High Compression Ratio ----> Detonation

[irishtwincam]

Your cam timing is wrong.
Also with high compression and cams it should be recommended to use EMS!

Increased performance, needs headers, more performance with higher compression.
Mfg. recommends setting the cam at

max lift for the intake at 106° ATDC
max lift for the exhaust at 116°BTDC.


Same cam timing applies to the following cams
264°_____7.6mm_____In valve open 26°BTDC_____ex valve open 68°BBDC TRD - no longer available.

264°__7.9mm____Toda - p/n 02.TD.CS4AGCJ2
264°__8.35mm___HKS - p/n 2202-RT032, Can be used on 4AGZE
264°__8.7mm____Toda - p/n 02.TD.CS4AGCJ3, Recommended to use Toda’s valve train kit, i.e., under bucket shims
264°__8.9mm____Toda - p/n 02.TD.CS4AGAI1, Recommended to use Toda’s valve train kit, i.e., under bucket shims

Copied from http://club4ag.com/technical_main.htm


More cam card images here, but Ive been looking at some of the numebrs and they are either wrong or I dont understand maths and engines.
http://s223.photobucket.com/albums/dd186.../CamCards/


That crystal hack aint a great idea as your fuelling and timing events will be out of sync!