coach3062 Member 91 Member For: 19y 13d Gender: Male Location: North west NSW Posted 18/06/06 11:13 PM Share Posted 18/06/06 11:13 PM I have a manual ute with an 8psi edit, cai no center muffler, regapped plugs and 95K on it.It needs a custom tune as it isn't always smooth from 3500 to 5800.Is the surging due to the springs not keeping up their end of the deal or something else (remember 95,000 klms).I would like to fit larger injectors and get a custom tune, but should I do valve springs as well? I do not drag it or flog it from standstill. I am after smooth effortless torque all the way, but I dont really mind if there are black lines behind my car. I don't want to spend nearly a grand on valve springs if they aren't needed. Link to comment Share on other sites More sharing options...
Falchoon I see red Member 5,758 Member For: 22y 2m 2d Location: nowhere in particular Posted 19/06/06 11:16 AM Share Posted 19/06/06 11:16 AM Valve springs are $288 supply only or $500 fitted from Nizpro. Your tuner should be able to tell you if it is your valve springs playing up. Link to comment Share on other sites More sharing options...
G6ET8U Playing with Sports Bikes... Silver Donating Members 1,927 Member For: 19y 3m 21d Gender: Male Location: Whistling, GTX. Posted 19/06/06 01:17 PM Share Posted 19/06/06 01:17 PM Get the Nizpro Valve Springs and Injectors with a custom tune... you just won't look back, I know I haven't It's bloody awesome!! Jack Link to comment Share on other sites More sharing options...
SXR Member 14 Member For: 19y 9m 26d Posted 20/06/06 01:58 AM Share Posted 20/06/06 01:58 AM You will know when your valve starts bouncing, it will happen more under high boost. It will sound like your missing few cylinders. Link to comment Share on other sites More sharing options...
veczar Gold Platinum Member Member 1,081 Member For: 20y 7m 24d Gender: Male Location: Victoria Posted 20/06/06 02:10 AM Share Posted 20/06/06 02:10 AM Most T's get away without doing valve springs if they only have injectors, edit/unichip, cai and centre muf removed. Mine are fine at the moment at 250+ rwkw, but that said I will definetely be doing them when I get my IC, retune and full exhaust (inc cat). Link to comment Share on other sites More sharing options...
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