Melted piston...again
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#54
Re: Melted piston...again
A picture is worth a 1000 words right, well here are 2000 then
Tuned to 7 psi The car is getting its fuel/timing trims from the highlighted blue portions. Add more column and there is nothing on there or only calculated values that have to be tuned. Thats why the stock ECU goes into limp mode
You cant properly get to a destination if the map you are using has a hole on it, you are doing the same thing to your motor.
Tuned to 7 psi The car is getting its fuel/timing trims from the highlighted blue portions. Add more column and there is nothing on there or only calculated values that have to be tuned. Thats why the stock ECU goes into limp mode
You cant properly get to a destination if the map you are using has a hole on it, you are doing the same thing to your motor.
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Re: Melted piston...again
What map you talking about?
and your saying that if the ecu is tuned for a certain psi you cant go higher because the ecu wont know what numbers to use?
I have a speed factory 4bar map btw
and your saying that if the ecu is tuned for a certain psi you cant go higher because the ecu wont know what numbers to use?
I have a speed factory 4bar map btw
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Re: Melted piston...again
The overheating was probably due to the tune but the pistons breaking was a chain to the overheating, cap leaking, coolant in intake manifold. Thats exactly what makes sense. because the car was never on after the final pull so there was no way the intake manifold and exhaust manifold were soaked with water from just sitting there. You can see a nice stream running down the intake right into the chamber.
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Re: Melted piston...again
took the turbo manifold off and 3 ports were soaked. I think its antifreeze with a mix of carbon gases. That bad cylinder looks oil soaked. oil could have been bypassing the rings.
another question. if i can just hone out the sleeves and buy one piston should i? or Should I go to 88mm and order a new set of pistons?
When i take it to the shop ill know for sure what im going to do. I just want other people opinions.
another question. if i can just hone out the sleeves and buy one piston should i? or Should I go to 88mm and order a new set of pistons?
When i take it to the shop ill know for sure what im going to do. I just want other people opinions.
It won't let you blow your motor up again.
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Re: Melted piston...again
not for nothing but u need to really take your car to a shop / tuner who knows what they are doing .. but since u got money to blow keep doing what you do .. i love reading awesome posts like yours..
good luck on the 3rd build
good luck on the 3rd build
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Re: Melted piston...again
#62
Re: Melted piston...again
Yes, the 4bar map only allows your ecu to read up to 32 psi or whatever it is but it wont know what fuel tables to use since it wont have any. Limp mode is your freind so is a boost cut
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Re: Melted piston...again
thats why i was in the middle of getting it tuned. dont need a boost cut if its tuned right.
my problem was that i went to a friend and not a tuning shop
my problem was that i went to a friend and not a tuning shop
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Re: Melted piston...again
#65
Re: Melted piston...again
Ever heard of over boost, or boost creep, what happens if your wastegate fails? Boost cut will save your motor if that happens. ALways, always set your boost cut
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Re: Melted piston...again
Should have the car tuned and running tomorrow. All 4 pistons were messed up. Went out and bought 88mm arias pistons. The car started today and i should be getting it tuned today hopefully.
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Re: Melted piston...again
So everything has been running for about a month or so. No major problems just my radiator keeps leaking out of the cap so i went and ordered a duel core. I went to low with the compression with the arias pistons. My compression is like 110 on all 4.
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Re: Melted piston...again
My guess too. Looks like the ring started to get seized and it broke out the top of the piston. It started off ok but once they got hot and started to expand... BLAMMO
#72
Re: Melted piston...again
what compression were you running 6:1? 110 is extremely low were you doing it right? throttle plate wide open?