|
|
|
|
Thread Tools | Display Modes |
04-22-2015, 03:43 AM | #1 |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
Cavalli Stage 2 E85 370hp/375tq
So after a few hardware kinks were ironed out I got my E85 tune done tonight. Car is a 2005 STI with all the bolt ons and a stock motor. Turbo was the Cavalli Stage 2 @ 20 PSI. Car made 370 awhp/ 375 tq. My 91 octane tune was completed a couple weeks prior to this and it made 315 awhp/ 295 tq and turbo was @ 14 psi. I gave my opinions, good and bad, on the Cavalli in the thread started here on Nasioc by RallySportDirect if anyone is interested in seeing more info.
Shop---Soulless Performance in Mesa, AZ Elevation-- 1000ft Temp---- 85 degrees F Dyno----- Dyno Dynamics Parts on this car include the following... Cobb V3, ID 1000cc injectors, AEM fuel pressure regulator, Walbro 450, GrimmSpeed Downpipe, Invidia catless uppipe, Tomei expreme unequal length header, Fujitsubo power getter 3" exhaust, TGV deletes, Cobb SF intake w/ Cobb post MAF hose and heat shield, Perrin turbo inlet, Grimmspeed TMIC, GrimmSpeed 3 port boost cont solenoid, and Cavalli Stage 2 turbo.
* Registered users of the site do not see these ads.
Last edited by aeromech; 04-23-2015 at 09:03 PM. Reason: Edited temperature, location, and added mods. |
04-22-2015, 04:07 AM | #2 |
Scooby Newbie
Member#: 371774
Join Date: Oct 2013
|
hows this turbo compared to blouch 1.5xtr
|
04-22-2015, 04:59 PM | #3 |
Scooby Specialist
Member#: 270482
Join Date: Jan 2011
Location: albany ny
Vehicle:2011 turbotek fxt 11.85@117 4eat xt record? |
I think its more a td05 18 size.
|
04-22-2015, 09:48 PM | #4 |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
For a stock location turbo, it is similar in supported horsepower and output. Rallysport says it's very similar to the Blouch 1.5 and the owner of Cavalli says it's even on par with the Dom 2.5 XTR. The Cavalli is a triple ceramic ball bearing turbo though, and all components are designed in house besides the bearings themselves, which are made in Germany. Im trying to figure out how to post my dyno graph for 91 and E85, so i'll get that up soon.
|
04-22-2015, 09:49 PM | #5 |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
Last edited by aeromech; 04-22-2015 at 10:03 PM. |
04-25-2015, 03:53 AM | #6 |
Scooby Specialist
Member#: 29292
Join Date: Nov 2002
Chapter/Region:
SCIC
Location: Orange County CA
Vehicle:2004 WRX wagon silver |
|
04-28-2015, 02:55 AM | #7 |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
It flows more than an 18g but looks very similar from the outside. One thing I have noticed with this turbo on both tunes is that the torque drops off pretty hard past 5000 rpm. On my E85 tune i hit max torque at 5000rpm and at 375 ft/lbs. By redline my torque is right around 260 ft/lbs. That's a pretty steep drop when i would really like to see the power pull hard. Not to mention that full boost isn't acquired until around 5000 rpm. So max torque and max boost both hit at 5k, but the power tapers off really fast. It's nice and punchy and all, but I think I'm going with a GT3076 instead for a stock location turbo. I'll give the Cavalli some more throttle time before I make the final decision. And before anyone says it must be the tune, my tuner is pretty damn experienced with these cars. He's the only Cobb ProTuner in damn near all of Arizona, and he learned from some of the best minds in the Subaru world.
|
04-28-2015, 03:13 AM | #8 |
Scooby Specialist
Member#: 29292
Join Date: Nov 2002
Chapter/Region:
SCIC
Location: Orange County CA
Vehicle:2004 WRX wagon silver |
The 54lb/min is a lot more than a 18gxt that's like close to a 3071 or so
|
04-28-2015, 04:16 AM | #9 |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
The jury is still out on whether or not it's really capable of that output though. A 54lb turbo should be able to push over 500 hp easy. I have yet to see any, including RallySport's 15 STI (which is a stage 3, not stage 2) get anywhere close to that. The specs look promising, but the end result has alot of people (including tuners) scratching their heads. I think the design needs to be refined. Its a great concept with the ceramic ball bearings and all, but the in house designed stuff needs some work. Garret got it right and it has been proven time and time again in both the GT3076 and GT3576. If it aint broke, don't fix it. And trust me I aint hating on their turbo, i'm running it for christ sake. That said, I expected much more considering the overall investment in my build.
|
04-28-2015, 04:20 PM | #10 |
Scooby Specialist
Member#: 29292
Join Date: Nov 2002
Chapter/Region:
SCIC
Location: Orange County CA
Vehicle:2004 WRX wagon silver |
Yeah I know with not only thing turbo but all these turbos that claim big lb/min numbers most just don't seem to add up
|
04-28-2015, 05:19 PM | #11 |
Scooby Specialist
Member#: 206851
Join Date: Mar 2009
Chapter/Region:
MWSOC
Vehicle:56 Belair Pro Street |
Keep in mind, low octane and that high ambient IAT are keeping timing low. I think on 93 and anywhere a bit more temperate, and you'd see some big gains. I also assume you have Turner doing the tune, and he is not one to sacrifice longevity for a bit more power, from what I've seen.
|
04-28-2015, 06:09 PM | #12 | |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
I disagree with that statement. On some dynos you'd never hit that number.
