Results after full blown kit installed
 

after 3 weeks of waiting for my turbo kit to be installed it was finally finally time to see the results! the car omg is so freakin fast, spools quick hardly any lag, kit looks good, installation wasnt perfect but it got done, went and got my car washed 30 mins later, after babying it for a hr , i go in to wot in 4th getting on the high way, pulls hard, BUT then i hear this noise, this tapping noise, and it slows down as i slow down the speed, i immediately pulled over, popped the engine after cutting off the car, no leaks, no oil spill, nothing different, cut the car back on and i hear this constant knock and its loud as hell, instally thought it was a rod knock and it was exactly what i thought, my mechanic is taking the engine apart tommorow , idk what could have caused this to happen, the car was tuned from the base map sent from LJ, i even had the car tested for any leaks , that was good. A/F ratio was at 14.29 -14.59 idling, the high was 19 i think, i have a log on my computer of everything before it died, im really dissapointed right now, any suggestions? im already looking into buying Brian Crower rods for about 650.00 just to be on the safe side, not putting stock rods back in there,

Sounds like it died from detonation, different rods will not take care of that issue.


You will need to lower the compression or run E85 / higher octane fuel to avoid the detonation with your current setup.

what boost?

Correct me if I an wrong, but I've always thought that if going Turbo you had to beef up the internals of the engine before going live. Seems all I see is people getting only a tune.

At higher boost yes, but lower boost the stock block seems up to the task short term. Long term is unknown.

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Fix whatever burnt up and get a real tune. If I even saw anything near 14.59 afr on a turbo car I'd flip a shit, much less 19 under load, and wouldn't get back into boost until I got it tuned. I'm surprised it didn't pop sooner.

That really sucks man. It sounds like your tune was not good...14.5 afr at idle is normal for n/a cars, but under boost to be safe I would expect AFR's around 11.5-12.5 to be safe.

I have never seen a motor blow at idle, regardless of afr. In fact, I used to show students how to create detonation at idle on a motec so they know what it sounds like and feels like on a dyno, then have them richen the mixture and adjust timing, and I have never blown a motor like that in 10 years. I am a certified EFI tuner.

So afr of 14.59 or even 19 at idle will not blow up you motor. under load, it will not last long and that sounds more likely.

and to be honest, most tuners I have met usually do a poor job of tuning a car anyways. A real full tune on a car can take days to complete the correct way. all throttle position, all rpms, all loads. Most tuners don't do that because customers will get sticker shock.

when it comes to tuning, you get what you pay for.

What fuel as well.

I was not referring specifically to it at idle more so just the numbers period, yes I'm fully aware that pretty much whatever air fuel it'll run with at idle is "safe". I was really speaking in reference to his ~19:1 under load.

I have tuned several cars in the past with excellent luck, and you're fully right, the tune I was most proud of took me probably 40 hours of street driving to get 100% right. I don't know of any other J swapped integras that got 45 mpg and ran 12's with an unopened motor straight from a junkyard.

I fully agree with tuning you get what you pay for, I personally would never trust a "off the shelf" tune for anything other than an otherwise stock car, or just to get one started on some big injectors, from there it's time to get into the maps and compensation tables. I think spending 4 figures on tuning is realistic, hence why I personally won't rush out there to throw on a turbo kit with an off the shelf tune. I don't even trust myself to tune my own cars.

well... this was pretty much ur fault.

a baseman is to drive to car to a tuner or send some logs to @FullBlown to have it tweaked.

i have a full blown kit with 10k miles and no issues whatsoever but i had the base tune for 3 hrs till i got a much better tune.

This^ I trailered mine to the dyno and made 450+whp on the stock engine with a fullblown base kit.
The tune is everything. Took ALLLL DAY too.






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Was the fuel pump correctly installed? What boost? What fuel? Are these AFR's under load or idling? People are so quick to blame the tune but there are other reasons that engines blow. Hell who knows if he even had the correct about of oil in the car

The Frozen North

yep

I'm here making 450 whp on a Full Blown Kit with a GT28 and no issues

I'm here making 425whp on 91 pump tuned by LJ himself.

The Frozen North

Anyone running 550 injectors making 450?

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Do you have any logs at all from your vehicle after the turbo was installed? You were running on a base map, and unless we know more information as to what was going on in the logs it sounds like there could have been endless possible issues.

im not blaming the tune at all.... LJ is the best and he is one great tuner.
i ran his tune almost 4 months no issues at all

it also could be a bad fuel pump installation, maybe no o-rings

I wasn't meaning you @whitefrs you're good people lol.

