slightly smaller compressor wheel.

Last year I had dug into Full Race before ultimately passing because it didn’t seem like they produced enough of a delta over just a tune on 93. Also minimal people seemingly running these/providing any information on them made the decision difficult.
Let me know your thoughts.

https://f80.bimmerpost.com/forums/sh....php?t=2032089

[Track/S]

Originally Posted by N44RP

Last year I had dug into Full Race before ultimately passing because it didn’t seem like they produced enough of a delta over just a tune on 93. Also minimal people seemingly running these/providing any information on them made the decision difficult.
Let me know your thoughts.

https://f80.bimmerpost.com/forums/sh....php?t=2032089

I read 580whp? If so, they are similar numbers to rest of hybrid turbos.
With spool close to OEM they become the best option

[sly1types]

Originally Posted by JBM4

I agree with everything Mike just said.

Plus they should last if you don’t abuse them.

Also, if something does go wrong, $800-900 you can send it to pure for a full rebuild and be back in business in no time 😎

What do you mean by don’t abuse them? This is my abuse car. Are 25minute track sessions considered abuse?

[McBobby Jr]

Originally Posted by N44RP

I appreciate the response, maybe I should’ve just specified a solid 100 whp delta over just a BM3 tune with bolt ons rather than the 650whp goal because that’s realistically what I’m trying to achieve

Gotcha, good luck to you on that if that’s the case you should have a much easier time reaching your goal.