Rubi PTE6062 Build - 615WHP 510WTQ

[zdriver]

Just re-read this, love how well you buried the FMIC. I'm sure i'll run into you as soon as it warms up here and my work hours become alittle more 'normal'

[mushasho]

Just re-read this, love how well you buried the FMIC. I'm sure i'll run into you as soon as it warms up here and my work hours become alittle more 'normal'

It's completely stealth, ain't it? :???: thanks Chris.... Hope you feel better soon and can get that thing tuned soon... BTW, you going to Staggered tomorrow?....

In other news, Today I sent in my PTE5857 to Precision for an upgrade... After much debate with many folks on choices (58mm, 62mm, .64 or .82 a/r) I narrowed it down to 2 options:

a) a 58mm on a .82 housing and run a high boost (+30 psi) tune

b) a 62mm on a .64 housing on a sub 30psi tune

I'm leaning towards option B for some reason. Unless further data & investigation could dictate a better compromise between spool & power, I'm probably gonna end up going this route...

Feel free to discuss as PTE will have the turbo Monday and I could switch up the order first thing...

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[EDIGREG]

Thanks Ed... Are you up early getting your 40 ready?

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40?

[Hank]

I'd probably stick with the .82 5858. You can make close to 500whp on a good tune with reasonable spool. If you grow out of that, you can always sell that turbo and upgrade to a 6262 or whatever.

The cost to be 600whp is a lot higher than 500whp, as clutches stop being cheap, valvetrain must see constant 8500 to have a good powerband, 7a cams stop being sufficient, dual pumps start being needed as well as upgraded lines, ect. 500whp is still somewhat of a built motor, clutch, inejctors and turbo away from being there.

I see too many projects stall from going to stage 5 in one leap instead of taking bounds that get you there. If you have the $$ and time now, go for it!!

[mushasho]

Thanks Ed... Are you up early getting your 40 ready?

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40?

"40's in a bag" meet but after much thought, it actually took place quite aways from you...

I'd probably stick with the .82 5858. You can make close to 500whp on a good tune with reasonable spool. If you grow out of that, you can always sell that turbo and upgrade to a 6262 or whatever.

The cost to be 600whp is a lot higher than 500whp, as clutches stop being cheap, valvetrain must see constant 8500 to have a good powerband, 7a cams stop being sufficient, dual pumps start being needed as well as upgraded lines, ect. 500whp is still somewhat of a built motor, clutch, injectors and turbo away from being there.

I see too many projects stall from going to stage 5 in one leap instead of taking bounds that get you there. If you have the $$ and time now, go for it!!

I'm thinking less back pressure with the 62hotside helping extract the most out of that 58billet comp wheel. I don't wanna run into a similar situation as owners of GTX3076r & HTA3076r where the turbine holds back it's full potential regardless of a/r it's placed in. As you already this is the reason why GTX3576 was created and the 5862 is dimensionally similar to it.
Think the 58mm in a .82 is an improved enough wheel that won't choke like the 30series Garrett wheel? It's been hard to find data on the web to know for sure... I just wanna be safe...

Oh and when I shoot for 600 it'll be in another platform as I agree 500 I think is the monetary sweet spot on a 20vt..

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[EDIGREG]

Ah, no I won't be there...Carlisle and SFest as usual.

[themagellan]

Thanks Ed... Are you up early getting your 40 ready?

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40?

"40's in a bag" meet but after much thought, it actually took place quite aways from you...

I'd probably stick with the .82 5858. You can make close to 500whp on a good tune with reasonable spool. If you grow out of that, you can always sell that turbo and upgrade to a 6262 or whatever.

The cost to be 600whp is a lot higher than 500whp, as clutches stop being cheap, valvetrain must see constant 8500 to have a good powerband, 7a cams stop being sufficient, dual pumps start being needed as well as upgraded lines, ect. 500whp is still somewhat of a built motor, clutch, injectors and turbo away from being there.

I see too many projects stall from going to stage 5 in one leap instead of taking bounds that get you there. If you have the $$ and time now, go for it!!

I'm thinking less back pressure with the 62hotside helping extract the most out of that 58billet comp wheel. I don't wanna run into a similar situation as owners of GTX3076r & HTA3076r where the turbine holds back it's full potential regardless of a/r it's placed in. As you already this is the reason why GTX3576 was created and the 5862 is dimensionally similar to it.
Think the 58mm in a .82 is an improved enough wheel that won't choke like the 30series Garrett wheel? It's been hard to find data on the web to know for sure... I just wanna be safe...

Oh and when I shoot for 600 it'll be in another platform as I agree 500 I think is the monetary sweet spot on a 20vt..

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You make me so jealous haha

[mushasho]

Just woke up thinking PTE5862 on a divided T4 housing and a QSV... :-?

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[chaloux]

Just woke up thinking PTE5862 on a divided T4 housing and a QSV... :-?

