here is some background info

pfab elt stage 2
aem ems v2
id1000
omni 4 bar

bullseyepower s256 (think 30r turbo)
pump gas 93oct

i was at my tuning day. car was on the dyno for about 3-4 hours. had issues with wastegate , wastegate lines.

2nd or 3rd pull WOT the motor pops and shoots smoke everywhere out of the motor. vavle cover, DUMPING blue smoke out of my catch can filter.

the wastegate line melted and over boosted (apparently) tuner told me he cut it manually as soon as he saw and that he had provisions in the tune for timing/fuel incase of this happening. i don't really see it.

there is a crater on cylinder 4 on the exhaust side. there also appears to be what started to form a crater on the exhaust side on cylinder one

the motor was healthy prior to dyno. freshly changed oil with 5 qts loaded feed line of 10-30 rotella.

it has come back that my "half-assed turbo build" is what blew the motor.

here is the timing chart. wastegate spring was 14psi. aemlog was not being used at any point of this tune



here is another map i have that didnt blow up on the dyno


cylinder 4. exhaust side. cylinder 1 is almost identical

 

No boost cut?

 

No boost cut

 

well theres ur answer, u over boosted ran super lean and boom

 

did the shop or tuner tell you your car was "half ass built"? seems as though they are just throwing away the blame but thats the risk you take. no shop would warranty their tuning. you just have to find a guy you trust and has a good reputation

 

Let me preface everything with I'm not a professional, however just cause you're paying someone doesn't mean they have a flipping clue. I've seen boost maps with empty fuel cells, break points to 20+ psi on 12psi SC'd motors, all kinds of crap and yes they were done by professionals. The person who I went to for an etune had no idea about aem's temp calibrations being off. I had to set them up as well as the whole base map.

Back to you. Just looking at your maps, your new map is considerably more aggressive than your safe tune. Heck you're running almost 18 degrees timing at 14 psi and 9k compared to 14 on your other tune. That's not crazy timing, but quite a few folks around here run about 14-16 degrees timing at that boost pressure and rpm which is where your first map is at. My timing is also around 14 degrees up top as well. You're running 23-24 degrees timing at almost 11 psi compared to around 14 degrees on your other map. It sounds like your wastegate issues ended your day, but that new map is undeniably more aggressive. Additionally, as a professional, I'd never use that language. If I was in any way denigrating to any clients, I'd be talking to my director and or client relations. Insulting customers is never a good policy and reflect poor business practice.

Last, while there is no hard fast rule regarding this, your tuner has break points up to 41 psi. In fact you have four points dedicated for psi 25 and higher where you will NEVER be on pump gas. Why "waste" the resolution? Your other tunes break points are more reasonable.

 

Any reputable tuner would not tune without having a boost cut setting. If he indeed tuned without a boost cut in place that would just be plain lazy on his part.

 

yea not really looking for any reimbursement just some answers from some people outside of the area that are familiar with these cars

 

23-24 degrees timing Is over kill on this motor or any stock motor. well that says it for me.

 

the fuel tables were set up ok it seems. comparable to the "original tune" map. the tuner told me he got out of it as soon as the line popped. so if he says it is the lines fault, but he got out of it... wait im confused here?!


this tuner recently (as of yesterday) officially announced he is no longer tuning hondas due to poor quality builds. this announcement was made a few hours after i laid into him about my car blowing on the dyno and speaking to other tuners/people.

my car was called half-assed by someone who is helping him tune LS powered vehicles