Need another engine: LNF again or LDK?
11-10-2017, 04:49 PM
#1
New Member
Thread Starter
Need another engine: LNF again or LDK/LHU
So my current LNF blew up pistons rings. I did a leakdown test and the results were heartbreaking:
Cyl 1 10% leak
Cyl 2 70% leak
Cyl 3 30% leak
Cyl 4 80% leak
The car was running a trifecta tune when I bought it but it was already too late when I immediately change it for HP Tuner.
So I'm considering to change my engine but I want to know if I should buy another LNF or go with LDK/LHU. Since I don't know the pros and cons of both engines, I'm asking here for info before buying one or the other.
Cyl 1 10% leak
Cyl 2 70% leak
Cyl 3 30% leak
Cyl 4 80% leak
The car was running a trifecta tune when I bought it but it was already too late when I immediately change it for HP Tuner.
So I'm considering to change my engine but I want to know if I should buy another LNF or go with LDK/LHU. Since I don't know the pros and cons of both engines, I'm asking here for info before buying one or the other.
Last edited by Julien Scherer; 11-10-2017 at 05:11 PM.
11-11-2017, 11:38 AM
#6
New Member
Thread Starter
Ok so LDK is a better option. At my range of power (380 hp/410tq 26 psi hptuner), do you think the rods/pistons will hold on? How much power do you think I can reach before having to change them?
11-13-2017, 09:26 AM
#10
Did you scope the cylinder? Did you do a compression test? Reason I ask is that you should do both because our valves have been known to be very dirty and cause leakage.
I see that you already get it, but just a reminder, do not run Trifecta when you get a new engine. It runs too rich and breaks ringlands.
I see that you already get it, but just a reminder, do not run Trifecta when you get a new engine. It runs too rich and breaks ringlands.
11-14-2017, 08:38 PM
#11
New Member
Thread Starter
I did a compression test already:
Cyl 1 120
Cyl 2 80
Cyl 3 110
Cyl 4 70
I know that Trifecta is **** since a lot of years. I didn't know my car had TFT first when I bought it until I pressed on the cruise control button. I changed it the day after for a stock pcm and eventually for HP tuner.
Cyl 1 120
Cyl 2 80
Cyl 3 110
Cyl 4 70
I know that Trifecta is **** since a lot of years. I didn't know my car had TFT first when I bought it until I pressed on the cruise control button. I changed it the day after for a stock pcm and eventually for HP tuner.
11-15-2017, 11:37 AM
#12
Did you scope the cylinder? Did you do a compression test? Reason I ask is that you should do both because our valves have been known to be very dirty and cause leakage.
I see that you already get it, but just a reminder, do not run Trifecta when you get a new engine. It runs too rich and breaks ringlands.
I see that you already get it, but just a reminder, do not run Trifecta when you get a new engine. It runs too rich and breaks ringlands.
explain
11-15-2017, 03:04 PM
#13
The general consensus was that with the excess fuel in the cylinder, the fuel washes the cylinder wall of oil lubrication and causes failure specifically at the rings. I have never seen what kind of timing Trifecta runs. But again, the OP is not the first or last Trifecta car to blow an engine.
12-08-2017, 03:48 AM
#14
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Hey I was wondering will a 2010 2.0 l lnf turbo ss motor fit in a 2010 colbalt Lt engine bay with out to much work and also when the engine is decelerating smoke blows out of engine what would the problem be
