Okay here goes, 1000 miles on the car, 1100 in mods and here are the results 
The car runs like a banshee!
The car runs like a banshee!
UPR and Dyno Today
- Thread starter Z06_2002
- Start date
Awesome numbers!!! :lol:
COBRyan
Puts Out For Mod Money
get a few more miles on that beast and your numbers will surely be much higher!! :beer:
Awesome numbers!!
:beer:
What you expected?
Good temps for Vegas..
Mac03Cobra
What you expected?
Good temps for Vegas..
Mac03Cobra
Thanks everyone.
Mac03Cobra, actually I expected less. For some reason in Vegas we tend to dyno somewhat less than in California, this is strictly a subjective observation on my part, and the comparison is based on what I have seen between Z's here locally and in CA.
Mike @ Silver State Motor Sports generally makes fun of my Z, I think it dynos around 371, 356 RWHP/RWTQ SAE corrected. Well today he was in utter amazement on how well the Cobra performed, not an easy guy to impress since he has built some wicked machines.
:beer:
Is everyone getting that much torque drop on the high end after a pulley swap? That seems out of whack considering my stock pull the torque curve looked like this:
______________________________________
It was unreal.
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It was unreal.
Do you see how your torque is beautiful up until 3000rpm and then it starts to drop rapidly. This is because your PCM is pulling mucho timing. I had the exact same problem after I tried out Diablo program XHP2. If you have that same program, chances are you are losing around 6-7 degress of timing from 3000rpm on up. If you have an Autotap, hook it up and make a couple of full throttle runs in 3rd gear on the highway while logging timing advance. That should verify what I think is happening. If I'm right and you get a new program (get the one that 46stang has) you'll keep that nice torque pretty much across the board (HP might change a little but mine didn't).
If you don't believe me, do a search here and you'll see that others have had the same characteristic torque curve with Diablo program XHP2. I think that coleman was one of the people that I pointed this out to. I even posted my timing charts that I logged with the chip as well as my dyno graph.
Best of luck,
MJ
If you don't believe me, do a search here and you'll see that others have had the same characteristic torque curve with Diablo program XHP2. I think that coleman was one of the people that I pointed this out to. I even posted my timing charts that I logged with the chip as well as my dyno graph.
Best of luck,
MJ
It was unreal. [/B][/QUOTE]
Thanks MJ,
I do have autotap but it is for a chevy. I have no reason to doubt you, you are very well respected on this forum and produce some of the most knowledgeable posts I have seen. I would like to pose a question to you if I may. When they burned my chip I requested they take into account the 91 crap gas we have here and a DA of 4500 would that have any effect on the pulling of the timing? I have a Z and I use Autotap and LS1 edit timing is pulled severly on crap gas, when I mix 50/50 91/100 timing goes back up. I appreciate all your help and suggestions and welcome your response.
Thanks MJ,
I do have autotap but it is for a chevy. I have no reason to doubt you, you are very well respected on this forum and produce some of the most knowledgeable posts I have seen. I would like to pose a question to you if I may. When they burned my chip I requested they take into account the 91 crap gas we have here and a DA of 4500 would that have any effect on the pulling of the timing? I have a Z and I use Autotap and LS1 edit timing is pulled severly on crap gas, when I mix 50/50 91/100 timing goes back up. I appreciate all your help and suggestions and welcome your response.
Thanks MJ,
I do have autotap but it is for a chevy. I have no reason to doubt you, you are very well respected on this forum and produce some of the most knowledgeable posts I have seen. I would like to pose a question to you if I may. When they burned my chip I requested they take into account the 91 crap gas we have here and a DA of 4500 would that have any effect on the pulling of the timing? I have a Z and I use Autotap and LS1 edit timing is pulled severly on crap gas, when I mix 50/50 91/100 timing goes back up. I appreciate all your help and suggestions and welcome your response. [/B][/QUOTE]
Seriously, don't take my or anyone else's word on it. Do the search on here and :read:
The timing pull is very abrupt and not what I'd consider ideal. For bad gas, I'd pull timing all across the board not just from 3K up. What I found with this program is that *too much* timing advance is programmed and the PCM pulls some due to knock.
Best,
MJ
P.S. If you need anything, you can email me at: [email protected]
yes, mjchip did point this fact out with my dyno...
http://www.fragfest.biz/~coleman/cars/2003/cobra/
the folks at dallas mustang couldn't even tell me what program they used on my chip! :cuss:
which program should we be running with just a basic pulley change? XPH1?
http://www.fragfest.biz/~coleman/cars/2003/cobra/
the folks at dallas mustang couldn't even tell me what program they used on my chip! :cuss:
which program should we be running with just a basic pulley change? XPH1?
Coleman,
Your car looks awesome, great website. My dyno guy can reburn chips so after my car breaks in a little while I think I will do a widband o2 reading and have him tune it to this area for optimum performance. It was nice of mjchip to chime in and point this out since I am trying to get up to speed on the Ford products, haven't owned too many Fords.
A little off topic, I have always dreamed of kind of playing with another car and then hammering it when possible and just pulling away. Well tonight there is a nice kid to the left of me and wants to run his GT, newer one. We have a clear shot one way no traffic, I let him take off I just match his front fender, about 1/2 way through second I punch it letting it all hang out, quite an impressive arsenal these cars have.
:beer:
Your car looks awesome, great website. My dyno guy can reburn chips so after my car breaks in a little while I think I will do a widband o2 reading and have him tune it to this area for optimum performance. It was nice of mjchip to chime in and point this out since I am trying to get up to speed on the Ford products, haven't owned too many Fords.
A little off topic, I have always dreamed of kind of playing with another car and then hammering it when possible and just pulling away. Well tonight there is a nice kid to the left of me and wants to run his GT, newer one. We have a clear shot one way no traffic, I let him take off I just match his front fender, about 1/2 way through second I punch it letting it all hang out, quite an impressive arsenal these cars have.
:beer:
Z06_2002: Yea thats the california crap gas file! I have a flip chip on my car and your tq curve looks identical to the CA program i have. Ask for the other file(non california)!! I was unsure if crappy 91 oct would be ok, so i have both files. I have been running the non califonia file for a couple of months now and absolutely no pinging! I gained 30-40rwtq in some spots on the tq curve with the other program!! nice numbers btw :beer:
Leon
Leon
46stang,
Thank you for bringing me up to date on the chips. It is great to know that there are other options in tuning with the chip. I appreciate the help!
:beer:
Thank you for bringing me up to date on the chips. It is great to know that there are other options in tuning with the chip. I appreciate the help!
:beer:
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