Board Logo

Coil over conversions?
Cam - April 23rd, 2008 at 09:27 AM

Hey everyone,

I've been looking at front end coil over conversion kits like this one: http://www.red9design.co.uk/type3.htm  and Remelle's kit.

I think the obvious advantages would be found the ease of adjustment offered by coil over shocks. The downsides? Well, expense is the obvious - but then again the price of a professionally built adjustable beam mated with good quality shocks and so on would be comparative - and strength/longevity is the other relative unknown...

Anyone have any thoughts?

Cheers,
Cam


Special Air Service - April 23rd, 2008 at 06:01 PM

Cam,

One thing I can see with this set-up is that the lower shock absorber bolt bears all the load/wieght/stress that goes through the front suspension. I really like the idea of the adjustability & coil spring, I have spent a bit of time thinking about getting this set-up myself.

Cheers
Brendan


mactaylor - April 23rd, 2008 at 07:08 PM

yeah cam thats the shit tas supervee we need your input right here!!!!!


Special Air Service - April 23rd, 2008 at 07:59 PM

What about this!!!!!!

http://www.eyeball-engineering.net/a-arm.html 

Double A arm setup - bolt on


Cam - April 28th, 2008 at 03:00 AM

Yeah, definitely need to get Tas in on this one :tu:

Good call Brendan, hadn't thought of that.
If anything though, wouldn't the top shock bolt be more load bearing in this case?
I'm purely basing this assumption on the top bolt acting like the strut towers in a mcpherson strut car and/or the top of a coil-over mount in a double a-am set-up - normally mounted to the chassis.

I like that bolt on set-up, looks really cool, be interesting to see how it performs in a real world scenario vs a sorted beam front end.

As Mac said: Need Tas here... Ian (2443TT) would no doubt have some insight following his chassis build too.


2443TT - April 29th, 2008 at 01:17 PM

I really like the eyeball engineering front end. It could be converted to legal for australian road use by converting all the rose joints to a real bushing. Would take some time though.

There is a lot of people that have tried making various syspension conversions that i've looked at on http://www.germanlook.com  but it seems that all but 2 or so were never completed. What little information there is is limited to a few pictures. Nobody seems to share their research or technical info.

Another front end transplant that is work a look would be converting the twin a-arms from an R32 skyline. THese cars are everywhere and many are broken so the parts will be very cheap. Add to that they have 280mm rotors with 4 spot calipers on the front and youve got a pretty tidy setup right there. It could be made as a complete bolt on to use the front torsion tube mounts and the four main front body-chassis bolts. As for the steering though its hard to say how that would work out till you tried it.

As for my honda civic teins, they will need to be re-valved as the rebound valving is configured for a front engined car, not a rear engine car. The bump valving is adjustable which will be nice, especially on cairns's crater ridden roads.


Cam - April 29th, 2008 at 04:02 PM

I've got mates who are into skylines & often thought something along the same lines. Could a 924/944 rack like you're using work?
I think it would be particularly cool conversion paired with a 993/996 double A-arm rear end. From what I've seen, wouldn't you also have pretty much the same sized Brembo's front & rear too... "out of the box"?


westi - April 30th, 2008 at 12:06 AM

you can buy a road legal double a-arm front here,it comes with all the adr aproved paperwork.disc to disc what ever width you want.
try looking in some of the hod rod mag's.$3500
comes with every thing .


2443TT - April 30th, 2008 at 12:18 AM

Adapting the entire skyline rear cradle would be pretty easy too. The whole assembly is held to the chassis with 4 main bushes. The rear cradle holds the diff, but is big enough to put a transaxel in the middle of it. R32 CV's are good for 500rwhp easily too. I guess the reason its probbaly not done is nobody would want to admit their VW is 3/4 rice burner. If its porsche at least its still german...!

The 944 racks are all power steering which is why i went 924 instead. I guess it would come down to which way the spindle arms are facing. I am pretty sure they are to the back of the car like a vw. So a steering box from a mazda 121 which is what I tried first off is the go. Cheap and the right width for the job. If your interested in knowing for sure I can check my r33 tomorrow, it would be the same as an r32. Its been a while since ive been under the car.


mactaylor - July 1st, 2008 at 04:24 PM

been doin some research on this and it does look very promising will keep everyone in formed of what i find!!