RebekahsZ Posted July 11, 2014 Share Posted July 11, 2014 What effect does lowering a Z car have on drag and CD? No, I didn't search. Not at all. With coilovers, lowering is simple, and free. I have a 1/2-mile event in a couple months and am wondering if I should slam it for the event. Quote Link to comment Share on other sites More sharing options...
G-E Posted July 11, 2014 Share Posted July 11, 2014 It will of course, it completely changes undercar aero, and depending how bad that was, it could effectively produce a smaller frontal area for the purposes of drag Quote Link to comment Share on other sites More sharing options...
johnc Posted July 11, 2014 Share Posted July 11, 2014 Adding rake will increase down force (or reduce lift). How much and how much is enough and how much is too much? I don't know. Quote Link to comment Share on other sites More sharing options...
gnosez Posted July 11, 2014 Share Posted July 11, 2014 I suspect Andy Flagg, Tony D and Burton Brown would know.... Quote Link to comment Share on other sites More sharing options...
JMortensen Posted July 11, 2014 Share Posted July 11, 2014 Should be all good until you start hitting the bump stops. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted July 12, 2014 Author Share Posted July 12, 2014 Or the oil pan! Quote Link to comment Share on other sites More sharing options...
260DET Posted July 18, 2014 Share Posted July 18, 2014 Going in a straight line then drop it down with some rake as John suggested. Quote Link to comment Share on other sites More sharing options...
Tony D Posted August 14, 2014 Share Posted August 14, 2014 Oil pan should be above crossmember. If not...shame on you! Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted August 15, 2014 Author Share Posted August 15, 2014 It is what it is. Quote Link to comment Share on other sites More sharing options...
Mikelly Posted October 19, 2014 Share Posted October 19, 2014 Drysump, Baby... It is what it is. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted October 19, 2014 Author Share Posted October 19, 2014 OK, ok, I'm a worm for having my terrible F-body oilpan hanging down like a pair of balls from a reciever hitch..... I'm already spending over $100,000 Alabama dollars this year on this pool/garage project for the soul purpose of getting the Z out of my wife's garage, which of course is attached to my wife's house. So I guess another $5000 on the Z is equally as justified. But the drysump will have to wait until after I install a couple of lifts-this working on the ground is for the young kids. After hours energy is the rate limiting factor. How do some guys have energy for a drinkin' and womanizin'? Quote Link to comment Share on other sites More sharing options...
JMortensen Posted October 19, 2014 Share Posted October 19, 2014 Could always just get a Kevko pan. $500ish. Quote Link to comment Share on other sites More sharing options...
duragg Posted October 21, 2014 Share Posted October 21, 2014 My stupid Arizona Zcar pan hangs below the cross member. Dangerously close to the track in my opinion. Meh... Its taken a few hits already. Lowering also moves weight around, no? I vote for slam. Count your rotations and you can go right back to where you were. Quote Link to comment Share on other sites More sharing options...
johnc Posted October 21, 2014 Share Posted October 21, 2014 Most S30 folks run their cars too low for best handling. As you lower the car you must increase spring rate and increase shock damping. Quote Link to comment Share on other sites More sharing options...
Tony D Posted October 25, 2014 Share Posted October 25, 2014 Mmmmm stiffness... Quote Link to comment Share on other sites More sharing options...
gira Posted October 27, 2014 Share Posted October 27, 2014 I run the AZC oil pan on an IT car. For safety, I welded a steel angle on the cross member just in front of the oil pan hanging down. It was just about four inches long and I believe it was 1" angle just turned up like a "V". It will sacrifice itself before the oil pan. Greg Ira Quote Link to comment Share on other sites More sharing options...
Nelsonian Posted October 27, 2014 Share Posted October 27, 2014 ^^^ I like this idea and will follow when the time comes to reassemble the car. I have the AZC oil pan as well. Quote Link to comment Share on other sites More sharing options...
aongch Posted November 10, 2014 Share Posted November 10, 2014 Most S30 folks run their cars too low for best handling. As you lower the car you must increase spring rate and increase shock damping. This is true, I'm wondering if my Eibach 250 lbs, at all corners on the EMI coilovers will be enough to keep a lower ride height (slight rake) or need to raise it a bit. Will be testing my project soon at ACS and next yr Buttonwillow, WSIR. It's damped by Tokico Illuminas. Quote Link to comment Share on other sites More sharing options...
aongch Posted December 23, 2014 Share Posted December 23, 2014 I'm starting at 1/2 inch lower front (rake) with the MSA dam and BRE rear spoiler. We'll see how this works out, if I need more wing and/or splitter. ACS will be a nice track to test aero/downforce (145+ front straight in M3). Report back soon..... Quote Link to comment Share on other sites More sharing options...
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