Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by wiggles » Wed Aug 30, 2017 4:49 pm

Anyone tried the hardrace "reinforced" droplinks?
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Rotary Potato » Wed Aug 30, 2017 5:06 pm

Scartlead wrote:
Wed Aug 30, 2017 4:43 pm
Could I ask what variables you have to consider when setting the length of the droplinks?
Are both sides equal?
Do they fit without fouling anything throughout suspension travel?

Those are the big 2 I'd consider. I suppose that depending on setup (not looked properly at how it's done on an RX8) it's theoretically possible to alter the lever arm and loads with longer/shorter droplinks, in practice I doubt it makes any difference whatsoever.

Que PeteH popping up to give me a "nice try, but no ...", followed by a correct explanation. :lol:
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Wed Aug 30, 2017 5:13 pm

Scartlead wrote:
Wed Aug 30, 2017 4:43 pm
Could I ask what variables you have to consider when setting the length of the droplinks?
This should give you an idea.
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by PeteH » Wed Aug 30, 2017 6:32 pm

Rotary Potato wrote:
Wed Aug 30, 2017 5:06 pm
Que PeteH popping up to give me a "nice try, but no ...", followed by a correct explanation. :lol:
As if! :lol: (and it's Cue, by the way. Que is the abbreviation for Quebec :P )

Actually, I'd say you are spot on. I never understand why people spend good money on adjustable drop links. If you need adjustable drop links then your body is twisted, or your suspension is lop sided. :shock: (or you are a super-professional race team that is racing on an oval circuit, and you want some deliberate cross-weight......)
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Freeman38 » Mon Sep 04, 2017 6:51 pm

mzivtins wrote:
Tue Aug 01, 2017 1:59 pm

ARB's:
Most aggressive seem to be UltraRacing, but RB all round with a good set of coilovers is amazing.
Most aggressive ARBs are Progress Tech / Agency Power ones or the Hotchkis ones I have which are adjustable, with the following specs:
Front Sway Bar :
Lightweight durable and adjustable 1-5/16 in. (33mm) hollow
110% stiffer than the stock sway bar with a rate of 970 lbs/in.
150% stiffer than the stock sway bar with a rate of 1150 lbs/in.
195% stiffer than the stock sway bar with a rate of 1370 lbs/in.
Rear Sway Bar:
Rear bar 21mm hollow
390% stiffer than the stock sway bar with a rate of 195 lbs/in.
470% stiffer than the stock sway bar with a rate of 250lbs/in.
580% stiffer than the stock sway bar with a rate of 340 lbs/in.

Easy to lubricate polyurethane bushings and heavy duty brackets with zerk fittings included.

I currently run in position 2 on both bars, with a recommendation from center of gravity who setup the car to move to position 3 on one side of the rear bar when grip conditions allow.

I original though you would need to match the arb end position on both sides, but apparently not, and so you have half increases between those listed
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by V8 Power » Mon Sep 04, 2017 7:33 pm

Where did you source the Hotchkiss bars from?
Peripheral Ported intake and exhaust engine
Carbon seats
Sabelt 6 point harnesses
Bumper cold air feed
Tein Monosport coilovers
Lexan front windows with sliders
Carbon Adjustable wing
Feed gearknob
Axial short shift
OMP suede wheel with quick release
RE Amemiya front splitter & canards
Autec lightweight alloys
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Freeman38 » Mon Sep 04, 2017 7:55 pm

●2004 Custom Blue ● Full Body kit and Carbon Fibre Mazdaspeed style Spoiler
● Polybush Full Kit● XYZ Coilovers● Hotchkis Front ARB's
● Pettit ANP Remap and EFIDUDE Logger●D514A Coil Packs Setup
● K&N Panel Filter● Racing Beat CAT Back Exhaust● ToyoSport HiFlo CAT
●Dimpled and Grooved Discs●EBC Yellowstuff pads●HEL Brake/Clutch Lines
●XXR 550 Wheels 8.75J ET36●Nankang NS2-R●R3 Differential

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by PeteH » Mon Sep 04, 2017 9:12 pm

You should never adjust the two sides of an anti-roll bar to different settings!!
If you do two bad things happen:
1) When you go over a symmetrical bump (like a sleeping policeman) the car will roll as the suspension compresses and extends. The car will feel odd, and feel like it's squirming over bumps.
2) When you go round a corner in one direction the car will drop a little bit, and when you corner in the other direction the car will rise a little. You may or may not notice the asymmetric handling, but it will be there....
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by V8 Power » Mon Sep 04, 2017 9:25 pm

Pete
I thought the load is split evenly between the two sides.
Therefore the two different settings gives a resistance evenly between the two, sort of an additional half setting?
Peripheral Ported intake and exhaust engine
Carbon seats
Sabelt 6 point harnesses
Bumper cold air feed
Tein Monosport coilovers
Lexan front windows with sliders
Carbon Adjustable wing
Feed gearknob
Axial short shift
OMP suede wheel with quick release
RE Amemiya front splitter & canards
Autec lightweight alloys
Whiteline ARB's
Stripped interior
Aurora blue R3

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by PeteH » Mon Sep 04, 2017 10:10 pm

The torque in the bar has to be equal at each end of the bar. But if the lever arm is different at each end then the vertical force applied to the suspension is different.

