- 4,803
- Dearborn, MI
- MotorCtyHamilton
praiano - I thought you were done with this thread? Just couldn't stay away, could you?
praiano - I thought you were done with this thread? Just couldn't stay away, could you?
Glad it works for you and you enjoy it - many thanks for mentioning it 👍
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Works for me too.. pretty good (actually great) starting point.
I even went the long way and figured out, using math and a vehicle with known motio ratio/wheel rate, spring rates for a race style suspension frequency (I thnk I used 2.5CPS) and came up with values that were within .1 kg/mm of your 'shortcut' method. 👍
Highlandor's tuning theories/setups work very well, we should all be thankful and respectful of what correct information has done to help us in tuning our cars for the better. All credit should go to him in my belief as he has brung us forward from all the debating and actually came with results as it were... And Highlandor's race series is particularly good.
yes
yes
yes
praiano - I thought you were done with this thread? Just couldn't stay away, could you?
Drag racers running a high rear, low front ride height matches with real world setups quite well. You don't notice it as much on modern drag cars but they still run a somewhat higher rear end than front.From what I've seen, ride height is the only part truly "backwards". It's worth noting that it's backwards in not just corners but in a straight line as well; the drag guys go tail-up, nose-down for strongest launch when it should be the reverse.
The other bits do what they say on the tin, though FWD suspension can get a bit funny.
All Sus settings are back to normal and that's a fact!!
Go to your garage and select your car now go settings and put front low(max) and rear high (max) then come out where your car spins round and see for yourself!! You can clearly see the front is down and rear is high!!
Go to your garage and select your car now go settings and put front low(max) and rear high (max) then come out where your car spins round and see for yourself!! You can clearly see the front is down and rear is high!!
Drag racers running a high rear, low front ride height matches with real world setups quite well. You don't notice it as much on modern drag cars but they still run a somewhat higher rear end than front.
Back in the late '60s to early '80s the so called "Highjacker" look was very popular amongst hot rodders. This wasn't just a fashion statement but a reflection of the pro street drag cars of that time. The high rear end allowed for the rearward weight transfer and gave room for the car to "squat" under the hard acceleration of a launch, helping to plant the rear end and somewhat reducing wheel spin. Better tire compounds and improvements in suspension technology and geometry mean the modern drag cars don't use as extreme looking a setup but they still have a higher rear end with much greater suspension travel.
while the inverse (in comparison) hurts top-end but gives a ton of hook.
Didn't you say something about the damper extension?From what I've seen, ride height is the only part truly "backwards". It's worth noting that it's backwards in not just corners but in a straight line as well; the drag guys go tail-up, nose-down for strongest launch when it should be the reverse.
The other bits do what they say on the tin, though FWD suspension can get a bit funny.
Could someone post a link to this write up. I searched but can't seem to find it. Thanks and much appreciated.Ha ha...the dreaded reversed ride height debate..I thought it was dead and buried but...lol..
In short, I agree with the statement that the visual effects of ride height are correct, but the effect on the handling of the car is reversed compared to real life. The bigger question is how to use this effect, if at all, in tuning a car.
For me, it is the very last thing I use to tune. I'd say probably 80% of the cars in my garage have equal ride heights. A few months back Highlandor had a discussion about bascic tuning set up. That is the exact same method I've been using for months but I'll refer to it as the "Highlandor Method"...lol. Perhaps Highlandor recalls the thread and can post a link, I don't have it.
The Highlandor Method, which concurs with the way you'd set up a suspension in real life, basically asserts that you begin tuning a car by setting up the springs, dampers and ARB's relative to the weight distribution of the particular car and each other. In very brief, if a car is 60/40 you'd set the front springs at 60% of their max and the rears at 40%, dampers on the same relative scale, and ARB's in reverse relation to this. If you do this when setting up a car, most of the time you'll find it's well balanced or fairly close to being so. Then use the toe, camber, LSD etc. to fine tune the cars behaviour to suit your driving style. You can also adjust the springs/shocks/ARB to achieve more grip, more suspension travel etc. but do so while maintaining the relative balance between the elements.
You should find that about 80% of cars are very balanced with this basic set up. Cars that don't respond as well to it for me are cars with extreme weights and extreme weight distributions and tuner cars. You should also find that most of the extreme cars can be well tuned by adjusting the springs/shocks/ARB's in small increments, and the LSD/toe/camber to arrive at a balanced, fast, ride.
For me, the other 20% require more extreme suspension settings and/or need ride height adjustments to achieve balance. I would never start with ride height as an adjustment, always end with it, as a kind of last resort, because even a car that is set up to be balanced but requires ride height adjustment to make it so, will handle better relative to using ride height to begin with for tuning, if that makes any sense.
Could someone post a link to this write up. I searched but can't seem to find it. Thanks and much appreciated.
Could someone post a link to this write up. I searched but can't seem to find it. Thanks and much appreciated.
Definitely rear-high.
If I had the link KB, I would have posted it on your Nascar Thread, but I didn't have it, couldn't remember the name of the thread, so I wrote that little synopsis of it in my response to you. Highlandor will email it to you and yes, that was the starting point for my Nascar Tune and if you use it for yours, you'll be successful. If you compare the settings that are generated by this method to yours, I think it'll become obvious why I did the review I did because to me that car just did not seem balanced.
Has Yamauchi ever said anything about suspension being backwards?
Has Yamauchi ever said anything about suspension being backwards?
Has Yamauchi ever said anything about suspension being backwards?
His lack of response is surely proof that the settings are correct. 👍
He's far too busy polishing his car collection, driving his R35gtr racecar around the ring or shoving his nose up Nissan's ass to have time to sort out or comment about the problems with GT5......
And I see that you are far too busy being jealous...