yeah, def. NOT the tune. but somehow, maybe just too much constant power for the stock engine to handle. I really dont think it was the meth unless it was a bad mixture, but i guess it is a possibility as well.
Sorry for your issues man. Hopefully you will be back and running strong soon.

 

yea id say it was probably just at its breaking point. one of those times where "pay to play" comes to mind haha

 

I had a low compression issue last week turns out I needed a new head, prob crapped up valves it was covered under the powertrain. Before I dropped it off I talked to a friends friend whos a GM tech. He said the valve issue is very common and if it was a piston you would have issues with oil being in places it shouldn't.

 

how cold has it gotten where you are? I know my car with a stock turbo see's a pretty big leap when the airs in the 40's and 50's ...... cant imagine what an efr at 26psi pick up but I know the power increase puts alot more demands on the powertrain in my car. Any chance it might have effected yours?

I know the air changes alot and my fuel trims change to where the car starts adding fuel so just a opinion.

 

how many miles on the motor? how long are you staying at wide open throttle for on average?

a big part of what ive been seeing lately is people are staying at WOT for LONG periods of time....... to the point on the built motors they are melting heat tabs. the cars arent designed to do that built or not.

unfortunately it comes down to you pay to play. regardless of mechanical, tune, or whatever causes a break in a car its part of the game of going fast.

we had a car come in recenetly with no compression in number one....... pulled the motor apart. half of one of the valves was gone on the exhaust side along with the spark plug electrode. dont neccisarily think it was the tune that was in there BUT time will tell when i pull the logs. however it could of been something simple that a valve floated for literally a second too long or just a sheer mechanical failure. its the nature of the best and nothing lasts for ever.

 

I can answer this, big gains! Can destroy the tires in 1st,2nd,3rd and 4th haha..

I'm curious to see how many of you guys kill your motors with the efr swap. It comes down to the tune and driving style cause knock on wood I'm going on 2yrs of daily driving without any problems.

 

Thats where my head was ..... we used to jet our sleds when i was a kid and you had to watch it when it cooled off. I've burnt my share of pistons in sleds so I think of how long i hold my car open ..... I know its not the same but it makes you think about temps. Even My water temp even goes up 3-5 degrees when it start getting cold out .... krazy but true.

 

Haha.... i figured . If I can feel like I have 10-15 more whp you guys must get a ton. I start noticing my clutch starting to give up in third .... plus you can almost hear the car run crisper.... if that makes any sense

 

Yea, I literally feel like 40hp difference from 100* day to 60* nights with the EFR. One reason I do not run meth is for that reason that it can clog. If it clogs and you're at WOT, ahhhh :/

 

It does seem to have a different tone and just feels snappy.. My car is completely gutted right now so I can feel the difference with less weight also.

Everyone should have there tunes checked cause gas is switching over and you could see KR with the winter blend. I run the same 26psi but a little less timing and keep my fuel trim a little bit more on the negative side.

 

I thought you did have some kind of problem recently, donkey.

 

Yea I hear u guys and hey by no means am I pissed that this happened lol I kinda realy don't care to be honest just time to build the car now haha... but it has gotten pretty cold in ct been seein temps in the 40s now but like I saidi haven't realy gotten on the car that much which is y I was a little confused lol... but needless to say ither ill build it or ill build it haha... doint a leak down test later just waitin for my pops t finish doin wat he is doin

 

You never know, it could be valves. Crossing my fingers for you.

 

Should I be concerned with winter blend on e47? I'm in the middle of tuning so I'm guessing James will see KR if there is any.

One question to you, what did you do to lose weight with the car. I'm going to 1/2 mile drag and the SS needs to lose weight. Anything you can recommend besides backseats/spare etc?

 

Yep....... even with minor stuff I have done I watch Afr's , trims, Iat's , knock , ect with my dashhawk . And I have little to worry about compared to u big turbo guys ......haha im a nervous nelly thou.

 

Just compressor surge nothing engine related. .

 

Ah. You ever figure out what it was?

 

If you're being tuned now you have nothing to worry about, but it usually drops to E75 in the winter months so your mix might be off.

 

It hasn't been that bad lately so the cold weather and dropping weight seemed to make a difference. I'm thinking it has to be something with the WG and load settings in the tune.

 

for winter i usually tell people go back to 93. its just easier to work with in the winter months

 

There is no winter, where I am. I wonder if the E85 is still different, though. I'll have to check.

 

I agree, wouldn't bother with E in the winter unless its real warm where you live.

 

when it starts to get cooler outside, the ECM will start to adjust timing/ fuel/ coolant in order to complete the emission tests faster, due to the fact there is less oxygen content in the air when it gets colder outside.. within the next couple of weeks, everybody's car will start to get a little snappier once the outside temps hold past 50-41 degrees..

turbo cars LOVES 60-45 degree weather, but the tires don't..

 

Just to clarify, colder air Has the same exact amount of oxygen as warm air given same altitude And actually has a higher density of oxygen Per volume

 

Haha You get offended so easily. I just meant that it's making a lot More power now that's all.