rondofj

Okies thanks man, I think I will jack it up again, wheel off then measure the coil wire width and length, no. of coils etc. I assume the I dont need to measure the 'helper' coils? The net pulls up various spring rates of Cuscos, generally the fronts being in the vicinity of 8-10kg and the rears 6-8kgs..

Well I put the rear up on jackstands and took some pics - see attached. Stupid me forgot to measure spring sizes and work out a rate (SydKid), but at least I can sort of figure out 'which' Cuscos they might be. Went to ebay US to have a look, they could be similar to these: http://www.ebay.com/itm/JDM-93-98-Nissan-Skyline-R33-GTS-RB25-Turbo-CUSCO-Racing-Coilovers-Springs-/200840029302?pt=Motors_Car_Truck_Parts_Accessories&hash=item2ec2ffa476&vxp=mtr http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313&_nkw=cusco+coilover&_sacat=0&_from=R40 Most of these Cuscos don't have the 'helper' springs, dont know why mine does. I can squeeze these helpers a wee bit with my hand but the main coil is too hard to compress by hand, I can only just about move the whole assembly up manually and my guess is I'm only compressing the helpers not the main coils which suck. I lowered the rear 25mm or 1 inch by releasing the lower lock nut and winding the coilover body down by hand, using a measuring tape to keep it in check both sides. No difference to stiffness (thought it would go stiffer but realize thats only if I change the spring preload which I didnt). Good thing, is the car looks a lot better with this stance, just hope that my camber hasnt gone in so much that it will wear out my inner tyre treads. Now those main springs, do they look familiar to you, any guesses onto their rating? I want to change them and get rid of the helpers, this ok? thanks for the help mate

Thanks mate for the really thorough explanation. I don't launch my car, at the moment its a 100% streeter, where I have trouble is rolling bursts in 1st and 2nd gear and to an extent third as well, coming suddenly onto full boost at 3800-4000 it starts spinning n skating, first gear takeoffs are virtually useless even when not launching hard but going from a slow roll. Foot control being reasonable. Now I did read on the net that the Cusco Zero 1 and Comp S coilovers dont have damper adjust, mine is either of the two or an older one but definitely not the newer Zero 2 or 3 which do have this feature. I read the allen key is to hold the thread while you undo and redo the centre nut, not for adjustment of damping. But I can turn the shock body with either without jacking up the car- reasonable force required though. So the stiff springs are the problem, I am goin to try to measure them today with the wheels off and try to get a spring rate based on SydKid's thread. What I dont know is how to work out how much softer springs my dampers will take- ie 1-2 kgs down?

Hi Guys, Please see pics - first one is of front coilover tops, last two are of rear right wheel coilovers, R34GT-T. Coilovers = Cusco older model something Japanese yada yada Problem = Too bloody stiff / no traction for a 290rwkw car / can these be softened? Rears ONLY. I can rotate the coilover tops with an allen key or spanner and it rotates in the casing which is stationary. Is this the damper settings and is anti-clockwise = soft?? And clockwise = hard. Theres no marks whatsoever. Or should I change to softer springs? Im not sure but it looks like its got two springs per coilover, not sure how this works. I'm intending to lower the rears a bit as well to match the front and soften it up as much as possible. Please fire suggestions if you can - thanks Ron

Steel gears that you can see at the bottom of the pump means its genuine

up it goes

Thats right, but these Cuscos are HARD, not good man, especially since theres no damper settings, well the clutch is in so one more thing off my mind...

L I K E ! ! Thanks GTSBoy..

Hey guys, I dont know if you would call this a thread bump. My currently upgraded 290rwkw [R34GTT] is too much power for my very stiff Cusco coilovers (not sure which model, doesn't have adjustable damping) in that there is not enough grip and it starts spinning and skating on boost and makes me look like an ass. I hate these coilovers, theres very little flex when pushing the car down from the back and front. I am wanting to spend as little coin and soften up my rears, are a pair of BC BR rear coilovers the way to go? Or just get softer matched King springs or something? Front is ok, not looking to change that. cheers Ron

As GTSBoy says I might get some emery paper and wipe the front rotors a bit.

Is it possible for the brake pad bits to be pressing against the rotors to cause initial stickiness? Then once you start driving it wears off and becomes 'normal'?

I have the same problem- front end shudders /vibrates under high speed braking. The other thing is a bit of 'sticking' on very low speed 1st and second gear upon initial start and go and then it goes away after a minute or two of driving. Im thinking its the cold uneven rotors causing this, once it warms up a bit then its fine, am I wrong??

Hey GeeTeeTee I have seen a white GTT like yours in Parramatta a few times recently, not you??

Stock R34 GTT RB25DET pink label air flow meter in perfect working condition - $115 Contact: Ron 0416424446 or PM me thanks. Pick-up from Pitt Street Parramatta NSW or postage extra depending on weight/location.

SOLD

SOLD

And that includes machining the flywheel.

Just had my npc HD organic fitted yesterday- good clutch but not really as light as stock, it is noticeably heavier and bitier but streetable, still gotta get used to the clutch control- have had stalls taking off. If your in Sydney- Western Clutch in St Marys will fit your clutch kit for $350, this price is unbelievably too good and the service is equally awesome, and the nicest workshop/mech guy I ever met anywhere. Did a top job.

I just had a npc 10" HD Organic fitted to my 290rwkw R34 yesterday- its noticeably harder than the stocker but good bite and streetable- have had my engine stall a few times on takeoff- gotta get used to the stronger pedal spring

Ok thanks mate, JEM offered to keep the car for a week, to go through the issues, I asked them if they can do a couple days, so hopefully they will find something wrong in the tune and fix it... Tomorrow my NPC HD Organic is going in so a little woohoo lolzz.. I will shoot STATUS a pm

Hey guys do you think my thermostat is likely to be knackered? From what I read its gotta be the engine thermostat not the ecu one?

sorry mate its getting picked up today

Thanks man you sound like a pretty knowledgeable bloke in all areas of mechanical / tuning and car stuff, I've seen your comments in a few posts, will definitely pass your suggestions to the tuner and see what he says, but one thing with this tune, the car has returned amazing fuel economy of 13.4L/100kms (did a nice long drive plus numerous short ones last fill-up) compared to previous stock turbo with tune was always 19-20L/100kms which is really bad. Driving style unchanged.

Thanks guys, I dont have a wideband and laptop unfortunately, Johnny you could be onto something, I do think its temp related- both the starting and running shit initially. Might want to see what the workshop says

Or even crank angle sensor/timing?