Why So Many Evo Owners Blow Stock Engine?
Sep 14, 2006, 07:09 PM
#31
540whp estimate, 128mph trapspeed, 11.2 ET, letting off twice to slipping clutch.
Pistons are perfect as the day I bought the car.
Datalogging, Tuning, Monitoring, Safeguards.
Detonation breaks ****... Period.
Pistons are perfect as the day I bought the car.
Datalogging, Tuning, Monitoring, Safeguards.
Detonation breaks ****... Period.
Last edited by TTP Engineering; Sep 14, 2006 at 07:13 PM.
Sep 14, 2006, 07:12 PM
#32
Originally Posted by yesevo
\
I JUST WANT EVOM PEOPLE TO KNOW THIS ! AND I CANT BELIEVE LOTS OF EVO S ARE STILL RUNNING FINE..,., EVENTUALLY IT WILL HAPPEND TO ANYBODY OUT THERE....
AND I NEED OPINION HOW SHOULD I MOD SAFELY ON MY EVO9 MR
I JUST WANT EVOM PEOPLE TO KNOW THIS ! AND I CANT BELIEVE LOTS OF EVO S ARE STILL RUNNING FINE..,., EVENTUALLY IT WILL HAPPEND TO ANYBODY OUT THERE....
AND I NEED OPINION HOW SHOULD I MOD SAFELY ON MY EVO9 MR
Are you retarded? Why are you typing in caps?
Sep 14, 2006, 07:13 PM
#33
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we need pics yo.. i say maybe your meth failed to spray and you had all that air coming in with no where to go but the combustion chamber and BOOM.. to much stress on the piston and it weakened out causing it to give.. good luck with the your Evo and NO.!! MR's are not superior.. 
I have an MR and is just the same as my buddies RS.. except for the acessories, and the tranny.. 
I have an MR and is just the same as my buddies RS.. except for the acessories, and the tranny..
Sep 14, 2006, 07:16 PM
#34
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Originally Posted by TTP Engineering
540whp estimate, 128mph trapspeed, 11.2 ET, letting off twice to slipping clutch.
Pistons are perfect as the day I bought the car.
Datalogging, Tuning, Monitoring, Safeguards.
Detonation breaks ****... Period.
Pistons are perfect as the day I bought the car.
Datalogging, Tuning, Monitoring, Safeguards.
Detonation breaks ****... Period.
Sep 14, 2006, 07:17 PM
#36
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Originally Posted by yesevo
OK I GOT STREET TUNED BY ONE OF FAMOUS TUNER AND THE METHANOL WAS SPRAYING AT THAT TIME I BLEW THE ENGINE....IT HAS NOTHING TO DO WITH TUNE,,,
STILL YOU CAN BLOW THE ENGINE WITH GOOD TUNE AND GOOD A/F RATIO,,,,,,ITS JUST THAT TOO MUCH STRESS ADDED TO THE WEAK PISTON
STILL YOU CAN BLOW THE ENGINE WITH GOOD TUNE AND GOOD A/F RATIO,,,,,,ITS JUST THAT TOO MUCH STRESS ADDED TO THE WEAK PISTON
Sep 14, 2006, 07:25 PM
#39
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I do have to comment that I've seen some unusual piston failures on Evos. On most cars, the ring lands will break up and result in compression failure. But on at least two Evos I've seen pistons cracked in half, a straight line right across the top of the piston. It makes me wonder if the Evo pistons are not as strong across the piston face -- or stronger in the ring lands than most.
Anyway, I agree that detonation breaks engines. And trying to squeeze 350+ out of a stock motor on pump gas WILL result in detonation. Even with methanol, 370 awhp is huge power, and one detonation incident could be catastrophic.
--Dan
Mach V
MachEVO.com
Anyway, I agree that detonation breaks engines. And trying to squeeze 350+ out of a stock motor on pump gas WILL result in detonation. Even with methanol, 370 awhp is huge power, and one detonation incident could be catastrophic.
--Dan
Mach V
MachEVO.com
Sep 14, 2006, 07:32 PM
#41
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Originally Posted by Mach V Dan
I do have to comment that I've seen some unusual piston failures on Evos. On most cars, the ring lands will break up and result in compression failure. But on at least two Evos I've seen pistons cracked in half, a straight line right across the top of the piston. It makes me wonder if the Evo pistons are not as strong across the piston face -- or stronger in the ring lands than most.
Anyway, I agree that detonation breaks engines. And trying to squeeze 350+ out of a stock motor on pump gas WILL result in detonation. Even with methanol, 370 awhp is huge power, and one detonation incident could be catastrophic.
--Dan
Mach V
MachEVO.com
Anyway, I agree that detonation breaks engines. And trying to squeeze 350+ out of a stock motor on pump gas WILL result in detonation. Even with methanol, 370 awhp is huge power, and one detonation incident could be catastrophic.
--Dan
Mach V
MachEVO.com
Sep 14, 2006, 07:32 PM
#42
Originally Posted by TTP Engineering
Detonation breaks pistons. It is no doubt what we are looking at.
The local piston failures have been from meth injection failures or lack of turning the system on before boosting 28psi.
The local piston failures have been from meth injection failures or lack of turning the system on before boosting 28psi.
When the bearings look perfect but you have this problem, you have too much power and torque, period.
Sep 14, 2006, 07:38 PM
#44
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Originally Posted by TTP Engineering
540whp estimate, 128mph trapspeed, 11.2 ET, letting off twice to slipping clutch.
Pistons are perfect as the day I bought the car.
Datalogging, Tuning, Monitoring, Safeguards.
Detonation breaks ****... Period.
Pistons are perfect as the day I bought the car.
Datalogging, Tuning, Monitoring, Safeguards.
Detonation breaks ****... Period.
Looks perfect. There so clean.
