what is causing my power loss?
07-11-2007, 10:47 PM
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what is causing my power loss? well about a year ago my car dynoed at 380hp just recently the car lost power drasticly. it still runs and drives ok but now only makes 270hp. what internal damage could cause this? there is no knock, and a compression test says all everything is ok.
07-11-2007, 11:41 PM
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Originally Posted by erikshockey
well about a year ago my car dynoed at 380hp just recently the car lost power drasticly. it still runs and drives ok but now only makes 270hp. what internal damage could cause this? there is no knock, and a compression test says all everything is ok.
07-12-2007, 12:33 AM
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Originally Posted by GOaT Cheese
Did you have the same shop, and technician do all the dyno pulls? If no, then you are probably a victim of "dynotruthicus". This is an affliction that attacks many dyno queens, it starts out inconspicuous, with, let's say optimistic, dyno results. Then, months or even years later, dynotruthicus strikes it's victim, this being in the form of another dyno shop, possibly not even in the same city or town, performing more dyno pulls, but not using the same tricks as the first dyno shop did to inflate the RWHP numbers. This can lead to devestating emotional problems, sometimes...now this is rare, but it can happen, the realization that dyno numbers shouldn't be taken too seriously. Remember, only real track time gives real results.
07-12-2007, 03:04 PM
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Did you have the same shop, and technician do all the dyno pulls? If no, then you are probably a victim of "dynotruthicus". This is an affliction that attacks many dyno queens, it starts out inconspicuous, with, let's say optimistic, dyno results. Then, months or even years later, dynotruthicus strikes it's victim, this being in the form of another dyno shop, possibly not even in the same city or town, performing more dyno pulls, but not using the same tricks as the first dyno shop did to inflate the RWHP numbers. This can lead to devestating emotional problems, sometimes...now this is rare, but it can happen, the realization that dyno numbers shouldn't be taken too seriously. Remember, only real track time gives real results.
situation is not funny at all,,but damn that post is.
07-14-2007, 06:08 PM
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Originally Posted by GOaT Cheese
Did you have the same shop, and technician do all the dyno pulls? If no, then you are probably a victim of "dynotruthicus". This is an affliction that attacks many dyno queens, it starts out inconspicuous, with, let's say optimistic, dyno results. Then, months or even years later, dynotruthicus strikes it's victim, this being in the form of another dyno shop, possibly not even in the same city or town, performing more dyno pulls, but not using the same tricks as the first dyno shop did to inflate the RWHP numbers. This can lead to devestating emotional problems, sometimes...now this is rare, but it can happen, the realization that dyno numbers shouldn't be taken too seriously. Remember, only real track time gives real results.
But let me get this Straight... YOU CANT FEEL 110 REAR WHEEL HP LOSS!!!!
Christ man.. You fell victim to the RWHP bug. let me guess. That dyno shops "bolt ons" added 50 RWHP also right???
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07-14-2007, 09:04 PM
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To be more serious...
What Goat Cheese posted while funny needs to be taken seriously.
Give us some more info on your setup.
Same dyno as before? If no what kind was it before and what kind of dyno was it the last time?
Mustang dynos can be 20-30% lower then dynojets.
110 RWHP should easily be noticed in the seat of the pants feel.
You have left out way to much info to answer your questions accurately.
Jeremy
What Goat Cheese posted while funny needs to be taken seriously.
Give us some more info on your setup.
Same dyno as before? If no what kind was it before and what kind of dyno was it the last time?
Mustang dynos can be 20-30% lower then dynojets.
110 RWHP should easily be noticed in the seat of the pants feel.
You have left out way to much info to answer your questions accurately.
Jeremy
07-15-2007, 06:28 AM
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Originally Posted by MPHmotorsports
To be more serious...
What Goat Cheese posted while funny needs to be taken seriously.
Give us some more info on your setup.
Same dyno as before? If no what kind was it before and what kind of dyno was it the last time?
Mustang dynos can be 20-30% lower then dynojets.
110 RWHP should easily be noticed in the seat of the pants feel.
You have left out way to much info to answer your questions accurately.
Jeremy
What Goat Cheese posted while funny needs to be taken seriously.
Give us some more info on your setup.
Same dyno as before? If no what kind was it before and what kind of dyno was it the last time?
Mustang dynos can be 20-30% lower then dynojets.
110 RWHP should easily be noticed in the seat of the pants feel.
You have left out way to much info to answer your questions accurately.
Jeremy
its not the same shop but same type of dyno.
and yes you can deff feel a difference, the car wont even spin from a dead stop now. before i was running 7.3x's 1/8th.
the car still has no knock, im thinking the car may have a cracked piston or floated valves. just dont have time to pull the heads, when i get time ill let you know.
07-15-2007, 10:13 AM
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There are other tests to see if your missing something in the bottom end. Did you doa leak dwon test and compression test?
I would pull the valve covers and make sure everything there is intact and as it should be. What kind of dyno were you on?
7.3's in the 1/8 is a very good time and shows the car has some good power if it is full weight or close to full weight. How big is you converter and what gears do you run?
Either way if your down that far on power something is wrong for sure.
good luck finding the HP robber.
I would pull the valve covers and make sure everything there is intact and as it should be. What kind of dyno were you on?
7.3's in the 1/8 is a very good time and shows the car has some good power if it is full weight or close to full weight. How big is you converter and what gears do you run?
Either way if your down that far on power something is wrong for sure.
good luck finding the HP robber.
07-16-2007, 01:55 AM
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Originally Posted by MPHmotorsports
There are other tests to see if your missing something in the bottom end. Did you doa leak dwon test and compression test?
I would pull the valve covers and make sure everything there is intact and as it should be. What kind of dyno were you on?
7.3's in the 1/8 is a very good time and shows the car has some good power if it is full weight or close to full weight. How big is you converter and what gears do you run?
Either way if your down that far on power something is wrong for sure.
good luck finding the HP robber.
I would pull the valve covers and make sure everything there is intact and as it should be. What kind of dyno were you on?
7.3's in the 1/8 is a very good time and shows the car has some good power if it is full weight or close to full weight. How big is you converter and what gears do you run?
Either way if your down that far on power something is wrong for sure.
good luck finding the HP robber.
i have also pulled the vavle covers, pushrods and everything, no damage was visible, and all springs were good.
dynojet dyno, close to full weight, converter is a 4000 and 4.10 gears. full suspension.
motor is coming out today, so ill post up the hp robber. it was time for a rebuild with 95k on the clock anyway.
thanks for your help and advise.
07-16-2007, 02:33 AM
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Originally Posted by ThirdGenLS1
well hopefully you find somthing, i recently did a leak down on my car and found two bad cyl.. After tearing it down i found i had two broken ring lands.
07-28-2007, 10:47 PM
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well finally got around to it. with the heads off found eyebrows on a couple of pistons. also found out the driver side head gasket was leaking, thank god i did not hydrolock the motor.
07-29-2007, 01:16 PM
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Originally Posted by erikshockey
well finally got around to it. with the heads off found eyebrows on a couple of pistons. also found out the driver side head gasket was leaking, thank god i did not hydrolock the motor.