Fully maxed out on built motor/cams and on a dynojet you might see 500-540whp Quote:
|
|
04-28-2015, 08:16 PM | #13 |
Scooby Specialist
Member#: 383633
Join Date: Mar 2014
Chapter/Region:
RMIC
Location: Yampa, CO
Vehicle:2002 Impreza WRX Silver |
I just saw a stage 1 cavalli put down 390WHP on E85 and it spooled much sooner even at 5000'. There must be a problem somewhere.
|
04-28-2015, 09:52 PM | #14 |
Scooby Newbie
Member#: 358808
Join Date: Jun 2013
Chapter/Region:
South East
Location: Raleigh, nc
Vehicle:2003 Hybrid WRX White |
|
04-28-2015, 11:24 PM | #15 |
Scooby Specialist
Member#: 344329
Join Date: Jan 2013
Location: Summit County
Vehicle:2008 Wrx, 6mt |
And that stage one was on a dyno dynamics. (And that peticular one doesn't spool turbos well)
Last edited by point78; 04-28-2015 at 11:32 PM. |
04-30-2015, 06:54 PM | #16 |
Scooby Specialist
Member#: 127099
Join Date: Sep 2006
Chapter/Region:
BAIC
Vehicle:02 IMPERZA WRX BLACK |
idk why but thats not much power at all.. i just made 365AWHP and 445tq on E85 with my VF39. i thought this turbo on E85 would be mid 400 hp and tq
|
05-01-2015, 12:28 PM | #17 |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
My tuner and Cavalli are in the process of troubleshooting for my setup. That's all I'm gonna say. I will mention that I am on a stock motor and that I told my tuner above all else to keep the tune safe and reliable. Alot of tuners out there pushing the most they can on E85 to make their customer happy. Until i build my motor, I want longevity. Im sure he could have extracted another 50 whp and tq if he had gone beyond 20 psi and upped timing. Also, I wasn't tuned for pure E85 summer blend, but to accommodate for both high quality and low quality E85. My dyno sheet shows E74 as the actual fuel type tuned for.
Last edited by aeromech; 05-02-2015 at 05:31 PM. |
05-04-2015, 03:21 AM | #18 | |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
Quote:
|
|
05-04-2015, 03:32 AM | #19 |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
Generally speaking the smaller the turbo the quicker the spool, so that's not all that alarming. What dyno was that car tuned on and what was target boost and timing? I've seen alot of cars throw down well over 400 hp and torque, but then again they were over 20 psi and most had built motors; a few were on stock motors as well. Im on a stock motor, so one of the things my tuner and I agreed on was keeping it under 400 at the wheels. He wouldn't have gone over 400 if I begged him to, not until I build my motor at least. One thing you guys need to understand is that i am nowhere near maxed out on my current setup. This car was tuned for reliability, not bragging rights.
|
05-04-2015, 06:36 AM | #20 |
Scooby Specialist
Member#: 344329
Join Date: Jan 2013
Location: Summit County
Vehicle:2008 Wrx, 6mt |
That video I posted above is the Cavalli stage 1, e85, at 5000'.
It's on a dyno dynamics, and this particular one always spools turbos a little slow due to its ramp rate, or something? (I think stock on this one is usually about 215, and a stage 2 91pump is about 275hp, for reference) He said they kept the tune mild due to the stock engine & not wanting to push it(from experience with him, that's usually under 400hp and 20psi on corn.)-but if you look at the plot at the end, it looks really nice. Hell, the stage 1 out spooled my 38lb 16g on this same dyno, and held torque pretty well. How does your plot look compared to the one in the video? Seems like something is definately going on with yours? |
05-04-2015, 09:18 AM | #21 |
Scooby Specialist
Member#: 383633
Join Date: Mar 2014
Chapter/Region:
RMIC
Location: Yampa, CO
Vehicle:2002 Impreza WRX Silver |
Harvey is a good tuner and I doubt he is pushing the engine hard especially with the stock internals . In all my experience with working with him he is not into going to push an engine too hard, erring towards safety.
|
05-04-2015, 11:52 AM | #22 | |
Scooby Newbie
Member#: 415519
Join Date: Mar 2015
Chapter/Region:
SWIC
Location: Surprise, AZ
Vehicle:2005 WRX STi Obsidian Black Pearl |
Quote:
Last edited by aeromech; 05-04-2015 at 12:15 PM. |
|
Thread Tools | |
Display Modes | |
|
|