7a Head modification

[volcano rs]

I have another Question on the 7A head. Can i use the Hall sensor that is in the Distributor of this head with the RS2 ECU? Can i do it without any other problems??

Can i fit on it the 1.8 Coils or the RS2-ABY ones?

Thanks

yes that what i use on my shorty

[Billman]

You mean that you use the Distributor only for the Hall signal and the Stock ABY-ADU coil packs?

Can i simply connect the Distributor Hall sender to the stock hall sender plug in the ADU harness?

[volcano rs]

You mean that you use the Distributor only for the Hall signal and the Stock ABY-ADU coil packs?

Can i simply connect the Distributor Hall sender to the stock hall sender plug in the ADU harness?

yes just cut the wires from your sensor plug and solder a plug from a vw golf mk 3 if i remember rightly. you will have to align the dizzy for initial timing .play with it until your car starts then just tighten it.i also leave the dizzy cap on it stops all the dirt getting in

[Billman]

Nice thanks

The coils of the ABY RS2 and the plug pipes fit the 7A valve cover?

[volcano rs]

i think it does but how are you going to secure it ? i also used aby cam cover so i don't have that problem

[Billman]

Do i need to secure them? Would maybe the 1.8 T coils work better or they need to be secured too?

[volcano rs]

well the aby/adu ones are secured on the cam cover with 7a cover you don't have the mounting holes. you might need different caps and leads ask ridgeracer he has that set up

[Billman]

noticed the following today: The 7a intake cam has a different gear than the AAN (first edition with distributor-Hall). how can i use now the 7a cam with the AAN distributor-hall?

I also noticed that the AAN head has one more channel that the 7a dont has and the 7A head is either skimmed or it comes from the factory skimmed.

[martinjs]

Swap the drive gear on the dizzy for a metal 3b/7a one.

[Billman]

I have read in another thread that the ADU intake cam is a 3b-aan cam 10 degrees retarded or advanced. If so, can i simply install the AAN intake "wrong" to have the same timing as the ADU one? If yes tell me how exsactly can i do it.

[4WheelDrifter]

You will need one of these.

[Billman]

Are these for sale and for how much? Are there any issues because of the extra screws-weight or imbalance?

I thought that i could simply when putting the chain on i was going to put it rong so the "points" are not seeing eachother but have 1 or 2 tooth difference or something like it.

[volcano rs]

Are these for sale and for how much? Are there any issues because of the extra screws-weight or imbalance?

I thought that i could simply when putting the chain on i was going to put it rong so the "points" are not seeing eachother but have 1 or 2 tooth difference or something like it.

1 or 2 tooth would be too much you need adjustable pulley like the picture above