An N/A guy looking to the darkside. Help me build boost!

[e30kid89]

I'm liking the s369 on paper, rated for 100+lb/min and dirty cheap. Not sure how the response will be


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[vollosso]

He wasn't full out, only upper 20's boost. Even a stock cast S366 will make 850

but boost was tapering off at redline..

[someguy2800]

but boost was tapering off at redline..

I didn't know that. I know he told me he was spinning hard on the rollers. I'd bet he would be over 900 if he had traction. A 9180 should in theory make mid 900 or so. I know a 467 which is a similar compressor and a 3mm bigger turbine has made over 1000. I have seen stock cast s366's make over 850. Dunno. Nobody beats precision

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I'm liking the s369 on paper, rated for 100+lb/min and dirty cheap. Not sure how the response will be


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I was going to get one of those. The diesel guys say it actually spools better than a cast s366. It's the same turbine as an s366 so it will probably be a bit lazy compared to something like a 6870 I would think. I was going to get one but now that I'm going auto I think I will get an s472sxe

[e30kid89]

but boost was tapering off at redline..

Spinning on dyno. has some more in it for sure.

[vollosso]

Was it spinning above 5500?

Just curious as i have seen graphs of 1k out of a 3.2l 6870 with 500wtq at 4k and im trying to decide.. Between the two.

[LividBimmer87]

Can I join the whatsapp group chat?

[e30kid89]

There's a group chat?? Lol it'll prolly eat all of my poor data


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[Da Infammus 1]

There's a group chat?? Lol it'll prolly eat all of my poor data

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If there's a chat about these turbos I want in lol #unlimiteddataFTW

[e30kid89]

If there's a chat about these turbos I want in lol #unlimiteddataFTW

My buddy moved to FL and was showing off his unlimited everything dirt cheap plan and I was sad.

Our plans here suck.

[LividBimmer87]

If there's a chat about these turbos I want in lol #unlimiteddataFTW

I would too, but I sold my e36 m3 turbo project and bought an 04 STi. I'm a pretender that's getting updates on his phone

[Da Infammus 1]

My buddy moved to FL and was showing off his unlimited everything dirt cheap plan and I was sad.

Our plans here suck.

My plan is actually from when I lived in NY lol. Still got my NY number too. Still no reason for you to be sad though, you have boost!

[Da Infammus 1]

That moment when the wife's new daily is on E85 before you

ForumRunner_20161024_174106.png

But now that she's taken care of, house is situated, and baby is set, it's now full steam ahead on getting the car done. Even thought of just getting an sxe369 instead of a 6466 to save money and be done sooner.

[Butters Stoch]

Go 6870. I'm starting to debate it myself. But want to see 6466 on steed.

[Da Infammus 1]

Go 6870. I'm starting to debate it myself. But want to see 6466 on steed.

6466 is $1650 the way I want it. 6870 is $2k. Sxe369, less than $1k. I'm growing increasingly impatient with not having a running M3, $600 to $1k headroom brings my finish line closer.

[vollosso]

FWIW, I have a 6870 on my car now and its WILD. Very happy. Powerband of a 4094 with earlier boost threshold. The powerband is super usable for a daily even with a 1.15 housing.

[rajicase]

"Buy it now"

Go.

[pbonsalb]

FWIW, I have a 6870 on my car now and its WILD. Very happy. Powerband of a 4094 with earlier boost threshold. The powerband is super usable for a daily even with a 1.15 housing.

E85 tune?

[vollosso]

E85 tune?

yes, although I'm still running soft timing. I have been way too busy, I am still running on a very soft base tune.

We did a 92 octane car on a turbo a bit smaller than this and made 600wtq, I dont think I would suffer much/anything from being on pump at this time. Remember I'm 9.2:1.

[s13flyboy]

What kind of powerband/boost threshold are we talking? I haven't done enough research on the 4094 to be conversant.

[m3mods]

What kind of powerband/boost threshold are we talking? I haven't done enough research on the 4094 to be conversant.

> 4k hold on!

[Butters Stoch]

6466 is $1650 the way I want it. 6870 is $2k. Sxe369, less than $1k. I'm growing increasingly impatient with not having a running M3, $600 to $1k headroom brings my finish line closer.

If its a price point, go gtw6465 or gtw6765.
Everyone that has bought one is in love with them.
Plus, you can get them much below retail. .......wink wink.

[vollosso]

> 4k hold on!

What kind of powerband/boost threshold are we talking? I haven't done enough research on the 4094 to be conversant.

EHHHHH.. I can pull the new logs a little later.. The data I remember shows positive pressure before 3k, the gate cracking at <3900 and full boost by ~4200. I would guess it will make any pressure you want by 4500.

Note: this is on a 9.2:1, 3.3L, Hp cover 6870 1.15ar, huge intercooler, 3" piping everywhere. Also, I always forget my vanos is off.

The comment about the powerband comes from my previous 64mm turbo which would literally blow the tires off at 3800 rpm. I would guess the power is nearly the same but since it comes on much more gradually it doesnt immediately rip them loose.

[E36 HateR]

EHHHHH.. I can pull the new logs a little later.. The data I remember shows positive pressure before 3k, the gate cracking at <3900 and full boost by ~4200. I would guess it will make any pressure you want by 4500.

Note: this is on a 9.2:1, 3.3L, Hp cover 6870 1.15ar, huge intercooler, 3" piping everywhere. Also, I always forget my vanos is off.

The comment about the powerband comes from my previous 64mm turbo which would literally blow the tires off at 3800 rpm. I would guess the power is nearly the same but since it comes on much more gradually it doesnt immediately rip them loose.

In what gear?

I was getting 25psi in 2nd at 4500, and 25psi in 3rd about 300rpm sooner.

Large 4 inch core and 3 inch piping from the compressor cover.

Lazy journal bearing holset on a stock compression 2.8, so a slightly lower comp 3.3 should come on sooner.

[e30kid89]

FWIW, I have a 6870 on my car now and its WILD. Very happy. Powerband of a 4094 with earlier boost threshold. The powerband is super usable for a daily even with a 1.15 housing.

Sounds like what I was saying earlier!

Bf.c FI needs to stop fearing the large turbos.

[NOTORIOUS VR]

Powerband of a 4094 with earlier boost threshold.

Dyno? Logs?