Results after full blown kit installed

[frs87]

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,

[Crawford Performance]

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.

[Reaper]

what boost?

[BRZnut]

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.

[jflogerzi]

Originally Posted by BRZnut

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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[Crazy Drew]

Originally Posted by frs87

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?

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.

[Basket Case]

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.

[mmsracing]

Originally Posted by Crazy Drew

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.

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.

[Tromatic]

Originally Posted by Reaper

what boost?

What fuel as well.

[Crazy Drew]

Originally Posted by mmsracing

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.

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.

[whitefrs]

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.

[Reaper]

Originally Posted by whitefrs

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.

Originally Posted by whitefrs

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.

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[Dipstik-sportech]

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

[whitefrs]

Originally Posted by Reaper

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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yep

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