Turbo B18c Power FC... Tuner having problems tuning..

[locote]

2 flat spots and not finding a good vtec cross over point..
Any experince ppl got any tips that i can give the tuner so he gets it right next week when its goin back for a retune..
Stock B18c motor T3/4 turbo Power FC to tune

[honda_b_blastn]

If your still not happy with your tune. Contact Dave
Pretty sure e is heading over to Perth soon

Regards Paul

[gambate]

post up your graph with AF reading

[locote]

No A/f ratio on chart can even see the flat spots on it

[saxman]

hard for anyone to give any advise without even being able to see the a/f graphs

[locote]

Problem is the timing.....
the timing retards it self to -6 every gear change. and theres no option on the hand controller to disable that.
But its running alot better now

[saxman]

how does that give you flatspots and a bad vtec crossover if the timing is just being changed when off throttle?

[locote]

I dont know man, it just does as wierd as it may sound..
But as far as on the road theres no more flat spots...
Only in the dyno can it be seen

[whoosh!]

i had the same problem.... power fc for hondas is mainly built for honda na application...can be tuned but will cost alot or not run properly.

[pornstar]

get urself a tuner who knows what they are doing with it, ive never heard so much crap about the pfc not working on a turbo honda.

[locote]

It running ok now..
the hand controller is not realy the ideal why to tune a turbo setup but is it...
Im getting a few things them its back to another tuner with the powerexel software to tune it properly with laptop..

[pornstar]

remember the dyno does not always equal the road, its only a machine that tries to replicate the road environment, also making it alot safer at the same time.

I've tuned a fair whack of the pfc on turbo hondas here in melbourne, what function/table are you looking at specifically from the power xcel software that would help you tune it better that the hand controller cant provide?

[locote]

The timing kept dropping to 6, 7 degrees betwen gear changes that was the main problem.
and no were in the map does it go that low...

But apart from that its running ok

[whoosh!]

dats wat i heard fronm the tuners... dont bite my head off...
lol

[pornstar]

locote, without being at the car its hard to give you a diagnosis, but ill try. Firstly , on gear shifting, the loss of 6-7 degrees would not show on the dyno graph as the ramping is done whilst in gear, so the dips are not caused by this, sounds like a totally unrelated matter.

[locote]

The timing is displayed in my controller..