380 HP on pump gas with stock bottom end

Bill1966 · 11-16-2007, 01:16 AM

That is 325 WHP!!! 15/16 PSI with Hahn Stage IV with High Boost option. I hope to have a dyno-chart to share within the next few days. Power is abundant throughout RPM range. This is all on 93 octane from the local convenience store!

WOT in 1st gear = tire smoke
WOT in 2nd gear = tire smoke
WOT in gears 3 through 5 = hold on to your hat!

This car is a Bonafied Redline and Corvette killer.

A special thanks to Bill Hahn and company for making the "High Boost" option possible.

Blue04RedLine · 11-16-2007, 04:37 AM

That's pretty badass. I'd like to see some vids if ya have any from the dyno. Just want to hear the car.

OlSkyDriver · 11-16-2007, 08:06 AM

Sure sounds nice...but I was wondering....why did you decide to stay with a single exhust, instead of duel? Just sorta curious about that.

Bill1966 · 11-16-2007, 09:40 PM

Quote:

Originally Posted by OlSkyDriver

Sure sounds nice...but I was wondering....why did you decide to stay with a single exhust, instead of duel? Just sorta curious about that.

Dual exhaust on a 4 cylinder is for aesthetics only and may actually hurt performance.

BlueSkyRL · 11-16-2007, 10:01 PM

Quote "Redline and Corvette killer"...why would you want to kill your own kin folk

Bill1966 · 11-16-2007, 11:46 PM

Heres the dyno chart:

cerberus · 11-16-2007, 11:50 PM

Quote:

Originally Posted by Bill1966

Heres the dyno chart:

Wow.

I don't think my driver's license could handle that.

byronsky · 11-17-2007, 10:19 AM

Bill-Please explain what exactly the "high boost" option does? I thought the Stage 4 went up over 20psi? I see you are running at 15-16. I am going with an upgrade soon and am very interested!

Bill1966 · 11-17-2007, 11:50 AM

High Boost allows higher boost levels when running pump gas. You can send ecoboost (Bill Hahn Jr.) a private message for more details on the High Boost option.

StarlightSky · 11-17-2007, 12:04 PM

Gotta ask the question "What did the total cost add up to for production of the "Assassin Sky" you now own?

Bill1966 · 11-17-2007, 12:14 PM

Quote:

Originally Posted by StarlightSky

Gotta ask the question "What did the total cost add up to for production of the "Assassin Sky" you now own?

I dunno, I didn't keep track. does it matter? I think the wheels and tires set me back $5.5k. I think that there is a price list on Hahn's website for the turbo stuff.

SKY Spy · 11-17-2007, 12:55 PM

Hahn's website claims 380hp to the wheels with Stage 4... Your dyno sheet is not showing that???

BA...

Bill1966 · 11-17-2007, 02:39 PM

Quote:

Originally Posted by SKY Spy

Hahn's website claims 380hp to the wheels with Stage 4... Your dyno sheet is not showing that???

BA...

The Stage IV chart on the Hahn web site is for 19/20 PSI running a race gas mix. My chart is for 15/16 PSI on pump gas. Without the Hahn High Boost option you cannot run more than 10-12 PSI on straight pump gas because of predentonation (and that's if 92/93 pump gas is avaliable in your area). The High Boost option allows you to run higher boost on normal gas.

byronsky · 11-17-2007, 08:56 PM

Quote:

Originally Posted by StarlightSky

Gotta ask the question "What did the total cost add up to for production of the "Assassin Sky" you now own?

Here is my shot at it!

