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DrBacon

Honestly I still have the same problem as you too. I can tell Sebastian almost seems a little frustrated, we've had to go down in timing from the base map to prevent ignition correction (usually it's the other way around, lol). He's brought up e85 a couple times now but unfortunately it's just not possible in my area, I would have to get barrels delivered, and I daily drive the car for the most part so it's just out of the question. The car goes on a dyno on Friday however I honestly don't expect it to make much power with the amount of timing it is running, I'd guess 450whp max. Sucks because this kit has so much potential just to be handicapped by bad availability of fuel.

Senna-F1

So your tuner is frustrated, and my tuner is "yay! more boost". Hmmm. If its honest boost, and not just some bad restriction, or cam issue, then it should be a good thing. People normally have to buy a different pulley to get more boost, and the result is MORE power, not less. So I wonder why he's frustrated. Because hes pulling timing only after 10 psi to keep it from knocking? And pulling so much that he feels it negates the increase in boost and ultimately will make LESS power?

Has Seb suggested getting a knock sensing tool to figure out if you're getting REAL knock? The tools from Plex tuning, Tuner Nerd, etc ? Im considering it, because I think my car too was correcting timing more than what my tuner was expecting from my setup. An maybe my tune also has pulled timing compared to other tunes, Im not sure. Update us with the dyno!

DrBacon

I definitely over exaggerated Seb being frustrated, it's more of a joke as to how much effort has gone into trying to get the timing to make sense. Really I'm not sure what's going on with the car yet. I've done close to 20 data logged WOT pulls now, AF/R is good, boost is good, just timing/knock is being seemingly strange. I've used an octane booster (boostane) at a pretty decently high concentration and it made no change with the ignition correction. At first it seemed like maybe the knock sensor was possibly picking up some false positives, but when tested with a low timing map the ignition correction almost entirely went away. Most of the ignition correction that happens is around 5k rpm, before full boost. The knock sensor seems to be the most happy around 9 to 10 degrees of timing.

The reason for the low dyno estimates is because I've actually already had it on a dyno so I know ROUGHLY what it will be making, but for various reasons I'm getting it re-done at a different shop this time. It was a half assed dyno day type of deal where they didn't actually log a complete pull, graph cut off at 6,800rpm.

BOLIO 671

I feel u on the availability for fuel man. In the same boat in our area. E-85 is definitely off the table here due to our extreme humidity. We also only have 91 octane as the highest fuel source at the ⛽️.... even worse news is our race shop that usually ships in race gas/higher octane fuels from VP Racing no longer brings in VP products due to their supplier no longer being a VP distributor....so now the best grade available to us is F&L 100 Octane. Haven’t used this fuel source yet as I’m still doing research on it. Some of the guys that I know who switched out their tunes from VP MS109 to the F&L 100 have seen a 10-15% power loss.

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2013 Nismo Z34 / FI TT #091 / IG: @lilzilla_z34

TopgunZ

Is water/meth injection an option? One of my customers is making 560whp on that without a RFS.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM