Quest for 200MPH - Page 2 - Saturn Sky Forums: Saturn Sky Forum
General Saturn Sky Discussion Forum for discussing general topics on the Saturn SKY.

User Tag List

 9Likes
Reply
 
LinkBack Thread Tools Display Modes
post #16 of 557 (permalink) Old 09-02-2014, 08:52 AM Thread Starter
Senior Member
 
RickyD's Avatar
 
Join Date: Aug 2006
Location: Mobile AL.
Posts: 1,811
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
Garage
I really wanted to stick with the S/C

Quote:
Originally Posted by miller11386 View Post
supercharger is the wrong choice. IAT will go to the moon.
Granted a big turbo would make more but I like the 'off the line responce' of a S/C. lbs/HP= how quick you get from point A to B but as far as top speed the weight really has very little effect. Its all about HP and drag that= top speed.

Soon to be a LS3 but:
Lysholm 1.6 supercharger
T56 6 speed transmission
2.4 with L61 cyl head
Non VVT comp cams
DDM long tune header.
RK hood & Grnd Effects
DDMWorks suspension mods
AEM Meth Injection kit.
Elect exhaust cutout
VDI Doors
RickyD is offline  
post #17 of 557 (permalink) Old 09-02-2014, 12:41 PM
Senior Member
 
wspohn's Avatar
 
Join Date: Aug 2009
Posts: 2,166
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 312 Post(s)
Garage
Quote:
Originally Posted by RickyD View Post
When I went in March and will again in Oct the Lamborghini Aventadors were running 178-186 in the mile. Now those cars weigh 3465 lbs (lbs more then a sky) sure they have HP but the torque is considerably lower then the HP at 511lbs and their drag coefficient is .33 compared to our stock little cars at .42, Camaro- 37, Mustang -36 and the 2017 Corvette Stingray at a ridiculously low .29! I almost find it hard to believe that a Mustang with its huge front end as a lower frontal drag area then a Sky so I think the .42 is a little high but what ever.
It will be a fun project I think.
You really are a caft dunt.

The stock C7 Corvette with a Cd of .29 and 460 bhp tops out at 185 mph, but with a Kappa with a Cd of .45 and the same power, you figure you can do 200?

Here is a post from the other site:

Quote:
I've known the frontal area and CdA since my original post. The frontal area is 21.1 ft^2. That's almost the same as the much bigger Corvette. The Solstice's CdA is 9.5. For comparison purposes, here are some CdA's followed by the pounds of force exerted on the car @ 70 and 150 MPH (assuming each car could hit 150):

Nissan 350Z: 5.8 CdA, 77 pounds @ 70 MPH, 353 pounds @ 150 MPH
C6 Corvette: 6.16 CdA, 82 pounds @ 70 MPH, 375 pounds @ 150 MPH
Porsche 911: 6.8 CdA, 90 pounds @ 70 MPH, 413 pounds @ 150 MPH
Dodge Viper: 7.7 CdA, 102 pounds @ 70 MPH, 468 pounds @ 150 MPH
Scion xB: 7.7 CdA, 102 pounds @ 70 MPH, 468 pounds @ 150 MPH
Miata: 8.01 CdA, 106 pounds @ 70 MPH, 487 pounds @ 150 MPH
Honda S2000: 9.08 CdA, 120 pounds @ 70 MPH, 552 pounds @ 150 MPH
Solstice: 9.5 CdA, 126 pounds @ 70 MPH, 578 pounds @ 150 MPH
New Beetle: 9.6 CdA, 127pounds @ 70 MPH, 584 pounds @ 150 MPH
Chrysler T&C Minivan: 10.9 CdA, 144 pounds @ 70 MPH, 663 pounds @ 150 MPH
Cadillac Escalade: 12.89 CdA, 171 pounds @ 70 MPH, 784 pounds @ 150 MPH

The Solstice is running about 5050 RPM in fifth gear at its top speed of 142 MPH. At that speed, there is 518 pounds of force pushing back against the car due to wind resistance. Factoring in the drivetrain loss, gear ratio, axle ratio, and tire size, that's about how much force the engine can deliver to the ground at that speed, so that explains the top speed on the car. If the car had a drag coefficient of .35 (which is still kinda poor by today's standards) instead of .45, I calculate it could hit about 160.

