c.h.i.e.f 's 110 Isuzu county

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Originally Posted by c.h.i.e.f

will be good to see some comparisons :D
i looked at the EFR vnt's but the general consensus was if i wanted something reliable dont go vnt's and that was from the distributors them selves but having said that i will probably try and find one in the future to help the larger one dispite what people have said...

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Yeah the efr's are fixed.. I didnt want to bother with controllers, And the efr would spool up faster (so im told)

Are you intercooled Cheif?

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Originally Posted by Dougal

Are you intercooled Cheif?

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Yes air to air front mount but im considering other options all the time...

One other question c.h.i.e.f

When you had your injection pump on a test bench for adjustment, how many cc's per 1000 strokes did you achieve/set it to?

This figure will determine how much air you needed and a reasonable ballpark for what power you might obtain.

If you had an 89 or later 4BD1T (stronger pistons with better oil cooling) instead of what you are playing with, I would suggest adjusting the rpm to 4000 or more for 25+% power increase (power ~ torque x revs).

I'll try and find the figures ASAP ... I wish I had a factory turbo motor so I could open it up a bit more but trying to find one or even a whole truck is near impossible at least everywhere I have tryed :( once this motor has a problem depending on what the problem is I will probably be putting a cummins 6bt motor in it if I can find one with a inline IP and not the rotary ..

Have not found the paper I printed off with the fuel/delivery settings (still looking though) I'm trying to convince my mate to spare some time and give it a test again :angel: he couldn't remember now what he set it at either but he said he thinks it was 25% extra fuel at standard fuel screw position but I said I need the cc's per 1000 shots reading so still waiting on some usefull info guys ...

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Originally Posted by c.h.i.e.f

Have not found the paper I printed off with the fuel/delivery settings (still looking though) I'm trying to convince my mate to spare some time and give it a test again :angel: he couldn't remember now what he set it at either but he said he thinks it was 25% extra fuel at standard fuel screw position but I said I need the cc's per 1000 shots reading so still waiting on some usefull info guys ...

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From my info for the 86 to 88 4BD1 the stock calibration for fuel delivery ranges from 67 to 74 cc/1000 strokes at full load - this range takes in allowable variation as well as an rpm range.

Plus 25% would give 84 to 92 cc/1000 str.

For the same years 4BD1T the range is 70 to 78 cc/1000 str - this is approx 5% greater than for the 4BD1.

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Originally Posted by Bush65

From my info for the 86 to 88 4BD1 the stock calibration for fuel delivery ranges from 67 to 74 cc/1000 strokes at full load - this range takes in allowable variation as well as an rpm range.

Plus 25% would give 84 to 92 cc/1000 str.

For the same years 4BD1T the range is 70 to 78 cc/1000 str - this is approx 5% greater than for the 4BD1.

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Thanks John
No matter how hard I try to remember the factory setting mine was at I can't recall the exact number so I wish not to comment at this stage... You maths are the same as I figured also...I'll still try and get real life figures though.

Just received my mxa-6r ,truck sump and oil filter arrangement :D
https://www.aulro.com/afvb/images/im...013/04/685.jpg

Excellent. What year and model truck was that out of? I see 4BE1 painted on the bell, but I haven't seen a 4BE1 new enough to have a 6 speed fitted.