Hahn Stage 4 with options $6000
Exhaust $700
Greddy controller $400
BOV- $400
Wheels/Tires $5000
Clutch upgrade $600
Misc stuff $1500
Cost of Car $27000

TOTAL COST OF BUILD- $41,600

BlueSkyRL · 11-17-2007, 10:23 PM

Quote:

Originally Posted by Bill1966

Heres the dyno chart:

From what I see on the chart...I will stick with my RL because I like the low to mid "now" increase I have as opposed to your no real power until your above 4000 rpms. No dissing, but just a observation of how most after market turbo's generate power

Bill1966 · 11-18-2007, 12:54 AM

Just got back from a night of abusing my GM roadster. Shot a few vids. As you can see I need to invest in a shift light.

http://www.youtube.com/watch?v=cVj53w7b_yY

Bill1966 · 11-18-2007, 01:16 AM

Quote:

Originally Posted by BlueSkyRL

From what I see on the chart...I will stick with my RL because I like the low to mid "now" increase I have as opposed to your no real power until your above 4000 rpms. No dissing, but just a observation of how most after market turbo's generate power

Look at my video above and you'll see that I don't spend too much time
below 4000 RPM. My signifigant other drives a GXP and I drive it on a regular basis. I.M.H.O. the 2.0 turbo doesn't have more power 0-4000 RPM than my Sky. Power on both cars starts to kick in around 3300. I can tell you that my Sky is faster than than the GXP. The GXP does have better gearing (especially first and second) and handles better.

MidniteBlues · 11-18-2007, 07:33 PM

No offense but, would love to see this setup on an automatic-- It'll shift automatically "Before" hitting the limits..no guess work no looking for cops no power cut offs and no looking at the tach.. Just pure power and flying--

SCdyne · 11-18-2007, 09:23 PM

A couple of things to consider between the 2.0L and the 2.4L boosted.
1. Tuning software can't yet control the VVT.
2. Tuning software probably isn't controlling the wastegate on the 2.4L.
3. You would have to see the TPS to really judge spool up.
4. The automatic would be the ultimate boost solution. IMHO

When all is said and done, it VVT could be controlled along with wastegate then it could be very possible to see a flat Torque curve. Also this dyno run probably didn't rip WOT from 2000 to 6500 it probably wasn't WOT until 3500.
I'm guessing here with the way it was run on the dyno.

BlueSkyRL · 11-20-2007, 12:34 AM

Quote:

Originally Posted by SCdyne

A couple of things to consider between the 2.0L and the 2.4L boosted.
1. Tuning software can't yet control the VVT.
2. Tuning software probably isn't controlling the wastegate on the 2.4L.
3. You would have to see the TPS to really judge spool up.
4. The automatic would be the ultimate boost solution. IMHO

When all is said and done, it VVT could be controlled along with wastegate then it could be very possible to see a flat Torque curve. Also this dyno run probably didn't rip WOT from 2000 to 6500 it probably wasn't WOT until 3500.
I'm guessing here with the way it was run on the dyno.

WOW, good guess...you beat me to the post. I was thinking about that on/off today and would agree with your assessment.

SCdyne · 11-21-2007, 07:58 PM

Quote: ECcoboost - solforum
The thing to keep in mind is the peak boost level in this case, which is 16 PSI, so it takes a bit longer during a dynorun to achieve this level as compared to, for instance, an 8-9 PSI dynorun such as we typically show for a Stage II. During these dynoruns, we roll into the throttle at 2000 RPM, zero boost, start the test, then just keep it pinned to the floor until redline, so the turbo basically starts from dead zero. If we play around with trying to spool the turbo sooner, such as with multi-gear runs or other techniques, we can get to full boost sooner, but the results are hard to repeat consistently enough for effective dyno tuning.

On the street, in real-world loading conditions, peak boost is achieved earlier. I'm sure Bill can verify this a 3rd or 4th gear roll-on.

