Infamous1 Posted January 26, 2009 Share Posted January 26, 2009 The boost control is poor, in some instances you are experiencing an overboost over 2psi. The overboosting seems to be the cause of your knock as well. It might help to get a learning view snapshot as well. http://www.romraider.com/forum/topic2772.html Link to comment Share on other sites More sharing options...
Coyote_Lips Posted January 26, 2009 Share Posted January 26, 2009 Subscribed ... very curious to see how this vf52 turns out:rolleyes: Yup... Link to comment Share on other sites More sharing options...
LittleBlueGT Posted January 26, 2009 Share Posted January 26, 2009 05Boost, Your waste gate duty cycles are all off, you need to set them at a 10 point span between the high and lows. Plus you need to limit the max range of the duty cycles since you are still overboosting. Keep you turbo dynamics close to 0 if you are monitoring it. You should also log your A/F ratio's, I bet your running lean and creating knock due to high boost and not enough fuel. I know what you are saying, but it sounds like you are just regurgitating COBB's papers. The above will work, but it is better to understand what the td tables do, then they can be tuned for better. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
testes1010 Posted January 26, 2009 Share Posted January 26, 2009 I recalled your dynochart having that odd curve to it as well, I thought it looked funky then. Now we know why.... http://i209.photobucket.com/albums/bb20/mymax97/photo-2.jpg Link to comment Share on other sites More sharing options...
BLKGT5 Posted January 26, 2009 Share Posted January 26, 2009 I found them to be somewhat helpful to follow some of the Cobb suggested tips. I just got done tuning in my AVO WG on the stock VF-40 and it night and day versus using the stock ST2 maps. It was impossible to pre-load the WG properly without modifying the tables. I based some of my tuning around those tips and now I have great spool, properly target boost levels, and consistency with safe operating ranges. Link to comment Share on other sites More sharing options...
LittleBlueGT Posted January 26, 2009 Share Posted January 26, 2009 I found them to be somewhat helpful to follow some of the Cobb suggested tips. I just got done tuning in my AVO WG on the stock VF-40 and it night and day versus using the stock ST2 maps. It was impossible to pre-load the WG properly without modifying the tables. I based some of my tuning around those tips and now I have great spool, properly target boost levels, and consistency with safe operating ranges. Sounds great. Now if you want to learn more, go to Romarider and learn about the td tables. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
BLKGT5 Posted January 26, 2009 Share Posted January 26, 2009 I agree, I still have lots to learn and need to dig into the turbo dynamics tables more and only know you should keep it close to 0 around target levels. I do know I wouldn't feel safe running his current settings with a VF-52. Link to comment Share on other sites More sharing options...
testes1010 Posted January 26, 2009 Share Posted January 26, 2009 I do know I wouldn't feel safe running his current settings with a VF-52. I agree. Link to comment Share on other sites More sharing options...
Spec B Posted January 26, 2009 Share Posted January 26, 2009 I just got done tuning in my AVO WG on the stock VF-40 and it night and day versus using the stock ST2 maps. It was impossible to pre-load the WG properly without modifying the tables. I am thinking about upgrading the WG on my stock VF- 40, was it a worthwhile mod? I am still on fence about this upgrade on a stock turbo. Link to comment Share on other sites More sharing options...
testes1010 Posted January 26, 2009 Share Posted January 26, 2009 I am thinking about upgrading the WG on my stock VF- 40 IMHO, aftermarket WG cost way too much when the 'helper spring mod' costs ~$10, just my opinion though. Link to comment Share on other sites More sharing options...
Infamous1 Posted January 26, 2009 Share Posted January 26, 2009 IMHO, aftermarket WG cost way too much when the 'helper spring mod' costs ~$10, just my opinion though. Link to comment Share on other sites More sharing options...
Ridgeracer Posted January 27, 2009 Share Posted January 27, 2009 Better off with a Prodrive EBCS. Safest bet... "Gimme mines Balboa...Gimme mines".....Clubber Lang - Mr. T Link to comment Share on other sites More sharing options...
AWDxBOOST Posted January 27, 2009 Share Posted January 27, 2009 a run through the gears is pretty worthless imo boost seems a tad high as ppl said, but i also need to see your wdc and injector duty cycle...knock correction seems okay Link to comment Share on other sites More sharing options...
BLKGT5 Posted January 27, 2009 Share Posted January 27, 2009 I am thinking about upgrading the WG on my stock VF- 40, was it a worthwhile mod? I am still on fence about this upgrade on a stock turbo. If you have the money, sure its a good upgrade. I don't care much for springs attached to wg arms and such. I'll spend a little cash to make sure it always works as intended on my ride. It holds boost in high rpms, it's more consistent in keeping the desired boost levels and doesn't fluctuate like the stock setup. I had to run 90% WGD to get close to the boost levels I wanted with the stock setup and still dropping to 10psi at redline. Now I can achieve the boost levels at 20% WGD and hold 13psi at redline which is the limit of the turbo with the avo wastegate actuator. PS. Don't get it unless you can tweak the WGD maps IMHO since I don't care much for MBC in assisting in pre-loading the actuator properly. Link to comment Share on other sites More sharing options...
05Boost Posted January 27, 2009 Author Share Posted January 27, 2009 a run through the gears is pretty worthless imo boost seems a tad high as ppl said, but i also need to see your wdc and injector duty cycle...knock correction seems okay Taken one more log tomorrow since i switched back to stock muffler then infamous is going to give me a good e-tune. Link to comment Share on other sites More sharing options...
Spec B Posted January 27, 2009 Share Posted January 27, 2009 Taken one more log tomorrow since i switched back to stock muffler then infamous is going to give me a good e-tune. Thats all you need.. Link to comment Share on other sites More sharing options...
05Boost Posted January 27, 2009 Author Share Posted January 27, 2009 haha exactly why im doing it. Link to comment Share on other sites More sharing options...
05Boost Posted January 27, 2009 Author Share Posted January 27, 2009 uploaded a log really quick since i put the stock mufflers back on. Sending the rom to infamous tonight around 6 for the etune. Cant wait. Link to comment Share on other sites More sharing options...
Spec B Posted January 28, 2009 Share Posted January 28, 2009 keep us posted, I am anxious to see what infamous can do with that turbo.. Link to comment Share on other sites More sharing options...
05Boost Posted January 28, 2009 Author Share Posted January 28, 2009 going to install the new rom tonight and have a new log for you guys in a couple hours. Link to comment Share on other sites More sharing options...
05Boost Posted January 28, 2009 Author Share Posted January 28, 2009 opps no logs. infamous wants to wait till eveythings tweeked and it just started snowing. Link to comment Share on other sites More sharing options...
keysersoze Posted February 1, 2009 Share Posted February 1, 2009 Link to comment Share on other sites More sharing options...
05Boost Posted February 1, 2009 Author Share Posted February 1, 2009 i have logs but waiting until the final retune is done to post. Since he is still working on it. Going at about a new tune a day/day and a half. So thinking by friday new log will be up. Link to comment Share on other sites More sharing options...
keysersoze Posted February 11, 2009 Share Posted February 11, 2009 Link to comment Share on other sites More sharing options...
05Boost Posted February 11, 2009 Author Share Posted February 11, 2009 computer had a virus. Just send a new log earlier today. Waiting for the new rom back Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.