[alanb]

i have the toda set up on my euro ctr and found that lowering my octane to 95 ron(equivalent to ur 91) did improve performance dramatically

runs quiker, smoother quieter

reckon ur right the toda is optimised for the lower octane

took me only 2 mths to discover this !

highre octane is slower burning and can lose hp

toda also lowers the dynamic compression ratio so high octane is not needed indeed it is sometimes recommended to compensate for this with the lightweight head gasket which then increases compression ratio and perhaps if u have this mod as well u might need to run the higher octane?

all the toda testing was done without the thin headgasket i belive

stanwan has the lightweight gasket and i duplicated his flash but i feel i need the lower octane to compensate

octane rating is actaully an issue wen u start to increse hp with these bolt ons as the timing etc is optimised for one type of fuel and we need all the ponies we can get

its something that tends to be overlooked

check with doug if all this makes sense

my butt dyno definitely confirms though and im getting a much stronger push in the back effect from high accel thru the gears

 

[K20A2]

I'm really interested in the k-pro however probably for a different reason then most people. I am installing the GReddy turbo within the next month and am undecided if I want to keep the e-manage or get the k-pro. My reason for wanting the k-pro isn't only that I want to extract as much power as possible but for the fact that I'll have a perfect tune, be able to adjust boost at any time, and not use a piggy back so I won't have to worry about the lean issue. For the people who have tuned with the k-pro, how hard was it to tune it. Would any knowledgeable technician be able to do it? There are a couple shops around here that have done many cars. I guess my question is really would getting the k-pro protect my motor more because of the open/closed loop control and having the perfect tune for my car versus a preprogrammed piggy back system?

There is only one place that I know of that has done it in Flordia. Gains were really good but it took about a day and 62+ dyno runs. After seeing the dyno this past weekend, it still could use another day or so of tuning and it would really smooth out the numbers.

Very very few people will be able to tune this ECU effectively for the next couple of years. It is pretty complex and pretty time consuming to get it perfect. I will be sharing a lot more information over the next couple of days once I get caught up with my emails.

 

[K20A2]

Ok, I've been following this thread for awhile and it's time for me to chime in. I have Spec A's right now. I plan to upgrade to N2's very shortly along with the k-pro as well. I am under the assumption that the toda flash is tuned for 91 octane? Could I actually be losing hp by running 93 octane? Would it be a difficult process to tune it to 93 octane? What can go wrong if the timing is advanced too far? Sorry about all the questions, I just need some concrete data before I purchase. One more thing, can a list of the east cost tuners attending the seminar be posted just for future tuning reference.

I am not sure what it is tuned for but my guess is at least 91 but probably 93. Tuning for 93 is not going to be any different than tuning for 91 or even 89 if you want. Advancing the timing can cause knock or even worse, detonation.

I am not sure about the guys going to that east coast seminar, but make sure they did and that they have a dyno. Also, don't let them use your RSX first.