Indy - did you always shift this high, or did you start doing so at some point in the cycle? Seems like the common wisdom was to shift the stock turbo at 7000 RPM, and maybe a bit under that for 1-2 as there was no power up top.

Tom

 

Tom, 9sec9 looked at the data and we made adjustments as we went. He tells me what numbers he wants to see and I do my best to hit them. This thing pulls all the way to the high 7000's.

 

This is the exact map we use on Indy's car at the track. The timing is set in certain places for specific events in the run. A good example would be 14 at 7250 and 200. Anyway, this is the same map we use/used for the 12.0 runs. Each trip to the track varies just a bit based on baro/temp etc. We monitor every run very closely so it's never too far from our 'center'. Hope this helps you understand what I was saying.



Although the above map is slightly more current, the previously posted 'shift' logs show what happens during and after the shifts. Notice the above '8's in the high rpm low loads and WHERE the timing needs to be at about 5500/260. Voila, no knock and timing is there, '8' degrees. That remained true as long as Indy shifted slow and we got into vacuum between shifts. As the shifting got faster, I had to lower the timing at higher loads to meet our target of where I wanted the timing AFTER the shift was complete. It really gets interesting when RPM goes UP during the shift and the ECU sees HIGHER loads than BEFORE the shift. I adjusted that some too. I said I would post the map, and there it is.

 

Here's a different run showing a shift where the timing only moves a few degrees from max rpm and the next gear at lower rpm and higher loads. I like to keep the maps as smooth as possible without the peaks and valleys you sometimes see in a tune that's been 'hurried' through. Sometimes a change in one area requires a complete remake of the 'blending'.

 

Very nice. Its nice to have a tuner who releases this kinda stuff to help everyone else out. I took heed to your advice and made some changes to my maps. Haven't been able to log much but hopefully it should help me out.

GL on breaking 11's.

 

9sec9 is all about helping people out. He has done two 91 octane tunes in Oklahoma and both cars are running better than ever, one running into the 11's the first time to the track. Thanks for the support, Indy

 

Thanks 9sec9 that helped a lot actually. I was just curious on what you were meaning. But I really think it would be cool to spend a day with you two. Ha ha learn to tune better and learn how to shift in milliseconds.

 

Big on the map sharing and info.

 

Congrats on all the progress Indy! I have been following this thread since day one, and was blown away with how far you got with so little! It goes to show what a GREAT driver and GREAT tuner can do! Speaking of the guys in Oklahoma who were lucky enough to have 9sec9 tune their cars, I happen to be the proud owner of one of those cars. And let me tell you, the car is a completely different animal now! 9sec9 is the man! I dropped 5 tenths off my BEST previous time with his tune, and that was like you said, on STRAIGHT 91 oct! Anyhow, enough of me jackin yer thread, congrats again, and good luck next time you hit the track!

 

Thanks for the comment RedIXRS09. We arent throough with your car yet. Mid 11's soon. All the parts are there to make it happen. Hope to get back to the track with you soon. The 'other' 91 tune is going to the track this weekend and I'm hoping to make it out to help him. If we're successful for HIS goals, he'll get kicked out.

 

hey guys quick question. i have bumped my boost to 25psi and adjusted to where i'm not getting any knock but i noticed that my timing is a bit more than your map. will lower timing help maintain boost up top? i also have a mivec map that fathouse helped me with.

 

These maps were built to run knock free at 26.5 psi. It's surprising how 1.5 psi can create the onset of knock at peak torque. On one of the 91 tunes, a small change in boost would quickly get a 1 -2 count at 6150-6250 rpms. The logs show that we were only running about 25 psi on this run. I've used the term 'target psi' because we don't always meet the 'target' on the first few runs down the track. My experience is that the timing map doesn't have a noticeable affect on boost. The Mivec map, however, does.

 

oh ok makes sense. i think at my peak load i'm at 4* then it works it self up.

 

I've been curious about this as well but hadn't had a chance to ask my tuner.

Often I hear people speak about how retarded timing can help spool in areas of the map. But I've always discounted the notion just because it seems logical to me, that the differences in exhaust gas volume between say 15 and 10 degrees advance would not really be significant enough to outweigh the power loss.

Speaking of knock 9sec9.. what do you think about John Banks asserting a bit of knock in the map actually produces the best power.

 

You and josh are going out again? god i wanna be there....hopefully ill get all my new modifications on soon and get a tune from you!!josh's car is running great