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S366 ebay clone - anyone run this specific one?

 
Old 12-14-2018, 05:07 PM
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Originally Posted by Forcefed86 View Post
No, those are small t3 housing 62/62's and the ball bearing thing is a gimmick. U can get the cast journal bearing gt3582s for 160$ shipped.

Call up vs racing and grab the 61/65s in a small t4. Or the 67/65s or 70/75s if u want more than 1000ish crank.
i'm assuming since the 5.3 is a much larger displacement is why it wouldn't work with a twin t3 setup then? these guys made 711whp with this turbo on a 2.0L (stock head/cams, forged bottom end) with 21psi


i've run a twin set of precision journal SC61's before and didn't mind it - just seemed a little slow to spool. that setup was a T56 though and this one will be a 4L80e so that may not matter.

btw - thanks for the feedback Forcefed - i've read all your builds and they are really impressive. your feedback is really why i'm asking here lol. i may just go with the norm VSracing 80 or 88 that everyone runs and be done with it, just wanted to try something new but not worth doing if you think it won't meet my goals.
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Old 12-14-2018, 08:53 PM
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That's correct, they run at completely different pressure ratios on the small engines. I have 3582 T3's on my 5.3 with upgraded billet 64mm compressors. The T3 housings are tiny, even for a 5.3 and they light off instantly. I def. wish I would have went with the T4 housings.

These are them and they took a $250 offer. And mine had V band outlets. I believe they have the T4 option you can request as well.

https://www.ebay.com/itm/Upgraded-GT35-GT3582-GTX3582-Billet-Wheel-Universal-Performance-Turbo-T3-0-63A-R/132248415414?hash=item1eca9eacb6:g:08oAAOSwJxlZjT3 G&vxp=mtr



You want the larger exhaust wheels and housings. Esp. since you plan on going to a larger engine down the road. Last I spoke with Viren the 67/65's were $320 And the 61/65's were $250. The 61/65's on a 6.0 have made 980whp or so that I'm aware of...possibly more.

Last edited by Forcefed86; 12-14-2018 at 09:10 PM.
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Old 12-14-2018, 10:20 PM
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Originally Posted by Forcefed86 View Post
That's correct, they run at completely different pressure ratios on the small engines. I have 3582 T3's on my 5.3 with upgraded billet 64mm compressors. The T3 housings are tiny, even for a 5.3 and they light off instantly. I def. wish I would have went with the T4 housings.

These are them and they took a $250 offer. And mine had V band outlets. I believe they have the T4 option you can request as well.

https://www.ebay.com/itm/Upgraded-GT...lZjT3G&vxp=mtr



You want the larger exhaust wheels and housings. Esp. since you plan on going to a larger engine down the road. Last I spoke with Viren the 67/65's were $320 And the 61/65's were $250. The 61/65's on a 6.0 have made 980whp or so that I'm aware of...possibly more.
nice - i didn't realize Viren sold turbos beyond what was on his website. I'm guessing this is the same turbo below?

https://www.ebay.com/itm/CXRacing-T4...frcectupt=true

sorry for all the questions - would you run those twin 67/65s over a billet 88? seems like when you include the extra gate and downpipe cost they would run about the same. car is going to be a BMW E90 so package is a concern for the 88, those 67/65s do look pretty small and easy to package
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Old 12-15-2018, 09:55 AM
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Yup, likely the same. Would be close, but if setup right i think youd have the edge over the billet s480 with the twin 61s. Shud have less back pressure and you could cam it more aggressivly to make more power per pound.

The 61s will be best suited for a typical 5.3 IMO. Each step up in compressor will net u more flow but slow response. Id go 70/65s for a 408. And 61/65s for a 5.3-4.8. 67s would be middle ground and ive never seen a set on an LS yet. Might ask Viren if he has any customers running them.

Last edited by Forcefed86; 12-15-2018 at 10:17 AM.
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Old 12-15-2018, 10:10 AM
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Originally Posted by Forcefed86 View Post
Yup, likely the same. Would be close, but if setup right i think youd have the edge over the billet s480 with the twin 61s. Shud have less back pressure and you could cam it more aggressivly to make more power per pound. Also a better match for the larger cube future plans.

The 61s will be best suited for a typical 5.3 IMO. Each step up in compressor will net u more flow but slow response. Id go 70/65s for a 408. And 61/65s for a 5.3-4.8. 67s would be middle ground and ive never seen a set on an LS yet. Might ask Viren if he has any customers running them.
all the advice is much appreciated, thanks again. i'll reach out to VS and see if he has any LS combos running the 67s yet. since they are so cheap i may just 61s as you suggested and upgrade later.
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Old 12-31-2018, 03:35 PM
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Originally Posted by 2005vetteTT View Post
all the advice is much appreciated, thanks again. i'll reach out to VS and see if he has any LS combos running the 67s yet. since they are so cheap i may just 61s as you suggested and upgrade later.
I'm looking to run twins on my LS-1 for my 79 Vette. I did the calculations on matchbot, 8-10 psi, from 2k to 7k at 1k rpm increments, and plotted them on the map for the 3582. Looks like a twin installation places them squarely on the map. I'd be interested to see why they won't work with some technical analysis to back it up.



Last edited by squared; 12-31-2018 at 03:59 PM.
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Old 01-05-2019, 07:16 AM
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Man, I was gonna go buy a pair of those "John Deere" turbo's just cuz of the name on them and they are gone, lol. I wanted to slap them on something just so I could say "you just got your *** drug by a couple of tractor turbos!!" lol
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