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Picking a turbo, suggestions?

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Old Sep 26, 2008 | 09:22 PM
  #1  
chevymec's Avatar
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From: Richlands N.C.
Car: '92 RS
Engine: 350 carb'd
Transmission: T-5
Axle/Gears: 4.10
Picking a turbo, suggestions?

Ive decided to try my hand at going turbo and would like some input on what turbo I should be looking for. Im putting it on my 305 with stock heads,416 castings, and still around the same stock compression. Performer RPM intake and a 600 holley. Im going with "budget " in mind so it doesnt have to be top shelf stuff. I know there are other things I will have to change but I will deal with that when I get to that point.
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Old Sep 26, 2008 | 10:03 PM
  #2  
fast82z's Avatar
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From: NE Ohio
Car: 82 Z28
Engine: TT LS
Transmission: 4L80E
Axle/Gears: S60 3.54's
Re: Picking a turbo, suggestions?

Would help if we have some sort of goal in mind first. Best I can say is that there's a couple of newer mustangs running a single 70 or 72mm turbo around 15psi for a mid/low 10 second 1/4-mile.
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Old Sep 26, 2008 | 10:49 PM
  #3  
chevymec's Avatar
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From: Richlands N.C.
Car: '92 RS
Engine: 350 carb'd
Transmission: T-5
Axle/Gears: 4.10
Re: Picking a turbo, suggestions?

Not planning to make a monster,just want to have fun. Right now the car runs 15.02 on motor and 12.90 on a 150 shot. I would like to get it into the 12's. It makes 214hp/23xtq na and the nitrous puts it to 289hp/34xtq. I would like to keep it close to those numbers and be dependable.
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Old Oct 10, 2008 | 01:05 PM
  #4  
Electron_Blue's Avatar
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From: Michigan
Car: 83 Camaro
Engine: 350
Transmission: th350
Re: Picking a turbo, suggestions?

For a budget turbo the master power T70 #810015 would probably be a good bet.

For reference when reading compressor maps:

10 psi = Pressure ratio of about 1.7
305ci @ 6500 rpm = 50lbs/min of air
@5500 = 42lbs/min
@4500 = 35lbs/min
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Old Oct 10, 2008 | 05:07 PM
  #5  
5literTPIterror's Avatar
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From: upstate new york
Car: 91 camaro rs
Engine: 355, blowthru, 78mm turbo
Transmission: th350, art carr converter
Axle/Gears: stock 7.5, 3.23s, minispool
Re: Picking a turbo, suggestions?

i have a masterpower T70 NEW, with a .68 A/R turbine housing... would probably spool reaaaal quick on a 305ci. looking to sell it.

just bought a turbonetics TC-78, w/ .96A/R.... rated at 1100hp....
should have track numbers by the weekend of the 25th if all goes well.
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Old Oct 12, 2008 | 11:10 PM
  #6  
chevymec's Avatar
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From: Richlands N.C.
Car: '92 RS
Engine: 350 carb'd
Transmission: T-5
Axle/Gears: 4.10
Re: Picking a turbo, suggestions?

Originally Posted by 5literTPIterror
i have a masterpower T70 NEW, with a .68 A/R turbine housing... would probably spool reaaaal quick on a 305ci. looking to sell it.

just bought a turbonetics TC-78, w/ .96A/R.... rated at 1100hp....
should have track numbers by the weekend of the 25th if all goes well.

pm me more info about the turbo if you would.
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Old Oct 22, 2008 | 07:42 PM
  #7  
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From: ct
Car: 92rs
Engine: 350
Transmission: 700r4
Re: Picking a turbo, suggestions?

the masterpower t-70 with .68 turbine would be a great choice. They are only $550 new and will make 700hp.
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Old Nov 1, 2008 | 08:04 PM
  #8  
GMODUDE's Avatar
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From: Cherryville, NC
Car: 92 Camaro RS
Engine: 5.7L 385 Fastburn
Transmission: 700R4
Axle/Gears: 9 Bolt 3.70 Gears
Re: Picking a turbo, suggestions?

im looking for a t70 myself.you said u could get them for 550$?please show me where.I see them being 600-700$.not trying to be a penny pincher but if i can find the same thing cheaper please post a link =]
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Old Nov 3, 2008 | 01:17 PM
  #9  
junkcltr's Avatar
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From: garage
Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Re: Picking a turbo, suggestions?

Originally Posted by chevymec
Ive decided to try my hand at going turbo and would like some input on what turbo I should be looking for. Im putting it on my 305 with stock heads,416 castings, and still around the same stock compression. Performer RPM intake and a 600 holley. Im going with "budget " in mind so it doesnt have to be top shelf stuff. I know there are other things I will have to change but I will deal with that when I get to that point.
What??....no top shelf turbo for that stock 305ci with an intake and carb? I would put a 50-60mm cold side unit on it. Probably go with a T4 .60 - .90 A/R turbine. A used $100 - $200 turbo off of Ebay would do it.
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