hey guys gettin ready to do the 60lbs valve springs and 4gski know that it doesnt acually add power ,but on the dyno do u think my numbers mite increaseas it will alow more fuel at higher rpms.just wanderin got a dyno day coming up in a coulpe of weeks tryin to bust 500any info not oppions apreaciated thanks gents.

 

depends on the dyno

 

ok so differnt dynos can produce different numbers

 

The 4k will do alot for dyno numbers, Allowing the truck to access more power through out the RPM range. You may have to adjust the gov. arm after you install your GSK kit!
It's got alot to do with tuning. Mitchum Evans is pretty close to you IIRC (cedar city diesel).
Give us a detailed explanation of the truck and it's current tuning and I'm sure you'll get plenty of opinions!

Let us know if we can help in anyway!

 

Of course.

You cant just buy a bunch of parts, add up the numbers they are supposed to produce and expect to see that on a dyno. That just doesnt happen in the real world. Dynos are all different and there are many, many variables that affect the final numbers.

 

yaah meacham is kinda my mentor he dffintly taught me alot as far as the truck,97
5-speed 90hp injectors,191 dv 0 plate 16*timing southbend clutch,phat shaft 62/14,and on friday 60lb valve springs and 4gsk any ideas what i can do in two weeks to hit 500

 

so when putting the 4kgsk in do you not have to change the intake valve springs or do you?just wondering cuz everyone always says they just do the exhaust valve springs and never the intake

 

They'll both float , Intake and exhaust. You need both if you ask me. We always recomend that customers install both for peace of mind!

 

thats what i figured. but why then dont everyone do both??? are they just trying to cut corners to save money or is it just not as important??

 

Personally, i feel both sets are equally important above 3600 RPM.
Maybe because pac-brake sells a kit with just 6 springs they opt to go that way.
Now i know that for instance with an exhaust brake the exhaust springs are the one that need to be changed and intake isnt as important in such situation.

For the extra few dollars you would think it wouldnt be somthing to cut corners on?