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Stick the opening of it behind a radiator that Doubles the Ambient temp before it even compresses anything 1 psi and see how far it goes.
I did... multiple times on multiple cars.
Originally Posted by TT427
Wondering about the 369, have heard it doesn't perform as it should on "paper " on a v8... please keep us informed it does t get much publicity to date.
Originally Posted by Forcefed86
My issue with a decked out S300 series is you’ll pay more than you would for the S400 series. Makes more sense with those cubes and goals to go with the S475 IMO. You can go with the small exhaust wheel 1.10 T4 S475 and easily meet those goals.
I also don’t understand the SX-E 369’s claims. Maps show their LBS per min on par with the S475. Yet on a DBrods twin setup they perform poorly when compared to the base cast S366s they replaced. Would be cool to see a direct comparison on a single for sure. Keep us updated!
Depends on where you look, some people are having good success with them. As far as price it depends on where you shop, I've seen people get a pair of SXE 366/369 for less then one billet S476.
I saw them compared to a 75mm turbo and a smaller Precision turbo, I must have missed the S366 comparison. If I recall DBRods isnt scared to turn the boost up so he should have seen some decent top end. If he's not making north of 1400whp on that boost then something is wrong with the setup. I think he's into roll races, not leaving the line already rockin. I saw lag mentioned in the comparison but lag for one setup isn't necessarily lag for another. A turbo some guys call laggy we leave the line on boost and hit 35lbs before the 60' marker so it just depends.
I was wrong above. Guess he started with Turbonetics Tseries Billet 75/68s. Then went to the SXE 369’s and lost 200hp at 26psi on a 5.3. The SXE units were down on spool time by 2000 rpm as well. Put the 76/68’s back on and picked the power back up.
Later in the thread he goes on to show some pics of the housings on the old S366 VS the SX-E 366. Thinks the compressor housings aren’t designed to flow air like the older units. They do look a lot more restrictive in the pics.
I was wrong above. Guess he started with Turbonetics Tseries Billet 75/68s. Then went to the SXE 369’s and lost 200hp at 26psi on a 5.3. The SXE units were down on spool time by 2000 rpm as well. Put the 76/68’s back on and picked the power back up.
Later in the thread he goes on to show some pics of the housings on the old S366 VS the SX-E 366. Thinks the compressor housings aren’t designed to flow air like the older units. They do look a lot more restrictive in the pics.
Odd, you have guys on other forums making 1000 on 15psi, 1400 on 25psi on S369's without complaints of spool. But if you're leaving the line at 5000 spooled up who is really going to complain? With the larger hotsides the 369's could probably take more timing as well so was the same tuneup used or optimized for each setup?
Comparing a 69 vs a 75 compressor on the same boost is hard too, I would turn the boost up on the 69's to at least give it a fighting change of moving the same air! All things being equal the results were expected to me... smaller hotside spools faster, larger compressor moves more air, nothing shocking there. Turn the boost up, more lb/min from compressor, see if the larger hotside can flow more to make more power up top.
I like how this thread for a single turbo turned into a thread for twin turbos... I give up... f@#% turbos
well the borg 66mm has seen 600hp as a single before but you are pushing it to the limit at that level. Just step up to an s475 that way you have room to grow. You can get it in a t4 turbine and should have no problem lighting it with the 346.
I like how this thread for a single turbo turned into a thread for twin turbos... I give up... f@#% turbos
You are asking about an uncommon setup to start. Then complaining about the people trying to help. There’s a reason you don’t see single S300 based turbos on relatively large cube engines. The S400 series is better suited. We used the examples we have since S366’s are typically used as twins, not singles. The information is all relevant. If the SXE works better in twin configuration, it will work better as a single. Same with the Cast and upgraded S300 series options.
Best answer to your question is to ditch the S300 idea and use what’s proven to work well on an engine with your cubes.
You are asking about an uncommon setup to start. Then complaining about the people trying to help. There’s a reason you don’t see single S300 based turbos on relatively large cube engines. The S400 series is better suited. We used the examples we have since S366’s are typically used as twins, not singles. The information is all relevant. If the SXE works better in twin configuration, it will work better as a single. Same with the Cast and upgraded S300 series options.
Best answer to your question is to ditch the S300 idea and use what’s proven to work well on an engine with your cubes.
Spending over an hr on the phone with a tech from Borg, pointed me in the S300SX-E dirrection. He explained that a 346, with the S475 with a manual transmission would be a dog on the bottom end and won't come into boost until late, then loosing all boost during shifts.
. He explained that a 346, with the S475 with a manual transmission would be a dog on the bottom end and won't come into boost until late, then loosing all boost during shifts.
you would have absolutely no issue with transient response with an off the shelf 475 shifting at 6500.
But, just listen to him then. The rest of us who have run these setups on actual cars have no idea what thee **** we are talking about.
I’d ask him how many LS1 he’s personally worked with running an S366 of any kind. The t4 S475 at those cubes will light off very quickly if setup correctly. I’ve worked on a couple easily meeting and exceeding your power goals. Can’t imagine needing quicker spool.
I’ve never worked with an S366 at LS1 cubes before though. I’d imagine it would spool great and be pumping hot air by the time it hit your 650whp goal… if it did. Will be great to see what the SXE can do though! Let us know how it goes… They rate it right up with the S475’s so I may be completely wrong. (hope I am) Wouldn’t be the first time! Good luck
you would have absolutely no issue with transient response with an off the shelf 475 shifting at 6500.
But, just listen to him then. The rest of us who have run these setups on actual cars have no idea what thee **** we are talking about.
I didn't say I was listening "to him" which is why I made this thread. I also never said to anyone that they don't know what they are talking about. I obviously don't which again is why I made this thread.
I’d ask him how many LS1 he’s personally worked with running an S366 of any kind. The t4 S475 at those cubes will light off very quickly if setup correctly. I’ve worked on a couple easily meeting and exceeding your power goals. Can’t imagine needing quicker spool.
I’ve never worked with an S366 at LS1 cubes before though. I’d imagine it would spool great and be pumping hot air by the time it hit your 650whp goal… if it did. Will be great to see what the SXE can do though! Let us know how it goes… They rate it right up with the S475’s so I may be completely wrong. (hope I am) Wouldn’t be the first time! Good luck
Im dealing with Borg only part numbers. Borg does not make a T4 S475
Im dealing with Borg only part numbers. Borg does not make a T4 S475
You will need to broaden your outlook beyond shelf stock Borg Warner part numbers since they never made a turbocharger for a factory LS motor. Get in contact with Jose at Forced Inductions about which turbine housing to get on which turbo to accomplish your goals. Job done.
Spending over an hr on the phone with a tech from Borg, pointed me in the S300SX-E dirrection. He explained that a 346, with the S475 with a manual transmission would be a dog on the bottom end and won't come into boost until late, then loosing all boost during shifts.
This just sounds like bad info... i'm running an S484 on less cubes, with a manual trans... what he's explaining does not happen... period.
here you go, tell me how long that takes to spool up lol
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The rest of us who have run these setups on actual cars have no idea what thee **** we are talking about. 
