Final Dyno SRM K24 before removing cats and 2.5" downpipes

[itguy]

32psi - 604whp - 572wtq

Iat's graph also placed below, Vegas is hot....

I will also preface the IAT graph that this was the 2nd to last pull. The 3rd pull that yielded the dyno graph decided to stop logging at 6200 but was just as severe of a climb so just posting this one for reference.

Needs more fuel in the middle and pulled a little timing there.

Reminder of hardware, on e85:
J-WOWW tune
Billet RS6 hybrid turbos
RPM rods
Stock heads
stock IM with Cobbled RS4 tb
SSAC 2.5" downpipes with cats and double resonated 2.5" catback
Cobbled inlets
Cobbled y pipe
Cobbled mandrel bent bi pipes
Cobbled together intercoolers
IE dual 044 surge tank fueling
034 rails
1000cc ev14

The cobbled mess as it sits

[aysix]

604whp with INSANE IATs with a bit of altitude.

Whats that? 660whp+ on a dynojet?

2.5inch downpipes and dual 2.5 inch exhaust and stock heads, lol. 3" downpipes and a bigger catback + cat delete should break 600wtq...

[Blake2423]

Oh sweet jesus, I just love these turbos

[uponone nogaro]

Nice good.numbers man

[joe dub]

deng

[micahmr2]

Nice!

[z00lander]

Very impressive

[AudiSportB5S4]

J-WOWW tune

Lol, I give you credit just for that.

Great numbers. These are the turbos selling for 2K? I mean, if they hold together why wouldn't one buy them?! Plans to hit the track? That's serious power.. And if they have a good powerband, could be really potent on the track.

What does the boost onset look like?

[jibberjive]

What were the uncorrected numbers for your previous 550whp dyno? What differences were made to your setup between now and then?

[itguy]

Lol, I give you credit just for that.

Great numbers. These are the turbos selling for 2K? I mean, if they hold together why wouldn't one buy them?! Plans to hit the track? That's serious power.. And if they have a good powerband, could be really potent on the track.

What does the boost onset look like?

20psi @ 4k

Track Friday night

What were the uncorrected numbers for your previous 550whp dyno? What differences were made to your setup between now and then?

1st dyno run was 72lb injectors at 6.5bar. One of the injectors popped so replaced with 96's and lowered to 4bar. Boost tapered from 28-25psi as the mbc was leaking. Holds flat now.

Correction looks roughly the same.

[rtl5009]

600 whp car right there.

Congrats. Nice work.

[Fourplay]

Wow, that's very impressive. You on E85?

[britishturbo]

Very nice numbers.

Would love to see what it does on 93 only though... E85 is a huge help for sure.
Lots of smoothing on that dyno plot, what did a non smoothed one look like?

30psi till redline?

[itguy]

We have a ton of rough pulls on many other cars on this dyno. I didnt notice the operator added a filter up top... No idea what the un-smoothed curve looks like

[britishturbo]

We have a ton of rough pulls on many other cars on this dyno. I didnt notice the operator added a filter up top... No idea what the un-smoothed curve looks like.

Then that's still a very smooth power delivery, filtering is pretty standard on dynos.

I'm gonna get a ride in this car when I come out right? :-)

[AudiSportB5S4]

20psi @ 4k

Track Friday night

Tonight? Good luck!

[itguy]

Ya, just need a clutch switch so anti lag works.

[FlyboyS4]

32psi - 604whp - 572wtq

They can flow 32psi without overspeeding too much :p

I would suggest if running an mbc, around 28psi OR spiking on n75 30-32 and tapering to high 20's by redline.

When you say 32 psi, what exactly is that referring to? An initial spike or what is held?

[Don Supreme]

The filter value is 80, you can see it on the graph.

[AudiSportB5S4]

Ya, just need a clutch switch so anti lag works.

Nice man.. I'll take mine out and send it FedEx Custom Critical... Should be there ASAP, probably only run you 5k in shipping. lol.

Random Vegas question - Is the Nurburgring copy still being considered to be built out there? Or did that thought go down with the rest of Vegas's economy in 2008?

