Single Turbo RX-7's Questions about all aspects of single turbo setups.

Gt42r....

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Old Aug 9, 2005 | 08:48 AM
  #1  
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Exclamation Gt42r....

Hi all.

Do any one using this turbo ?

when do it spole up one rpm?

I am thinking of geting this turbo whid 96 A/R ore maby 81 but all are saying i shud go for a BIG A/R . But dont understand way i shud go for to big A/R. Don't it going to spole slower up whid a big A/R ?


Thanx

Alex
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Old Aug 9, 2005 | 09:03 AM
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Is there any kind of porting done to the motor?
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Old Aug 9, 2005 | 09:10 AM
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think of a 10 speed bike
when trying to match front and rear wheels in funtion
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Old Aug 9, 2005 | 10:05 AM
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From: look behind you
Search around on here there are numerous posts about that turbo.
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Old Aug 10, 2005 | 03:20 AM
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oki thanx


Alex
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Old Aug 10, 2005 | 03:44 AM
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Here ya go!

https://www.rx7club.com/search.php?searchid=1028627

-Alex
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Old Aug 10, 2005 | 07:09 AM
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I just ordered it from A-spec. Im going with the bigger A/R as Ray Wilson is doing a large street port on my engine. If your going with the T6 frame, then its silly not to have a ported motor to take advantage of it.
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Old Aug 10, 2005 | 04:04 PM
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You would think a half bp or full out bridge would be incredible with this turbo. But you don't need it thanks to how fast it spools. I got to go for a ride in NXFD's car in Texas. He was running the Magnus kit 42R set to only 10psi and that car was SCARY fast. But very fun to ride in.

Zach
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Old Aug 10, 2005 | 04:55 PM
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How was response on the Magnus kit he says he is getting a pretty similar numbers response time to what I am. Just curious.
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Old Aug 10, 2005 | 06:23 PM
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I know that NXFD had a medium sized streetport. And the response was a lot quicker than what I expected. It came on pretty early. I honestly can't say when because I was pushed back into my seat. He showed me a dyno sheet for it that read 390rwhp @ 10psi. I haven't had a chance to get in a car with an A-Spec 42R kit yet so I can't compare them. Hope that info helped a little.

Zach
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Old Aug 11, 2005 | 03:40 AM
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The engine is going to bee exdended streat port. Whid NO steal ring in the exhous houses.

I am only wondering what A/R i shud go for becose i dont want it to come to slow. hoping to get 14psi at 3500 but not sure if i can get that whid this turbo, maby its to big. I cant much abothe turbos the engine i know a litle aboth becose my RL friend is having a ferm here wher i live He have a 12A whid 550bhp in it at 1.9 bar lode. Its crasy but funn His engine is in a RX2. Going to tray it at 200m drag this weekend going to bee funny see what time he can get but he need to brake becose the silly rools in this contrey cant go faster then 7,3 sec ore so. But he is going to tray it on last pull to see how fast he can go.

Alex
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Old Aug 11, 2005 | 03:45 AM
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From: Norway
BTW i am working on a long termine prosjekt so bear whid me.. can take a wile be for a am finich whid this beuld. Dont have to much money to put in to it all in ones maby take up to 2 years ore so.
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