Surging Still

[jasons xr6 t]

hey my car still surges under hard acceleration ,only in second not first gear.

done the valve springs

fully rebuilt turbo ,high flowed or something with a bigger acuator 10.8 or 11.8

new coils

new plugs

just serviced ,oil and filter

it has a tune only light at 248rwkw and 890 nm torque because my standard valve springs were going

silly any higher

to be honest it only started doing it after the dyno tune ??

could the acuator thing be to big for a small boost tune its only on 8psi

I had the standard tune in it last night after picking it up from the mechanics with the new valve springs and when I gased it I thought id been bombed ,a huge bang than running real bad,

took it straight back and he said the acuator was to big for a standard tune ..so I put a bta tune in and it was that but now again I have the stupid surge back..wt#

I got no iea

[phantom xr6t]

if you got bigger injectors in it it wont run on the stock tune

[XR64LT]

just my thought but make sure u dont give it WOT with under a 1/4 tank of fuel, my car was surging once upon a time until I found out I didnt have enough fuel in the tank as the fuel gets pushed to the back of the tank leaving nothing to be sucked up by the pump, all good now since I have surge tank.

Edited 25/04/12 07:29 AM by XR64LT

[nick d]

just my thought but make sure u dont give it WOT with under a 1/4 tank of fuel, my car was surging once upon a time until I found out I didnt have enough fuel in the tank as the fuel gets pushed to the back of the tank leaving nothing to be sucked up by the pump, all good now since I have surge tank.

You beat me to it.

[jasons xr6 t]

ah possible because I always drive around between empty and a quarter..dont ask me why I just do..

[XR64LT]

Have you filled her up and tried? I only found this out when I took mine to wsid for the first time cause I figured less fuel = less weight but that nearly = a dead motor. And like you said it wasnt happening till nearly half track (2nd to 3rd).

Leo

[nick d]

Always try to keep it above half on the tank unless you get a surge tank=good investment.