Let the tuning begin....

[komet/13]

Okay. I've got my ZT-2 installed with wideband O2 (ended up getting a replacement for the bad O2 sensor, and it worked instantly) and boost using the ZR2 gauge, and I got the boost dialed in to peak at 24.4lbs in fourth gear. I'm finally ready to start with the tuning!

Can you guys go ahead and post some general guidelines to follow in beginning to tune? Also, please explain how the main chart and the RPM chart correlate.

[TTP Engineering]

How about you datalog the car with 4th gear 2500-7000rpms pull 100% throttle and send us the ZDL file so we can analyze it for you and we will help format the logs for display to the forum.

[komet/13]

Sounds good. I'll do some logging this weekend and post back.

[komet/13]

Just sent email to TTP with two files from ZT2.

[EvoX330]

Need help getting this zchip tuned in better with different maps. I thought the car pulls better after the boost controller,zchip and harman motive intake but after 4 runs the she will do is a 13.62@ 103.4 which these are stock numbers but the mph is higher.

[elpoole]

Hey Komet/13 did you get the modified maps back? How does she run now?

EvoX330, did you finally gain more HP/TQ?

[TTP Engineering]

Just sent email to TTP with two files from ZT2.

Been working with Komet13 as he installs the zeitronix wideband.

[TTP Engineering]

Need help getting this zchip tuned in better with different maps. I thought the car pulls better after the boost controller,zchip and harman motive intake but after 4 runs the she will do is a 13.62@ 103.4 which these are stock numbers but the mph is higher.

If the mph is increasing, it means the car is more powerful. A high E.T. indicates a need for driver improvement.

[komet/13]

All ZT2 problems have been solved for awhile. My O2 sensor was bad. Also, we got hit with snow over the last couple of weeks.

1. I sent Scott a copy of my ZChip basemap and a ZT2 log from 1/19.

2. TTP analyzed that data, and then sent back a new map named: zchip_komet_eflash_map1_rpm1

3. Today I sent Scott back new ZT2 datalog from 0207.

Hopefully, Scott can post up all of this data and use it as a teaching tool for the forum. Kind of a remote tuning process, since I am, unfortunately, nowhere near Orlando.

I'm hoping to see what numbers we are shooting for ideally, how the rpm tables interact with the load tables, what are the danger zones, etc.

Here are my mods:

Perrin FMIC
Perrin turboback
Perrin turbo inlet
Harman Motive UICP
ETS LICP
Forge Unos MBC
Works Drop In
500 feet elevation

[TTP Engineering]

http://i4.photobucket.com/albums/y117/dsm95hybrid/KOMET12_BASEMAP.jpg

http://i4.photobucket.com/albums/y117/dsm95hybrid/komet12_map2.jpg

http://i4.photobucket.com/albums/y117/dsm95hybrid/KOMET12_CURRENTMAP.jpg

http://i4.photobucket.com/albums/y117/dsm95hybrid/komet12_map1copy.jpg

[TTP Engineering]

All ZT2 problems have been solved for awhile. My O2 sensor was bad. Also, we got hit with snow over the last couple of weeks.

1. I sent Scott a copy of my ZChip basemap and a ZT2 log from 1/19.

2. TTP analyzed that data, and then sent back a new map named: zchip_komet_eflash_map1_rpm1

It looks like the tune is pretty solid for a reliable safe powerful tune.

3. Today I sent Scott back new ZT2 datalog from 0207.

Hopefully, Scott can post up all of this data and use it as a teaching tool for the forum. Kind of a remote tuning process, since I am, unfortunately, nowhere near Orlando.

We reviewed the datalogs and made some adjustments to spoolup fueling and added a little fuel across the rpm band. It appears that boost was a bit lower on the 2nd log.

I'm hoping to see what numbers we are shooting for ideally, how the rpm tables interact with the load tables, what are the danger zones, etc.

Here are my mods:

Perrin FMIC
Perrin turboback
Perrin turbo inlet
Harman Motive UICP
ETS LICP
Forge Unos MBC
Works Drop In
500 feet elevation[/QUOTE]

The only power adders we see in your mod list are the Forge UNOS and ZChip unfortunately, but we're sure it gives your car a different look.

[komet/13]

Scott,

Thanks for posting this info up.

Can you send a new map, making a few more tweaks, to see if we can again to improve it a bit more?

After the boost kicks in, isn't the intial drop down into the 10s still a bit rich (3k-4.5k range)? What is the highest safe AFR I should see under boost? How are you deciding when to make adjustments on the load table versus the RPM table?

