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-   -   3000gsk vs.4000gsk (https://www.dieselbombers.com/5-9l-12v-performance/25258-3000gsk-vs-4000gsk.html)

dan33klein 04-15-2009 05:26 PM

kk
about how much does it cost to do it?
what will really be a benefit?

94 12valve 04-15-2009 09:57 PM


Originally Posted by dan33klein (Post 324213)
kk
about how much does it cost to do it?
what will really be a benefit?

your truck will run and perform better don't know how much a shop will charge to do it but the tools are arround 200 bucks

whyzee125 04-19-2009 04:12 PM

ok, well im new here, and my current ride is a yz125 haha but im getting my dads 96 12v in about a year. so right now it will go to like 2600 in nuetral, and in drive like 2250 or so. so if i got the 3k gsk its only gonna go to like 2600 in drive right? but if i got the 4k its not going to go past 3200 anyway without changing the shift points on the tranny? is this right, it seems from what ive heard that its right.

94cummins12v 04-19-2009 06:45 PM


Originally Posted by whyzee125 (Post 326009)
ok, well im new here, and my current ride is a yz125 haha but im getting my dads 96 12v in about a year. so right now it will go to like 2600 in nuetral, and in drive like 2250 or so. so if i got the 3k gsk its only gonna go to like 2600 in drive right? but if i got the 4k its not going to go past 3200 anyway without changing the shift points on the tranny? is this right, it seems from what ive heard that its right.

yes and no, the truck will hit 4k without any tranny work, the reason not to exceed 3200rpm is because you will float vavles without 60lb valve springs. with a 3k kit you should be able to hit2800rpm before defueling starts.

392hemix 04-21-2009 06:03 PM

i have noticed installing springs is way more efective in 5speed 215 pumps over the auto 180 pump. i just put a 3gsk in my buddies white 97 5speed and the thing bakes tires into 4th gear and boots on the high way. i was jelous of his truck after the install.

94cummins12v 04-22-2009 01:28 AM

i didnt notice any difference at all in my 175 pump and the current 215 pump, im running the same dvs, plate, afce and springs and really see no difference other than a tad more fuel

xzaq103 04-22-2009 08:38 AM


Originally Posted by 392hemix (Post 327534)
i have noticed installing springs is way more efective in 5speed 215 pumps over the auto 180 pump. i just put a 3gsk in my buddies white 97 5speed and the thing bakes tires into 4th gear and boots on the high way. i was jelous of his truck after the install.

That would be from the 215 pump....

bowtech 04-22-2009 12:09 PM

wat exactly are these kits for? could i put one on my 94 auto cummins or is it hard on the tranni? just want the run down on it

stkdram55 04-22-2009 12:27 PM

its the governor springs, it lets the truck rev higher...3000 is good 4000 is better in the long run for most people...but once you get above 3200 RPMS you will float your valves...and yes you can put them in your truck...it should really hurt your tranny i just lets the truck fuel longer in the top end:U:

bowtech 04-23-2009 08:26 PM

how is a kit like this good for it if it red lines at 3000?


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