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Old 01-28-2018, 11:14 PM   #1 (permalink)
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Saturn Ion aero...

So Iíve got a tough question for you guys and maybe you can help... I canít find the drag coefficient for my Saturn Ion sedan... I read that the coupe was 0.31 but Iím not sure about the sedan... I know that the coupe front end can be swapped onto the sedan(and it looks better IMO) but would it help aero? It looks sleeker... ideally I would do it with the Redline bumper cover which would eliminate the upper grille opening completely and be a little lower and itís lower lip is reminiscent of a splitter...

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Old 01-29-2018, 02:51 AM   #2 (permalink)
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So I also read that apparently the sedan has a Cd of .32, so for aero alone it isnít worth swapping to the coupe front end, at least when you factor in ROI
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Old 01-31-2018, 01:23 AM   #3 (permalink)
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It looks like you answered your own question.

Have you thought about mods you could do without the front end swap or Redline bumper cover? I haven't looked at an example, but I'll bet there is something that can be done.
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Old 01-31-2018, 01:37 AM   #4 (permalink)
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I was mainly considering the front end swap for aesthetic purposes, but I also imagined that it would be sleeker, given its looks...

In theory if I sacrificed my Redline instead of giving it yet another engine, I'd have all the front end parts I would need for free, but I couldn't give up my LSJ powered rocket ship lol

Right now I've got some grille blocks but I eventually wanna do all the things I had done with the Malibu(rear wheel skirts included)...

I would also like to do a set of ventilated fenders(like OG VX) and a full undertray
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Old 02-01-2018, 10:34 PM   #5 (permalink)
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You may find the biggest gains may be working on the air flow over the rear. Every little bit helps.
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Old 02-03-2018, 10:25 AM   #6 (permalink)
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Iím thinking the same thing... I noticed nothing when I lost my front belly pan, until I changed the oil lol... I think Iím gonna work on a deck lid extension and then maybe a diffuser if I can get it done with the other projects that need attention
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Old 02-03-2018, 01:04 PM   #7 (permalink)
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decklid

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Iím thinking the same thing... I noticed nothing when I lost my front belly pan, until I changed the oil lol... I think Iím gonna work on a deck lid extension and then maybe a diffuser if I can get it done with the other projects that need attention
You might consider GOOGLING a 'blueprint' of the Ion,then place it under the Template tool,available on the Aero Forum page.
This could help with sizing of the decklid extension.
The Ford 999,Chevy Ecotec,and VW Jetta hybrid land speed record cars,all used this sort of elongation.
Extending the C-pillars to the end of the decklid,as flying-buttresses would also help.It does create a blind-spot on the passenger side,but you can overcome this with judicious use of the side mirror.
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Old 02-03-2018, 02:20 PM   #8 (permalink)
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You gave me a great piece of insight here... I hadnít thought, but there was an Ion Redline that was campaigned as a land speed car, using a turbocharged LSJ to hit like 212 MPH...

https://www.wallpaperup.com/118323/2..._tuning_f.html

While I imagine that design of decklid extension is effective, itís huge... I was initially planning 4Ē or so which I donít think would require use of anything beyond a sturdy plastic(not necessarily coroplast)...
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Old 02-03-2018, 03:53 PM   #9 (permalink)
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huge

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You gave me a great piece of insight here... I hadnít thought, but there was an Ion Redline that was campaigned as a land speed car, using a turbocharged LSJ to hit like 212 MPH...

https://www.wallpaperup.com/118323/2..._tuning_f.html

While I imagine that design of decklid extension is effective, itís huge... I was initially planning 4Ē or so which I donít think would require use of anything beyond a sturdy plastic(not necessarily coroplast)...
Granted,it's out there! The thing is,that there's a length at which the end of the body approximates where the non-mutilated body would intersect the ideal pathway profile,whatever that may be.
The LSR Saturn may reflect that length.Don't know.Only a template comparison will illustrate something that's basically optimized.
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Old 02-03-2018, 05:45 PM   #10 (permalink)
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Given that Iím browsing this with an iPhone and not a laptop Iím not sure how well I could photoshop a side view Ion sedan over the template to see how much lip I would need... I do see where youíre at though... would it be a case of ďsome better than noneĒ or ďall or nothingĒ?

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