Uni-chip

[Steve D]

you really cant expect much when still on the 25 degree VTC gear. when i first installed my flashpro i used a hondata base map, it kept the VTC at 25 degrees, when i dyno'd the car it made 132kw and that was a pretty shitty tune, we adjusted the VTC to 45 degrees and the power bumped another 9kw to 141kw, then when the tune was complete it made 146kw.

[u mad?]

you really cant expect much when still on the 25 degree VTC gear. when i first installed my flashpro i used a hondata base map, it kept the VTC at 25 degrees, when i dyno'd the car it made 132kw and that was a pretty shitty tune, we adjusted the VTC to 45 degrees and the power bumped another 9kw to 141kw, then when the tune was complete it made 146kw.

who tuned

[Steve D]

BYP did the tuning, i had also run the car on 2 other dyno's at the time after speculation of BYP being a little smart with the peak numbers, and it made 149kw on one and 144 on the other.

[philipminge]

OK can someone explain this vtc shit to me for a cl9 euro.

What Im after ideally would be 145 kW. I'd be happy with that.

I believe the uni chip is capable to my understanding but how do I get there. I also don't want to damage the engine. Heard of some tuners running the car lean and squeezing results and the engines last 12months. Don't want that.

Anyway so who knows cl9's back the front? Who can run the car on a dyno and retune or alter the vtc gear etc.

P.s. I'm not asking for 160kw... Would be amazing but just want a bit more.

[philipminge]

Byp.. Why r all the good companies in Sydney. Ats some bulls*** right there.
Melbourne has nothing.
Anyone know anyone in Melb that knows Hondas?

[Fredoops]

No, with plm you have to modify the stock catback, with weapon r you don't, since both produce very similar powers and weapon r is somewhat better made, I'd go with weapon r.

In relation to tuning. There's actually a few good places in melbourne that do Hondas
MSC and Revzone comes to mind, both fully registered and insured workshops.

When all else fails you can always get an etune, send your dump data overseas and get them to send you a tuning file to load.

And I'll be trying to do some hacking of the cl9's ecu soon myself, goig for a direct reflash of the memory chip on the ecu board, none of those piggyback or tricking the ecu (ala flashpro) nonsense.

As to VTC, it regulates the cam phasing, in turn it regulates how the engine breathe.

Post photos onto photobucket and link it here, I'll be interested to see he dyno graph

[philipminge]

im getting the dyno graph hopefully this morning so i will post it up asap!. wont be long.

[philipminge]

well?? why does this look so s***. lol

[Fredoops]

well?? why does this look so s***. lol

Well first of all, the tuner didnt move the VTC engagement point.

Most tuners would've lowered the VTEC engagement down to between 4500-5500 rpm depending on set up.

Did they tune anything other than AFR? whats the torque output look like?

[philipminge]

he said if he lowers the vtec, there is a huge dip in power before the vtec kicks in.....
i just asked for the torque curve then! shouldnt be long

[Fredoops]

he said if he lowers the vtec, there is a huge dip in power before the vtec kicks in.....

that doesnt sound right, at all

looky here;
http://www.hondata.com/reflash_tsx.html



this VTEC is lowered to 5000rpm, I dont see any dips, do you?

Oh and give this guide a read, it's for a Civic SI, which is also a K with the same Ivtec setup
http://www.8thcivic.com/forums/honda...de-tuning.html

[Fredoops]

Oh and give this a read ( i know it's for a Civic with 50 degree VTC but the general principle applies non the less):

http://www.8thcivic.com/forums/honda...de-tuning.html

General procedure for from-scratch tuning of the K-Series engines
- Set ignition timing to stock
- Set VTEC high (6500-7000 rpm) to tune low speed cam
1. Set both cam angle tables all to zero degrees and dyno tune ignition and fuel tables
2. Repeat dyno tuning of ignition and fuel tables with both cam tables all set to 15, 20, 30, 40, 50 degrees
3. Analyze dyno curves, then set cam angle table at each rpm to angle with best power
4. Dyno again with new composite curve (you may want to “bracket” by a few degrees up and down to see if optimal)
- Set VTEC low (2000-3000 rpm) to tune high speed cam, and repeat above procedure
- Set the VTEC crossover RPM
- Part throttle also needs to be tuned (part throttle = columns 7 and lower)
1. At part throttle/cruising (columns 2-7, 1500-4500 rpm) cam angle should be around 30 degrees. This will use EGR effect to reduce emissions and improve fuel economy
2. At higher rpms in part throttle, set angle to same as full load so that cam angle won’t go down during shifts.
3. 500-8100 rpm’s and columns 1-2 are the deceleration sections of the map and prefer lower cam angles (cam lobe centers are separated, valve overlap is minimal and there is little contamination of intake fuel going into the exhaust system).

^^ this is precisely why it takes all day to tune a K-powered Honda properly