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Featured Replies

would a grounding kit not give the same results?.

In theory this unit is a good idea because it is stabilizing the output voltage of the battery so it will be the same all of the time, so all accessories etc get a constant stablized voltage.

 

A Grounding Kit gives a better chassis ground so that accessories have what I would call a clean ground. This is a good idea and works very well especialy the kits from Pete.

 

As I said this is only a theory so don't quote me on it.

I think all thats in that case is a few caps and a few resisters. Same as adding a Cap to your amp.

 

But thats just my 2p worth

Am pretty sure HKS do something like this aswell, sure Andy Elefthriou had one installed on his Z IIRC when I saw under the bonnet of his car at SE many moons ago.

Nope tell a lie, I'm getting confused with the HKS DLi ignition amps! DOH!

sounds like *****cks to me too. The only effect i can see it having is that by reducing the current flow from your battery , your sparks on your plugs will be not as strong, hence maybe a bit less power.

all it does AFAICS is smooth out the peaks & dips in voltage through the battery.

current draw will be the same as its consumers that draw current from the battery, not the other way round. they will still draw the same amount regardless.

most EFI systems work (internally) on a 5v system to eliminate any voltage problems anyway!

the ignition system is boosted up to 1000's of volts so i cant see any benefit there either!

 

buy one & go to a dyno! :D

Paul is the job of the PTU also to deliver a consistent voltage to the coil packs even if the battery delivers a slightly lower voltage? Just thinking about what Scoopy boy is saying, I thought that is what the PTU is there for...acts as an amplifier??

Post count for Timmy :rofl:

Post count for Timmy :rofl:

 

LOL :rofl:

 

Shut it you on 400+!!! Tiddler! ;)

Paul is the job of the PTU also to deliver a consistent voltage to the coil packs even if the battery delivers a slightly lower voltage? Just thinking about what Scoopy boy is saying, I thought that is what the PTU is there for...acts as an amplifier??

 

Hi Timmy!

 

(Sorry I know I'm not Paul!....)

 

The ECU sends a lower voltage trigger signal to the required Power Transistor for the respective coil. This transistor allows the full 14.4v (or thereabouts) to flow to the coil, which will consume as much current as it requires - this stops any unwelcome power fluctuations in the ECU. When the coil signal stops, it will have a reverse voltage - usually much higher than 12v whcih will return down the same cable. The PTU in this case actually protects the circuitry in the ECU - as these voltage spikes are not good for IC's. If your spark plug isn't igniting properly, this return voltage is much higher since less of the energy has left the coil - possibly one of the reasons why some Z owners find green connectors on the PTU. This is of course similar to the injector connectors which are very prone to this green stuff - which is caused by high frequency high voltages in bad connections. (The magnetic field generated by the returning solenoid pin in the injector creates a low current but very high voltage)

 

Anyway, I'll stop rambling now

 

Simon

if it aint broke dont fix it

 

On 300zx it's more like, if it's fixed, mod it, break it!!!

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