could timing be the issue
well this is the second dyno to confirm that my car is only producing 173 horsepower. i have a 2.9 60s intake header dp and catback, plugs and i guess a junk tune. What else could be wrong im pretty frustrated that its making lead then stock right now
The tune would have more of an affect than anything...or you have an actual motor issue. Do a compression test on each cylinder.
its.pouring ;-( would timing net me a 30+ hp loss?Originally Posted by NJHK
Doubt it to be honest...
wouldn't the car.run like poop if.i had poor compression
Sounds like its running like poop now lol
If you had a compression drop in a cylinder, it would be like running 3 1/2 cylinders now. Who tuned your car?
the car runs smooth no hesitation or idle problems, slight break up at like 6500 and above but i figured that was the plugs. i was tuned by streetdreamz out.of west.Virginia
lol well found your issue
Streetdreamz seems to leave a path of destruction...but really a dyno is a tuning tool
One dyno could one thing and another dyno say something completely different, but if it's in the same ball park twice...how are the other cars running on said dynos?
Either way it sounds like your tune is completely off.
How much boost are you showing?
No 'problems' but it breaks up above 6500?
How many miles are on the car? How old are your o2 sensors? How old are your plugs? What plugs are you running? What are they gapped at?
ngk 1 step colder gapped at .035, running 17 peak psi, 16.2 being avg. car just rolled 90k and is regularly maintained sensors are new when i installed the badmab a few weeks ago. the break up was noticeably cured when regapping the plugs but still seems evident on the dynolol well found your issue
Streetdreamz seems to leave a path of destruction...but really a dyno is a tuning tool
One dyno could one thing and another dyno say something completely different, but if it's in the same ball park twice...how are the other cars running on said dynos?
Either way it sounds like your tune is completely off.
How much boost are you showing?
No 'problems' but it breaks up above 6500?
How many miles are on the car? How old are your o2 sensors? How old are your plugs? What plugs are you running? What are they gapped at?
.035 is a pretty big gap
Timing, fueling/injectors
After that, something major.
Are you getting any misfire codes? How much timing are you running?
sporadic misfire code like not often enough to be a problem ( or so i think)
i get p0420 and p0172 @ the same.time tho
p0420 is a duh, especially if you're catless/high flow cat
p0172 is your fuel trims are too rich
Sounds like your tune is effed, and if I had to go out on a limb I am going to say your injector tables are wrong.
thank you for your help. you don't happen to have hptuners or know someone with it Newark isn't that far.away
I have it, but am LSJ tuning dumb.
If you were an LNF I'd be able to help you out.
Try shooting M-Dub a PM, he's in Raleigh NC
that's so far
are the 2 platforms that different specifically the injectors/ timing
Word of advice:
If you're getting tuned, or doing any tuning, buy HPTuners yourself even if you're not doing any tuning.
It makes situations like this a breeze to diagnose whether or not it's the tune via pulling the tune off the car and posting it say here or the HPTuners forum.
I'll be completely blunt about it too, even if I did know how to tune LSJs, I wouldn't have the time really to help you out anyways.I barely have enough time to take care of my own car half the time
if I had the money I wouldWord of advice:
If you're getting tuned, or doing any tuning, buy HPTuners yourself even if you're not doing any tuning.
It makes situations like this a breeze to diagnose whether or not it's the tune via pulling the tune off the car and posting it say here or the HPTuners forum.
I'll be completely blunt about it too, even if I did know how to tune LSJs, I wouldn't have the time really to help you out anyways.
Live and learn.
I am going to go out on a limb and say you have over 500 bucks worth of mods done to your car
We've all gone through the trial and error and the best you can do is try to be as resourceful as possible
Trust me I've had my fair shares of woulda coulda shoulda.
Take it in stride man and be grateful for the things that didn't happen.
Do you still have your 42s?
yeah, i was gonna say just post your tune, and then i realized you don't have hpt
...in my experience though, tune usually can make or break a powerful car, my first tvs dyno was only 250hp/250tq(partially due to the noodle header and bad plugs not allowing for much timing) but other tvs locals were still getting about 300whp/260tq. compared to my stock dyno (215whp/185tq) i only gained 35whp mostly due to no timing(6* at the top...very bad high egt's too) but with the extra 8psi of boost and somewhat decent timing midrange i still gained 65tq
and only tuner i can think of nearer to you would be BYT who would be able to help
yea 500 in the exhaust at least and no I went from stock to 60#Live and learn.
I am going to go out on a limb and say you have over 500 bucks worth of mods done to your car
We've all gone through the trial and error and the best you can do is try to be as resourceful as possible
Trust me I've had my fair shares of woulda coulda shoulda.
Take it in stride man and be grateful for the things that didn't happen.
Do you still have your 42s?
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