I am considering a coilover setup that is similar to the Type R. From what I have been told, the suspension is more front weighted. I would appreciate input from those that have driven the Type R suspension on the track. How does understeer/oversteer compare to stock?
Does Type R suspension understeer?
- Thread starter mvanbuhl
- Start date
No experience with the suspension in question but purely by the numbers, the Type R suspension would understeer alot more because they put the heavier springs infront instead of back. The non type R oem suspension has the heavier springs in the back (excluding zanardi).
http://www.daliracing.com/v666-5/catalog/suspension/more_springs_matrix.cfm
http://www.daliracing.com/v666-5/catalog/suspension/more_springs_matrix.cfm
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- 11 July 2004
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IIRC the reason this is done is because the NSX-R also had chassis stiffening bars that compensate that for more neutral handling.
Huh? Stiffer front would result in even more understeer.
- Joined
- 11 July 2004
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Maybe I'm wrong, but I thought it makes a difference where the stiffness is... Chassis vs Suspension. And because the NSX-R Stabilizer Bars keep the front "stiffer" it doesn't plow or roll as much under braking, etc. In essence I have alot more bite on the street by simply adding those NSX-R Stabilizer Bars... far more bite then I'd need for street.
Stabilizer/sway bars do not do anything under straight-line braking...
'bite' is a vague term. do you mean turn-in responsivness/grip or peak grip, etc...?
It depends on the tires and the sizes that you run. I get more understeer with my street setup 215/255 Goodyear F1 GS D3. But when I run 235/275 Toyo RA1, the car felt very neutral.
I have all NSX R chasis reinforcement, with stock 93 rear sway.
I have all NSX R chasis reinforcement, with stock 93 rear sway.
Try a little more camber in the front to get rid of that understeer with the 215s. Tire wear will be a slight sacrifice.
The Type R suspension is one of the most phenomenal non coilover setup I have ever driven. On smooth roads and a high speed environment, it shines like no other. I think for the street it is hard. But everywhere else, a neutral handler. I went to the Comptech Pro suspension only to have the adjustability. I still have the Type R suspension for this reason.
mystican and docjon - it seems like you are the only replies that have the Type R suspension, thank you for your feedback!
At this point, I cannot afford the Type R suspension. I am considering the JIC suspension which comes in a couple of different options:
1) A front weighted setup that has similar weightings as the Type R
2) A setup similar to stock weightings
Did you notice a big difference (in understeer) vs. stock when you switched?
Do you have opinions on which weighting I should consider for HPDE (group 3/4) driving?
Thanks to all for your input!
At this point, I cannot afford the Type R suspension. I am considering the JIC suspension which comes in a couple of different options:
1) A front weighted setup that has similar weightings as the Type R
2) A setup similar to stock weightings
Did you notice a big difference (in understeer) vs. stock when you switched?
Do you have opinions on which weighting I should consider for HPDE (group 3/4) driving?
Thanks to all for your input!
Never had experience with the JIC.
If you do go with JIC and found it to be understeer on track, you can
1)play with tire pressure
2)play with the shock adjustment
3)change swaybar setting
4)try different type of tires next time
5)try different alignment next time
Sometimes driving style makes a difference too, I usually get more understeer sensation than my cousin NSXdreamer2 in the same car. (yea i'm slow)
I think you should consider how much spring weight you can live with for daily driving.
I have NA2 Type-R suspension on my 91 with a Type-R front sway bar & chassis strenghtening bars. I do not race or track but in street driving the setup feels more neutral compared to stock 91 suspension. At highway speeds, the response is linear & wonderful. However personally it felt bouncey for me on anything other than smooth roads so I replaced my 17/17 Advans & stiff OE Bridgestones with OE wheels & Azenis RT-615 tires (higher sidewalls helped a lot). I also prefer that I do not have to adjust anything, as with an adjustable coilover/s.
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Ok what I'm saying is that compared to stock there is less understeer with the r na2 version.If I was going with a coilover setup I would certainly want the front spring rates to be higher than the rears.I have driven a coilover setup were the rates were equal front to rear and it was pretty neutral as well but we ran the front shocks very stiff and the rear very soft so as to reduce oversteer.I have heard that setups were the rears are say 12 or 14 and the fronts are 8-10 the cars are too loose ie oversteer.
I have a type R suspension with type R chassis bars and I can say that it depends on the speed your going, if your moving slowly it mildly understeers, driving at medium speed it acts pretty neutral to light understeer and during high speed turns it acts differently under braking (understeers) ,light throttle application(neutral), maximum throttle application (neutral to slight oversteer). Its all a matter of how you drive the car and compared to stock you understeer less.
I'm running titaniumdave's spec which already has alot camber. so I guess I'm just too slow. haha :frown:
From my first-hand experience comparing the '02 NSX-R suspension with my new setup, you need to chat with Jon Martin (800-704-2756) about his JRZ adjustable suspension. It is more comfortable than my 2002 OE NSX in regular street driving, but automatically adjusts for aggressive driving. Thus, the nose doesn't dive under braking, the car is FLAT through turns, etc. His JRZ setup on my NSX-R clone is one of those rare times when you get what you pay for. And the Falken Azenis he installed are the cheapest and stickiest tires I've ever had on an NSX in 16 years of ownership.
I couldn't imagine JRZ and the word "cheapest" in the same thread. 
I wiped my eyes then I saw the Azenis.
I wiped my eyes then I saw the Azenis.
Big difference between just have Type R suspension and Type R suspension/braces/sway bars.
Slight anti roll bar changes... or sway bar as you call it... can go from lethal to perfect with only slight changes.
Slight anti roll bar changes... or sway bar as you call it... can go from lethal to perfect with only slight changes.
You can try differnt suspension setups and maybe get it right but most likely not.
Talk to Shad at Driving Ambitions. http://www.drivingambition.us/
You live in the bay area. He is in Sacramento.
It really depends on what you want and what will make you happy.
My suspension is Wonderfull on the track but some would consider it not streetable.
What tire are you running, camber, Is this a street car or track only car etc... Talk to Shad.
Later,
Don
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