just got hta green tuned, stuck at 360/360
Jun 5, 2010, 08:27 PM
#61
Yes. Another thing that is especially dangerous for a stock motor with the HTA Green is the fact that the torque curve hits so early. This low end torque is especially difficult for stock internals. Quite a few people who have bought this turbo and really cranked things up learned that lesson the hard way.
Jun 5, 2010, 08:32 PM
#62
I have used that rule for quite awhile with only 2 notable cases of failure. For reference I went 49k with absolutely no issues, pulled the motor, did the inspection and even posted pictures of them (rods/pistons/bearings).
On to the bad news-
Jake our tech with the 2.4 stock turbo that makes 476/495 now, lost a rod at 384 ft lbs on his stock motor (142k old). There were extenuating circumstances which we believe was related to a boost control issue on a cold winter night (free boosting on the street for the loss). This would obviously have put the put the torque far higher and knowing what I do about free boosted stock turbos probably more like 450-460 ft lbs.
JohnnyTsi was also around 380-390 ft lbs. He had a rod go through the block but in reality it was the piston broke in two at the wrist pin. The top half of the piston was perfect and slid up and down the bore. The fact it was no longer connected allowed the rod to exit the block and hit the T-case as well.
Other than that the 400 ft lb rule has been a very safe and predictable level for the stock 2.0L. I am sure there are a few others out there that were using that as a guideline and had problems (one I know of but cant think of the user's name) but for the other 99% it seems safe. However as you pointed out the cost is not worth it and being proactive and deciding to invest in a motor is a much better and financially sound idea.
On to the bad news-
Jake our tech with the 2.4 stock turbo that makes 476/495 now, lost a rod at 384 ft lbs on his stock motor (142k old). There were extenuating circumstances which we believe was related to a boost control issue on a cold winter night (free boosting on the street for the loss). This would obviously have put the put the torque far higher and knowing what I do about free boosted stock turbos probably more like 450-460 ft lbs.
JohnnyTsi was also around 380-390 ft lbs. He had a rod go through the block but in reality it was the piston broke in two at the wrist pin. The top half of the piston was perfect and slid up and down the bore. The fact it was no longer connected allowed the rod to exit the block and hit the T-case as well.
Other than that the 400 ft lb rule has been a very safe and predictable level for the stock 2.0L. I am sure there are a few others out there that were using that as a guideline and had problems (one I know of but cant think of the user's name) but for the other 99% it seems safe. However as you pointed out the cost is not worth it and being proactive and deciding to invest in a motor is a much better and financially sound idea.
Jun 6, 2010, 06:42 AM
#64
I have used that rule for quite awhile with only 2 notable cases of failure. For reference I went 49k with absolutely no issues, pulled the motor, did the inspection and even posted pictures of them (rods/pistons/bearings).
On to the bad news-
Jake our tech with the 2.4 stock turbo that makes 476/495 now, lost a rod at 384 ft lbs on his stock motor (142k old). There were extenuating circumstances which we believe was related to a boost control issue on a cold winter night (free boosting on the street for the loss). This would obviously have put the put the torque far higher and knowing what I do about free boosted stock turbos probably more like 450-460 ft lbs.
JohnnyTsi was also around 380-390 ft lbs. He had a rod go through the block but in reality it was the piston broke in two at the wrist pin. The top half of the piston was perfect and slid up and down the bore. The fact it was no longer connected allowed the rod to exit the block and hit the T-case as well.
Other than that the 400 ft lb rule has been a very safe and predictable level for the stock 2.0L. I am sure there are a few others out there that were using that as a guideline and had problems (one I know of but cant think of the user's name) but for the other 99% it seems safe. However as you pointed out the cost is not worth it and being proactive and deciding to invest in a motor is a much better and financially sound idea.
On to the bad news-
Jake our tech with the 2.4 stock turbo that makes 476/495 now, lost a rod at 384 ft lbs on his stock motor (142k old). There were extenuating circumstances which we believe was related to a boost control issue on a cold winter night (free boosting on the street for the loss). This would obviously have put the put the torque far higher and knowing what I do about free boosted stock turbos probably more like 450-460 ft lbs.
JohnnyTsi was also around 380-390 ft lbs. He had a rod go through the block but in reality it was the piston broke in two at the wrist pin. The top half of the piston was perfect and slid up and down the bore. The fact it was no longer connected allowed the rod to exit the block and hit the T-case as well.
Other than that the 400 ft lb rule has been a very safe and predictable level for the stock 2.0L. I am sure there are a few others out there that were using that as a guideline and had problems (one I know of but cant think of the user's name) but for the other 99% it seems safe. However as you pointed out the cost is not worth it and being proactive and deciding to invest in a motor is a much better and financially sound idea.
Jun 6, 2010, 07:38 AM
#65
This is what I was going to consider if I stuck with my stock setup. Running Tephra V7 and doing some gear dependent boost to control low RPM torque numbers. I thought to myself, it is a crime to dial BACK the power of a setup
so I cashed in and upgraded...
