Timing numbers are not or should not be different from one unit to the other. If it is then there is a problem. Many people using a stand alone do not take the time to verify the ignition timing, in that case the numbers in the tables mean nothing as they are not actual. You have to adjust the timing to so the crank reference and timing in the ECU match. Some ECU's need to be further adjusted for drift at higher RPM's, like Haltech.

We've checked timing on a few stock ECU's and have never found a variance.

 

I tried reading the whole thing but couldn't force myself.

So you guys want to prove the stock evo 9 turbo is better than the hks or bbk? why don't you do a back to back test with NOTHING changed but the turbo? Ivey did the test, hks turbo vs stock evo 8 and the result was that the hks turbo spooled quicker and made more power...

A big percentage of the hks turbos running e85 are making between 480 and 500whp... which makes it common. No one can say that 480-500whp are common on stock evo 9 turbo's running e85.

Anyway, good luck with "whatever the purpose of this thread is"

 

@darwin I don't think the purpose of the thread was to say the stock turbo is better than the others, I think they are simply trying to show the potential of the stock piece. Aside from power, the thread clearly shows the stock 9 turbo is capable of 11 second passes...it's all to be taken relative, i.e. why spend the money if your goals are within reach of the stock piece. If not, at least you're well informed to go in the direction of the hks or bbk.

 

The thread at this point is to show what the stock turbo is capable of. From average mild bolt-on setups to setups that just make great power for what ever reason.

Don't try to make it anything more, again.

David, just curious, have you verified timing comparisons at like 5k RPM or higher? I'm not sure how the AEM handles the signals any more, but there use to be some timing belt stretch parameter or something since on the 1G it was using the CAS. With how the cam angle sensor causes serious problems with the AEM when it goes bad, I suspect they are using the cam angle sensor to some extent to figure out crank position, which means there may still be some susceptibility to T-belt stretch timing drift.

 

ignition values will also change with a change in combustion chamber shape, if it has been ported etc. A Nissan GTR head ported needed 4 degrees advance taken out of the map, and it made 80kw (107hp) more power on the same boost.

 

Weird timing though
Again, good luck

 

We are talking about actual timing values RSMike, not what the engine needs to make power or it's ability to resist detonation. We are talking about whatnthe ECU says the car has and what is measured with a light at the crankshaft/damper.

Yes 03white, we've looked at the timing numbers at high rpm, past 7,000 rpm although standing there doing it sucks, makes your butt pucker! Haha