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

which size secondaries should i go with?

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Old 11-22-05, 02:44 AM
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which size secondaries should i go with?

for 350whp with a hybrid....

id like to keep the 550cc primaries... what should i go with for secondaries?

i have a lead on a pair of 1600's, are they toooooo big for my application?
Old 11-22-05, 03:15 AM
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4 x 720 would be easy to tune

or just grab some 850's outta a 3rd gen
Old 11-22-05, 03:58 AM
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Originally Posted by bcty
4 x 720 would be easy to tune
IMO, they can't support 350 at the wheels unless you start to bump up the fuel pressure.

or just grab some 850's outta a 3rd gen
Too bad they don't "drop into" a stock FC fuel rail.


-Ted
Old 11-22-05, 10:23 AM
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550/1200 will work fine for 350RWHP and if you do some simple rewiring of the fuel pump it will support even closer to 390RWHP.
Old 11-22-05, 02:17 PM
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.... double post
Old 11-22-05, 02:17 PM
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if your goinf to use the microtech you have in your sig, then 1600;s will work .

1200's would be ideal. But they most likely will cost more than the 1600's
Old 11-26-05, 05:24 PM
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You can try the 1300 secondaries, that should be fine with a upgraded fuel pump
Old 11-26-05, 05:46 PM
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Originally Posted by BLitzed33
You can try the 1300 secondaries, that should be fine with a upgraded fuel pump

yep, i have a walbro 255
Old 11-26-05, 05:53 PM
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Originally Posted by turbo-polak
yep, i have a walbro 255
Cool, let us know how it goes
Old 11-26-05, 06:01 PM
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Originally Posted by BLitzed33
Cool, let us know how it goes
oh for sure.
Old 12-03-05, 07:43 PM
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Originally Posted by BLitzed33
You can try the 1300 secondaries, that should be fine with a upgraded fuel pump

1300's from where?

ive looked at some online injector stores... 1600's seem to go for around $100 a piece...

i want the powerband to be smooth (drift car) i need it to be smooth, and not a peak hp figure...(maybe i shouldnt be using a rotary )

4x850cc's or something along those lines will work fine, no?

what will the stock injectors at like 90% duty cycle support?

i wont jump to 350whp right away.

probably around 270-280. i'll be running 7-10psi with the my hybrid t4.

cheers,Dan.
Old 12-03-05, 08:55 PM
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Originally Posted by turbo-polak
i want the powerband to be smooth (drift car) i need it to be smooth, and not a peak hp figure...(maybe i shouldnt be using a rotary )
Powerband has nothing to do with fuel injector size as long as the EMS can handle it.
Oh wait, you're running a Microtech!


-Ted
Old 12-03-05, 11:17 PM
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Originally Posted by RETed
Powerband has nothing to do with fuel injector size as long as the EMS can handle it.
Oh wait, you're running a Microtech!


-Ted

well i guess what i was trying to say was.. i dont want a *blirp* as usually described by 1600cc secondary owners
Old 12-04-05, 01:07 AM
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1600's are not bad once you figure out how to tune arround the boost transition.
Old 01-03-06, 12:45 AM
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how would i get FD 850cc injectors to work with my t2?
Old 01-03-06, 02:54 AM
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Originally Posted by turbo-polak
how would i get FD 850cc injectors to work with my t2?
You need a custom fuel rail for it.
FD's run all side-feed fuel injectors.
FC's run all top-feed fuel injectors.
They are basically not swappable.


-Ted
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