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Old 03-17-2004, 14:08   #1 (permalink)
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Injectors

Well the forced intuction project has been put on the back burner, cos I now have a house to pay off. So I am just going to make the 6 a bit tougher. I am now looking at doing the mpfi conversion, instead of using all the gear on the other engine.
I want to run bigger injectors to go with the stage 2 crow (to go in with the conversion) and the head work I have done. What can the standard computer handle? Cos I don't want to have to put in the heltech and get it dyno tuned and get all the maps set. Inturn spending more $$$

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Old 03-17-2004, 14:29   #2 (permalink)
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Re: Injectors

it seems the standard ecu can handle 170 rwkw, the only downside being a tad lumpy at idle
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Old 03-17-2004, 19:52   #3 (permalink)
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Re: Injectors

Why go up in injector size?
You will find that yours are nowhere near 100% duty cycle.
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Old 03-17-2004, 20:12   #4 (permalink)
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Re: Injectors

I have a set of bosch 775 injector from the forced induction project and I was considering putting them in if the computer could handle the 60cfm flow.
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Old 03-17-2004, 20:15   #5 (permalink)
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Re: Injectors

Does anyone know the siz of the EL XR injectors?

If you want a good injector for forced inductoin, get a set of tr magna injestors. you will get them for around $50 each
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Old 03-17-2004, 20:18   #6 (permalink)
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Re: Injectors

You will probably find that at the moment your car will be running a bit rich.
I changed the fuel pressure regulator in mine yesterday, i put in a stock 4lt one, instead of the XR6 one.
The car is so much more responsive, livlierand feels much better as a whole.
So using bigger injectors will probably just dump in more fuel, and run like crap.
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Old 03-17-2004, 23:35   #7 (permalink)
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Re: Injectors

Especially if not set up properly in the ECU or not tuned. However, properly tuned and programmed and I don't see why you'd have a problem.

Of course, I have to wonder why you'd want them in the first place. You won't need them.
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Old 03-18-2004, 01:04   #8 (permalink)
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Re: Injectors

as everyone else has said - you wont need them.

there are a few guys on here with crow stage 3 cams and head work, and the injectors are nowhere near their capacity yet.

get the head and the cam done, then get a run on the dyno and see what your A/F ratios are - im betting they will be rich, if anything.
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Old 03-18-2004, 05:02   #9 (permalink)
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Re: Injectors

Quote:
Originally Posted by SVO XR6
Does anyone know the siz of the EL XR injectors?

If you want a good injector for forced inductoin, get a set of tr magna injestors. you will get them for around $50 each
std elxr size is 19lb/hr

the tr magna injectors you speak of r the ones that gunns had mentioned above, the 775's
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Old 03-18-2004, 23:59   #10 (permalink)
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Re: Injectors

Ive heard the Magna injectors are very good for forced induction.
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