Max that the stock feul rail will hold?
09-20-02, 01:19 PM
#1
Max that the stock feul rail will hold?
I want to know what the maximum the stock feul rails in a S5 TII will hold. Yes they will be controlled not sure what but i want to put 4 820cc injectors is this duable? witht he stock rails? i need lots more feul for my T04 and well i am trying to make a shopping list for what i will need when i put my car back together! Any tips hints or advice?
09-20-02, 03:10 PM
#3
RX-7 Bad Ass
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Many Haltech guys use 550cc primaries and 1600cc secondaries.
I don't know at what point the stock fuel rails become a problem. That's what fuel pressure gauges are for
. Probably somewhere north of 400hp would be my guess.
Dale
I don't know at what point the stock fuel rails become a problem. That's what fuel pressure gauges are for
. Probably somewhere north of 400hp would be my guess.Dale
09-20-02, 11:56 PM
#4
well i Need at least 800cc in both primaries and secondaries! and i do not have a haltech as i cannot afford it! and i do not have a stock turbo to put back onto my car! so I Am looking at the Greddy e-manage and 820cc is the biggest i can put in! so i figured that i would ask if anybody knew what the max that the stock feul rails would handle. So if anybody knows let me know!
09-21-02, 10:05 PM
#7
Originally posted by RETed
500hp is about the limit.  I would worry about the 5/16" hard metal fuel lines more than the fuel rails itself...
500hp is about the limit.  I would worry about the 5/16" hard metal fuel lines more than the fuel rails itself...
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09-23-02, 09:24 PM
#8
Lives on the Forum
The car uses 5/16" hard metal lines from the gas tank to the front before the fuel filter.  I recommend changing them to min -6 AN SS lines if you're shooting over 500hp from the engine.
For your application, the stock stuff sounds fine.
-Ted
For your application, the stock stuff sounds fine.
-Ted
09-23-02, 11:32 PM
#9
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Originally posted by jreynish
oh sorry and i will be running somewhere in the region of 400-450hp by the time i am done!
oh sorry and i will be running somewhere in the region of 400-450hp by the time i am done!
but as for injectors.. I don't know of anything that size. lots use 720's in the stock rails. the 1600's need to have the rail modified to fit them. I don't know of anything inbetween that will fit in the stock rails..
09-23-02, 11:57 PM
#10
What R U thinking self?
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I have 1000cc Secondaries in my stock secondary rails. I had a set of stock 550cc injectors inlarged so i would not have to deal with the impeadance factor, my injectors are high imp. Hard to find them in a large format. I use a S-AFC ... so with +50 being max, i wanted some tuning room so i went 1000, instead of 1100.
09-24-02, 12:11 AM
#11
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Originally posted by Rpeck
I have 1000cc Secondaries in my stock secondary rails. I had a set of stock 550cc injectors inlarged so i would not have to deal with the impeadance factor, my injectors are high imp. Hard to find them in a large format. I use a S-AFC ... so with +50 being max, i wanted some tuning room so i went 1000, instead of 1100.
I have 1000cc Secondaries in my stock secondary rails. I had a set of stock 550cc injectors inlarged so i would not have to deal with the impeadance factor, my injectors are high imp. Hard to find them in a large format. I use a S-AFC ... so with +50 being max, i wanted some tuning room so i went 1000, instead of 1100.
09-24-02, 12:15 AM
#12
What R U thinking self?
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Yup it was RC, they said they can usally go %50 over. that would put them max at 1100, but like I said I wanted some tuneabilty so i stopped at 1000. Or else I would have to set the S-AFC at max, and have nothing to work with.
NOT cheap though. $180 per injector!
but nothing considering the gains.. and all the other money i spend on this thing ... you know what I mean
NOT cheap though. $180 per injector!
but nothing considering the gains.. and all the other money i spend on this thing ... you know what I mean
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