FP 18g 6SL2 - common failure?

[99gst_racer]

FP no longer offers this turbo and I could have sworn that there was a thread or two around here full of negative remarks regarding this turbo's longevity. Am I dreaming or am I just not picking it up in my searches?

Was the reason that this turbo went away due to too many of them failing prematurely?

 

[dsmdeliveryboy]

FP no longer offers this turbo and I could have sworn that there was a thread or two around here full of negative remarks regarding this turbo's longevity. Am I dreaming or am I just not picking it up in my searches?

Was the reason that this turbo went away due to too many of them failing prematurely?

I'm running this turbo on the GSX at 21psi with over 3k miles on it, still 0 shaftplay yet everyone wants to talk shit about it. I also emailed FP, they said they discontinued it because with the 68HTA there really isn't any reason to have the 18g anymore but they still offer full service on them and rebuilds. If you want one, buy one. I love it, has tons more torque than a 16g and boost hits much harder.

 

[Ceddy]

I don't think the SL2 turbine is available for for purchase as a genuine MHI product or something. They seem to crap out long before the TD05H/6/6Hs do when pushed hard. (I don't consider 21 psi, pushed hard)

I remember threads on few other boards. But not sure if cross-linking is allowed.

 

[red1993gsallmt]

mine died after 2k mi, but ive had my holset for over 10k mi and pushed it harder then i ever pushed my fp18g. mitsu turbos are very good but those fp 6sl2 18gs looked like knock offs

 

[JusMX141]

There are a handful of reasons I'd never run one.

First off, the turbine wheel, turbine housing, compressor cover, and wastegate actuator were not Genuine MHI parts. They were made in Taiwan by the same company that made the Evo III GT turbos for Turbochargers.com a while ago....and if you recall, the earliest Evo III GT's from TC.com had serious turbine breakage issues.

Another reason I'd never own one is the sole fact that the turbine wheel itself is not a MHI part, meaning it did not come standard on anything and could easily disappear from the shelves of Taiwan turbo part suppliers without us even noticing. What that means is five years from now, when you want to have a new turbine installed because yours is a little grooved, none of the available turbines will fit your housing so you'll need to replace the housing as well.

I can't speak for the random failures that some 18G-6SL2 owners have suffered from because I've never witnessed one myself, but most of the owners who have suffered a blown turbo are reporting excessive in/out play, showing that there may be a problem with the thrust system.


Give me a MHI 18G with a TD05H turbine clipped 15*-20* and I'll show you a turbo that will flow just as much air and have full MHI reliability. There's a reason that FP went back to the TD05H turbine that they used on 18G's for years when they built the new HTA68....a turbo with a compressor that flows more air than the 18G ever could.

 

[Talon64]

I had one last 2k miles than it ate itself. Called fp and the rebuilt it for free and now been beating the piss out of this turbo for 15k and no shaft play. I mean beating the piss out of it. Run it at 28 and than said fcuk it and had to pass the 30 mark so where to see what I can do against my buddies evo. I found out. Poor head lifted little and still pullled like crazy to redline. Now its getting full mark over thanks to jnz! Cant wait to get her back

 

[99gst_racer]

Thanks for the info, guys.

We had thought we had one crapping out at only 190 miles on my roommate's 2G, but we confirmed last night that it's fine. I'm glad I know a little more about this turbo now though.