The Frozen North

Good call on the fuelpump. That almost caused me an issue on the dyno. But like nelsmar said without a log diagnosing this over the internet is futile.

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the fuel pump was good well i think it was but there was no way for me to tell im no mechanic, the car pulled crazyyy, that didnt feel like 7 psi, the boost controller wasnt messed with at all, and my mechanic did mention somethin about lowering the compression to about 9 or 10 to run higher boost and getting stronger rods and pistons, i have 550 injectors and running the gt28 turbo, the tune loaded fine but i didnt have any of my racerom features at all, like 2step etc etc which wasnt my main concern, i babied the car as much as possible but that didnt work so i guess i will see the results tommorow after they take the engine apart, and i was on 93 premium, i was gonna send lj the log but my car didnt even last 3 hrs before the knocking took place which really sucks,

and i used the 0w20 motor oil, full synthetic, did a oil change too, hopefully its the just the rods that needs to be replaced which isnt that bad, i just want to be on the safe side and get a reflash as well

i was stage 2 tune, with uel borla headers, intake , perrin pully before and was fine but wasnt satisfied,

i came from 3 evos.

slapping on a turbo to a NA engine will require a tune before you start boosting.
seems like you leaned out your engine too much from the turbo sucking in too much air without adding fuel. running too lean will cause internal explosions that you dont want. literally. your engine was exploding in all the places internally.

idle you want around 14.7
boosting / wot you want around 11.5 afr.

sorry your car is down. i know its a horrible feeling.



idling is not as important as your 11.5afr wot. I think that's where you went wrong. your wot afr.

I'm confused. The tune you were running after the turbo was installed was a not a turbo tune?

You say you babied the car and yet u say it pulled like crazy at 7psi? Did you have a boost gauge on it?

The Frozen North

not sure who you mechanic is but if this car's fuel pump doesn't have the orings needed it will run lean and can cause a blown motor.

so ask them to check the fuel pump and take pics and post them

Is the person doing the autopsy the same person who installed the turbo?

How about posting the log here, or emailing it to me? I'll pm you my email. You are jumping the gun on a number of possible issues when the simple issue will be shown in the log...

i dont remember what my wot afr was but i will upload my logg from my ecutek file

yes the person doing the autopsy is the one who installed it, he said he went by the directions, he even said i was too lean, now he thinks i should lower the compression to 9 or 10 to be on the safe side but idk if i wana do that, i been researchin that all day , people have been having good success with this kit so im just completely shocked this happened to me, smh that terrible moment riding in a tow truck looking in the mirror seeing that sexy intercooler in the front bumper but cant drive it:mad0259:

it didnt blow at idle, it started knocking when i got on it

so where is the log? you said you would post it but just continued to not post it?

It's still not clear if the tune you were running was an FI tune.

Looks like the tune was for a 3 bar map. At idle it was 1.00 - 1.05 manifold pressure which is obivously wrong. If you take the math from atmospheric pressure from the stock map at idle and shift it you end up with 1.0-1.15 or so Bar with an omni 3 bar map sensor calibration being loaded in. But the map sensor alone shouldn't blow it up. If anything it should be adding additional fuel. Unless he was bouncing off of a boost cut, but even then most tuners typically completely disable the injectors so you wouldn't be getting a lean burn.

The log is worthless he sent it to me it is about ~5. =( Fuel trims are about right, afr is at stoich, but MAP is reading quite high.

Like... Pegged out? Beyond what the OEM MAP sensor can read? I'm only assuming at this point he was running a 1 bar MAP.

If you post the log it will be pretty easy to see if your fuel pressure is ok and what your afr was like during boost. Otherwise it's all speculation.
Stock internals will run 8psi (and more) easily with correct tuning, no need to drop compression ratio unless you are planning on chasing huge numbers. You could use this opportunity to build a stronger motor but you wouldn't need to drop c/r.

edit. Log was sent. posted at the same time.

Were you getting on it with the base map only, or was it tuned before you got on it. That part is a little unclear to me. You should never get on a basemap and generally keep it out of boost until it is properly tuned.

There are a lot of ways that it could have gone bad that without taking a close look at it, it is really hard to say. You're pretty close to Dynosty though. You might want to have them check things out.

I'm planning on boosting my car when I get back from this deployment, anyone know any good tuners in the NC/SC/VA area that are reliable and good tuners. I don't mind spending a lot of money on a tune I just want everything to be right.

They guy who installed it even said it was too lean but you still went and beat on it? I still say the fuel pump install is at fault here but I'm sure the guy will say no even if it was just to save his reputation. Get the logs to LJ asap and he'll tell you what happened.

The Frozen North