[itguy]

Nice man.. I'll take mine out and send it FedEx Custom Critical... Should be there ASAP, probably only run you 5k in shipping. lol.

Random Vegas question - Is the Nurburgring copy still being considered to be built out there? Or did that thought go down with the rest of Vegas's economy in 2008?

Ya that was dropped sadly.

[Monty23]

What clutch are you running again?

[ggg20t]

..

[itguy]

What clutch are you running again?

Clutch net 6 puck disc with rs4 pp

[naudlee]

itguy - congrats, those turbos are working!

[britishturbo]

Clutch net 6 puck disc with rs4 pp

Sounds like quite a test for the clutch... any sign of slip on the road or is it holding good?

Post the FATS times for this bad boy

[britishturbo]

Btw how much air will each of those turbos flow at a PR of ~2:1 / 2.5:1?

[itguy]

Sounds like quite a test for the clutch... any sign of slip on the road or is it holding good?

Post the FATS times for this bad boy

Over 50 hard launches and no issues, hooks up every time. People dont understand that using these button clutches doesnt require as high clamping force. You can use a 4 button clutch with stock pp and hold over 600wtq.

If you can find a reliable, up to date compressor map of a 2283 wheel then you can probably answer better than me.

[zdriver]

i like

[britishturbo]

Over 50 hard launches and no issues, hooks up every time. People dont understand that using these button clutches doesnt require as high clamping force. You can use a 4 button clutch with stock pp and hold over 600wtq.

If you can find a reliable, up to date compressor map of a 2283 wheel then you can probably answer better than me.

Looks like combined they flow close to what my one turbo will...
Only mine won't quite run out of steam at 30psi... So it should be fun

[MikeyB3]

Niiiiiiiice.

[spd579]

So based of what I see these turbos fall just below 770's and a good bit above 605's..........could everyone agree that's accurate?

Or wait.....with ~25% drivetrain loss(AWD) these would texhnically almost identical 770's? (not seeeing how this is possible due to the 770 being larger in every way with a BB CHRA)

Math:

770/1.25= 616 whp
604/.8= 755 chp

.8 is derived from the percent change from 770 to 616 to keep things consistent

[FlyboyS4]

So based of what I see these turbos fall just below 770's and a good bit above 605's..........could everyone agree that's accurate?

If you could refer me to results from a built 605 engine with an E85 tune I'd be better able to give my 2 cents.

[Don Supreme]

So based of what I see these turbos fall just below 770's and a good bit above 605's..........could everyone agree that's accurate?

Or wait.....with ~25% drivetrain loss(AWD) these would texhnically almost identical 770's? (not seeeing how this is possible due to the 770 being larger in every way with a BB CHRA)

Math:

770/1.25= 616 whp
604/.8= 755 chp

.8 is derived from the percent change from 770 to 616 to keep things consistent

FYI, 770s have made over 700 awhp.

[rtl5009]

FYI, 770s have made over 700 awhp.

on e85 at 42 psi

[aysix]

FYI, 770s have made over 700 awhp.

on le dynojet! Also couldn't be attainable without some srm sawce!

[Don Supreme]

on e85 at 42 psi

on le dynojet! Also couldn't be attainable without some srm sawce!

You are both referencing the same car, there have been others that broke 700awhp (i.e. other fuel type, non-dyno jet, etc).

Regardless, this type of keyboard tuner comparison is a giant waste of time. However, I am sure we can both agree that the 770 is still probably capable of a bit more peak power. This still doesn't make it the best choice considering cost and other factors.

[aysix]

Regardless, this type of keyboard tuner comparison is a giant waste of time.

I don't get it.

I am sure we can both agree that the 770 is still probably capable of a bit more peak power.

don't think anyone would disagree with you there!

there have been others that broke 700awhp

Who?

[ThirdStrike]

<-- anxious to get a set of these compressors

I rode in op's car @ 24psi... my senses were pleased

[Don Supreme]

I don't get it.


Who?

I can think of 2 off the top of my head.

The RSWorx car and one of those AMS cars.