NEED 4k RPM GSK - Diesel Truck Forum -
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post #1 of 5 (permalink) Old 04-06-2006, 08:40 PM Thread Starter
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guys i need a 4krpm gsk kit soon, piers told me 4 weeks what the hell? i need one in a lil over 1 week, help me out guys
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post #2 of 5 (permalink) Old 04-07-2006, 03:09 AM
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Didnt know they make a 4k, I thought the highest spring the 1st gens got was 3400.


my daily driver:67 F100, 300 4V, cammed, 4 spd.
or, 08 Subaloser Forester, 2" lift.
work rigs: 94 IH 4900, DT466(originally 230hp), #0 fuel plate, tighter gov springs, 22* timing
or, 06 IH 7400, DT466E, 300hp

My Low Buck fuel rate site:
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post #3 of 5 (permalink) Old 04-07-2006, 03:14 AM Thread Starter
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bosch makes a 4k just not very popular.
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post #4 of 5 (permalink) Old 04-07-2006, 03:29 AM
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IIRC, the bosh part number is 354 or 374. There is a guy over at DTR and diesel-central that has used this spring bgilbert is his handle IIRC.

some diesel stuff
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post #5 of 5 (permalink) Old 04-07-2006, 04:15 AM
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Info from a previous post, There should be a lock collar on the backside of the fuel screw to limit the amount that you can turn it in. I usually just remove the collar, replace the fuel stops with M6 bolts, and adjust the fuel screw to compensate for the idle. The stock 388 spring is governed around 2300RPM, the 366 spring will give you 3200RPM, there is also a 386 spring that will give around 4000RPM. Here is a picture of the foot you can remove, this is a permanent modification and you will need to modify your fuel shutoff solenoid. Here is a picture of the AFC lever Here is some more info that might come in handy
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