It's Alive! Finally Dyno Tuned!

98CobraStarLSC said:
Rich, do you have some vis of your 3500 stall????
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No. It was a bit much with the stock 3.07 gears. I have some issues with the 4.10/trac lok that went in over the weekend. It's making some godawful noises so I am not driving it until I bring it back tomorrow for the shop to fix what the problem is. Once everything is done I will get a vid and post it up since your not the first person that asked.
 
Rich88LSC said:
No. It was a bit much with the stock 3.07 gears. I have some issues with the 4.10/trac lok that went in over the weekend. It's making some godawful noises so I am not driving it until I bring it back tomorrow for the shop to fix what the problem is. Once everything is done I will get a vid and post it up since your not the first person that asked.
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are your gears whining? who installed them? I just did the install myself, it took some adjustment but mine showed a perfect pattern while on the bench..
 
98CobraStarLSC said:
I was running all stock ECU values with a check engine light. but i had all the mods to the intake was causing way more air and no more fuel!. i have the conical filter, cobra manifold with direct runners, and ported throttlebody..

Thats crazy that it was soo lean right? i was very suprised!
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I see you have a few differences for your MAF with the C&L tube and the LMS MAF. If those were in place before the tune then they were likely why your AFR's were off. Those additional airflow mods (intake, filter, TB) you mention will still pull additional aircharge through your MAF so the AFR's will not be thrown terribly off by those alone. They will slightly change as is the game when changing any variable in a combination. You start fiddling with either the MAF electronics or the housing and your AFR's can change a whole bunch. How much depends on what kind of changes were made.

Also the reason why your CEL shut off right after the reflash is because your KAM was cleared during the reflash. Of course if nothing else was changed then the code would come back again.
 
You are correct on the MAF, i did have the correct sampling tube for the stock injectors though, but yes, your right that did change the a/f ratio. The Keep Alive Memory idea, i drove it like that for around 850 miles, during that time, the c.e.l. actually turned off after about 100 miles, then came back on. I never had a code for No EGR Flow, which is weird because i have it blocked off! But it would not erase the o2 sensor codes because it was not just a one time occurance. If it just spike once, then threw the check engine light, then a few trip would clear it, it was a continuously lean reading telling the computer.

ILLS said:
I see you have a few differences for your MAF with the C&L tube and the LMS MAF. If those were in place before the tune then they were likely why your AFR's were off. Those additional airflow mods (intake, filter, TB) you mention will still pull additional aircharge through your MAF so the AFR's will not be thrown terribly off by those alone. They will slightly change as is the game when changing any variable in a combination. You start fiddling with either the MAF electronics or the housing and your AFR's can change a whole bunch. How much depends on what kind of changes were made.

Also the reason why your CEL shut off right after the reflash is because your KAM was cleared during the reflash. Of course if nothing else was changed then the code would come back again.
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98CobraStarLSC said:
You are correct on the MAF, i did have the correct sampling tube for the stock injectors though, but yes, your right that did change the a/f ratio. The Keep Alive Memory idea, i drove it like that for around 850 miles, during that time, the c.e.l. actually turned off after about 100 miles, then came back on. I never had a code for No EGR Flow, which is weird because i have it blocked off! But it would not erase the o2 sensor codes because it was not just a one time occurance. If it just spike once, then threw the check engine light, then a few trip would clear it, it was a continuously lean reading telling the computer.
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The whole sample tube sizing deal is rudimentary, at best, for ensuring AFR's are dialed in. I know C&L does that with some of their stuff but it is an outdated way to try to really try to dial in the WOT AFR's while whether you are running a stocker or aftermarket injector. Nothing can replace recalibrating it all in the tune itself. The minor advantage the sample tube sizing deal does have is that an end user can somewhat get their AFR's closer before getting the full blown tune. The only problem here is that I do not trust too many end users to accomplish that process the right way without hurting their engine. Hehe. Its all case by case basis there, as many people in here know.
 
ILLS said:
The whole sample tube sizing deal is rudimentary, at best, for ensuring AFR's are dialed in. I know C&L does that with some of their stuff but it is an outdated way to try to really try to dial in the WOT AFR's while whether you are running a stocker or aftermarket injector. Nothing can replace recalibrating it all in the tune itself. The minor advantage the sample tube sizing deal does have is that an end user can somewhat get their AFR's closer before getting the full blown tune. The only problem here is that I do not trust too many end users to accomplish that process the right way without hurting their engine. Hehe. Its all case by case basis there, as many people in here know.
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Thats right, the C&L maf and LMS maf are the same concept .. But nothing can compare to a retune.. But for injector changes, the sampling tubes are a fast and easy way to get you on the road quicker
 
98CobraStarLSC said:
are your gears whining? who installed them? I just did the install myself, it took some adjustment but mine showed a perfect pattern while on the bench..
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Turned out to be a rear wheel bearing decided to go the same day the gears were done. I think there is a little whine but I don't know for sure how much noise is actually coming from the gears. I'll see after tonight when I get to drive it around.
 
All gears make a slight whine especially high gears, they are never "silent" the better the setup the less noise but there is always a mild whine.
 
seriously man, mine are totally silent.. i adjusted the hell out of them, and got a perfect pattern. I also used ams oil.. maybe that oils is that good. haha..
 
hmmm. did you get it fixed then? noisy gears can be very annoying.. thats for sure!
 
Not yet I'm pretty frustrated with it at this point. I trust the mechanic and he's had it apart a couple times now. It's better but I'm not happy. Going to have a talk with him tomorrow about what exactly they are doing with it. If I feel like they did all they could I'm going to have to try another set of gears.
 
Rich88LSC said:
Not yet I'm pretty frustrated with it at this point. I trust the mechanic and he's had it apart a couple times now. It's better but I'm not happy. Going to have a talk with him tomorrow about what exactly they are doing with it. If I feel like they did all they could I'm going to have to try another set of gears.
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What brand of gears did you go with? That matters too. The cheaper gears do not have as tight of machining tolerances and thus will be noisier.
 
i went with all ford racing stuff for my swap from max at five star ford. They come with a more "shiny" or polished look on the gears which is supposed to decrease noise and ease break in .. i have had absolutely NO noise whatsoever.. just a driveshaft vibration.
 
98CobraStarLSC said:
i went with all ford racing stuff for my swap from max at five star ford. They come with a more "shiny" or polished look on the gears which is supposed to decrease noise and ease break in .. i have had absolutely NO noise whatsoever.. just a driveshaft vibration.
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I got everything from Max too. It will be back at the shop again because it is way to noisy. I already had a dynotech driveshaft from SCP.


Back on topic I did look into a dyno tune only one guy local could be bothered touching something other then a mustang. They wanted $300 for dyno tune $100 for new software from SCT for the Lincoln computer and $400 for the Xcal. I've since gotten a mail order tune from Lonnie and am happy with it. Down the road when a short runner Cobra intake and maybe new cams find there way on the car I will get a dyno tune.
 
for sure you will need a dyno tune when you put on the short runner or any cobra manifold. You thinking of getting the FR500 setup? i am looking very closely at it....
 
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