I had not touched my mbc since the previous January run, but we had a warm snap this week from the 20s in January up to 60s yesterday; I'm guessing that probably accounts for the pound less in boost.

I'll tweak my mbc today. What do you recommend I set it to peak at? Intially, I had it set for 24.5.

Thanks for your help.

[TTP Engineering]

Scott,

Thanks for posting this info up.

Can you send a new map, making a few more tweaks, to see if we can again to improve it a bit more?

After the boost kicks in, isn't the intial drop down into the 10s still a bit rich (3k-4.5k range)? What is the highest safe AFR I should see under boost? How are you deciding when to make adjustments on the load table versus the RPM table?

I had not touched my mbc since the previous January run, but we had a warm snap this week from the 20s in January up to 60s yesterday; I'm guessing that probably accounts for the pound less in boost.

I'll tweak my mbc today. What do you recommend I set it to peak at? Intially, I had it set for 24.5.

Thanks for your help.

The initial drop in AFR insures that any chance of detonation caused by a boost spike is reduced by cooler EGT's. When you first came to us you were interested in quarter mile performance, an area unaffected by this area of the rpm range.

We really would not like to see exceeding 11.5AFR on 92-93 octane for now at 25psi or so spike in boost. There are a number of NON-ZCHIP cars in Puerto Rico continuing to blow engines with the aluminum blocks.

[komet/13]

When you first came to us you were interested in quarter mile performance, an area unaffected by this area of the rpm range.

.

Must have me confused with someone else. I am more interested in a good overall tune. I've never run the quarter before (in any car); not to say I never would, but I'd rather save my clutch. I will be much more likely to road course or possibly autocross a bit.

That is why I would like to see a bit more early torque for exiting tight corners and overall driveability.

So no more room for improvement in the overall tune? I am just wondering what I am missing out on and how far off I currently am from what I would be able to get in a custom tune at your shop. Wish I lived closer to Florida.

[TTP Engineering]

Must have me confused with someone else. I am more interested in a good overall tune. I've never run the quarter before (in any car); not to say I never would, but I'd rather save my clutch. I will be much more likely to road course or possibly autocross a bit.

That is why I would like to see a bit more early torque for exiting tight corners and overall driveability.

So no more room for improvement in the overall tune? I am just wondering what I am missing out on and how far off I currently am from what I would be able to get in a custom tune at your shop. Wish I lived closer to Florida.

Ah yes EvoX330 was commenting on drag times. Not even sure who that actually is.

This whole cross forum thing is confusing. Is komet13=ksattic on evom?

[komet/13]

This whole cross forum thing is confusing. Is komet13=ksattic on evom?
Nope; not me. My handle is the same on both forums. No problem.

Don't get me wrong; I don't want a dangerous tune. I just didn't expect that after one tweak it would be in an ideal spot. If it were on the dyno, it would take several runs to get dialed in; right? Also, that's why I invested in the ZT2, so I could learn myself to do a safe tune.

Is there still room for at least some fine tuning?

I really am interested in programming it myself, but I am trying to be careful hold off until I can learn a bit more. Maybe you could put together a guide with some general ranges to shoot for in different spots of the rpm range under boost and what pitfalls to avoid?

Also, I turned up the forge 4 clicks today, and the boost today peaked at 25.3 pounds (is this too high?). Also, temperatures here dropped down again about 20 degrees. Unfortunately, my laptop battery died before I got home and hadn't named the file yet, so I lost the datalog. Does that extra pound of boost make a big difference in the AFR? If so, let me know, and I can send a fresh datalog when I get another opportunity.

I don't want my car to end up like some of those in Puerto Rico. Man, that mofongo must make you crazy (or the 151)!

Cheers

Komet/13

[TTP Engineering]

Anyhow, we have run them to 25.5psi. We really don't recommend higher on pumpgas.

We recommend lower boost levels on those without the proper tools to monitor and datalog AFR.

Its hard to improve on the tune without changing parts around, seeing it change the response and AFR of the car before taking counter actions to adjust the ZChip mapping.


As far as tuning.

MAP- mapping affects overall MAP sensor input regardless of anything.
RPM- are additional adjustments based on each rpm input x100 (instead of x500 like flashes!)
VOLTAGE CUTOFF- for V2 Zchips affect the minimum boost/voltage that has to be reached in order for RPM adjustments to be taken into account. This will also insure that under decelleration that RPM adjustments are ignored.