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  #1  
Old 12-03-2011, 09:06 PM
starquest2875 starquest2875 is offline
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Default Translator For 2g Eclipse And 3s 750 injectors

Good day,
I have a 97 3000gt vr-4,,
Im useing the MAF TRANSLATOR for my 3S blow thru style, im currently useing 680 injectors, its working fine for me but im up gradeing so im moving up to 750/780 injectors,, will my ecu work well enough with the translator at idle and wot ?
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Old 12-03-2011, 09:23 PM
TurboBob TurboBob is offline
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what brand of injectors? (old and new)?

thats not a huge change, why not just raise the fuel pressure some.

What are you changing on the car, and what are your injector dutycycles at WOT?

How much boost are you running?

Bob
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Old 12-03-2011, 09:24 PM
TurboBob TurboBob is offline
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but the answer is "probably".



Bob
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Old 12-03-2011, 10:27 PM
starquest2875 starquest2875 is offline
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My 680 are precision, if i buy new ones they will be RC
Im changing turbos, I dont know my dutycycles @ wot
im planning on running 28/30 lbs

I running twin pumps, 680 injectors and adjustable pressure regulator,, so your sayin instead of buying bigger injectors, just turn up the pressure ?

Last edited by starquest2875 : 12-03-2011 at 10:30 PM.
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Old 12-03-2011, 11:30 PM
TurboBob TurboBob is offline
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Quote:
Originally Posted by starquest2875
My 680 are precision, if i buy new ones they will be RC
Im changing turbos, I dont know my dutycycles @ wot
im planning on running 28/30 lbs

I running twin pumps, 680 injectors and adjustable pressure regulator,, so your sayin instead of buying bigger injectors, just turn up the pressure ?

Well, the RC injectors I have seen (not sure about the 750s you are looking at) are "disk" type and have a small deadtime, which is way different than the 680 Precisions which are "Rochester" injectors. So I don't recommend going to a disk type injector when using piggyback controllers, especially when trying to run double the stock injector size. You will wind up with an overly rich idle that you can't tune out.

The injector "flow rate" changes with the square root of the applied pressure. If you want to increase the injector flow from 680 to 750, you need to increase your fuel pressure 20%. But, I would leave the 680's in there and see if the 680's are enough. Then increase the fuel pressure if you are close.

Bob
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Old 12-04-2011, 01:18 AM
starquest2875 starquest2875 is offline
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thats seems like the logic thing to do instead of just going bigger,, i can always up the pressure,, thanks again,,
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