Force = Torque / Lever Arm Length

I had thought about this before, and realised what a bad idea it is.....

Suspension can be complex, and even supposed professionals like Centre of Gravity can get it wrong!
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Freeman38 » Wed Sep 06, 2017 9:37 pm

Thanks Pete.
You confirmed what I thought to be correct.
Which is your changing the angle and position on one end making for a shorter leverage on one end.
This would mean a different twisting force from left to right.
●2004 Custom Blue ● Full Body kit and Carbon Fibre Mazdaspeed style Spoiler
● Polybush Full Kit● XYZ Coilovers● Hotchkis Front ARB's
● Pettit ANP Remap and EFIDUDE Logger●D514A Coil Packs Setup
● K&N Panel Filter● Racing Beat CAT Back Exhaust● ToyoSport HiFlo CAT
●Dimpled and Grooved Discs●EBC Yellowstuff pads●HEL Brake/Clutch Lines
●XXR 550 Wheels 8.75J ET36●Nankang NS2-R●R3 Differential

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Fri Sep 08, 2017 3:52 pm

I've still not fitted my new roll bar kit yet as been holding off till I ordered new coilover kit with my next payday bonus coming up.

Now I was set on getting the Flex Z along with the EDFC 2 controller, BUT since looking on MazdaRotaryParts site I see no long selling the EDFC 2 kit as it's been replaced with the "Active EDFC adjusting with GPS".

http://www.mazdarotaryparts.com/bnew-rx ... 1767-p.asp

After seeing a few YouTube clips of it in action, I can't help myself and want this kit on my R3, and yes I'm fully aware this is abit on the extreme side for a road car, but the full auto independent feature has turn me into a kid in a candy store.

Here's the thing,
1, Anyone using this kit yet with any real world feed back?
2, Would I be better off going with the Tein Mono Coilovers instead of the Flex Z? I.e. is there more difference in soft to hard damping adjustment on the Monos over the Flex Z to really benefit from the Active EDFC kit?

Il just add price is irrelevant, I'm looking for what will work best and get the most out of the Active EDFC here between the two kits.

Couple YouTube links for anyone who's not seen the Active EDFC kit before.




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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Fri Sep 15, 2017 2:03 pm

Well, for those interested in suspension modifications and for future search info I have more to add.

Here goes, I was considering the Tein Flex with the EDFC, then I was thinking how offen will I actually end up tweaking the damping with the EDFC?, which then moved me onto eyeing up the almighty Ohlins DFV!

Then, going back the other way as mention after working out pricing I saw the amazing EDFC Active kit which then lead me back to Tein. Futher to this, only Tein offer this Active feature and the fact I could get the coilovers and acvtive kit combined for less than just the Ohlins kit was a no brainier.

So again then I was back looking at the Tein coilovers, after a lengthy call to Clive (Mazda Rotary Parts.), I decided on the Tein Mono Sports coilovers and will be adding the Active EDFC kit with it to fully benefit from the adjustable dampening, so I placed another order with Clive.

And here we go, my Tein Mono Sports just turned up today.

More suspension goodies to follow shortly.
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Scartlead » Fri Sep 15, 2017 4:42 pm

Did you end up not liking the basics you had for the car?
Aka Mark 8)

My Build :thumleft: viewtopic.php?f=204&t=70916

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Fri Sep 15, 2017 7:05 pm

Scartlead wrote:
Fri Sep 15, 2017 4:42 pm
Did you end up not liking the basics you had for the car?
Hello mate,

I actually haven't driven the car on them, so can't really say how they are. That's unless you count driveway onto trailer then off the trailer and back onto another driveway.

Il try keep this simple as possible as this is a suspension thread. I got them when I was looking for some fresh parts and to get my car lower without the issues that can be had with a spring kit. Since then slowly what I want from the car has changed and for what I have in mind and working towards with it, these parts I'm building up to will be more suited later on with my build.

Will be putting my Tein Coilover Basic's kit up in the sale section once I get round to swapping everything.