This might be an interesting thread for you.


pickups and even a Scion more aerodynamic than Solstice! - Pontiac Solstice Forum

1957 Jamaican MGA
1958 MGA Twincam
1962 MGA Coupe
1971 Jensen Interceptor
2007 BMW Z4M coupe
2009 Pontiac Solstice GXP Coupe
departed
1965 Jensen CV8
1969 MGC roadster,
1969 Lamborghini Islero S
1988 Pontiac Fiero GT

Bill in BC
wspohn is offline  
post #18 of 557 (permalink) Old 09-02-2014, 02:57 PM
Senior Member
 
Join Date: Oct 2011
Location: Mainz, Germany
Posts: 868
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 130 Post(s)
I reached 156 MPH in my Sky yesterday when the road was open. I believe it had more to give, but the noise at that speed is incredible, and the look from the lady (who had her hands over her ears) was an indicator that enough was enough.

Given the amount of noise at that speed, and the difference in noise from 130 to 156 MPH, I couldn't imagine going another 44 MPH faster than that. As it is I am worried I will rip the roof right off!

We were driving in Bayern, and I did manage to average 121 MPH over a 60 mile stretch, which I was quite pleased by. Where I live it is typically nothing but a major traffic jam so it is quite an experience to get to make such excellent time.
mstrjon32 is offline  
post #19 of 557 (permalink) Old 09-02-2014, 04:24 PM
GT!
Senior Member
 
GT!'s Avatar
 
Join Date: Jun 2009
Location: Montreal, Canada
Posts: 920
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
I wonder if it would be better driving with the top down at that speed

-GT
GT! is offline  
post #20 of 557 (permalink) Old 09-02-2014, 04:42 PM
Senior Member
 
Join Date: Oct 2011
Location: Mainz, Germany
Posts: 868
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 130 Post(s)
Quote:
Originally Posted by GT! View Post
I wonder if it would be better driving with the top down at that speed
I have done about 140 with the top down. I would say it is just as loud, but significantly windier.
mstrjon32 is offline  
post #21 of 557 (permalink) Old 09-02-2014, 07:11 PM
Member
 
Elff's Avatar
 
Join Date: Jun 2008
Location: Keebler, PA
Posts: 4,356
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 255 Post(s)
Garage
Please video tape all attempts. I have a feeling one of them is going to be epic, just not sure what the cause of Epic-ness will be yet.

LUSIFER is Sold!
say hello to
RYUK

I'm not short, I'm concentrated AWESOME
Elff is offline  
post #22 of 557 (permalink) Old 09-02-2014, 07:29 PM
Senior Member
 
|V3nom|'s Avatar
 
Join Date: May 2008
Location: Denham Springs, LA
Posts: 2,055
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by RickyD View Post
Ok Guys and Gals if you remember back in Janurary I was talking about changing the gear ratio in our trany's and getting ready to build my car to be the first Saturn Sky to go 200MPH.
https://www.skyroadster.com/forums/f2...mission-49578/

Well its time to start.
Now that I've bought a new Lysholm/Whipple 1.6 supercharger its time to start the build thread.
Yes I am still working in Texas going back and forth so it will start slow but hoping to have everything done within the next 6-7 months. Other then DDM Dave helping with some motor and trany work its all my labor and money going into the project. Its not like, here Dave take my 10K and do what you can, type of thing. I do all my own work. I wanted to start with the T56 trany but now that I got the new S/C I'll start with that first. Here's some pictures of the new unit. I am not going to take it apart because its brand new but here are some pictures of how the twin screws are made.
TWINCHARGE! gives you the low end s/c grunt and take off with the high end hp of a turbo! this seems like a great s/c to do this with. the one ddm currently uses wont work because it sits where the turbo would go, but this twin screw, if im not mistaken, will replace the intake manifold.

id love to see a twincharge setup on the lnf!

