Valve Springs Wtf

[turtle33]

had my car in for a custom tune today, and how happy was I when the tuner rang up and said mate 223rwkw absolute best as your valve springs are jumping all over over the place at 5000 or above. Up to 5000 the graph was stronger than an xrt which has 265rwkw. Every thing I've read so far say's 240-260rwkw seems to be the place where the springs run out, that's a long way from 223. I wanted to acheive 245-250rwkw but if I have to go to the effort of the springs I will go the injectors and pump as well and aim for 300 odd. The car has 5100 very hard k's so it should definatly be loose enough.any one else have the spring fail at such a low rwkw figure.

[Flukey]

I dont think there is any definitive power level where springs fail. Some T's have higher thresholds than others.

[C.S.I]

You gotta remember Dyno's are not always absolutley accurate.

Whats really important are the start and finish numbers.

What did it run stock ??

[turtle33]

it made 193 stock, cai + hotdogs 202. I realise a dyno's arnt equal but other t's on this dyno have made much better numbers and have backed up and pulled almost exactly the same numbers on other dyno's. The tuner or his tools arnt in question here, just the springs

Edited 05/05/05 12:28 PM by turtle33

[macka'sxr6t]

I aint gonna get involved in this one.

But I can hear the key strokes, their coming

macka

[AWW XR6T UTE]

Join the club. My springs were bouncing at 220rwkw, I had them replaced, but haven't been back to get the custom tune yet.

[turtle33]

I really want to find out if others have the same problem, I would be way pissed if I was the only one that's all. The first call I made afer I got off the phone was to my dealer because before I signed on the line, he assured me the mk2 hade been fitted with the "heavy duty" springs. I knew he was lying I seen his lips move.

[Guest xrtwpn]

Every car is different I have upgraded valve springs and im having issues with them now and I have to get strong ones again

All I can suggest is there are a few options out there for valve springs and dont settle for the basic ones most of us seem to go for cause they arnt very good at all good luck

[ENVY-T]

My valve springs have bounced a couple of times, and my car is stock!

Now correct me if I'm wrong, after giving it WOT onto a main rd the lights changed and I had to stop, the car started to shudder, almost like it was running on 4 cylinders. I called Nizpro and explained the event, and was told that it was most likely valve related. Had the ecu checked and it hadn't thrown any codes. It has done this three times and only when applying wot, and changing manually at around 5700-5800.

[ubyte]

Prolly a dumb question but worth asking...

Envy-T; what type of gas do you have in the tank?

Mine does this occasionally too. But only when I got a bit of a jungle juice mixture in the tank ie A bit of Vortex, BP Ultimate; BP premium; Optimax.