11-16-2007, 01:16 AM	#1 (permalink)
Bill1966 Senior Member Join Date: Apr 2007 Posts: 163 My Photos: (0)	380 HP on pump gas with stock bottom end That is 325 WHP!!! 15/16 PSI with Hahn Stage IV with High Boost option. I hope to have a dyno-chart to share within the next few days. Power is abundant throughout RPM range. This is all on 93 octane from the local convenience store! WOT in 1st gear = tire smoke WOT in 2nd gear = tire smoke WOT in gears 3 through 5 = hold on to your hat! This car is a Bonafied Redline and Corvette killer. A special thanks to Bill Hahn and company for making the "High Boost" option possible. __________________ 2007 2.4 Sky Borla Single Exhaust Hahn Stage IV Turbo with High Boost option Greddy Boost Controller Greddy BOV Hi-flow Cat Stage 3+ Clutch 19" OZ Superleggera III

11-16-2007, 04:37 AM	#2 (permalink)
Blue04RedLine First 2000 Sr. Member Join Date: Jun 2005 Location: Orlando, Fl Posts: 227 My Photos: (0)	That's pretty badass. I'd like to see some vids if ya have any from the dyno. Just want to hear the car. __________________ 2004 Saturn ION Red Line Mods: K&N Typhoon CAI Billetflow 2.7" pully (in blue) GM Stage Injectors (42.5# Lucas) GM Stage Tune B&G Springs Central FLorida RedLine Association (CFLRA) - Member #5

11-16-2007, 08:06 AM	#3 (permalink)
OlSkyDriver Senior Member Join Date: Jul 2007 Location: Ocala, Fl Posts: 549 My Photos: (0)	Sure sounds nice...but I was wondering....why did you decide to stay with a single exhust, instead of duel? Just sorta curious about that. __________________ "DEMON" Chilli Pepper Red 2.0T 5 speed Leather Dual Exhaust Spoiler Premium Audio W/6 Disc CD/MP3 Chrome Wheels Stubby Antenna Redline Warning Decal

11-16-2007, 11:46 PM	#6 (permalink)
Bill1966 Senior Member Join Date: Apr 2007 Posts: 163 My Photos: (0)	Sky Heres the dyno chart: __________________ 2007 2.4 Sky Borla Single Exhaust Hahn Stage IV Turbo with High Boost option Greddy Boost Controller Greddy BOV Hi-flow Cat Stage 3+ Clutch 19" OZ Superleggera III

11-17-2007, 10:19 AM	#8 (permalink)
byronsky Member Join Date: Mar 2007 Posts: 86 My Photos: (0)	Bill-Please explain what exactly the "high boost" option does? I thought the Stage 4 went up over 20psi? I see you are running at 15-16. I am going with an upgrade soon and am very interested! __________________ 07 Black/Black top, custom paint by Rick Bottom designs Full Eclipse system. 10" sub in custom box, DVD w/Navigation 20" Weld Evo wheels SSBS brakes Hahn Stage 2 turbo system Magnaflow dual exhaust Eibach Spring Kit

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11-16-2007, 10:01 PM	#5 (permalink)
BlueSkyRL First 2000 Sr. Member Join Date: Jun 2006 Location: Up North! Posts: 975 My Photos: (0)	Quote "Redline and Corvette killer"...why would you want to kill your own kin folk

11-17-2007, 11:50 AM	#9 (permalink)
Bill1966 Senior Member Join Date: Apr 2007 Posts: 163 My Photos: (0)	High Boost allows higher boost levels when running pump gas. You can send ecoboost (Bill Hahn Jr.) a private message for more details on the High Boost option. __________________ 2007 2.4 Sky Borla Single Exhaust Hahn Stage IV Turbo with High Boost option Greddy Boost Controller Greddy BOV Hi-flow Cat Stage 3+ Clutch 19" OZ Superleggera III

11-17-2007, 12:04 PM	#10 (permalink)
StarlightSky First 2000 Sr. Member Join Date: Jun 2006 Location: Tracy, Ca Posts: 691 My Photos: (0)	Gotta ask the question "What did the total cost add up to for production of the "Assassin Sky" you now own? __________________ In My garage!! 8/31/06 VIN#8059/Midnight Blue/Tan Leather/Tan Top/Manual/LSD/6 Disc/Chromed Wheels/Windscreen/Wheel Locks/Cold Air Intake/Splash Guards/Stubbie "B" "Here's wishing you all, Open Sky's" Member: WCKCC

