ok some of u may have read my topic on my dyno runs.
my mods are
rebuilt 302 shortblock
thumper ported e7s
tmoss ported stock lower intake.
gasket matched upper (port matched and opened to 70mm TB)
B-cam advanced 4 degrees
1.7 RRs
70mm TB
73 MM MAF (stock injectors)
CAI
holley 190lph with adj regulator.
UD pullies
BBK headers
OR Hpipe
dynomax race bullet mufflers
KC clutch
freshly rebuilt t5 with 2.95 D&D gearset with steeda triax
aluminum DS
3.90 gears
car made 225HP and 265-270 lb FT on a mustang dyno
got to the track today and it ran best of [email protected] with a 2.1 60' on street tires.
i didnt come to conclusions on the HP numbers till i got to the track to see what it would do. people said the mustang dynos read lower than dynojets and etc.
i came out dissapointed in its performance today. the car runs good. no problems with it running it runs smooth and drives great. AFR on the dyno was a steady 13:1
i did a compression test last week to start eliminating possibilities. the test was perfect, all 8 cyls were in between 140-145
for the engine HCI i figured it would have made more HP and trapped at least 104-105 running mid to low 13s everyone online seems to have great luck with tmoss/thumper combos.
take mind my stock engine actually ran the same if not better than my new engine.
best runs on the stock engine were 14.1 @99 with a 2.0 60' on DRs
and
13.9 @97 with a 1.9 60' on DRs
mods then included
BONE STOCK LONGBLOCK never had heads off and had over 140k miles
1.7 RRs
CAI
UD pullies
E-fan
flowtech headers, crappy hpipe and flow40s
KC clutch
stock 3.35 t5
3.90s gears
as you can see, i added quite a bit of new parts to the new engine and gained nothing, actually seemed like it lost power at the track.
but the engine runs good, no mechanical problems. just doesnt make the power it seems
like i stated before, AFR was dead on, compression couldnt be better
one thing i considered was going back in and putting the B-cam back to straight up instead of deg adv. the new engine stops pulling shortly after 5k, a stock engine pulls to the same point. i think it may help but wouldnt have thought i would have had such a drastic effect on numbers and times.
just confuses me, i have seen people with very similar combos running mid to high 12s.
maybe i should just park it, take off the HCI i have now, sell it and dont cut corners and go straight for the trickflow HCI kit and be done with it.
on the dyno deal. my friend has a 97 GT, its mods are short, it has a k&n filter. and a hpipe and flowmasters an on the exact same dyno it made 207 HP and 270 TQ, made the same TQ as me and not much less HP. i figured everything i have done to my car would have it make more than 17 HP over a pretty much stock SOHC 4.6L, so its almost certain something is wrong with my car.
some could argue that its still just stock parts, but i added a handful of mods and i figured i would have gained some power there and better times, i figured a nice tmoss/thumper/B-cam HCI would be more than a 25 hp increase over stock assuming a stock 5.0 makes 200 HP on the dyno
so i come to my question do you guys have any idea on what may be wrong and what to maybe try doing.
my mods are
rebuilt 302 shortblock
thumper ported e7s
tmoss ported stock lower intake.
gasket matched upper (port matched and opened to 70mm TB)
B-cam advanced 4 degrees
1.7 RRs
70mm TB
73 MM MAF (stock injectors)
CAI
holley 190lph with adj regulator.
UD pullies
BBK headers
OR Hpipe
dynomax race bullet mufflers
KC clutch
freshly rebuilt t5 with 2.95 D&D gearset with steeda triax
aluminum DS
3.90 gears
car made 225HP and 265-270 lb FT on a mustang dyno
got to the track today and it ran best of [email protected] with a 2.1 60' on street tires.
i didnt come to conclusions on the HP numbers till i got to the track to see what it would do. people said the mustang dynos read lower than dynojets and etc.
i came out dissapointed in its performance today. the car runs good. no problems with it running it runs smooth and drives great. AFR on the dyno was a steady 13:1
i did a compression test last week to start eliminating possibilities. the test was perfect, all 8 cyls were in between 140-145
for the engine HCI i figured it would have made more HP and trapped at least 104-105 running mid to low 13s everyone online seems to have great luck with tmoss/thumper combos.
take mind my stock engine actually ran the same if not better than my new engine.
best runs on the stock engine were 14.1 @99 with a 2.0 60' on DRs
and
13.9 @97 with a 1.9 60' on DRs
mods then included
BONE STOCK LONGBLOCK never had heads off and had over 140k miles
1.7 RRs
CAI
UD pullies
E-fan
flowtech headers, crappy hpipe and flow40s
KC clutch
stock 3.35 t5
3.90s gears
as you can see, i added quite a bit of new parts to the new engine and gained nothing, actually seemed like it lost power at the track.
but the engine runs good, no mechanical problems. just doesnt make the power it seems
like i stated before, AFR was dead on, compression couldnt be better
one thing i considered was going back in and putting the B-cam back to straight up instead of deg adv. the new engine stops pulling shortly after 5k, a stock engine pulls to the same point. i think it may help but wouldnt have thought i would have had such a drastic effect on numbers and times.
just confuses me, i have seen people with very similar combos running mid to high 12s.
maybe i should just park it, take off the HCI i have now, sell it and dont cut corners and go straight for the trickflow HCI kit and be done with it.
on the dyno deal. my friend has a 97 GT, its mods are short, it has a k&n filter. and a hpipe and flowmasters an on the exact same dyno it made 207 HP and 270 TQ, made the same TQ as me and not much less HP. i figured everything i have done to my car would have it make more than 17 HP over a pretty much stock SOHC 4.6L, so its almost certain something is wrong with my car.
some could argue that its still just stock parts, but i added a handful of mods and i figured i would have gained some power there and better times, i figured a nice tmoss/thumper/B-cam HCI would be more than a 25 hp increase over stock assuming a stock 5.0 makes 200 HP on the dyno
so i come to my question do you guys have any idea on what may be wrong and what to maybe try doing.
