Author Topic: Turbo Options  (Read 515 times)

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Online Top Speed

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Turbo Options
« on: June 25 2020, 07:40:00 PM »
Lets talk about turbos.  My Limit Engineering TA61 just recently started smoking at idle.  Only put 6,000 miles on it in 15 years of street driving, but I like to get on it when the opportunity exists.  Is there a similarly sized modern turbo with better characteristic s, or should I just send in my old tech turbo for a rebuild?  Combo below will stay the same except for the turbo.
« Last Edit: June 25 2020, 07:46:20 PM by Top Speed »
Champion Irons w/T&D roller rockers, TA-61 turbo, 206/206 Comp Cam,  57 lb/hr Siemens Injectors, 3000 stall PTC, PTE Plenum w/RJC Power Plate, 70 mm Accufab Throttle Body, RJC 325 Megacooler, TurboTweak 5.7/ Alky Control w/M1 methanol, 23 psig on the street, Puddn' Power engine, Borla Exhaust

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Offline Steve Wood

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Re: Turbo Options
« Reply #1 on: June 25 2020, 08:02:48 PM »
6262
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Offline Scoobum

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Re: Turbo Options
« Reply #2 on: June 25 2020, 09:19:38 PM »
The 6262 is a legitimate bottom 10 turbo...with the proper mods...and tuning. You'll be able to spool it with the convertor you already have. I ran 7 flat at 100 all day long with my 6262 on 23 PSI, a 1.68 launch and an easy tune. Vids are on my channel to back my mouth up.
« Last Edit: June 25 2020, 09:24:07 PM by Scoobum »
109 235 Cubic Inch Stock Stroke Balanced Rotating Assembly
Stock Crank
TRW .030 Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
JB Racing Heads
Stock Rockers
5.7 TT Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-25 PSI

I see slow people

Offline TexasT

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Re: Turbo Options
« Reply #3 on: June 26 2020, 08:39:02 AM »
How much are you wanting to spend? 
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Re: Turbo Options
« Reply #4 on: June 26 2020, 08:45:53 AM »
Some needs to stick this in a Buick turbine housing. https://turbo4less.com/product/vsr-next-gen-62-62-dbb-billet/
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Re: Turbo Options
« Reply #5 on: June 26 2020, 11:15:46 AM »
Don't really want to spend $2000 on a PTE 6262 CEA Gen 2, but it sure would be nice!  I am thinking a preluber on the turbo would have extended the journal bearing life.
Champion Irons w/T&D roller rockers, TA-61 turbo, 206/206 Comp Cam,  57 lb/hr Siemens Injectors, 3000 stall PTC, PTE Plenum w/RJC Power Plate, 70 mm Accufab Throttle Body, RJC 325 Megacooler, TurboTweak 5.7/ Alky Control w/M1 methanol, 23 psig on the street, Puddn' Power engine, Borla Exhaust

Chris

Offline Steve Wood

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Re: Turbo Options
« Reply #6 on: June 26 2020, 01:38:37 PM »
I doubt it on the preluber....

I think a journal bearing 6262 is what you need.  $1134 at Full throttle speed.  Did not look elsewhere
Steve Wood

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Offline Scoobum

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Re: Turbo Options
« Reply #7 on: June 26 2020, 09:22:22 PM »
Go with the journal bearing like Steve says. Watch how fast my JB spooled. 2 seconds...and a .536 reaction time. I don't take prisoners.


https://www.youtube.com/watch?v=QFjkrBgHMCc
109 235 Cubic Inch Stock Stroke Balanced Rotating Assembly
Stock Crank
TRW .030 Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
JB Racing Heads
Stock Rockers
5.7 TT Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-25 PSI

I see slow people

Offline Steve Wood

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Re: Turbo Options
« Reply #8 on: June 26 2020, 10:18:32 PM »
And order it with the ported S cover which in optioned for that price
Steve Wood

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A lot of broken parts does not make you a racer; it makes you a slow learner.

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Re: Turbo Options
« Reply #9 on: June 27 2020, 09:40:13 AM »
I hear ya.  I will check it out.  Do I need a chip revision from Eric to support the 6262?
« Last Edit: June 27 2020, 10:44:56 AM by Top Speed »
Champion Irons w/T&D roller rockers, TA-61 turbo, 206/206 Comp Cam,  57 lb/hr Siemens Injectors, 3000 stall PTC, PTE Plenum w/RJC Power Plate, 70 mm Accufab Throttle Body, RJC 325 Megacooler, TurboTweak 5.7/ Alky Control w/M1 methanol, 23 psig on the street, Puddn' Power engine, Borla Exhaust

Chris

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Re: Turbo Options
« Reply #10 on: June 27 2020, 10:59:08 AM »
Contact Eric about how much air your turbo flows compared to the 6262. He may have to add some fuel.
109 235 Cubic Inch Stock Stroke Balanced Rotating Assembly
Stock Crank
TRW .030 Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
JB Racing Heads
Stock Rockers
5.7 TT Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-25 PSI

I see slow people

Offline reality

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Re: Turbo Options
« Reply #11 on: June 27 2020, 11:48:49 AM »
Or play with fuel pressure and /or add more meth.

Offline reality

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Re: Turbo Options
« Reply #12 on: June 27 2020, 11:56:52 AM »
Although a 6262 will work I'm more inclined to go with a 66 sbb. If your conv. will stall close to 3000 at o boost it will work well. A 6262 will be looking at taillights  LOL  Yes it's been proven.

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Re: Turbo Options
« Reply #13 on: July 02 2020, 10:27:45 AM »
Ok, I am convinced that compressor surged killed my turbo journal bearing.  Reminds me of when Nasty Wendy was ranting about BOV's way back when to protect against the dreaded flutter.  Now, you can get a ported cover that directly addresses the root cause of all of the failures.  So I checked out the PT6262 CEA Gen 1 at Full Throttle Speed like Steve suggested.  I need to get me one of them!   :cheers:
Champion Irons w/T&D roller rockers, TA-61 turbo, 206/206 Comp Cam,  57 lb/hr Siemens Injectors, 3000 stall PTC, PTE Plenum w/RJC Power Plate, 70 mm Accufab Throttle Body, RJC 325 Megacooler, TurboTweak 5.7/ Alky Control w/M1 methanol, 23 psig on the street, Puddn' Power engine, Borla Exhaust

Chris

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Re: Turbo Options
« Reply #14 on: July 02 2020, 10:51:17 AM »
I still don't believe that compressor surge can be attributed to bearing damage.  Further, a BOV only helps on deceleration and the bad surge potentially occurs during light throttle acceleration.  Some combinations are almost undrivable.

But that is neither here nor there.  I think you will be really happy with the 6262!  :)
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.