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

My project has begun :)

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Old 02-27-05, 02:23 PM
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Talking My project has begun :)

I finally installed freshly rebuilt motor into my single turbo FD
This is only the beginning

pics of engine(naked) in my FD

http://img.photobucket.com/albums/v4...2-27-05007.jpg
http://img.photobucket.com/albums/v4...2-27-05005.jpg
http://img.photobucket.com/albums/v4...2-27-05014.jpg
http://img.photobucket.com/albums/v4...2-27-05016.jpg
Old 02-27-05, 02:26 PM
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Here are some pics of ported LIM

http://img.photobucket.com/albums/v4...2-27-05009.jpg
http://img.photobucket.com/albums/v4...2-27-05008.jpg
http://img.photobucket.com/albums/v4...2-27-05012.jpg
Old 02-27-05, 02:27 PM
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Okay.... and your plans include????
Old 02-27-05, 02:29 PM
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UIM

http://img.photobucket.com/albums/v4...2-27-05010.jpg
http://img.photobucket.com/albums/v4...2-27-05010.jpg
http://img.photobucket.com/albums/v4...2-27-05013.jpg

I am sorry for not posting pics of internals (porting) of engine but I will as soon I can find them!!!
Old 02-27-05, 02:37 PM
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My plans include 60-1 turbo which I already have
.7 a/r compressor
.96 a/r turbine non divided with a p trim
future mods:
-custom manifold with tial 46mm WG
-kgparts sec fuel rail with 1600 cc injectors
-EMS Apex power FC or Haltech E6K not sure yet
My goal is to get 400 RWHP ???
Old 02-27-05, 02:43 PM
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Just pic up the HKS manifold off of Aithun here in the for sale section. It is cheap and will work well for you. Then use the HKS 50mm wastegate. So for around a little less than a grand you got what you want.

Edan
Old 02-27-05, 02:52 PM
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Edan
Are you talking about the HKS cast manifold??
I just want to make sure what works best for me
For less than a grand that is really not too bad.
Thanks
Old 02-27-05, 03:00 PM
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No, it is the HKS turbular....
Old 02-27-05, 03:00 PM
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link coming...

edit:

https://www.rx7club.com/showthread.p...t=hks+manifold
Old 02-27-05, 03:01 PM
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p.s. this guys is a good guy, so you'll get what you pay for.

Edan
Old 02-27-05, 03:02 PM
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same manifold as in this thread

https://www.rx7club.com/single-turbo-rx-7s-23/hks-manifold-3rd-gen-398862/
Old 02-27-05, 03:15 PM
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Thanks Edan
I will contact him
the manifold is divided, will that affect my turbo because it is non divided?


http://mazdadragracing.com/turbopage.html
I was looking into this manifold but dont know the quality
I contacted them and said manifolds are now SS.
For $500 that is not bad at all.
Which will flow better/
Old 02-27-05, 03:24 PM
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shouldn't... you may want to rethink going with an undivided turbo. But get the manifold, so at least you can change out the turbine housing and get a divided housing...

Go with what is proven, spend the couple hundred more, unless you got money to blow.

Thats what I have learned.

Edan
Old 02-27-05, 11:31 PM
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Why should I change to divided??
I would think divided turbine would be more restrictive depending on the manifold.
I can always change my turbine @ no charge from my friend but I still dont see whay
can anyone please explain??
Old 02-27-05, 11:47 PM
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Originally Posted by 13BNUT
Why should I change to divided??
I would think divided turbine would be more restrictive depending on the manifold.
I can always change my turbine @ no charge from my friend but I still dont see whay
can anyone please explain??

The divided housing will give you a 500~600 RPm faster spool, without affecting your top end that much (maybe a percentage point or two?)
Old 02-27-05, 11:57 PM
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Divided is supposed to give you boost sooner (lower RPM). I am not sure what the downsides are, if any. It should be okay to run a non-divided turbo on a divided manifold, but it makes sense to take advantage of it by running a divided turbo.

-Max
Old 02-28-05, 01:16 AM
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Originally Posted by maxcooper
Divided is supposed to give you boost sooner (lower RPM). I am not sure what the downsides are, if any. It should be okay to run a non-divided turbo on a divided manifold, but it makes sense to take advantage of it by running a divided turbo.

-Max
Max

In other words nondivided will give me more turbo lag.
I can always change my turbine to divided I got the turbo through a friend here in Long Beach and will replace my turbine @ no extra charge.

will a 1.00 a/r do? and if so do they come with a v-band like my .96 turbine?
Old 02-28-05, 01:59 AM
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Originally Posted by 13BNUT
Max
will a 1.00 a/r do? and if so do they come with a v-band like my .96 turbine?
yes, & yes. Should work well for you... 15psi around 4000rpm. for 400rwhp on pump gas (<15psi of boost) you'll need a decent street port. With stock porting you'll be closer to 340 or 350rwhp at 15psi.
Old 02-28-05, 02:05 AM
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thats inciteful. hahahaha, i have a 60-1 w/1.00 a/r hotside on an xs cast manifold. . . untuned. been wondering what ill have to do in order to hit 400rwhp. hopefully, i will. . . i have a streetported motor. . . dont know how aggressive though. . . . geh

paul
Old 04-14-05, 12:31 AM
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Finally installed P/S bypass kit!!


It has been a while since I worked on my car
Well I managed to eliminate my P/S, I actually did my own I bought all the parts @ baker precision and it only cost me $15.43
Just thought I would share with you guys
Pics
http://img.photobucket.com/albums/v4...Sbypass001.jpg
http://img.photobucket.com/albums/v4...Sbypass004.jpg
http://img.photobucket.com/albums/v4...Sbypass005.jpg

Finished product
http://img.photobucket.com/albums/v4...Sbypass006.jpg
http://img.photobucket.com/albums/v4...Sbypass007.jpg
Old 04-14-05, 12:37 AM
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Finally installed P/S bypass kit!!


It has been a while since I worked on my car
Well I managed to eliminate my P/S, I actually did my own I bought all the parts @ baker precision and it only cost me $15.43
Just thought I would share with you guys
Pics
http://img.photobucket.com/albums/v4...Sbypass001.jpg
http://img.photobucket.com/albums/v4...Sbypass004.jpg
http://img.photobucket.com/albums/v4...Sbypass005.jpg

Finished product
http://img.photobucket.com/albums/v4...Sbypass006.jpg
http://img.photobucket.com/albums/v4...Sbypass007.jpg
Old 04-14-05, 01:45 AM
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Originally Posted by kenn_chan
The divided housing will give you a 500~600 RPm faster spool, without affecting your top end that much (maybe a percentage point or two?)
Not a chance on the turbos, and manifolds being discussed. We have seen hundreds of dynos on this forum, and as far as I can remember, nobody has done a back to back test. That said It is in theory a better way to go, but maybe by ~200 rpm from similar set-ups I have seen, more than that you would have to show us if it really means alot to you .

I've seen back to back runs on Supras(divided manifold to undivided turbo, vs divided manifold to divided turbo), and there was not more than 150rpm difference in spool. the top end was about 10% higher on the divided tubular vs a cast manifold though. The initial spool was actually slower with the tubular, but about half way into the curve the tubular began to gain an advantage. Sort of a moot point since you cannot hook the power up with anything less than drag radials anyway. Carl
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