GM Stage 1 Tune|Solo Street Race Exhaust With Magnaflow Mufflers|GMR 8K HIDs|Parking Light Leds|License Plate Leds|Little Chromies|3rd Brake Light Vinyl:REDLINE|GMR Pulsating and Sequential Taillights|
|V3nom| is offline  
post #23 of 557 (permalink) Old 09-03-2014, 01:14 AM
Super Moderator
 
Robotech's Avatar
 
Join Date: May 2006
Location: Temecula, CA
Posts: 10,532
Mentioned: 59 Post(s)
Tagged: 3 Thread(s)
Quoted: 1641 Post(s)
Garage
Quote:
Originally Posted by Elff View Post
Please video tape all attempts. I have a feeling one of them is going to be epic, just not sure what the cause of Epic-ness will be yet.
X2! What's the old saying, pictures (vids in this case) or it didn't happen? LOL

Quote:
Originally Posted by |V3nom| View Post
TWINCHARGE! gives you the low end s/c grunt and take off with the high end hp of a turbo! this seems like a great s/c to do this with. the one ddm currently uses wont work because it sits where the turbo would go, but this twin screw, if im not mistaken, will replace the intake manifold.

id love to see a twincharge setup on the lnf!
Oohhhh...never thought of that...that would rock but be very complex. I know similar builds have been done just would be interesting to see it done like this. Actually, doing it with the M62 would might be better since twin screws really move a ton of volume and have more parasitic drag than the roots.


V.A.L. (#1108)
2007 2.4 Base
MagnaFlow dual outlet, quad tip exhaust test car
**Sold**

Max (#1547)
2007 TURBO 2.4
Too much to list here. See my Garage for details.

Last edited by Robotech; 09-03-2014 at 01:17 AM.
Robotech is offline  
post #24 of 557 (permalink) Old 09-03-2014, 04:00 AM
Senior Member
 
40rty's Avatar
 
Join Date: Dec 2010
Location: San Diego
Posts: 1,199
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Would a top like this help with drag? I've done 147mph in it already. When I had the soft top at that speed I would get a loud vibration. With this top so far I don't.
Tweetybird likes this.

2007 Sky Redline: DDMWorks V8 Conversion- LS376 525hp 6.2L, TR6060 6-speed, Custom Magnaflow exhaust, DDMWorks Backbone brace, DDMWorks Pro Beam, BC Coilovers, Wilwood(Front)BBK, Norms Full Hardtop and Rear facia. Tuned on LS2Edit
40rty is offline  
post #25 of 557 (permalink) Old 09-03-2014, 10:58 AM
Senior Member
 
wspohn's Avatar
 
Join Date: Aug 2009
Posts: 2,166
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 312 Post(s)
Garage
Quote:
Originally Posted by GT! View Post
I wonder if it would be better driving with the top down at that speed

-GT
No, far less aerodynamic. The coupe is the best way to go.

1957 Jamaican MGA
1958 MGA Twincam
1962 MGA Coupe
1971 Jensen Interceptor
2007 BMW Z4M coupe
2009 Pontiac Solstice GXP Coupe
departed
1965 Jensen CV8
1969 MGC roadster,
1969 Lamborghini Islero S
1988 Pontiac Fiero GT

Bill in BC
wspohn is offline  
post #26 of 557 (permalink) Old 09-03-2014, 12:16 PM
Super Moderator
 
Robotech's Avatar
 
Join Date: May 2006
Location: Temecula, CA
Posts: 10,532
Mentioned: 59 Post(s)
Tagged: 3 Thread(s)
Quoted: 1641 Post(s)
Garage
Quote:
Originally Posted by 40rty View Post
Would a top like this help with drag? I've done 147mph in it already. When I had the soft top at that speed I would get a loud vibration. With this top so far I don't.
The teardrop shape of that roof should help with the boundary layer of air remaining in contact with the surface of the car for a longer period of time thus reducing the amount of pressure drag experianced by the car (and thus a reduction of the overall drag coeffiecent of the car).

The design of the convertable top, with the flying buttresses and flat rear window between them, really is the worst case scenario as seen by the published CdAs. Whether or not this top would produce better numbers than the coupe would only be determined in a wind tunnel but it should almost certainly produce substantially better numbers than the convertable top.


V.A.L. (#1108)
2007 2.4 Base
MagnaFlow dual outlet, quad tip exhaust test car
**Sold**

Max (#1547)
2007 TURBO 2.4
Too much to list here. See my Garage for details.

