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Turbonetics T76 vs. TC76

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Old 10-26-2008, 06:53 PM
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This is a picture of the race cover GTM vs TC76 posted by Dr Turbo. I'd like to see a pic of a standard T76 vs a TC76 cover.
Attached Thumbnails Turbonetics T76 vs. TC76-tcvsgtmcover.jpg   Turbonetics T76 vs. TC76-tcvsgtmcover2.jpg  
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Old 10-27-2008, 11:49 AM
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Originally Posted by crashly
what about a race cover pic ?
tc 76 ??

ash
Cover
Attached Thumbnails Turbonetics T76 vs. TC76-img_0184.jpg  
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Old 10-28-2008, 12:52 AM
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Originally Posted by DrTurbo
Cover
cool

the tc looks more compact
easier to package
i like the turbonetics units....


realisticly ,
how many people acrtually max out the tc 76 in twins...???

p.s
dr turbo : email sent ...
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Old 01-20-2009, 06:57 AM
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Originally Posted by LASTLS1
The TC76 almost spools up too quick. When I let go of the trans brake it goes right to my set boost rate! I'm going to try to use the boost controller to slow the ramp speed down.
interesting....
have you any data logging with graphs to share?



i ran my bracket engine the other day, twin tc66's on 358 cubes.

off the trans break @ 4000 rpm, from 14 psi to 32 psi .......... 0.42 seconds
data from innovate data logger
4000 rpm to 6020 rpm in 1.2 seconds , under full load, 10.5 inch converter
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Old 07-31-2009, 11:18 PM
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Originally Posted by onfire
This is a picture of the race cover GTM vs TC76 posted by Dr Turbo. I'd like to see a pic of a standard T76 vs a TC76 cover.
Which cover is which?
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Old 08-01-2009, 02:22 PM
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Originally Posted by mike13
Which cover is which?
TC is the siver cover in the middle of the first picture. Black is the race cover. TC is laying on top of the black race cover in the second picture.
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Old 08-01-2009, 02:35 PM
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Originally Posted by onfire
TC is the siver cover in the middle of the first picture. Black is the race cover. TC is laying on top of the black race cover in the second picture.
the TC has a much smaller cover but isn't it close to the T76 in horsepower potential?
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Old 08-01-2009, 07:43 PM
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Originally Posted by mike13
the TC has a much smaller cover but isn't it close to the T76 in horsepower potential?
That's a TC vs a T76 Race GTM cover.

TC76 has a cut down 60 series E compressor cover on it...small for packaging.

T76 (aka HP76 or Gtk1000) comes with a "S" series compressor cover standard which is bigger than a TC76 60 series E cover.

T76 Race Cover is that big black GTM cover...it's a horse...
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Old 08-01-2009, 09:21 PM
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OK let me see if I understand this the TC76 is a smaller packaged turbo, a step down in power potential to the T76, the race cover is a larger compressor than the T76? What kind of power can you make with a TC76 on a 346 LS1?
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Old 08-01-2009, 10:30 PM
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Originally Posted by mike13
OK let me see if I understand this the TC76 is a smaller packaged turbo, a step down in power potential to the T76, the race cover is a larger compressor than the T76? What kind of power can you make with a TC76 on a 346 LS1?
The race cover is a larger cover on a T76 compressor wheel. All three have T76 compressor wheels...just three different covers.

TC76 should be good for +700rwhp on a 346.
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Old 08-01-2009, 11:43 PM
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hey did you receive the hp performance kit ?

i was going to buy one, but i changed my mind after some careful reading
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Old 08-02-2009, 09:04 AM
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let me get this straight....

a TC76 includes an E cover? that's 3" inlet x 2" outlet.... how is that possible when 76mm is pretty much exactly 3"? Did I read that correctly?
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Old 08-02-2009, 09:58 AM
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Originally Posted by icicleboy
let me get this straight....

a TC76 includes an E cover? that's 3" inlet x 2" outlet.... how is that possible when 76mm is pretty much exactly 3"? Did I read that correctly?
60 series cover is a 4" inlet and 2.50" outlut on the TC76.
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Old 08-02-2009, 10:04 AM
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Technically, not a "true E" cover, but a "60 series" cover.....
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Old 08-02-2009, 05:49 PM
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Originally Posted by onfire
TC76 should be good for +700rwhp on a 346.
So what is a TC78 good for?
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Old 08-03-2009, 10:07 AM
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The TC uses a 4" inlet cover not the 3" inlet E-cover. Also the GTM cover is the same used on the Y2K, so it will FLOW baby!
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Old 08-03-2009, 11:19 AM
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Originally Posted by DrTurbo
The TC uses a 4" inlet cover not the 3" inlet E-cover. Also the GTM cover is the same used on the Y2K, so it will FLOW baby!
Will it affect performance using a 4" to 3" silicone reducer on the turbo inlet?
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Old 08-03-2009, 11:28 AM
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Originally Posted by mike13
Will it affect performance using a 4" to 3" silicone reducer on the turbo inlet?
No, as long as the filter on the end is large enough.
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Old 08-03-2009, 12:13 PM
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Originally Posted by DrTurbo
The TC uses a 4" inlet cover not the 3" inlet E-cover. Also the GTM cover is the same used on the Y2K, so it will FLOW baby!
Does that mean All TC units are this size?
I was under the impression that the TC67 came in an E cover, or 3" X 2".
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Old 08-03-2009, 03:28 PM
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Originally Posted by BlwnLs1GTO
Does that mean All TC units are this size?
I was under the impression that the TC67 came in an E cover, or 3" X 2".
We can build them with the 3" cover if you want as well.
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