Please help me beat a stock 2v mustang
06-12-2013, 08:48 PM
#41
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Did youo order your nelson tune? Did you order it for all the mods? you should think about having a tune done at a local shop with a dyno who really knows what they are doing as everyone else has suggested. You should be making over 400 HP at the wheels with those mods fairly easily... but until you get your fuel system figured out I wouldn't even bother wasting the money for dyno time... it will all have to be redone. A walbro 255 should do it for the pump... and I'm not sure, but I would guess 42# injectors would do the trick. You want marine 8.1 injectors.
Good god its going to feel scary fast if you think it runs well making 240 at the wheels... it will make literally almost 200 HP more when its running right. I'd look into an intake manifold swap with the RPM's you will be turning with that 6.0. You will see great gains up top.
Good god its going to feel scary fast if you think it runs well making 240 at the wheels... it will make literally almost 200 HP more when its running right. I'd look into an intake manifold swap with the RPM's you will be turning with that 6.0. You will see great gains up top.
well today i changed the plugs and noticed they were really black like the picture shows in the pic it looks like they're oily but they're actually pretty dry just look like they have a lot of carbon build up. does that sound right? my truck smells like its running pretty rick could that cause it?
06-13-2013, 01:21 PM
#43
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Judging from that dyno graph, you have some other issues going on. The waviness of your hp curve would indicate an ignition or valvetrain issue. What kind of valvesprings are you running and how many miles on them? If they have alot of miles they could be too weak to control the valves causing it to break up at higher rpm. That MS3 cam has alot of lift so it requires a good spring to control the valves. Are you getting any codes thrown? You really need to get a scanner on it and do some data logging.
My. 02.
Mike
My. 02.
Mike
06-13-2013, 04:23 PM
#44
with my stock injectors in efi live it said my duty cycles where at 98% at 6100 rpms, i then upgraded to marine 8.1 (42 lbs) it lowered those numbers to 63 ish % and that is with the mods in sig
I had to get three tunes from nelson to get it right my high rpms where about 13.4 afr which is i guess lean for my setup, he managed to get me down to 12.9-13.0 constant. which the truck ran awesome after that. Mail order tunes can be a pain nelson is awesome with working with people- but he is a busy man and have to wait sometimes
your tire size and gear IMO seem more drag getting it from a dig to your 1/8 or 1/4 time. you shouldnt pull hard up top with a higher speed, if those gears where lower i believe it would pull way stronger up top for you but youll loose your launch from a dig some, but like i said thats my opinion. I noticed huge diff from going from 3.42 to 3.73 on the top end. Im going back to 3.42 seeing i added a mp 122 and keep blowing the tires off from a dig
I had to get three tunes from nelson to get it right my high rpms where about 13.4 afr which is i guess lean for my setup, he managed to get me down to 12.9-13.0 constant. which the truck ran awesome after that. Mail order tunes can be a pain nelson is awesome with working with people- but he is a busy man and have to wait sometimes
your tire size and gear IMO seem more drag getting it from a dig to your 1/8 or 1/4 time. you shouldnt pull hard up top with a higher speed, if those gears where lower i believe it would pull way stronger up top for you but youll loose your launch from a dig some, but like i said thats my opinion. I noticed huge diff from going from 3.42 to 3.73 on the top end. Im going back to 3.42 seeing i added a mp 122 and keep blowing the tires off from a dig
06-13-2013, 10:32 PM
#46
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yeah i thought that brown mark looked weird but im no expert when it comes to this im more of a parts changer unfortunately..
Judging from that dyno graph, you have some other issues going on. The waviness of your hp curve would indicate an ignition or valvetrain issue. What kind of valvesprings are you running and how many miles on them? If they have alot of miles they could be too weak to control the valves causing it to break up at higher rpm. That MS3 cam has alot of lift so it requires a good spring to control the valves. Are you getting any codes thrown? You really need to get a scanner on it and do some data logging.
My. 02.
Mike
My. 02.
Mike
with my stock injectors in efi live it said my duty cycles where at 98% at 6100 rpms, i then upgraded to marine 8.1 (42 lbs) it lowered those numbers to 63 ish % and that is with the mods in sig
I had to get three tunes from nelson to get it right my high rpms where about 13.4 afr which is i guess lean for my setup, he managed to get me down to 12.9-13.0 constant. which the truck ran awesome after that. Mail order tunes can be a pain nelson is awesome with working with people- but he is a busy man and have to wait sometimes
your tire size and gear IMO seem more drag getting it from a dig to your 1/8 or 1/4 time. you shouldnt pull hard up top with a higher speed, if those gears where lower i believe it would pull way stronger up top for you but youll loose your launch from a dig some, but like i said thats my opinion. I noticed huge diff from going from 3.42 to 3.73 on the top end. Im going back to 3.42 seeing i added a mp 122 and keep blowing the tires off from a dig
I had to get three tunes from nelson to get it right my high rpms where about 13.4 afr which is i guess lean for my setup, he managed to get me down to 12.9-13.0 constant. which the truck ran awesome after that. Mail order tunes can be a pain nelson is awesome with working with people- but he is a busy man and have to wait sometimes
your tire size and gear IMO seem more drag getting it from a dig to your 1/8 or 1/4 time. you shouldnt pull hard up top with a higher speed, if those gears where lower i believe it would pull way stronger up top for you but youll loose your launch from a dig some, but like i said thats my opinion. I noticed huge diff from going from 3.42 to 3.73 on the top end. Im going back to 3.42 seeing i added a mp 122 and keep blowing the tires off from a dig
yeah i was talking to the lady at nelsons today and she was very nice and helpful over the phone but i had to get her some more info and by the time i called back she would nor pick the phone up/
yeah i really wanted it to be set up for an eight mile due to the fact that the only track around here is a 1/8
wow i guess really need to look into those marine injectors. before i get a retune
06-14-2013, 12:24 PM
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Good luck.
Mike
Last edited by Mikey 97Z M6; 06-14-2013 at 12:45 PM.
