How Do I Advance My Timings?

[PandaR33]

I have a r33 s1 rb25de and im just wondering how do i advance my timings? i had a look on diy but couldnt find it. a photo would be grate if someone doesnt mind?

cheers Panda.

[nIsMo86]

First of all you will need to buy/borrow a timing light.

Read the RB25 workshop manual section on checking your timing. It explains how to check and adjust it.

Then use the timing light to advance it to whatever you wanna set it to.

If you do advance it, make sure it doesnt ping. Also you must run it on 98 octane fuel to help avoid pinging.

[SKiT_R31]

take off the centre coil pack cover on your engine, on the cyl 1 coil pack (front) pull back the black insulation and clip the timing light onto it (ensuring the arrow is pointing towards the plug). Now undo the 3 screws on your CAS (just loose so you can turn it, dont completely remove), and start the car (cas should be warm and idling at 750rpm), point the timing light at the harmonic balancer (big centre pulley off the crank) and pull the trigger. The red marker (first) is 0 degree's, and it goes in increments of 5 degree's. Standard it should be on the FOURTH marker, 20 Degree's is a advanced is a good start so that should take you to the FIFTH marker. Advance or retard the timing to net you the best drivability, pending your fuel and engine, dont push it too far, because any gains will be lost if the sensors pick up detonation. 98ron E10 does a good job imo, for increased ign timing on stock factory rich engines.

[_bobo_]

man sounds complicated lol.

any idea how much it would cost roughly to get a workshop to do it???

[SKiT_R31]

man sounds complicated lol.

any idea how much it would cost roughly to get a workshop to do it???

probably an hours labour, but they're not likely to take the car for a thrash to find the best suited timing, would just set it to whatever you asked. Otherwise you could pay for dyno time, or a local street tuner but the gain vs cost might not be worth it.