Uberoo Posted May 29, 2006 Share Posted May 29, 2006 I had a protractor but I broke it.I left it in my backpack for a bit to long.its in numerous pieces. found a long straight piece of plywood and a protractor.I got 30* appoach and 25* departure.Those are really kind of guess's as the plywood was 3/4" thick. so it was a little har to get to point where degree is.then the protracto had 1/4" of plastic before the measuring line.btw how do you remove those "bumper protectors"? they must be stealling a good 3* from each end. Link to comment Share on other sites More sharing options...
superu Posted May 29, 2006 Share Posted May 29, 2006 too much work...too much.. outsideness Too much outsidedness? Are you serious?!! Does it make you shrivel up and wince with pain? I'll get a better profile pic and try to do the real measurements with a board in a couple weeks.. I've actualy been curious what the approach angle is now, thanks for starting this by the way, Andy...... Link to comment Share on other sites More sharing options...
superu Posted May 29, 2006 Share Posted May 29, 2006 Looks pretty good! Tip: to get a more accurate representation, you need to get the camera really far away, and then use a telephoto lense. This will make the viewing angles more accurate to reduce error. A shot from infinity (kinda hard to do!) will make the tires on each side line up perfectly, and the ground appear as a plane parallel to your camera sight. ditto... Link to comment Share on other sites More sharing options...
strat Posted May 29, 2006 Share Posted May 29, 2006 you shouldn't even need a protractor... measure your height at the bumper/rad support/etc, measure the distance from the tire to the previous measurement point across the ground. you'd have two sides of a triangle and at least one angle (90 from ground plane to vertical plane. with geometry you should be able to figure out the angles. (i've been out of highschool too long to give you the formula you'd need to figure out the angles although i'm sure you could find it online) Link to comment Share on other sites More sharing options...
Uberoo Posted May 29, 2006 Share Posted May 29, 2006 I think that be law of cosine. I lost my tapemeasure. Link to comment Share on other sites More sharing options...
Andyjo Posted May 29, 2006 Author Share Posted May 29, 2006 how about arctan(height/distfromtire) ? Link to comment Share on other sites More sharing options...
Caboobaroo Posted May 29, 2006 Share Posted May 29, 2006 gotta get into the math people. Its all about the trigenometry or however its spelled. I can do this in my head:D My english on the other hand sucks! Link to comment Share on other sites More sharing options...
soobmater Posted May 29, 2006 Share Posted May 29, 2006 you shouldn't even need a protractor... measure your height at the bumper/rad support/etc, measure the distance from the tire to the previous measurement point across the ground. you'd have two sides of a triangle and at least one angle (90 from ground plane to vertical plane. with geometry you should be able to figure out the angles. (i've been out of highschool too long to give you the formula you'd need to figure out the angles although i'm sure you could find it online) I'll have to get some pics of mine, im curious to see my my aproach angle is Link to comment Share on other sites More sharing options...
LosDiosDeVerde86 Posted May 30, 2006 Share Posted May 30, 2006 I'll have to get some pics of mine, im curious to see my my aproach angle is based on your avatar picture, i'd say between 40 and 45 Link to comment Share on other sites More sharing options...
Caboobaroo Posted May 30, 2006 Share Posted May 30, 2006 I think mines gonna be like 10 degrees on my RX... maybe less since I'm getting coilovers and I have a front airdam:lol: Link to comment Share on other sites More sharing options...
Sweet82 Posted May 31, 2006 Share Posted May 31, 2006 I think until you do the "Plywood Test" you really can't get an accurate measurement. Too many deceptive camara angles and parts that are lower in the center of the vehicle. Link to comment Share on other sites More sharing options...
BruceyWV Posted May 31, 2006 Share Posted May 31, 2006 So when do we start talking about all the other fun stuff? RTI, departure, breakover, and off camber goodness? I know mines still stock but that doesent mean I cant just scrape the plastic bumper off first Link to comment Share on other sites More sharing options...
scrap487 Posted May 31, 2006 Share Posted May 31, 2006 So when do we start talking about all the other fun stuff? RTI, departure, breakover, and off camber goodness? I know mines still stock but that doesent mean I cant just scrape the plastic bumper off first you'll find the radiator support gets in the way real fast Link to comment Share on other sites More sharing options...
Uberoo Posted May 31, 2006 Share Posted May 31, 2006 so what is the RTI for a subi? 150?200? Link to comment Share on other sites More sharing options...
LosDiosDeVerde86 Posted May 31, 2006 Share Posted May 31, 2006 so what is the RTI for a subi? 150?200? more importantly....what's RTI Link to comment Share on other sites More sharing options...
Scott in Bellingham Posted May 31, 2006 Share Posted May 31, 2006 more importantly....what's RTI RTI= Ramp Travel Index Link to comment Share on other sites More sharing options...
MountainBiker Posted May 31, 2006 Share Posted May 31, 2006 My 2002 Forester got the following scores on a homemade 20 degree ramp, with the tires at 36psi: Stock = 397 Anti Sway Bar end links Disco'd = 458 http://www.subaruforester.org/vbulletin/forums/showthread.php?t=2832 Link to comment Share on other sites More sharing options...
monstaru Posted May 31, 2006 Share Posted May 31, 2006 back to approach angles.the brat is right at 38 degrees.with the bumper on it right now,i am losing about 10 degrees. 4 inch lift in front with 26 inch tires. when i am done with the new bumper it will be approaching 50 deg.that is without the core support cut out. Link to comment Share on other sites More sharing options...
Turbone Posted June 1, 2006 Share Posted June 1, 2006 Ok, you've all probably been waiting for me to show mine:rolleyes: But someone else has to do the math, I dont have CAD (or math skills, for that matter) Link to comment Share on other sites More sharing options...
heep70 Posted June 1, 2006 Share Posted June 1, 2006 Come on, give it a shot. I don't see no winch. Link to comment Share on other sites More sharing options...
88HatchMonster Posted June 1, 2006 Share Posted June 1, 2006 Ok, you've all probably been waiting for me to show mine:rolleyes: But someone else has to do the math, I dont have CAD (or math skills, for that matter) Look at all that room! Me thinks you need bigger tires on that hatch! Anyway, looks like about 45.6 deg. with the push-bar and 49 deg. to the bumper. Perspective is likely throwing everything off though. Link to comment Share on other sites More sharing options...
LosDiosDeVerde86 Posted June 1, 2006 Share Posted June 1, 2006 you'd gain a degree or two is you got rid of the pusher Link to comment Share on other sites More sharing options...
Turbone Posted June 1, 2006 Share Posted June 1, 2006 That pusher is going to have a Warn 6000 mounted to it shortly. Cant sacrifice just a degree or 2 for that. Link to comment Share on other sites More sharing options...
LosDiosDeVerde86 Posted June 1, 2006 Share Posted June 1, 2006 That pusher is going to have a Warn 6000 mounted to it shortly. Cant sacrifice just a degree or 2 for that. hell, i wouldnt either Link to comment Share on other sites More sharing options...
SOOBOUTLAW Posted June 2, 2006 Share Posted June 2, 2006 If I don't have the clearance, I just give more right foot and clear it.(or get hung up) Link to comment Share on other sites More sharing options...
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