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Old 07-03-2016, 08:26 AM   #726
n2oiroc
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Quote:
Originally Posted by simpleJ View Post
^ that.


Now if the gate slams shut at full load on the dyno can the Ecu react fast enough? I do not know.

I'd post the tuner.
Older 16 bit ecu's were a bit sluggish, but could still catch it without it going nearly as far as it did here. anything 07 and newer is dramatically faster. The ecu can respond faster than the boost pressure can raise that much by a huge amount. If the map sensor can read the pressure, the ecu can react to it before the next load cell. Put it this way, in an upper gear on the dyno, it might take say 75 milliseconds to jump 2 psi. The ecu can react in less than 5 milliseconds.
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Old 07-03-2016, 09:43 AM   #727
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I'm not especially familiar with the FA20's but ECU's that are MUCH older than ours can pull 10 to 15 degrees out of an engine if it detects knock, maybe more. There are safeguards in place to at least help this kind of thing from not happening.

I'd still put the tuner's name out. According to what you've told us they are AT LEAST partially liable. Again, sometimes stuff happens. And I totally understand that a lot of times it's not as simple as "oh the tuner jacked up my car". Adding power accelerates the wear on some items that might already be pushed to their max efficiency. But after the 27 psi spike they should have stopped the dyno runs. Period.
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Old 07-03-2016, 09:57 AM   #728
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Originally Posted by n2oiroc View Post
and im skeptical that the solenoid flat out failed like that. i fix high speed industrial machinery for a living and we have hundreds of mac valves that cycle multiple times per second 24/7, 360+ days a year and they typically last for years. ive been doing it for over 10 years and cant remember any flat out stopping in one position. they wear and leak between the ports 99% of the time.

I can second this. Unless this valve was improperly installed or was non-functional out of the box the failure rate is ridiculously low. I've never personally seen a full valve failure. We have 1000's of these valves. Leaking and fluttering maybe but never a full lock up.
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Old 07-03-2016, 10:32 AM   #729
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There is a time delay (several seconds) before overboost fuel cut kicks in.
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Old 07-03-2016, 10:37 AM   #730
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There is a time delay (several seconds) before overboost fuel cut kicks in.
2 seconds on the stock map according to cobb and thats on purpose to allow the overboost past the 15.9 psi target value. It kicks in after 4 psi over target.
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Old 07-03-2016, 03:55 PM   #731
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https://youtu.be/QsMUs5dXAys

There's a video of the last good bull before it started to act up. You can hear it fluttering in the video. I know it spiked 27 psi after all they said was that's not good I didn't push them to keep going or anything like that. It's got an iag stage 3 block now anyway. N20iroc I'll send ya a pm when I get home if you want to check out that solenoid for me just to bring closure on this subject for me and everyone. By the way tuners name is right in the video big banner on the wall.
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Old 07-03-2016, 04:18 PM   #732
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Dont go there if you are in nj....no really. Dont.
There is no excuse. They fd up. Incompetence is not excusable.
I am sorry you lost the enigine, man. Its heartbreaking.

Last edited by slicky; 07-03-2016 at 05:04 PM.
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Old 07-03-2016, 08:44 PM   #733
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Reveal the tuner!
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Old 07-03-2016, 08:50 PM   #734
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Reveal the tuner!
He did, gotta watch the vid. Looks like I'll be sticking to my tuner.

Which makes me wonder, have there been any blown engines from an E-tune? Everyone rants and raves about a protune but from my understanding just about every single destroyed FA20 has been protuned. Obviously there are a ton of other variables but I'm wondering if the slower process of an E-tune isn't also safer?
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Old 07-03-2016, 09:27 PM   #735
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^^^ sorry. I have had tunes from 2 protuners and both are very competent.

My main tuner prefers protune and so do I. He is 2 hours away. We were trying to clear up a minor issue and we just went back and forth. 20 minutes on the dyno ajd the car is running fine.
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Old 07-03-2016, 10:42 PM   #736
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Unless you are prepared to do 30 revs of a etune, you cant compare the resolution of it to a dyno tune. That said, these cars dont seem to like to be loaded up on a dyno, though. There is a disturbing trend of them blowing up on a dyno.
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Old 07-04-2016, 12:10 AM   #737
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I know of atleast one that popped via an E-Tune from the FB group. Temps dropped and boost spiked, shot a rod thru the block. Not my car though, so not my place to name the tuner.
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Old 07-04-2016, 12:17 AM   #738
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Originally Posted by Nuked View Post
I know of atleast one that popped via an E-Tune from the FB group. Temps dropped and boost spiked, shot a rod thru the block. Not my car though, so not my place to name the tuner.
Tuner error. Boost should be temperature compensated. There should not be spikes due to lower ambient temps.
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Old 07-04-2016, 12:24 AM   #739
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Quote:
Originally Posted by Nuked View Post
I know of atleast one that popped via an E-Tune from the FB group. Temps dropped and boost spiked, shot a rod thru the block. Not my car though, so not my place to name the tuner.
tuner should be named to potentially save someone else from a $5k+ repair bill.
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Old 07-04-2016, 12:38 AM   #740
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Like I said, not my car not my place to say. Trust me if it was my car I would have no problems telling everyone how 125 dollar E-tune cost me 5k.
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Old 07-04-2016, 07:10 AM   #741
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I'll guess I have to pitch in, it's not a full blown engine but left me stranded my wife, baby and me 70 miles from home:

Model/Year:2016 WRX Premium
Milage:7000
EM: Stock
Mods:Stock
Fuel:93
Oil:OEM
Circumstances: Took a family trip, when I get off the highway and into a stop light, white smoke coming from the engine, engine never overheated, but radiator cracked and all the coolant was on the pavement. I'm pissed that a car so new can be so unreliable.
Actual engine failure: Still waiting what the dealership is gonna say.

