You have several options really .

1/Run lower boost
2/Buy ME for as it has calibration for the IAT sensor
3/Fit a stock Maf sensor post turbo and seperate the wires out
4/ https://www.rx8club.com/series-i-do-...-turbo-164751/

 

1/How dare you
2/Likely my best option, as this will also let me log an external WB, I hope
3/ My second option, I just don't like hacking the wires and soldering direct to the MAF. Have you seen a plug I could mate up to the second MAF, besides a spare harness?
4/ I have read that thread and I don't believe it is an option for me because I have an '06 and the '06 ATR does not have an IAT calibration table.

 

1/ Heh . BTW if you are running that much boost on stock apex seals this actually IS the best option .

2/ perhaps yes - but it does have more bugs than the AP
3/ I believe you can buy the exact plug you need quite easily .

4/That was the beauty of that mod - no re calibration was necessary. I have been running that sensor for 4 years . It works just fine . Perhaps not as quick acting as others but good enough to do the job.

 

Ok, so I will go back and re-read your thread for option 4. If it didn't require recalibration that would actually be pretty sweet.

So on stock apex seals you think I am pushing too much?

Any links for the connector? I am coming up empty

 

This is my opinion :

*7-8 psi is the safe limit on a properly tuned car with stock apexs . A major detonation at this level will still kill the engine but is way less likely to happen.

*10psi is when it can all go **** up at the slightest issue . If you think you wont have an issue .............. you are an extreme optimist .

Connector - pretty sure someone i know sent me a link . Will ask again . Otherwise there is always the option of going to a wrecker .

 

Either an optimist or just plain nuts check out the AFR at the top end of this log...

Would love to get a link for that connector! Local wrecking yard wants several hundred for the harness.

 

Yeah ...... too lean .
I see that was before you changed the maf scaling - yet calc load still only goes to 190 and ambient is still low .

Think that IAT relocation will help with that .... a lot !


What is your elevation ? Could be a factor as well .

 

I have one, I found it in the ac delco catalog. Let me see if I can find a part #

 

Thanks gregs that would be awesome!

 

gregs! update us on your new set-up

 

brettus what kind of intake temps do you see with yours post turbo?
with having a higher temp observed, that decreased the calc load further.

I have thought about doing this mod but figured the temps would be too high and further complicate the tune. hence my first Q

 

This makes me want to build my car instead of the R1!

 

Continuing to smooth it out. No timing pulled this run and better performance up top

Oh and calc load peaked a tad higher...

 

what are you doing to "smooth it out"? adding fuel?

Posted From RX8Club.com Android App

 

Indirectly modifying via the VE table based on results from previous logs.

 

Sorry, missed your q about elevation: about 2000.

 

Sorry slash I wasn't able to find my original package to get the part number. I tried searching through the ac delco catalog online but no luck.

 

Haha I'll eventually update my thread but for now things are great. Don't want to sidetrack this thread.

 

Thanks for looking. I checked their site too and couldn't find it...

 

looking at the new log I don't think he is flatlining in the sense you think, I just think his car is holding a good calc load

 

Awesome!

 

Anytime I've seen a flat line it has indicated that calc load has hit the ceiling . I'm not 100% sure about how it is calculated but if we take the values of the tables we get :

IAT of 53.5deg.F = 1.05
Atm press at 2000ft = 92.8kPa = 0.92

1.05 x 0.92 x 200 = 193

Slash's actual max calc load is 190 so it doesn't line up exactly but there could be other factors involved . EG weather effect on atm. press , elevation was actually 2400ft

I would be really interested to know how he got earlier numbers over 200 . What was the elevation/temp and if the IAT and press. compensation maps were stock or not .

 

Well, since g/s is one of the factors in calculating load then my artificially high MAF scale would have led to a higher calculated load. At least that was my train of though.

Actually, max calculated load in the last log was 191.3, so while still not exactly 193, it seems close enough to make sense with the assumptions that other factors would cause this to deviate slightly, no?

Oh, and I made that log near the airport, which has a reported elevation of 2,376 feet.

 

Read my edit above . 2400ish feet lines up exactly !

 

Haha, posting at the same time! Oh and IAT and Baro comp tables are stock on the recent logs, but were not stock when MAF was not stock and calc load was up over 200%.