Single Turbo Setup

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Old Jan 13, 2004 | 12:56 AM
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From: Lillington, NC
Single Turbo Setup

What are you 20b guy's runnin for single turbo setups? What kind of a/r's and compresor trims also?
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Old Jan 13, 2004 | 02:12 AM
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From: Canada
20B rule of thumb... as big as turbo as your wallet can afford! (that's kind of true actually)
1.15 or 1.22 is pretty popular.
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Old Jan 13, 2004 | 03:51 PM
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will a TO4E with q trim wheel, 1.32 exhaust be big enough for a 20B, not exactly sure on front wheel size (57mm I think I was told) with big 4" bell mouth front cover (0.70 a/r).

Will this be good on a street 20B? Not looking for massive power at all, mabe 500 at engine max as engine in un doweled and everyday driver.

I thought it may be a little small but I was told its almost as big as a TA45??
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Old Jan 13, 2004 | 08:16 PM
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From: Charlottesville, Virginia, USA
Originally posted by Bitchn7
will a TO4E with q trim wheel, 1.32 exhaust be big enough for a 20B, not exactly sure on front wheel size (57mm I think I was told) with big 4" bell mouth front cover (0.70 a/r).

Will this be good on a street 20B? Not looking for massive power at all, mabe 500 at engine max as engine in un doweled and everyday driver.

I thought it may be a little small but I was told its almost as big as a TA45??
Pettit makes 550hp with the stock 20B turbos on their Banzai, so you can save a lot of time and money if your goal is to stay in the 500hp range.
http://www.pettitracing.com/

I think the T04E is too small for a 20B. About the smallest turbo that would even be worthwhile is a T64. The T66 and T70 seem to have good performance in road racing. Drag racing would require something larger.

Compressor maps and directions on how to use them at the below link. Note that you need to double the rotary engine's displacement for use in that formula, or you can use the regular rotary engine displacement figure if you remove the ".5" from the equation.
http://www.majesticturbo.com/compression.html
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Old Jan 29, 2004 | 07:25 PM
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I have a T 76 with Q .81 a/r. Going to change a/r to 1.15
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Old Jan 30, 2004 | 07:25 AM
  #6  
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Originally posted by rotaryforlife
I have a T 76 with Q .81 a/r. Going to change a/r to 1.15
do you have any dyno numbers yet??
i got same setup but thinking of running a 1.22 a/r
what boost are you planning to run??
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Old Feb 7, 2004 | 10:33 PM
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From: Moon Twp. Pennsylvania
GT80R

Even though mine is not yet running. I went with the Innovative GT80R. Duall BB.
I have seen this version on quite a few 20B set-ups. The dual ball bearing is a must on any turbo and i chose the R trim exhaust over the Q trim from a suggestion from Innovative themselves. It is supposed to flow more exhaust without suffering any turbo lag.
I built the turbo manifold my self along with a spare to sell if any one wants to put the same turbo on their FD!
$1200 takes one home.

Made of 321 stainless with a custom built burns stainless collector. All fits under stock hood!
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Old Feb 9, 2004 | 12:40 AM
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I'm not interested in buying it, but I'm very interested to see a couple pictures of it, since you made it yourself!
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Old Feb 9, 2004 | 10:35 AM
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how can i post pics on this board
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Old Feb 9, 2004 | 11:02 AM
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this is mine just from the weld shop
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Old Feb 9, 2004 | 11:02 AM
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this is mine just from the weld shop
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