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Yea buddy! now we're talking

[loxxrider]

Lol last thing you think about before you go to sleep and first thing when you wake up, huh? I know that feel bro!

[mushasho]

Just woke up thinking PTE5862 on a divided T4 housing and a QSV... :-?

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Yea buddy! now we're talking

Possible full spool by 3300-3500 RPM? Maybe.?... The problem is the only 1 option of "T4 Divided .84 A/R with 3 5/8" V-Band discharge" ... Bigger a/r option would be cool & not sure what Hank says about the V-Band OD size...

[chaloux]

Weird, what about t3?

[mushasho]

BTW,
PTE 5862 running 590whp at 32psi on e85 with a 2.2 3b... 7a cams and HD springs...



Unknown a/r, exhaust setup and injectors... PM sent for more details...

[mushasho]

Weird, what about t3?

- T3 .63 or .82 A/R with 4 bolt (2.5") discharge
- T3 .63 A/R with 5 bolt discharge (with or without wastegate hole)
- T3 .63 or .82 A/R with 3" V-Band discharge

[chaloux]

I'd still rock a .8 housing with a qsv. The point is that when it opens up you're not creating the problematic backpressure. If you kept it closed the whole time, yeah, problem.

[chaloux]

And, you really want a turbine housing that is correct for the car and turbo. If you'd run a .82 normally, use an .82 with the qsv. I'm not sure that the 5862 would really benefit from a bigger housing going on the assumption that in that graph you posted he's using ~.8ish housing. That's an assumption so I could be wrong. But if you'd only net another, say, 15whp for a 300rpm loss in spool it's not worth it (imo). I mean heck, if the 30r can still push 25+psi on a .63 ALL THE TIME then I don't think that that big of a housing is necessary to see the full benefit of the qsv.

/bench racing

[mushasho]

And, you really want a turbine housing that is correct for the car and turbo. If you'd run a .82 normally, use an .82 with the qsv. I'm not sure that the 5862 would really benefit from a bigger housing going on the assumption that in that graph you posted he's using ~.8ish housing. That's an assumption so I could be wrong. But if you'd only net another, say, 15whp for a 300rpm loss in spool it's not worth it (imo). I mean heck, if the 30r can still push 25+psi on a .63 ALL THE TIME then I don't think that that big of a housing is necessary to see the full benefit of the qsv.

/bench racing

I hear you.... plus a .63 on a 35r sized turbine would still create less back pressure compared to a .63 on a 30r ... I just wanna extract all that liitle 58mm compressor could possibly put out on a 2.2L going 7800rpm-ish ... I doubt we can max the turbo out within these parameters.

[Hank]

Looking at that dyno, the 5862 has promise. It is a lot easier to swap compressors down the road than have to buy another turbine, plus housing. I think 5862 on a .82 is what I would get if I was jumping over to PTE stuff.

[loxxrider]

That really is a monster of a turbo

[mushasho]

Got off the phone with PTE... Spoke to "Grant" (had a heavy southern accent)... anyhow I went ahead with a PTE5862 but in a .64 Exhaust housing. As Hank says about swapping parts, it's easy to also swap out on exhaust housing to a bigger one for like $200 if the .64 doesn't provide the goods AND in record time thanks to V-BAND IN/OUT. As cool as the QSV idea sounded in last nights dream, I rather a gasket/leak free seal of V-Bands...

Going .5mm on the Exhaust Valves with a gasket matched and lightly Port & Polished head (read noob, done by myself) should help spin the 62mm turbine up... hopefully I won't feel like I missed out on the better spool of the 58mm option.

Now if my local or distant parts supplier would gladly privately message me on my inquiry for these, I could then move on to the next topic at hand ...Wastegates

I would like to run about 30psi, making it wastegate decision time. Many folks have had cool success with the stock one at this level. not sure if there will be "packaging constraints" with the IMS header... I could literally careless about water-cooled options ATM.

TIA....

[themagellan]

[mushasho]

Off we go to get this unassembled for the machine shop to cut the seats for +.5mm valves...



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[mushasho]

Head Break Down



Enough for tonight. Tomorrow I'll do valve extraction...

[mushasho]

Ended up ordering:

"Ferrea 6000 Series Competition Valves
The 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue resistance and tensile strengths than our competitor’s best offerings.

To manufacture the valves we use our exclusive two-step slow forging process using EV8 stainless steel on both intake and exhaust valves.We provide a special heat-treatment and stress relieving process, along with hard chrome stems and friction-welded hard tips. We finish with a swirl polished head. The valves feature flow improvements to deliver the power needed for today’s sophisticated racing engines."


http://www.ferrea.com/6000-Series-Competition-Valves/c7519

From HERE

Going with Supertech for the HD valve springs as the Ferrea Springs require use of their retainer = $$$ that must be used elsewhere ATM....

Stay tuned...

[chaloux]

What's your eta for this build? Just whenever it's done?