11-17-2007, 12:55 PM	#12 (permalink)
SKY Spy Moderator Join Date: Aug 2005 Location: South Carolina Posts: 1,893 My Photos: (47)	Hahn's website claims 380hp to the wheels with Stage 4... Your dyno sheet is not showing that??? BA... __________________ 2nd SKY: 2008 RED on Red/Black Lthr RedLine Delivered - 7/14/08 Loaded Auto 3" Magnaflow, Lil Chromies & CAI 1st SKY: (Traded) 2007 Silver Graphite RedLine Loaded (-6CD) Deposit - 4/11/06 Order # KFDHH7 - 5/27/06 Delivered - 2/21/07

11-18-2007, 12:54 AM	#16 (permalink)
Bill1966 Senior Member Join Date: Apr 2007 Posts: 163 My Photos: (0)	Just got back from a night of abusing my GM roadster. Shot a few vids. As you can see I need to invest in a shift light. http://www.youtube.com/watch?v=cVj53w7b_yY __________________ 2007 2.4 Sky Borla Single Exhaust Hahn Stage IV Turbo with High Boost option Greddy Boost Controller Greddy BOV Hi-flow Cat Stage 3+ Clutch 19" OZ Superleggera III

11-18-2007, 07:33 PM	#18 (permalink)
MidniteBlues Senior Member Join Date: Aug 2006 Location: Florida Posts: 3,580 My Photos: (0)	No offense but, would love to see this setup on an automatic-- It'll shift automatically "Before" hitting the limits..no guess work no looking for cops no power cut offs and no looking at the tach.. Just pure power and flying-- __________________ 2.4L Midnight Blue, Premium Trim Package, Automatic, Monsoon Pre Audio 1-CD, Std Rear. GMPP CAI, 3M Clear Bra, Splash Guards, Black Top, Fiam Frwy Blastr 2-horn Opel Ant - WR V2 - Flux Capacitor -

11-18-2007, 09:23 PM	#19 (permalink)
SCdyne First 2000 Sr. Member Join Date: Oct 2005 Location: California Posts: 91 My Photos: (1)	A couple of things to consider between the 2.0L and the 2.4L boosted. 1. Tuning software can't yet control the VVT. 2. Tuning software probably isn't controlling the wastegate on the 2.4L. 3. You would have to see the TPS to really judge spool up. 4. The automatic would be the ultimate boost solution. IMHO When all is said and done, it VVT could be controlled along with wastegate then it could be very possible to see a flat Torque curve. Also this dyno run probably didn't rip WOT from 2000 to 6500 it probably wasn't WOT until 3500. I'm guessing here with the way it was run on the dyno.

11-21-2007, 07:58 PM	#21 (permalink)
SCdyne First 2000 Sr. Member Join Date: Oct 2005 Location: California Posts: 91 My Photos: (1)	Quote: ECcoboost - solforum The thing to keep in mind is the peak boost level in this case, which is 16 PSI, so it takes a bit longer during a dynorun to achieve this level as compared to, for instance, an 8-9 PSI dynorun such as we typically show for a Stage II. During these dynoruns, we roll into the throttle at 2000 RPM, zero boost, start the test, then just keep it pinned to the floor until redline, so the turbo basically starts from dead zero. If we play around with trying to spool the turbo sooner, such as with multi-gear runs or other techniques, we can get to full boost sooner, but the results are hard to repeat consistently enough for effective dyno tuning. On the street, in real-world loading conditions, peak boost is achieved earlier. I'm sure Bill can verify this a 3rd or 4th gear roll-on. Last edited by SCdyne : 11-21-2007 at 07:58 PM. Reason: details