Disassembled Motor - Piston Carnage Pics
#21
Good Lord....... I didn't realize that this was the same engine the OP originally had built by IP with all the rebuilds and issues after Jeremy Allen left. I thought he already moved on for some reason and either went to Jeremy to correct or went another direction with a new builder, or OEM. This is just getting out of hand at this point with IP, and they need a new builder or need to farm out their builds to Jeremy even though he isn't at their shop any longer.
Including the original motor I bought the car with, this will be motor #5. 4th time getting it rebuilt. Ha.
I'm obviously extremely determined (dumb) to have a supercharged track car. I've been going round and round with this since 2019.
On the first failed motor with inline pro, I paid for parts and they did free labor putting it back together. One the second rebuild from inline pro they covered everything except the new block that I needed from the bore scoring. On the third rebuild from inline pro they strongly suggested I "upgrade to CP pistons" and I believe I told them to put a new oil pump and full new timing set in it as well. That one was a couple grand in parts again, and free labor.
I've never asked or looked for any kind of refund from them. I always figured it was so variable between them and them not knowing exactly what I was doing with the motor once it left there, etc.. I just assumed it was gonna be a no way.
#22
#23
#24
I've heard excellent things about a company called 4 piston or piston 4.. something along those lines. I think they're in the chicago area but I hear their builds are like $20k for an engine or some such.
#26
#27
@Billman250 I am curious as well. I know @AP1Chief does as well. HIs service is very, very good.
#30
I spent about 1.5 hours with Jeremy today as I dropped off my motor/cylinder head for rebuild. Long story short, there are clear signs on my piston beyond the broken ring that show melting from detonation, even though the plug doesnt show signs of detonation. He suspects I have a fueling issue.
So, while this motor gets rebuilt, I'm going to dive down the rabbit hole of somehow troubleshooting/testing my fuel system without a motor in the car. Also, I'm going to probably switch out my EMS to something with failsafes for fuel pressure and voltage.
I current have a 255 walbro fuel pump with the SOS larger regulator thing in place with 1050x injectors on the stock 2006 returnless fuel system. Injectors only hit 80 some percent duty at 14psi so fueling was never a concern, however that was not in a track environment so I dont know if that would have an effect on the fueling when it comes to this or not.
Also we discussed the fact that my alternator recently died on track, causing all kinds of crazy voltage errors and it was way overcharging the battery.. so my AFR sensors, fuel pump and injectors all may have not had the proper voltage going to them causing a lean condition. Of course the alternator died at the end of a 130mph straight when I was at redline/full boost... so if this did happen, it wouldve only taken a second of leaning out to cause all this.
Any recommendations on fuel system changes I should make/check out?
So, while this motor gets rebuilt, I'm going to dive down the rabbit hole of somehow troubleshooting/testing my fuel system without a motor in the car. Also, I'm going to probably switch out my EMS to something with failsafes for fuel pressure and voltage.
I current have a 255 walbro fuel pump with the SOS larger regulator thing in place with 1050x injectors on the stock 2006 returnless fuel system. Injectors only hit 80 some percent duty at 14psi so fueling was never a concern, however that was not in a track environment so I dont know if that would have an effect on the fueling when it comes to this or not.
Also we discussed the fact that my alternator recently died on track, causing all kinds of crazy voltage errors and it was way overcharging the battery.. so my AFR sensors, fuel pump and injectors all may have not had the proper voltage going to them causing a lean condition. Of course the alternator died at the end of a 130mph straight when I was at redline/full boost... so if this did happen, it wouldve only taken a second of leaning out to cause all this.
Any recommendations on fuel system changes I should make/check out?