Rb26 Ignition Timing Set From High Tension V Primary Wire.

[GTsauRus]

the manual describes setting the ignition timing using a special timing light and connecting the inductive pickup to the primary coil wire that is looped at the back of the engine.

I set it using this method but not using the special timing light it indicated 35 deg this is were the new half cut motor i have was set.

Set it to 20 but after this got a low rpm flat spot and higher egts.

Pulled the front 3 coils off and fitted ht leads to the plugs used number 1 ht for the timing light pickup and got 10deg so with my timing light there is a 10 deg difference between primary coil wire and the ht wire.

So my q is is the correct timing at the ht 20deg

[The Dan]

turn your inductive pickup around the other way. Sometimes that makes a difference. There is also sometimes two loop wires, try the other one

[STATUS]

the manual describes setting the ignition timing using a special timing light and connecting the inductive pickup to the primary coil wire that is looped at the back of the engine.

I set it using this method but not using the special timing light it indicated 35 deg this is were the new half cut motor i have was set.

Set it to 20 but after this got a low rpm flat spot and higher egts.

Pulled the front 3 coils off and fitted ht leads to the plugs used number 1 ht for the timing light pickup and got 10deg so with my timing light there is a 10 deg difference between primary coil wire and the ht wire.

So my q is is the correct timing at the ht 20deg

yeah sometimes its best to set it off the HT lead on number 1 (more often on sr), i have had a few cars that play up and wont set correctly off the rear loop (elite is right also as flipping the inductive pickup often makes a difference)

[GTsauRus]

turn your inductive pickup around the other way. Sometimes that makes a difference. There is also sometimes two loop wires, try the other one

I read on here it can make 40deg difference with the inductive loop the other way so i already tried it and with my timing light it is the same either way.

does anyone know if the rb26 timing is 20deg when set at the ht instead of the primary loop?

[The Dan]

Setting it from a primary lead on cyl 1 is the most accurate way. You can do it that way without problems.

set it to 20 deg BTDC if it's a 32 or 33 GTR

You can also set them by ear to get them close or a dial indicator if you have the proper equipment but that's a lot of stuffing around to set your timing.

If you have a problem with the CAS, it may be off.

Also what ECU are you running? Factory ECU I think the manual recommends that you disconnect the TPS when setting timing to put it in base timing mode.

[GTsauRus]

Setting it from a primary lead on cyl 1 is the most accurate way. You can do it that way without problems.

set it to 20 deg BTDC if it's a 32 or 33 GTR

You can also set them by ear to get them close or a dial indicator if you have the proper equipment but that's a lot of stuffing around to set your timing.

If you have a problem with the CAS, it may be off.

Also what ECU are you running? Factory ECU I think the manual recommends that you disconnect the TPS when setting timing to put it in base timing mode.

The primary lead is on the 12volt side the ht is the spark plug side im using the ht to set it because the primary side appears to give a setting advanced by 10 deg using my non nissan timing light .

im running a nistune realtime ecu, i have not disconnected the tps but nistune always reads 20deg when idling around 950rpm so i assume if consult is reading 20deg then time it to 20deg. the nistune timing log is a constant 20deg. while idling.

[The Dan]

The primary lead is on the 12volt side the ht is the spark plug side im using the ht to set it because the primary side appears to give a setting advanced by 10 deg using my non nissan timing light .

im running a nistune realtime ecu, i have not disconnected the tps but nistune always reads 20deg when idling around 950rpm so i assume if consult is reading 20deg then time it to 20deg. the nistune timing log is a constant 20deg. while idling.

Sounds right.

Set it to 20 deg on the HT lead. I thought that is what you were referring to as your primary. I realise now you were actually referring to the primary circuit wire.