This document is compiled from my experience and a number of sites/forums/sources. Reg Riemer's SONIC document also helped and I hope he doesn't mind me stealing some info & putting them in my own words. Thanks to all those who have provided me with information, special thanks to John89t for the parts & advice and Marty (Bondango) for the tips & info
NOTE : You should have already done basic performance upgrades (BPU) such as exhaust, induction kit, preferably at least a hybrid turbo etc. before looking at a mod such as this. Ensure your cooling system is in top shape (new stat, rad cap, rad etc where necessary) and preferably ARP studs and a metal head gasket. If you run more boost you are more likely to start killing motors, maintain your car well or suffer the consequences. Oh, and check your timing, mine was way out!
Timescales - If you really know what you were doing you could fit the afm, injectors, afpr and safc in a day. If you are reasonable with spanners then a weekend should easily be sufficient. This is the route I chose, starting on a Friday night and finishing on a Sunday (I did cheat and pick a bank holiday weekend just in case!)
Some background to the Lexus AFM + 550cc injector mod / Lexus Riemer mod - it's quite lengthy but hopefully comprehensive, believe me it took longer to right than it will to read!!
NOTE : You should have already done basic performance upgrades (BPU) such as exhaust, induction kit, preferably at least a hybrid turbo etc. before looking at a mod such as this. Ensure your cooling system is in top shape (new stat, rad cap, rad etc where necessary) and preferably ARP studs and a metal head gasket. If you run more boost you are more likely to start killing motors, maintain your car well or suffer the consequences. Oh, and check your timing, mine was way out!
Timescales - If you really know what you were doing you could fit the afm, injectors, afpr and safc in a day. If you are reasonable with spanners then a weekend should easily be sufficient. This is the route I chose, starting on a Friday night and finishing on a Sunday (I did cheat and pick a bank holiday weekend just in case!)
Some background to the Lexus AFM + 550cc injector mod / Lexus Riemer mod - it's quite lengthy but hopefully comprehensive, believe me it took longer to right than it will to read!!