quick injector question

quick injector question

fj 720
fj 720

December 3rd, 2005, 6:18 am #1

i bought some rx7 injectors of ebay, i thought they were the 550's but turns out thier the 460cc's after i had them flowed. i plan on running about 18lbs of boost with a gt28rs. i was wondering what is the max hp i can get with these injectors. and also, would it be okay to run these up to 100% duty cycle for short periods of time? thanks for your help guys.
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Frenchweapon
Frenchweapon

December 3rd, 2005, 9:47 am #2

I am sorry to hear you got ripped. But at least theyre 460ccs. The GT28RS is a sick turbo. You should make 280rwhp as ANT on this site has made. You will be pushing the injectors to make this power I assume bt the 80-90 percent. I dont know exactly, let me calculate it and get back to you.

I reckon you should be fine running the 460cc with 50psi base pressure so your limit duty cycle.

Ill get back to you regarding flow and duty cycle.

BTW, please measure the resistance of your fuel injectord and post up the small numbers you find on the side. We can then compare to the info below to see what injector you really have.

84-85 | 13B NT | low | square | center | 680cc | orange | 195500-0900

86-87 | 13B NT | low | square | center | 460cc | red | 195500-1350

86-87 | 13B T | low | square | center | 550cc | tan | 195500-1370

88 | 13B NT | high | square | offset | 460cc | purple | 195500-1350

88 | 13b T | high | square | offset | 550cc | purple | 195500-1370

89-91 | 13B NT | high | oval | center | 460cc | red | 195500-2010

89-91 | 13B T | high | oval | center | 550cc | purple | 195500-2020

Ciao


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Anonymous
Anonymous

December 3rd, 2005, 8:39 pm #3

i bought some rx7 injectors of ebay, i thought they were the 550's but turns out thier the 460cc's after i had them flowed. i plan on running about 18lbs of boost with a gt28rs. i was wondering what is the max hp i can get with these injectors. and also, would it be okay to run these up to 100% duty cycle for short periods of time? thanks for your help guys.
86-87 | 13B NT | low | square | center | 460cc | red | 195500-1350

those are the injectors, i guess NT means non turbo, which means the guy lied again saying they were off a turbo rx7. thanks for your help by the way. peace!
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Frenchweapon
Frenchweapon

December 4th, 2005, 4:53 pm #4

i bought some rx7 injectors of ebay, i thought they were the 550's but turns out thier the 460cc's after i had them flowed. i plan on running about 18lbs of boost with a gt28rs. i was wondering what is the max hp i can get with these injectors. and also, would it be okay to run these up to 100% duty cycle for short periods of time? thanks for your help guys.
Youll make about 300rwhp max on those injectors. Should be fine for you GT28RS if you whack the base pressure up bt 50-60psi.

Let us know how you go.

seb
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graham
graham

February 23rd, 2007, 3:11 am #5

i bought some rx7 injectors of ebay, i thought they were the 550's but turns out thier the 460cc's after i had them flowed. i plan on running about 18lbs of boost with a gt28rs. i was wondering what is the max hp i can get with these injectors. and also, would it be okay to run these up to 100% duty cycle for short periods of time? thanks for your help guys.
Hi i am in the process of purchasing some injectors that the guy have said are out of a series 4 Turbo RX7

he says they are denso 550cc injectors and the part number is 195500-1370

he also sent me close up pics and they are clearly red

they also have the square pin like the fj20 injectors

going off this chart none of the injectors match up.. is there a chance the info here could be a little mixed up or is he lying..

also how do i post the pictures of them



84-85 | 13B NT | low | square | center | 680cc | orange | 195500-0900

86-87 | 13B NT | low | square | center | 460cc | red | 195500-1350

86-87 | 13B T | low | square | center | 550cc | tan | 195500-1370

88 | 13B NT | high | square | offset | 460cc | purple | 195500-1350

88 | 13b T | high | square | offset | 550cc | purple | 195500-1370

89-91 | 13B NT | high | oval | center | 460cc | red | 195500-2010

89-91 | 13B T | high | oval | center | 550cc | purple | 195500-2020


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