I have been working with Koni on developing some road racing coil-overs for my ITR. I have looked at at four main factors:
- Reduction of unsprung & sprung weight.
- East of tune-ability.
- Ease of service-ability.
- Durability on the track.

This is more using vendors and parts that I have access to, taking various measurements, machining various parts to fit, and rolling with what I came with. I am no rich guy, but cost was not a factor on this project nor was the time it took for Koni to produce these...that is a whole other topic. Thus far I am very satisfied with initial product quality, customer support, ease of use, etc. But then I ultimately don't care for how they feel in my hand and how they look on the car. The car needs to be able kick some *** on the track. I will give much more detailed feedback after some testing and tuning. FYI, I do not plan on having the car up and running for 2-3 months. Here is another link to some information on the car = https://honda-tech.com/zero...age=1


Finaly in the chassis.











Enjoy, I am open to questions, comments, criticism, etc.

 

Now that's amazing...

Any price range approximation ?

What rates are you running with them ?

Nice !

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by STN_Pat &raquo;</TD></TR><TR><TD CLASS="quote">Now that's amazing...

Any price range approximation ?

What rates are you running with them ?

Nice ! </TD></TR></TABLE>

I would say price range is in the $3400-$3700 for the whole set (aluminum shocks, spherical bearing aluminum top hats, springs, rear lower sperical bearings, adjustment tool, spare springs, mounting hardware, etc.) with spherical bearings...no rubber is this suspension! I am starting w/ 650+ rates in front and 800+ rates in the rear. I will adjust the rates after some testing and tuning.

 

Now THAT it beautiful.

Nice work ... call me bright green

 

thats a very sick looking upper control arm you have there. but it looks very familar but i cant put my finger on it.

 

Those look friggin sweet.

Tell me more! Obviously Koni dampers...what kind of springs? Sway bars?

Are those the wheels you will be racing on?

I love purpose built race-cars....Sorry if I sound like a noob. I'm glad to see someone using an ITR for what it's meant for, instead of putting a big turbo on it and drag racing.

 

noice setup dude

 

there eibach's!


in one picture you can make out the distenct ebaich E.

and on the sprign rates it looks liek the first fronts are

 

Thats in front of Modern Garage right? Looks like your going to be blasting the new sports park here soon.

 

Those are some big brakes

Sweet car.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MGITR &raquo;</TD></TR><TR><TD CLASS="quote">
</TD></TR></TABLE>

Only 3 lugs?

 

Aren't you worried about the performance of those insanely thin tires?
I guess the humongous brakes make it worth it..
but still.

and the shocks LOOK really nice,
I would gladly purchase a koni full coilover over any other brand myself..

but I don't see any adjustable lower sleeve?
As in.. ride height changes = suspension stroke changes = might as well just have a standard shock and threaded spring combo

Just some thoughts,
you did ask for advice.. hehe.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">Aren't you worried about the performance of those insanely thin tires?
I guess the humongous brakes make it worth it..
but still..</TD></TR></TABLE>

most people say that thin tires like that take the vairable of air presure pretty much right out of suspension tuning equation.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">but I don't see any adjustable lower sleeve?
As in.. ride height changes = suspension stroke changes = might as well just have a standard shock and threaded spring combo.</TD></TR></TABLE>

except for the fact that these are probably have shortened bodies, and since its a race car you pretty much know your height and it doesn't really change. Almost all sactioning bodies have a limit of how low your car can be.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by green00EX &raquo;</TD></TR><TR><TD CLASS="quote">Only 3 lugs? </TD></TR></TABLE>

dont worry its not going anywhere yet.lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">but I don't see any adjustable lower sleeve?
As in.. ride height changes = suspension stroke changes = might as well just have a standard shock and threaded spring combo

Just some thoughts,
you did ask for advice.. hehe.</TD></TR></TABLE>

adjustable lower perch = honda-tech hype

I have it on my apex's. It is a good feature, but those koni's outshine my shocks in every way. Like slammed said, you really only have so much room for height adjustment anyway on an actual racecar, with minimum ride heights. If you stick to one tire/wheel size, the only time your shocks/springs are likely to be adjusted is during corner weighing.

 

 

mmmm interesting,
didn't know there would be a limit on ride height,
I knew there were limits on ground clearance, like any part of the car has
to be higher than the lowest portion of the rim, that sort of thing.

you're right, for a dedicated racer I suppose the bottom perch is not that useful..
for a streetcar it would come in oh so handy.

I believe that thin tires like that would take the tire pressure equation out..
but is that neccesarily a good thing? naturally it would be nice to have one less
thing to worry about, but I'd be worried about losing performance.

 

Do you work at modern garage? Car looks familiar

 

well if you look at the british touring cars. they have massive brakes over some pretty big wheels. the side walls are basically paper thin. those cars can drive pretty damn hard

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tWixT &raquo;</TD></TR><TR><TD CLASS="quote">Do you work at modern garage? Car looks familiar</TD></TR></TABLE>
Yes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hayabusa160 &raquo;</TD></TR><TR><TD CLASS="quote">well if you look at the british touring cars. they have massive brakes over some pretty big wheels. the side walls are basically paper thin. those cars can drive pretty damn hard </TD></TR></TABLE>

yeah was thinking about those.
from what i've read when they lose traction they are GONE
like it's insanely high limits, but once you hit that limit it breaks away real fast

 

oh man i want a set

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">

yeah was thinking about those.
from what i've read when they lose traction they are GONE
like it's insanely high limits, but once you hit that limit it breaks away real fast</TD></TR></TABLE>

the side wall being thin makes it really stiff in most race tire cases, which is good because you don't want side wall flex.

at the rate at which a tire's grip level falls off is all in the compound of the tire. Ex street tires once heated up get shitty real quick. some tires have a somther slop of grip loss, some have a really step drop off, it doesn't have to do with tire size.