[Sniz]

this is what I want to see out of the kits in developement. This would be an amazing street/track car. Quick spool and huge area under the curve. Boost controller needs a bit more tuning but keeping boost level to redline and you can imagine, hell what they have already is fantastic.




3.0l s50 with Steedspeed t3 manifold, GTX35r.

bring it on boys, the n54 can do this.

[klipseracer]

more day dreaming. I wish. And when that happens we'll all be holding onto supras with nicer interiors

[ttbmer]

2 year from now. Very possible.

[JamesM3M5]

Yeah but you're only making 340lb-ft at 3500RPM!!!













Just kidding. That's a monster. Amazing what the proper turbo setup on an "old" M50 engine will do. A nice, conservative kit for NASA GTS-4 E36 M3 build will stomp those pesky E46 M3s. Oh crap, I've said too much already...

[Sniz]

to add fuel to fire, there are any spinning these motors to over 8k rpms for drag purposes. Add on a large enough turbo and things get really interesting over 7k.

I want this turbo setup.....damn thats a meaty powerband. in a 3100lb car you will smoke just about everything out there.

[starmo]

25psi? What compression? How far down does boost taper at redline? How aggressive is your timing curve?

That's a really sweet S50!

[Sniz]

Originally Posted by starmo

25psi? What compression? How far down does boost taper at redline? How aggressive is your timing curve?

That's a really sweet S50!

not my engine, i wish!!!!!!

just under 24psi peak, looks like its dropping 2-4psi by redline. pump gas timing curve.

[Rob@RBTurbo]

Any data on the S50 cylinder head flow? The n54 head has really tiny exhaust ports that seem would limit exhaust flow quite abit.

[Sniz]

Originally Posted by RobBeck

Any data on the S50 cylinder head flow? The n54 head has really tiny exhaust ports that seem would limit exhaust flow quite abit.

should be close to the m50 listed below, not exact though.

..............M50..........M52
cyl 1.....284cfm.....188cfm
cyl 2.....276cfm.....191cfm
cyl 3.....288cfm.....201cfm
cyl 4.....288cfm.....195cfm
cyl 5.....276cfm.....194cfm
cyl 6.....284cfm.....191cfm

[Rob@RBTurbo]

Just intake numbers?

[Sniz]

and for comparison if you want huge HP here is a recent dyno from Mike Radowski at MaxPsi, he's the man! so far these engines are hitting around 155mph-159mph in the 1/4 w a stock 5 speed tranny....there is more to come.

================================================== =========

Originally Posted by mike radowski

Hi Guys,

With all the E85 buzz going on these days I figured I'd dump some in and see what the fuss was about! It turns out I was in love with E85 and didn't know it!

I filled up at the pump in NJ so Not sure if it is E70 or E85, I don't have an ethanol sensor installed yet. I will measure it soon. This is my personal car running a DTA ECU that will also support a flex fuel sensor. I swapped stock cams in it for now, so the power is falling off a bit up top. I will do a compasison test with turbo cams as soon as I have them. Our Superflow Dyno tends to read about 9% lower than a dynojet SAE corrected. End result for today:



Blurry video(Go Pro Case got beat up at the last Kart race!): http://www.facebook.com/photo.php?v=2782975015210

Build thread:
http://forums.bimmerforums.com/forum....php?t=1695658

[starmo]

Originally Posted by Sniz

should be close to the m50 listed below, not exact though.

..............M50..........M52
cyl 1.....284cfm.....188cfm
cyl 2.....276cfm.....191cfm
cyl 3.....288cfm.....201cfm
cyl 4.....288cfm.....195cfm
cyl 5.....276cfm.....194cfm
cyl 6.....284cfm.....191cfm

N54 flow numbers are mickey mouse compared to those heads

[Sniz]

Originally Posted by RobBeck

Just intake numbers?

just googling

[Slidewayz]

meh, kinda laggy and a narrow-ish powerband but definitely fun above 3500 rpms

[Sniz]

Originally Posted by Slidewayz

meh, kinda laggy and a narrow-ish powerband but definitely fun above 3500 rpms

how often are you below 3500 when your driving hard? pretty much never.

also keep in mind this is on a dynojet, it will spool quicker on the road. My non GTX 35r spools to 16psi by 3200.

granted though, if this dyno would start spooling around 2500, it would be even nicer, but thats not going to happen.

[Q4P]

Yes; this is a perfect power band! Enough TQ with the HP to match!

[vasillalov]

Boost numbers rarely mean anything significant when comparing different engines and even different heads.

Sniz, that powerband looks pretty neat indeed.

[Sniz]

Originally Posted by Questforpower

Yes; this is a perfect power band! Enough TQ with the HP to match!

could you imagine the owner of a e92 M3 driving this.............

[Q4P]

Originally Posted by Sniz

could you imagine the owner of a e92 M3 driving this.............

No, too much TQ, too little sound...

Except that if this car sounded like a big turbo Supra... then a certain part of one's body would swell every time it spooled.

[Rob@RBTurbo]

Gains will definitely be there whenever we finally get a large single kit available, but I do actually believe the N54 heads are going to require significant amounts of work to put out the big numbers. They really seem to be well matched for the original smallish turbos. Unless there's another better suited casting that can be swapped over instead.

[OneReaction]

Originally Posted by RobBeck

Gains will definitely be there whenever we finally get a large single kit available, but I do actually believe the N54 heads are going to require significant amounts of work to put out the big numbers. They really seem to be well matched for the original smallish turbos. Unless there's another better suited casting that can be swapped over instead.

Well being that this is a turbo car, and we are talking about putting on a big turbo, not upgraded stock turbos, boost will always make power. Head work on a FI car, especially at the above power level is rather moot. Turn it up 1 more psi instead of doing the research and spending 5k on a head that will flow slightly more.

[rader1]

Originally Posted by OneReaction

Well being that this is a turbo car, and we are talking about putting on a big turbo, not upgraded stock turbos, boost will always make power. Head work on a FI car, especially at the above power level is rather moot. Turn it up 1 more psi instead of doing the research and spending 5k on a head that will flow slightly more.

Lol NO