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by V8 Power » Fri Sep 15, 2017 9:28 pm

Good choice with the Tein Mono's, I'm sure you wont be disappointed.
Half way on the damper adjustment is feels the same standard R3 stiffness.
Greatly reduced roll though and better control of wheel rebound.
Peripheral Ported intake and exhaust engine
Carbon seats
Sabelt 6 point harnesses
Bumper cold air feed
Tein Monosport coilovers
Lexan front windows with sliders
Carbon Adjustable wing
Feed gearknob
Axial short shift
OMP suede wheel with quick release
RE Amemiya front splitter & canards
Autec lightweight alloys
Whiteline ARB's
Stripped interior
Aurora blue R3

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Thu Sep 28, 2017 1:57 am

V8 Power wrote:
Fri Sep 15, 2017 9:28 pm
Good choice with the Tein Mono's, I'm sure you wont be disappointed.
Half way on the damper adjustment is feels the same standard R3 stiffness.
Greatly reduced roll though and better control of wheel rebound.
Great, thanks. What have you set your spring pre load to?
Last edited by Goobie on Thu Sep 28, 2017 2:15 am, edited 1 time in total.

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Thu Sep 28, 2017 2:07 am

Popped down to Mazda parts department today to gather a few prices should I need to renew any of the factory camber bolts etc, plus was considering a full fresh set of them till I tally'd up the total.

Anyway, il post this info here as means for future use should anyone else be needing new bolts or arms.

Full part numbers and prices.

Front four camber bolts, washers and nuts £78.89p.

Rear fours camber bolts, washers and nuts £71.40p.

Full set of rear arms including factory bushing (one complete peice.) £891.13p.
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by V8 Power » Thu Sep 28, 2017 6:28 am

I set pre load at 5mm of compression from the springs relaxed length.
All is good with that.
They were pre factory set at that but I undid them all just to check.
Peripheral Ported intake and exhaust engine
Carbon seats
Sabelt 6 point harnesses
Bumper cold air feed
Tein Monosport coilovers
Lexan front windows with sliders
Carbon Adjustable wing
Feed gearknob
Axial short shift
OMP suede wheel with quick release
RE Amemiya front splitter & canards
Autec lightweight alloys
Whiteline ARB's
Stripped interior
Aurora blue R3

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by wiggles » Thu Sep 28, 2017 9:47 am

Thanks for the info on the parts, I need the front lower shock bolt and nut and was wondering how much they would charge/steal from me for them. But based on your prices if they are around the same as the other nuts/bolts I should be looking at £15 or less so that isnt to bad.
Project thread Galaxy grey 231 - Street Port, Enkei 9J wheels, Tein coilovers, Jperformance exhaust

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Fri Sep 29, 2017 12:37 pm

Goobie wrote:
Fri Sep 15, 2017 2:03 pm

So again then I was back looking at the Tein coilovers, after a lengthy call to Clive (Mazda Rotary Parts.), I decided on the Tein Mono Sports coilovers and will be adding the Active EDFC kit with it to fully benefit from the adjustable dampening, so I placed another order with Clive.

And here we go, my Tein Mono Sports just turned up today.

More suspension goodies to follow shortly.
And here we go, my final part has just turned up.

I went for the full top spec "Active Pro GPS" version so I got all the extra features in the end, purchase via Clive at MRP again, excellent service as always.

Only got sent this picture for now, more to follow when I get home.

Also some crazy news paper wrapping in the box.
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Fri Sep 29, 2017 2:51 pm

Full kit unbox'd.
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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by V8 Power » Fri Sep 29, 2017 2:57 pm

I think we should try it out on my car first :D :D
Peripheral Ported intake and exhaust engine
Carbon seats
Sabelt 6 point harnesses
Bumper cold air feed
Tein Monosport coilovers
Lexan front windows with sliders
Carbon Adjustable wing
Feed gearknob
Axial short shift
OMP suede wheel with quick release
RE Amemiya front splitter & canards
Autec lightweight alloys
Whiteline ARB's
Stripped interior
Aurora blue R3

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by Goobie » Fri Sep 29, 2017 3:36 pm

V8 Power wrote:
Fri Sep 29, 2017 2:57 pm
I think we should try it out on my car first :D :D
Haha, this lots should take me a while to fit. I guess you could say my original rough budget on the first page has gone out the window, must of spent around double?

Anyhow, my car cornering ability should be awesome once it's all on, especially with the current £5 budget tires that came on my to quote previous owner, "no expense spared" car!

I've set aside £1,000 for a full set of rubber anyway, as 19" rim size a bit pricey for a real set. Last thing I wanna be doing is fitting some average tires, seems to always be massively over looked when upgrading the cars handling.

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Re: Suspension/Handling - Bushing, Anti Roll Bars & Coilovers.

Post by V8 Power » Fri Sep 29, 2017 4:02 pm

You will get really good rubber for half that.
Peripheral Ported intake and exhaust engine
Carbon seats
Sabelt 6 point harnesses
Bumper cold air feed
Tein Monosport coilovers
Lexan front windows with sliders
Carbon Adjustable wing
Feed gearknob
Axial short shift
OMP suede wheel with quick release
RE Amemiya front splitter & canards
Autec lightweight alloys
Whiteline ARB's
Stripped interior
Aurora blue R3

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