1GGTE stock ecu

**rustalot** · 01-10-2011, 01:08 PM

Hi have just got a forgotten project going and was wondering i'm running the water intercooled 1ggte stock ecu is there any advantages of picking up a later model ecu and fitting that? is there differences in the cams,timing etc..also chasing a suspected vacuum/pressure leak, is it safe to plug both waste gates and monitor psi on the gauge at moment max is about 7psi in stock hooked up..
any info would be great thanks

**ArthurGA70** · 01-10-2011, 09:08 PM

The different generation ECU's do not plug up from the best of my knowledge, they have different color plugs (and different amount of pins from memory) and the injectors are different sizes so you will have to get the matching injectors. There is a long standing myth that the cam's change through the generations which is supported by different Toyota part numbers, but no one to my knowledge has gotten sets side by side and done the measurements to make sure. The highest boost to run on the stock turbo's is 14psi, so get yourself a controller or tap and take that out if you want more boost, but I would not advise just canceling out the wastegates altogether.

**rustalot** · 03-10-2011, 09:50 PM

Thanks Arthur for the information. I didnt do enough research before buying the early 1ggte also wondering can you get
the same output as the late is it programming/cam timing or the intercooler difference??any thoughts..thanks

**ArthurGA70** · 04-10-2011, 10:55 AM

The air/water intercooled one's have less hp than the air/air intercooled one's unfortunately. I have a 1st generation air/air 1G, the tune will be slightly different because the later models run factory boost higher and have larger injectors as well as (possibly) the cams having a different grind, but I know for sure that the crank is different in a 3rd generation, but I just think that was to stop it from running big ends. I got around all this by getting an aftermarket ECU, 550x300x60 intercooler, 450cc injectors off an old Evo and really agressively ground cams from a 1GGE (as well as a new turbo and manifold and exhaust).

**rustalot** · 06-10-2011, 11:09 PM

Thanks Arthur for the info i should've joined this website along time ago..just wondering rough figures and recomendation what sought of
money did you spend on what you've mentioned?also this would be in a hilux which would have some weight every now and then so power down low if possible any suggestions?also running 411 diff...thanks

**ArthurGA70** · 06-10-2011, 11:26 PM

I've just joined recently too as a matter of fact, but my build has been going for nearly a year now (It was supposed to only take a month!) Uhhh in terms of money, too much lol. (All in NZD) Brand new motor cost me 1500, cams cost me 120, turbo cost 500, manifold cost me 750, wastegate was 400, intercooler 150, piping 200, ecu 800, injectors 300, exhaust 150, radiator cap 50. So just under $5000NZD and as for power figures I don't know (I haven't finished running the engine in and tuning yet) but just getting the mixtures right at 8psi it is faster than it used to be stock, and I plan to run 20psi so I have high hopes for power and torque. That is all excluding various hoses and clamps and oil and that sort of stuff which adds up quickly. Also add on 100 for a boost tap I am getting soon. As for power down low, I suggest advancing the exhaust cam a little so there is less overlap, which is essentially moving the powerband down in the rpm (so it will have less up top). When you advance the cam it will also advance the distributor which in theory should give it more but it in reality could make it run badly, so try it without adjusting the distributor back with a timing light and then adjust it back and see if it makes a difference.