I'm still under the "5 day money back guaranteed", I might just drop that one there and get another car.
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Old 07-04-2016, 08:40 AM   #742
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Originally Posted by EdWRX View Post
I'll guess I have to pitch in, it's not a full blown engine but left me stranded my wife, baby and me 70 miles from home:

Model/Year:2016 WRX Premium
Milage:7000
EM: Stock
Mods:Stock
Fuel:93
Oil:OEM
Circumstances: Took a family trip, when I get off the highway and into a stop light, white smoke coming from the engine, engine never overheated, but radiator cracked and all the coolant was on the pavement. I'm pissed that a car so new can be so unreliable.
Actual engine failure: Still waiting what the dealership is gonna say.

I'm still under the "5 day money back guaranteed", I might just drop that one there and get another car.
This doesn't sound like an issue with an unreliable car but more of a defective part or possibly something that hit the radiator.
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Old 07-04-2016, 09:05 AM   #743
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Quote:
Originally Posted by EdWRX View Post
I'll guess I have to pitch in, it's not a full blown engine but left me stranded my wife, baby and me 70 miles from home:

Circumstances: Took a family trip, when I get off the highway and into a stop light, white smoke coming from the engine, engine never overheated, but radiator cracked and all the coolant was on the pavement. I'm pissed that a car so new can be so unreliable.
Actual engine failure: Still waiting what the dealership is gonna say.

I'm still under the "5 day money back guaranteed", I might just drop that one there and get another car.
So where is the engine failure here? I think you are posting in a wrong thread.
You can not be serious about wanting to dump the car over this.
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Old 07-04-2016, 09:15 AM   #744
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Why not? The reason of buying a new car is to be dead nuts reliable. If it can't do that, no point in having it.

I'd guess something hit it, but if waiting to find out what the dealer says was the issue puts him past the 5 day return policy, is it worth finding out it was a manufacturing defect?

I've been stranded by cars before, its not fun. If it was a brand new car I'd be furious.
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Old 07-04-2016, 11:34 AM   #745
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Come on, why not dump it if it's so new, I would embrace it if the car is more than 30 or 40k miles, just get over with the repair and keep going.

I'll wait to hear from the dealer, it could've been engine failure if I didn't pull over on time.
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Old 07-04-2016, 09:00 PM   #746
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More importantly, 5 days and 7000 miles!!
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Old 07-04-2016, 09:44 PM   #747
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Quote:
Originally Posted by EdWRX View Post
I'll guess I have to pitch in, it's not a full blown engine but left me stranded my wife, baby and me 70 miles from home:

Model/Year:2016 WRX Premium
Milage:7000
EM: Stock
Mods:Stock
Fuel:93
Oil:OEM
Circumstances: Took a family trip, when I get off the highway and into a stop light, white smoke coming from the engine, engine never overheated, but radiator cracked and all the coolant was on the pavement. I'm pissed that a car so new can be so unreliable.
Actual engine failure: Still waiting what the dealership is gonna say.

I'm still under the "5 day money back guaranteed", I might just drop that one there and get another car.
Maybe it's just me...

But this story smells fishy.

Less than five days and 7000 miles??? Family trip? Brand new car? Radiator fubared and engine didn't overheat?

Na.
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Old 07-04-2016, 10:42 PM   #748
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Ok, the story is not fishy, I didn't explain myself entirely, got the car from carmax, with 6800 on the odo a week ago, during yesterday's trip the radiator broke.

That's why I mention the 5 day money back guarantee, if it turns out a major engine problem, I get my money back, that's it.
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Old 07-05-2016, 08:03 AM   #749
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Quote:
Originally Posted by slicky View Post
So where is the engine failure here? I think you are posting in a wrong thread.
You can not be serious about wanting to dump the car over this.
Quote:
Originally Posted by EdWRX View Post
Ok, the story is not fishy, I didn't explain myself entirely, got the car from carmax, with 6800 on the odo a week ago, during yesterday's trip the radiator broke.

That's why I mention the 5 day money back guarantee, if it turns out a major engine problem, I get my money back, that's it.
Scoot.
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Old 07-05-2016, 10:03 AM   #750
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Quote:
Originally Posted by EdWRX View Post
Ok, the story is not fishy, I didn't explain myself entirely, got the car from carmax, with 6800 on the odo a week ago, during yesterday's trip the radiator broke.

That's why I mention the 5 day money back guarantee, if it turns out a major engine problem, I get my money back, that's it.
Not knowing the kat owner or the history makes it tough to judge. The last guy could have had an aftermarket radiator in the car and swapped the OEM one back in before trade and easily damaged it somewhere in the process.

Could also be a random failure but the chances of it failing randomly this early are incredibly low. It's more likely someone or something (like mentioned earlier, something flying and hitting it) caused the damage.
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