[Yiruna]

Hi,

I'm looking for a Dyno sheet of a FBO S55 running 91 Octane Stage 2/TWO/DOS/DEUX along with a baseline Dyno.

Mainly interested if it's worth the upgrade given I can just get a XDI 30/60 HPFP and a Pure Stage 2 turbo to make 5XX-550 WHP on the N55.

All of the Dynos I have seen was either a Stage 2 turbo and or it used a blend of fuel

I get there's other potential benefits from going to the S55 but that's not what I'm asking lol.

[BAN_M2C]

Why not post this on the M3/M4 boards? Pretty sure you will get tons of responses there..

[M3_WC]

https://f80.bimmerpost.com/forums/sh....php?t=1384960

6th Car down

FBO - Stage 2 Pure Turbos - 91 oct

615 whp/ 630 wtq

[Yiruna]

Originally Posted by BAN_M2

Why not post this on the M3/M4 boards? Pretty sure you will get tons of responses there..

On hindsight I should have, but naturally I gravitate to the M2 forums because, up until now, I had no reason to go to other forums and forgot other forums existed lol

[Yiruna]

Originally Posted by M3_WC

https://f80.bimmerpost.com/forums/sh....php?t=1384960

6th Car down

FBO - Stage 2 Pure Turbos - 91 oct

615 whp/ 630 wtq

Interesting, I wonder how much it'll be without the Stage 2 turbo. I'm not interested in doing a turbo upgrade because the cost benefit is too much for how much the turbo costs. The dollar per/ performance benefit would be too much given I'd be fighting for grip with that much whp.

[BAN_M2C]

Originally Posted by Yiruna

On hindsight I should have, but naturally I gravitate to the M2 forums because, up until now, I had no reason to go to other forums and forgot other forums existed lol

Lol I hear ya. I post here and in 1 addicts..

FWIW some of the combos I have seen for the S55 are upgraded heat exchanger, Catless Downpipes, drop in filters and tune yield between 480-510whp on 93 oct.

So on 91 should be less..

[Yiruna]

Originally Posted by BAN_M2

Lol I hear ya. I post here and in 1 addicts..

FWIW some of the combos I have seen for the S55 are upgraded heat exchanger, Catless Downpipes, drop in filters and tune yield between 480-510whp on 93 oct.

So on 91 should be less..

Do people not upgrade the IC? I was going to do the full CSF cooling for track days. Additionally, would be running meth but not for boost, just to use as a pure cooling system. I want to make the power on FBO as efficient as possible.

[BAN_M2C]

Originally Posted by Yiruna

Do people not upgrade the IC? I was going to do the full CSF cooling for track days. Additionally, would be running meth but not for boost, just to use as a pure cooling system. I want to make the power on FBO as efficient as possible.

This is what I am considering for mine when it comes in..

https://www.dinancars.com/product/D7...s=&mid=M4/

[Yiruna]

Originally Posted by BAN_M2

This is what I am considering for mine when it comes in..

https://www.dinancars.com/product/D7...s=&mid=M4/

Dinan is good, ideally i would go with them, but they only do the heat exchanger, not the TMIC

[M3_WC]

Originally Posted by Yiruna

Do people not upgrade the IC? I was going to do the full CSF cooling for track days. Additionally, would be running meth but not for boost, just to use as a pure cooling system. I want to make the power on FBO as efficient as possible.

I thought you meant straight 91 oct. You’re going to run meth? I was wondering who was pushing 500whp on N55 on 91 oct only, that’s ballsy.

No E85 in your area? Personally rather run a mix, than 91 plus meth.

[Yiruna]

Originally Posted by M3_WC

I thought you meant straight 91 oct. Your going to run meth? I was wondering who was pushing 500whp on N55 on 91 oct only, that's ballsy.

No E85 in your area? Personally rather run a mix, than 91 plus meth.

I'm only gonna use meth for cooling, not gonna turn up any boost or use a tune built for the meth. And it'll only be used for on the track, otherwise, it'll be off for on street driving

For on street driving I will be using just pump only.

And I usually talk about 93 whp figures because when everyone is running 91 octane in California, the difference in whp it will technically equal for everyone. Should probably be more consistent with how I state my figures..

Also, I am not sure if I can run full E85 on the 35 HPFP.

[GerardzM]

I commend you if you can use methanol injection for strictly cooling purposes.

[hellrotm]

Originally Posted by Yiruna

Hi,

I'm looking for a Dyno sheet of a FBO S55 running 91 Octane Stage 2/TWO/DOS/DEUX along with a baseline Dyno.

Mainly interested if it's worth the upgrade given I can just get a XDI 30/60 HPFP and a Pure Stage 2 turbo to make 5XX-550 WHP on the N55.

All of the Dynos I have seen was either a Stage 2 turbo and or it used a blend of fuel

I get there's other potential benefits from going to the S55 but that's not what I'm asking lol.

Who is running N55 Pure stg2 on 91 making 500+whp? You will definitely need E85 or race gas for that.

[Yiruna]

Originally Posted by BlackJetE90

Who is running N55 Pure stg2 on 91 making 500+whp? You will definitely need E85 or race gas for that.

I know a couple people have. Though they either used P.I., the S55 HPFP or the XDI Pumps

[hellrotm]

Originally Posted by Yiruna

I know a couple people have. Though they either used P.I., the S55 HPFP or the XDI Pumps

You have a link? Everyone I know running 500whp consistently on N55 is running a E85 blend or race gas.

[dmk08]

Originally Posted by Yiruna

Dinan is good, ideally i would go with them, but they only do the heat exchanger, not the TMIC

Actually Dinan is just kinda overpriced. Better and cheaper options for almost everything they sell.

[dmk08]

Originally Posted by Yiruna

Hi,

I'm looking for a Dyno sheet of a FBO S55 running 91 Octane Stage 2/TWO/DOS/DEUX along with a baseline Dyno.

Mainly interested if it's worth the upgrade given I can just get a XDI 30/60 HPFP and a Pure Stage 2 turbo to make 5XX-550 WHP on the N55.

All of the Dynos I have seen was either a Stage 2 turbo and or it used a blend of fuel

I get there's other potential benefits from going to the S55 but that's not what I'm asking lol.

My M4 with BM3, downpipes, e40 mix, and drop in air filters .... 520hp/568tq. This was before Cary got the cars to run full e85 which would add even more power. You can run full e85 on stock fuel system unless you upgrade turbos.

Btw stock comp pack rear section + VRSF downpipes RE: sound.

[hellrotm]

Weistec tune, downpipes, exhuast.

Everything else bone stock on crap 91 oct only.

501whp/553whp

[hellrotm]

Originally Posted by dmk08

My M4 with BM3, downpipes, e40 mix, and drop in air filters .... 520hp/568tq. This was before Cary got the cars to run full e85 which would add even more power. You can run full e85 on stock fuel system unless you upgrade turbos.

F80Paul just ran a 10.6 with full E85 tune, stock turbos and stock fuel system. That is movin for stock turbos.