1KZ, understanding injection pumps.

[Natmann22]

So for the sake of sanity i have yielded and turned to the good people of the forum worlds.
My query is as such: I have a 03 Lux with a 1KZ-TE motor and have recently decided to splurge and do some mods. My initial plan was to replace the turbo for a stage 1 highflow and do the injectors at the same time, with the intention to install a unichip later. However it seems the money ive put aside is going to go further than i originally thought and a stage 2 turbo is now within reasonable spending. And it got me wondering whether the injection pump will keep up.
It was my understanding the 1kz-te need to be converted a boost compensated 12mm mech pump are something similar to make any decent power and that the electronic pumps cant flow enough fuel. I like the idea of a unichip and the options it grants but more power is also more better.

I guess the simplified question is does the electronic pump on the TE need to go if im aiming for say 120-150 rwhp, and/or can a mechanical pump still be electronically controlled by a unichip? The other question is do the stock 1kz injectors need modifying to produce better power also.

 

[Combat Wombat]

From my understanding, the elec pump (depending on model) can flow plenty, just fine tuning with a UNIchip is needed to unleash all the potential. For me the limited number of unichip tuners put me off the idea when I was in the 1KZ family.

Conversion to a Mech pump and matched injectors may be more 'bush proof' (the mech pump is usually a modified mitsubishi 4m40 unit with a boost compensator)
I would seriously consider a VNT turbo, I have seen some very impressive results when done properly.
If your in NZ maybe get in contact with Nathan at
Kaiapoi Repowers | - https://www.kaiapoirepowers.co.nz/
Kaiapoi Repowers Auto & Exhausts (KRAE 4x4)
14 Stone St,
Kaiapoi, 7630
Telephone: 03-327 5317
E-mail: enquiries@kaiapoirepowers.co.nz

Bottom line is, make sure your cooling system is absolutely nuke proof, 10 blade fan, upgraded viscous hub, new bigger radiator, perfectly sealed shroud etc.
THe 1KZ can absorb a certain amount of heat, that needs to be scrubbed off. If you cant scrub it off it just leads to premature ejaculation from the head gasket and a warped head.