Cat 3116 / 3208 Needs More Hp? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 14 (permalink) Old 07-07-2006, 11:38 AM Thread Starter
 
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Cat 3116 / 3208 Needs More Hp?

I have a mechanical 3116 with 170hp, and would like to get more out of it. How do I turn it up? My second question: I have a 3208T and I have heard of the Marine Injectors for it, what will this do for it and will it have to high of EGT's? Thanks
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post #2 of 14 (permalink) Old 07-07-2006, 06:11 PM
 
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To gain access to the fuel screw on the 3116, you must remove the valve cover. If the seal tag/plate is still present it will need to be removed. You will need to remove the tag by removing the rocker shaft stand bolt. The screw and lock nut are on the rack bar. Turn the screw counter-clockwise to increase rack travel.

As far as the 3208, yes marine inj. will increase fuel flow, but so will tweaking the pump. The egt's will go up anytime more fuel is introduced into the cylinder without more air to go along with it.
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post #3 of 14 (permalink) Old 07-09-2006, 01:42 PM
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That's right. EGT's WILL increase. A CAT diesel is expensive to replace should you melt the pistons. Make sure you get a pyro gauge.

I mounted this one directly in my dash. Has a boost gauge in it, too!

http://www.gohypermax.com/Catalog.as...3-985ae61cc873
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post #4 of 14 (permalink) Old 07-10-2006, 01:58 AM
 
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Marine injectors are available for your 3116 as well.
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post #5 of 14 (permalink) Old 02-03-2009, 01:55 AM
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Originally Posted by dieseltc View Post
Marine injectors are available for your 3116 as well.
Are they available for the 3116e (electronic) as well? How much HP/Torque can you expect?
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post #6 of 14 (permalink) Old 02-03-2009, 02:13 AM
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All ya'll WILL get in trouble throwing around marine nozzles without appropriate mods to the rest of it. Sorry...T
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post #7 of 14 (permalink) Old 02-03-2009, 03:00 AM
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All ya'll WILL get in trouble throwing around marine nozzles without appropriate mods to the rest of it. Sorry...T
Don't hold back, share the knowledge...
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post #8 of 14 (permalink) Old 02-11-2009, 02:49 AM
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Don't hold back, share the knowledge...
Sorry I didnt catch this. On baby motors (i.e. 3208, 3208T, 3116 etc), marine nozzles without more fuel will unload faster, obviously, but in doing so timing follows exponentially. More timing is not so much a bad thing, but look what youre working with in the first place. Backing off the timing if you both crank it to max and put bigger squirters in will be in order. Shell be way hot if not. So, the bigger the hole, the faster the dump, the more advance to timing, the more heat, on and on. Rule of thumb is bigger injectors when you run out of fuel capabilities at the pump. So, crank the hell out of it. If its not enough, then injectors (or nozzles), but keep it cool.

Bigger injectors on big bores lead to many questions. First off, is a better cam a better choice at 1/3 the cost? Second, is it a late enough model that compression is so hi you get fire chase just from injectors? Will you get the same delivery by cranking T-pump pressure for 10% the cost? 957s to 958s is the same as 65psi transfer pump pressure bumped to 120psi, however its done (shimmed plunger, secondary feed, etc...)

The main thing to remember is the bigger the delivery, the more the timing advances mechanically, even on an electronic motor. This is good to a certain point. If compression is way hi and you have twins, a cam is way better, then play away with injectors, as long as YOU HAVE ALL GAUGES. I could go on but yall get the jist of itT
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post #9 of 14 (permalink) Old 02-14-2009, 01:53 AM
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One thing I noticed about my 3208T right away was no intercooler. Has anybody ever tried putting one in and would it help IATs ? Like you said high EGTS no good which leads to high IATs right ?

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post #10 of 14 (permalink) Old 02-21-2009, 01:45 AM
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Quote:
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One thing I noticed about my 3208T right away was no intercooler. Has anybody ever tried putting one in and would it help IATs ? Like you said high EGTS no good which leads to high IATs right ?
Yep for $15,000 (only one I've seen do to obvious build method of integrated intake) on an alcohol pullin tractor
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