Dual VVti Information for Haltech system

[Sarge3244]

Hello,

For my engine swap Altezza 3SGE in Celica T18 i need a Haltech ECU. The Problem is, the tuner doesn`t have any information about the dual VVti. Does anyone know rpm and map sensor and the vale timing?

[MANDALAY]

Hate to sound negative but if he cant do it find another tuner

[Sarge3244]

He can but if he have no information or original data maps he must experiments and this is very expensiv for me

[RST]

Where abouts are you located -I checked out Haltech when I was looking for an ECU and it seemed it wasn't recommended for a 3SGE with VVT-i, a least with the guys I checked with so it was struck off the list.

Pick an ECU your mapper works with, for example I think the Link and the MoTec come with base-maps for the VVT-i 3SGE (Link did anyway). I'd suggest choosing a different mapper if he doesn't know.

....but that's only my limited experience of it.

How much are you spending on an ECU before mapping -pro mapping is always expensive, particularly if a decent dyno session is included. But I really believe you get what you pay for with this and a good mapper is worth his weight in gold. A good mapper might also offer you trade rather than full rates for dyno time (wink wink).

...Have you tried Thor Racing in the UK for advice? They're doing some pretty good stuff with Black Tops and other Toyota engines I think and can suplly a whole range of ECU's. The guy (I forget his name) is very approachable.

I know last time I was there they were transplanting a black top in a 70's Celica, and they had an Altezza race car up on the ramps. They were also in Japanese Performance magazine this month with a gen 3 Supra they'd fitted with a 1UZ-FE 4L V8.

...maybe just somewhere you might like to check with although it is UK based I guess? Home - Thor Racing (Japanese Performance Car Tuning)

[Roman]

I cbf finding it just right now, but I've got downloaded the factory settings for the altezza powerfc, which shows what the maps do for the cam angles.

Basically, the intake cam advances with high rpm and high throttle, and the exhaust cam does the opposite.

Or vice versa, cant remember ahahaha.

But looking at the powerfc maps gives you a good idea of how the cam angle changing errr logic works.

[MANDALAY]

When l started this project i came to the conclusion dont do it unless you have a goooooooooooood tuner. A good tuner might not have worked on a Beams but today nearly all cars have VVTi to help with starting point. Yes it will be dear = time but thats the price you pay going away from OEM

[assassin10000]

Originally Posted by Roman

I cbf finding it just right now, but I've got downloaded the factory settings for the altezza powerfc, which shows what the maps do for the cam angles.

I'd be very interested in getting a copy of that if you still have it somewhere.

Thanks,
Andrew

[Roman]

IF you download the FC datalogit 'demo' software from here then it includes a big stack of basemaps.

Load in the altezza one, and it shows you the cam angle tables, fuel tables, yada yada...