Suspension Theory/Chat Thread

[eugenekim.net]

Originally Posted by Moose

YUP - pretty good for an off-shorre company ... the designer actually took the time to design / build a decent setup with good performance ... they offer various off-the shelf spring rates that are aggressive and track oriented ...

NOT for FG's though

picperformance.com Redirect

FYI - He participated in the Shock Dyno free for all on HT


Moose

how did the shock dyno on ht come out? also, i spoke to someone on ht a few weeks ago and he said he is a vendor for pic performance and has the coilovers for the fg2...

how do u feel these are compared to the pro-c's?

[Moose]

Originally Posted by eugenekim.net

how did the shock dyno on ht come out? also, i spoke to someone on ht a few weeks ago and he said he is a vendor for pic performance and has the coilovers for the fg2...

how do u feel these are compared to the pro-c's?

The dyno looked good ... What impressed me as well was how he was going about designing / buildiing / tweeking his coil-overs to get it right ... if you follow the HT thread you will see what I mean.

The Dynos are posted on his site under "Information/shock dyno .... for EH/EK/Teg / WRX ...
I have direct linked to it here

http://picperformance.com/dyno.pdf



I was not aware that he has a FG/FD application ...the web-site does not talk about it.

Not having used or seen his fd/fg SETUP I cannot comment on it ... BUT if it is up to the same standards as his EG/TEG coil-overs we may have another good option for the more track oriented enthusiast

Moose

[eugenekim.net]

Originally Posted by Moose

The dyno looked good ... What impressed me as well was how he was going about designing / buildiing / tweeking his coil-overs to get it right ... if you follow the HT thread you will see what I mean.

The Dynos are posted on his site under "Information/shock dyno .... for EH/EK/Teg / WRX ...
I have direct linked to it here

http://picperformance.com/dyno.pdf



I was not aware that he has a FG/FD application ...the web-site does not talk about it.

Not having used or seen his fd/fg SETUP I cannot comment on it ... BUT if it is up to the same standards as his EG/TEG coil-overs we may have another good option for the more track oriented enthusiast

Moose

exactly what i wanted to hear... thank you

[Zaret]

Deleted.

[gjslutz]

I have an 08 EX Sedan with soft rear springs. Is there a air shock that will fit
the 08 EX Sedan? With 2 normal people in the rear there isn't enough spring rate.

[Sirbelch]

What's an air shock? Do you mean air bags that replace the spring? Or a shock with gas in it? (I'm sure they all come with gas now)

[JDMReddy]

... air shocks... like from back in the 70's? the ones with the tube that run to the back bumper to boost them up.... hmmm idk

i noticed all the 8thgen civics coming back from the beach were dumpy in the rear... theyré all soft unless you go aftermarket...

and when you say springrate do you mean preload?? or am i thinking of occcupied sag

like on race bikes...

[Sirbelch]

Spring rate and preload are to very different things.

Spring rate - The amount of force required to compress the spring. Ex 500 lbs/in - It takes 500 lbs of force to move the spring 1 inch.

Pre-load - Pre compressing the spring when its on the car in order to change droop travel.

[JDMReddy]

Originally Posted by Sirbelch

Spring rate and preload are to very different things.

Spring rate - The amount of force required to compress the spring. Ex 500 lbs/in - It takes 500 lbs of force to move the spring 1 inch.

Pre-load - Pre compressing the spring when its on the car in order to change droop travel.

... yea you cannot change the preload unless you have coilovers correct???

which in turn changes ride height...

correct??...

[meeks]

great info.

[Highrev1]

Originally Posted by JDMReddy

... yea you cannot change the preload unless you have coilovers correct???

which in turn changes ride height...

correct??...

Pre-load, NO such thing...

"Think about it for a moment. Springs as we all know are rated in LB/IN (KG/cm) meaning a given spring will compress X"'s per LBS applied to that spring. simple right? so.... Have you altered how much weight is being applied to that spring by altering the height of it? if not then how can the spring compress any more or less at any ride height along the collars adjustment range? Remember, the upper hat is attached to the dampers pistion (which is a moving part), so when you raise or lower the spring perch (not the bottom perch) you end up changing the dampers stroke range rather then compressing the spring(unless you completly top out the damper). IN reality, the only thing you've done by adjusting the lower collar is adjust the shocks stroke range, something that can also be done by shortening the damper." A ZZ quote

Now there is a way to arrange the weight of the car around its suspension to make it equal to all corners and thats corner weighting the car. But in that instance the weight of the car is shifted onto the spring to compress it.

Understanding Corner Weights

A HELPER SPRING

Now a helper spring is somthing complety different, and the N+ don't have them so this is just for my own good feeling to try to educate the forum. All that is a flat spring that takes up room so the springs don't have slop in them when they are not under load. These helpers compress completly flat basically they are there to keep thing nice and tight, keep noises down too, as you can read from the article TUV requires them.

Helper Springs

[JDMReddy]

.... hmmm i guess i deal with motocross suspension way too much lmao...

i can never seem to find a perfect balance of the suspension on the bike,

there are too many variables

spring rate
various rates of valving
dampening
compression
rebound
oil wheight
preload
loaded sag
...ect
ect...


so to simplify the fg

is there a package coilover set that seems to be all-around good with decent ride comfort...?

i thought
skank2 2 way adj. coilovers
or
tein 2 way adj. coilovers

or should i just go height adj only?

is it worth the money to be able to adj. dampening?