Last edited by Robotech; 09-03-2014 at 12:18 PM.
Robotech is offline  
post #27 of 557 (permalink) Old 09-03-2014, 12:20 PM
Senior Member
 
wspohn's Avatar
 
Join Date: Aug 2009
Posts: 2,166
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 312 Post(s)
Garage
My response had nothing to do with the coupe top, it answered the question of whether the convertible top down (a worst case) was more aerodynamic than top up.

The coupe design is more aerodynamic than the convertible with the top up. I assume that the top shown in the picture above IS basically a coupe top on a vert or a coupe?

1957 Jamaican MGA
1958 MGA Twincam
1962 MGA Coupe
1971 Jensen Interceptor
2007 BMW Z4M coupe
2009 Pontiac Solstice GXP Coupe
departed
1965 Jensen CV8
1969 MGC roadster,
1969 Lamborghini Islero S
1988 Pontiac Fiero GT

Bill in BC
wspohn is offline  
post #28 of 557 (permalink) Old 09-03-2014, 12:29 PM
Super Moderator
 
Robotech's Avatar
 
Join Date: May 2006
Location: Temecula, CA
Posts: 10,532
Mentioned: 59 Post(s)
Tagged: 3 Thread(s)
Quoted: 1641 Post(s)
Garage
Quote:
Originally Posted by wspohn View Post
My response had nothing to do with the coupe top, it answered the question of whether the convertible top down (a worst case) was more aerodynamic than top up.

The coupe design is more aerodynamic than the convertible with the top up. I assume that the top shown in the picture above IS basically a coupe top on a vert or a coupe?
Yea, I got a little over clicky. LOL Post fixed. The top shown, I believe, is an aftermarket fastback style top for the Sky.


V.A.L. (#1108)
2007 2.4 Base
MagnaFlow dual outlet, quad tip exhaust test car
**Sold**

Max (#1547)
2007 TURBO 2.4
Too much to list here. See my Garage for details.
Robotech is offline  
post #29 of 557 (permalink) Old 09-03-2014, 12:49 PM
Senior Member
 
40rty's Avatar
 
Join Date: Dec 2010
Location: San Diego
Posts: 1,199
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Yes, it's Norms Full Hardtop. Anchored in at 3 points in the car. The only thing I would say would not be aerodynamic on the hardtop are where the door windows meets the B pillar(if that's what it's called). In the morning I had some dew in that area and after a run someone where I can see how the wind plays with the water on the top. Looks like the wind abruptly hits that pillar and shoots outward causing a marginal parachute effect. Other than that on the rest of the top the dew simply and somewhat uniformly moves towards the rear of the car to the bill. Wind tunnel, like everyone here is talking about is a must. Also, doesn't the cars rear facia produce a parachute affect? Even Norms facia does as well.

2007 Sky Redline: DDMWorks V8 Conversion- LS376 525hp 6.2L, TR6060 6-speed, Custom Magnaflow exhaust, DDMWorks Backbone brace, DDMWorks Pro Beam, BC Coilovers, Wilwood(Front)BBK, Norms Full Hardtop and Rear facia. Tuned on LS2Edit
40rty is offline  
post #30 of 557 (permalink) Old 09-03-2014, 12:52 PM
First 2000 Sr. Member
 
DaveOC's Avatar
 
Join Date: Oct 2005
Location: SE Wisconsin
Posts: 2,710
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Garage
I see Mr. 40rty beat me to it:

Quote:
Originally Posted by Robotech View Post
Yea, I got a little over clicky. LOL Post fixed. The top shown, I believe, is an aftermarket fastback style top for the Sky.
The top shown is from Norm's Fiberglass and is patterned on the Solstice Coupe top. modified to fit the convertible window shape, and further modified to fit the Sky body shape in the rear.

http://normsfiberglass.com/sky.html

.

Dave -
2006 Solstice NA #000741

Last edited by DaveOC; 09-03-2014 at 12:55 PM.
DaveOC is online now  
Reply

  Saturn Sky Forums: Saturn Sky Forum > Saturn Sky Discussion > General Saturn Sky Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Saturn Sky Forums: Saturn Sky Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 2 (0 members and 2 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome