SR4s owners chime in

[MilouSR4]

Hi all,

I have recently decided to restore my SR4 and get it back to the track. The car was bought on the 2011 from the UK and brought in Cyprus. I drove it to the track a couple of times and since then it has been sitting in the garage. I am planning to attend a couple of local races this year so i had to become competitive.

First i have changed the engine, from ZZR1200 went to gen2 hayabusa (stock for the moment) The ZZR1200 its being for sale by the way.

Ordered some larger Avons, from Dunlop 662 170 front and 200 rears to 046 Avons 195 and 250.

I am also working on building a new complete body, which is estimated to weight around 50kg less than the original body, i found out this after talking with some guys in Italy who race their SR4s on hill climbs. Their cars are insane, very light and very powerful.

My suspension is the one way intrax

I would like to start this discussion in order to get some RS4 owners to share their knowledge, exchange information and maybe even help each other with parts.

cheers
Antonis

[shirt]

I dont have an sr4 but will be following with interest.

Just bought an sr8 without a drivetrain and will be performing a full rebuild here in Dubai. Engine will either be a subaru boxer or a mazda rotary.

[ak47si]

Following..

I recently just bought a 2004 SR4 and looking to rebuilt it and do track days.

[MilouSR4]

Custom made titanium exhaust loading

[MilouSR4]

As i see not many people are happy to share their knowledge and experience, no worries i will share mine with many pictures to follow 😁

[Josh Smith]

There aren’t many SR4s left racing in the UK anymore which is probably why there isn’t many replies.

[Gc285]

a few sr1s though. SR4 in all but name.

[Josh Smith]

Most all still in original baby spec though

[Gc285]

Nothing a set of 42mm Jenvys and a remap cant fix.

[MilouSR4]

I Agree on the exhaust/remap combo, factory throtle bodies are good for over 300whp, why spend so much for so little?

[MilouSR4]

i am looking for some information regarding the suspension setup for the SR4.

I am planning to run the larger wheels and the car ir running on the intrax 1 way. I've seen people recommend removing the rear Nik link on some models, will it help on the SR4?

Also any information about ride height, suspension stiffness, camber, toe?

thank you
Antonis

[Gc285]

Rear niklink disconnection is normally a wet setup thing.

[MilouSR4]

Thank you for the information

[MilouSR4]

Some pictures of the exhaust system

[splitpin]

MilouSR4 said:

i am looking for some information regarding the suspension setup for the SR4.

I am planning to run the larger wheels and the car ir running on the intrax 1 way. I've seen people recommend removing the rear Nik link on some models, will it help on the SR4?

Also any information about ride height, suspension stiffness, camber, toe?

thank you
Antonis

Until you get a decent amount of seat time in the car and you get a feel for what works best for you personally, I'd always recommend putting the car back to it's standard ex-works settings, namely:

70mm ride height, 40mm minimum splitter/diffuser, front and rear.

2.5 degree camber front, 2 degree camber rear.

2.5mm overall toe out front and overall toe in rear.

Medium Niks front and rear.

And with 1 way Intraxs (presumably 300lb front springs and 350lb rear springs?) centre of range, front and rear.

Hope this helps.

Trev

[MilouSR4]

Thank you Trev,

I guess this is the right way to do it. How can i identify which nick links i have?

[splitpin]

Welcome

If no-one can help in the meantime, as I'll be working on the car sometime this week and it has a full set (soft. medium and hard) for front and rear, I'll measure them and let you know; basically, the stiffer they are, the bigger the tube diameter.

Incidentally, be very careful buying used Niks; they can eventually let go through metal fatigue.

Edited by splitpin on Sunday 18th February 19:04

[MilouSR4]

👍

[Extremeracer]

I had a 1500cc SR4 for 6 years and enjoyed it immensely. If you are running larger wheels you may need to carve off the return edges on the rear wheel arches to prevent tyre chaffing.

[MilouSR4]

I got myself a set of 195 front and 250 rear Avons, i tried on a rear and it looks like it fits, there are some points where clearance is a few mm but still works.

I think its the front splitter which might need some trimming.

Can you share some allignment data of the car when running the larger tyres?