Awd suspension basic help

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michrulejj

michrulejj

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michrulejj
I would like to know some pointers on how to set up suspension on awd car. Not just specific numbers but what does everything do and change. I read the guides to drag racing and still don't completely understand what everything actually does. If I duplicated a thread could you please redirect me there. I couldn't really find one. Thanks.

BTW should this be under tuning? Didn't know because it was about dragging at indy.
 
Low front, High rear
Stiff front, stiff rear
with the spring rate being stiff dampers will have little effect.
roll bars dont matter
no toe no camber

With an awd car you have a lot of launch at your disposal compared to a rwd car. Utilize your launch abilities. You dont want the front end coming up too much because the front wheels are being used. Since both axels are being used you dont want too much weight transfer, that is why a stiff suspension is best.
 
r4a2g0
Low front, High rear
Stiff front, stiff rear
with the spring rate being stiff dampers will have little effect.
roll bars dont matter
no toe no camber

With an awd car you have a lot of launch at your disposal compared to a rwd car. Utilize your launch abilities. You dont want the front end coming up too much because the front wheels are being used. Since both axels are being used you dont want too much weight transfer, that is why a stiff suspension is best.
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Okay thanks for help.
 
r4a2g0
Low front, High rear
Stiff front, stiff rear
with the spring rate being stiff dampers will have little effect.
roll bars dont matter
no toe no camber

With an awd car you have a lot of launch at your disposal compared to a rwd car. Utilize your launch abilities. You dont want the front end coming up too much because the front wheels are being used. Since both axels are being used you dont want too much weight transfer, that is why a stiff suspension is best.
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turning the spring rate up/to the right actually makes the spring rate higher which makes the springs softer not stiffer.But yeah i usually use

RH
max/max

SR
min/min

DAMP
min/min
max?min

the rest doesnt matter
 
It increases the length it extends. Compression is left to the dampers
 
It increase overall length I believe were as the dampers actually allow it to happen and regulate it
 
Slashfan
It increases the length it extends. Compression is left to the dampers
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No
Slashfan
It increase overall length I believe were as the dampers actually allow it to happen and regulate it
Click to expand...
It's actually the opposite. The stiffer the spring, the shorter must it be if ride height doesn't change and you're not changing the suspension geometry (position of the strut).
greedygenius
then why is there a setting on dampers for compression and extension if spring rate increases the extension?
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Dampers only damp it -> control/limit the speed of how fast the spring gets compressed or extends. They don't limit the travel of the strut.
greedygenius
so it doesnt make them more stiff or soft just allows it to compress or extend more/less?
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No, it really makes it stiffer or softer.
r4a2g0
spring rate, dampers---lower the number, more it moves
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Pretty much, just always remember that dampers don't change the max compression/extension level.
ripcurl
spring rate is the amount of pressure/weight it needs to compress a certain distance
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Yes
 
^^ after reading this im going to make a few tweaks and see if i can get faster.
 
dr_slump
No

It's actually the opposite. The stiffer the spring, the shorter must it be if ride height doesn't change and you're not changing the suspension geometry (position of the strut).

Dampers only damp it -> control/limit the speed of how fast the spring gets compressed or extends. They don't limit the travel of the strut.
No, it really makes it stiffer or softer.
Pretty much, just always remember that dampers don't change the max compression/extension level.
Yes
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Yes to a certain extent but not much, maybe 1 interval. And yes, I got that mixed up. My bad lol. Thanks for clearing this up dude.
 
Slashfan
Yes to a certain extent but not much, maybe 1 interval. And yes, I got that mixed up. My bad lol. Thanks for clearing this up dude.
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Well, if you use springs which are as example 4 times stiffer (e.g from 5.0 to 20.0), then the difference is actually quite big.
 
dr_slump
Well, if you use springs which are as example 4 times stiffer (e.g from 5.0 to 20.0), then the difference is actually quite big.
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No denying that, all I'm saying is that different intervals will respond differently, and higher usually means stiffer.
 
most of the suspension help on here I see is mainly for r34, r35 and black editions. with a Audi r8 and Bugatti its completely different because of having the engine in the back.
 
ceelo
most of the suspension help on here I see is mainly for r34, r35 and black editions. with a Audi r8 and Bugatti its completely different because of having the engine in the back.
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Interesting
 
ceelo
most of the suspension help on here I see is mainly for r34, r35 and black editions. with a Audi r8 and Bugatti its completely different because of having the engine in the back.
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well yeah the setups giving are mostly for front engine awd's but being that they have explained what most of it does and how it affects the cars weight transfer you should be able to adapt it to a rear engine awd.
 
ceelo
most of the suspension help on here I see is mainly for r34, r35 and black editions. with a Audi r8 and Bugatti its completely different because of having the engine in the back.
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My Audi and if I had a bug, use the exact same suspension as my GTR. Same with all my lambos, they have mid mounted engines and use the very same suspension 👍
 
ceelo
Scarcasim? if so ive tried awd tunes for like engine in the front but its just feels sloppy
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well then take a suspension tune for a r35 and then play with it until you find something that lowers 0-60,0-100, or ET on your R8 or veyron , go thru the suspension settings doing that and then you will figure out whats different between front engine AWD and rear engine AWD drag suspension.I dont understand why people always want 100% complete full tunes? when you go online and race someone your not weather you win or lose your not doing either the person that tuned your car is how is that fun?..When i first started i read the trans tuning,drag tuning thread and went and tried to tune stuff on my own the only time id actually go and look at someone's base tune is to compare it to mine to see if theres anything i can improve on.
 
SpeedTestJimmy
My Audi and if I had a bug, use the exact same suspension as my GTR. Same with all my lambos, they have mid mounted engines and use the very same suspension 👍
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It would behoove you, not to listen to any advice ceelo gives

👍

The only 4wd car I've tuned that didnt like min/max max/max was the R35 TC
 
ceelo
Scarcasim? if so ive tried awd tunes for like engine in the front but its just feels sloppy
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I like sarcasm. If it's this what you mean....
 
Last edited:
seanneedscar
It would behoove you, not to listen to any advice ceelo gives

👍

The only 4wd car I've tuned that didnt like min/max max/max was the R35 TC[/QUOTE

You still pissed because i said your tune doesnt work for me?
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ceelo
seanneedscar
It would behoove you, not to listen to any advice ceelo gives

👍

The only 4wd car I've tuned that didnt like min/max max/max was the R35 TC[/QUOTE

You still pissed because i said your tune doesnt work for me?
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a tune is a tune and that tune will work for the specified car unless put in wrong. so i doubt he would be mad that you maybe put his tune in wrong.
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