[Highrev1]

Yes Bikes are different in that you can change the loads on the springs... Used to ride a duck...

[cincy94max]

I don't have any problems rubbing on my daily drive with 225/40-18's mounted on 18x7" wheels with a +45mm offset at stock height on my Si. I bought a used set of 17x7.5" Kosei K1 wheels with a +45mm offset and mounted 225/45-17 Azenis for auto-x. The Azenis are not the tire of choice anymore and I am considering mounting some 235 or even 245 series Direzzas on the Kosei's. Will a 5mm or 10mm wheel spacer be enough to avoid any rubbing? People seem to be having success with 235/40-17's and would keep me in VTEC better than the 235/45-17's. 245's provide a larger cross section, but at the limit of camber, weight of the tire, and the weight of the wheel spacer if I need one.

I am at stock height right now and after reading all 20 pages of this thread I can say that I would get Koni yellows and either the Eibach ProKit or Progressive springs. The RedShift Motorsports coilovers aren't really necessary for my purposes. How will this affect rubbing with the Direzzas?

The car is being prepped for STX, so I might have 245s only in the front.

[CanyonDriver]

Originally Posted by cincy94max

I don't have any problems rubbing on my daily drive with 225/40-18's mounted on 18x7" wheels with a +45mm offset at stock height on my Si. I bought a used set of 17x7.5" Kosei K1 wheels with a +45mm offset and mounted 225/45-17 Azenis for auto-x. The Azenis are not the tire of choice anymore and I am considering mounting some 235 or even 245 series Direzzas on the Kosei's. Will a 5mm or 10mm wheel spacer be enough to avoid any rubbing? People seem to be having success with 235/40-17's, but 235/45-17's would help me slightly with gearing so I wouldn't have to shift into third as often. Additionaly 245's provide a larger cross section.

I am at stock height right now and after reading all 20 pages of this thread I can say that I would get Koni yellows and either the Eibach ProKit or Progressive springs. The RedShift Motorsports coilovers aren't really necessary for my purposes. How will this affect rubbing with the Direzzas?

The car is being prepped for STX, so I might have 245s only in the front.

i don't think you will be able to use 245's without rolling your fenders. Also I use Direzza DZ101's on my si, and i will say they have great grip and dont get greasy like other tires in its class do, but they do have somewhat flimsy sidewalls so run them at least at 36 psi warm.

[mnw615]

Please help with this recipe. HFP suspension on my LX sedan already installed. I'd like to put in 17x8 +35 enkei RPF1 with 225 45 17 tires. From what I've read, most people do a 215 45 for an 8" wheel, or a 225 40. I think I'd rather have the 45 sidewall, but I'm pretty sure I'll rub with a 45 sidewall. What if I put 1.5 degrees camber in front and adjust the back to about 1 degree? Or, someone just tell me what tire size to run with that drop, wheel, and camber. LOL All I plan on doing is suspension and wheels, so I really want to get this right. Any help would be much appreciated.

[CanyonDriver]

Originally Posted by mnw615

Please help with this recipe. HFP suspension on my LX sedan already installed. I'd like to put in 17x8 +35 enkei RPF1 with 225 45 17 tires. From what I've read, most people do a 215 45 for an 8" wheel, or a 225 40. I think I'd rather have the 45 sidewall, but I'm pretty sure I'll rub with a 45 sidewall. What if I put 1.5 degrees camber in front and adjust the back to about 1 degree? Or, someone just tell me what tire size to run with that drop, wheel, and camber. LOL All I plan on doing is suspension and wheels, so I really want to get this right. Any help would be much appreciated.

u'll be fine with a 45 sidewall with -1.5 degrees camber front and -1 degree rear

[Sirbelch]

Originally Posted by mnw615

Please help with this recipe. HFP suspension on my LX sedan already installed. I'd like to put in 17x8 +35 enkei RPF1 with 225 45 17 tires. From what I've read, most people do a 215 45 for an 8" wheel, or a 225 40. I think I'd rather have the 45 sidewall, but I'm pretty sure I'll rub with a 45 sidewall. What if I put 1.5 degrees camber in front and adjust the back to about 1 degree? Or, someone just tell me what tire size to run with that drop, wheel, and camber. LOL All I plan on doing is suspension and wheels, so I really want to get this right. Any help would be much appreciated.

I run 235/40/17 on a 17x8 +45 with no issues.

[mnw615]

Originally Posted by CanyonDriver

u'll be fine with a 45 sidewall with -1.5 degrees camber front and -1 degree rear

Thanks, I hope you're right

Originally Posted by Sirbelch

I run 235/40/17 on a 17x8 +45 with no issues.

Are you lowered on HFP? Do the front or rear tires seem close to the springs or fenders?

[CanyonDriver]

Originally Posted by mnw615

Thanks, I hope you're right



Are you lowered on HFP? Do the front or rear tires seem close to the springs or fenders?

he's lowered a lot more than HFP on Tein Flex