Unleashed-Performance

Well....not twin turbo yet. We just pick it up today. But hopefully in the next few weeks it will have our custom Oil-Less Rear Mount Twin Turbo System on and running with the factory Supercharger as well. We're gonna see just how far we can push some compound boost on this beast!!


Photo Album on our Facebook page:
http://www.Facebook.com/Unleashed-Performance


Baseline Dyno video, track times, and build thread to follow. So, STAY TUNED!!!

I8UR4RD

iTrader: (16)

wow. have not seen compounding in a while. this should be very interesting.

jleews6

iTrader: (2)

I say 750rw will be easy.Looking forward to the results.

Unleashed-Performance

We've already made 831rwhp on a cam-only 2010 SS with our TT kit at 15lbs of boost. And the 2010 SS we just finished kit #002 on yesterday made 708rwhp at 10lbs. So it'll be interesting to see when the SC becomes the restriction on our ZL1.

chuntington101

Once the SC becomes a restrition please be sure to remove it and set what the system can do at max effort!

JAX04

iTrader: (17)

Im gonna subscribe..

Reckless

iTrader: (9)

Rob, is it top, bottom, or rear mount?

3800SII

x2 on that. Let me be the first to say the word "OVERKILL" is probably not
in your vocabulary. After seeing some GTP twincharged setups and Hellion Mustang systems, this is going to be a true beast!

Most compound systems make a ton of torque and power down low. Are you going for maximum HP with minimal boost from the turbos? Do you think there will be an issue with wheelspin? I am really curious to see how the dyno is going to look.

N2OBaby

Interesting.

I've seen compound boosting with 281 4.6L Fords and it even makes them fast can you imagine what it would do on an LS9?

chuntington101

It will make more power on turbos only, simply because there is less drag on the engine (no SC) and there is less restriction in the intake system. However the low / mid range will be seriously boosted thanks to the engine seeing boost from just off idle. You often see a more gradual increase in boost than you would normally see on a turbo only engine, so you will start to see the turbos spooling MUCH sooner but the transition to making full boost taking a little longer than turbo only.

Unleashed-Performance

Stock dyno numbers are in:

492whp / 497wtq - Completely stock with less than 100 miles on it. 85 degrees and 24% humidity.

Looks like there may be some power in tuning it, but I won't know until HPTuners can get me an updated version of the software to unlock it.

Reckless - This will be our same rear mount oil-less twin turbo system.

Stock track times coming tomorrow.....

3800SII

Right, and what I was thinking is that it should make a stupid/ridiculous amount of power down low! I love seeing projects like this where people try to push the limits. I am willing to be that the dyno graph will resemble a 35 degree angle at full throttle

ren987

iTrader: (4)

sounds like a fun project. How long do you think it will take to do all the fab work? I imagine you guys are getting pretty good at these rear mount set ups they look like a ton of fun!

Unleashed-Performance

If all goes as planned, we will be at the Holley LSx Fest September 7-9 at Beech Bend. If it's not done, we'll bring it without the turbo's and bring our turbo C5. But I think it'll be done. We have all the fixtures completed to duplicate the kit already. But with the larger 9.9" rear end, magnetic ride suspension and belly pan on the ZL1, we're going to have to make some changes to some of the piping.

Also, HPTuners came to the rescue and got us software that I can tune it with now. So it's getting a dyno tune tomorrow before the track. Then we'll run it at the track with the stock tune, and RaymerTune.

We'll keep you posted!

SSZ

oh yeah. I cant wait to see some results after tuning. This should be interesting!

Unleashed-Performance

Just got in from test n tune at Beech Bend, where we laid down some baseline 1/4 mile passes (dyno sheets, videos and timeslips to follow).


Quick summary (because it's after 5am):


Dyno Results

Stock Dyno numbers with only 100 miles on the odometer - 490whp / 496wtq
RaymerTuned (no changes other than tuning from stock) - 534whp / 515wtq
Shockingly, a gain of 44whp and 19wtq from just the tune alone! And there may be more in it, but we ran out of time and needed to leave for the track.


At the Track:


Completely Stock with Stock tune on stock F1 Tires

60' 2.157
330' 5.614
1/8 8.387
mph 90.54
1000' 10.753
1/4 12.745
mph 113.35

** I have to admit, I was really disappointed and almost ready to pack it up and go home after seeing how slow this tank was. Instead, I threw my tune in it and headed back to the line....


RaymerTuned ONLY

60' 1.999
330' 5.340
1/8 8.013
mph 93.95
1000 10.298
1/4 12.214
mph 117.50

And a few passes later (same tune, no other changes)

60' 1.932
330' 5.212
1/8 7.849
mph 95.14
1000' 10.106
1/4 12.007
mph 118.43

So, with a tune only, we went from 12.74 @ 113, to a 12.00 @ 118!!


We were really hoping for an 11 second pass on stock tires, but time and traction were against us tonight. We may hit the track one more time before the turbo's go on and see if we can find an 11 second slip. Either way, we'll share the results here when we get them.

I8UR4RD

iTrader: (16)

cant complain about 7 tenths with a tune only on shitty street tires. great job.

98Z28CobraKiller

iTrader: (17)

My buddy just sold his compound boost TT Shelby GT500 but his wasn't rear mount. Should be interesting. The blower should swallow up the lag inherent to rearmounts nicely.

jleews6

iTrader: (2)

Thats what I was thinking about the lag. Am I thinking right in that if the blower is capable of roughly 700hp at 15 pounds on an LSA then it should be able to make well over 1000 with 14 more going into it. In other words,even though the blower is small it wont become a restriction because it's being forced before the blower?

86lxnotch

iTrader: (3)

nice numbers but those untuned vs tuned runs are somewhat iffy imo. your 60' was .2 better with the tune so of course itll go much faster. in reality i would expect the 60' to get slightly worse you a little more power but no more traction available. again they are awesome numbers either way but saying .7 isnt accurate. i would call it a solid .3 MAYBE .4 gain