Evening all,

Took the cossie for a little run earlier and noticed before I left a load of clicking under the bonnet.

Turns out to be the amal valve - having a fit by all accounts
Have disconnected it for the moment to conduct some tests, look for breaks in the wire etc.

Spec of my car is t34 on greys, NMS chip, RS500 intercooler etc etc

Questions are:

1. Do people still run an amal valve - or have they gone to a boost controller? I seem to have MASSIVE preload on my -34 - its almost taken up all of the adjustment on the rod - yet only peaks about 20 psi??

Now if im correct in saying, there shouldnt need to be all this preload as this can damage the actuator??
I know tuners used to increase the size of the jets to do this but im thinking a boost controller is a more precise way of controlling the boost??

2. When I was doing a little tidying under the bonnet, I noticed that the amal had been relocated from the top of the intercooler to the n/s bulkhead, lengthening the pipework to do it??? Would the change in pipework have an effect on the operation of an amal valve when working correctly??

3. What could be causing the intermittent clicking at the amal valve?

I do have the car booked in soon with Karl at NMS - but would like to get a few diggly problems sorted first .

All help appriciated.

Huw

 

a good electronic boost controller would work well better then a manual controller
from past exspereance would say that electronic controllers are more stable

as for the preload on the actuator would say a leak some where or a worn actuator
im holding 26psi on a -31 and peaking 33

 

Sounds like earth wire on Amal valve may be chafed/shorting to ground and activating the valve? Check wiring back to ECU.

 

If the Amal valve is shafted, I have a spare you. An have foc

 

Thanks for the replys lads

Thanks buddy - thats much appriciated.
Could I take you up on that please? Do you want any money for postage?

Huw

 

Any idea on what pin on the ECU? Take it by ECU, we are referring to the coupling to the ECU??

Huw

 

pin 16
black red on the amul valve is battery voltage and is supplied from the fuel pump relay
l1 and l6 activate the amal valve when you key on and the fuel pump is active
the connectors on the valve go dicky as do the valves
if your going to karls why don't you just ask him to fix it will probably only take him 10 minutes

 

Thank you for that.
No doubt Karl will be able to sort but I thought id attempt to resolve a few issues before presenting.... and learn a little bit on the way

Cheers
Huw

 

No, just pm me your address and I'll stick it in the post mate

 

You have PM!
Very greatful for that bud....

Took the amal off, got voltage when shes running rather than ignition - prob relating to a fuel wiring mod?? Amal knackered then.

Was only running one restrictor too...

Have now taken the preload off and set it to half moon

Huw