chris@hps

You can get away with lower spring pressures on lower boost settings. The seat pressure really comes into play when turning up the boost. Alot of people tend to overlook this.

Chris

89LS1FOXER

iTrader: (47)

So so you think the tsp duals will be ok or is there other springs you would recommend?

chris@hps

On the box that the springs came in, there should be a sticker on it that has the specs of the springs. Should have lift ,seat pressure ,etc. There is alot of spring options out there. The stuff we do is based on individual build basis as to what springs we use. I recommend installing 1 valve spring and then have the machine shop do a seat pressure test while the valve spring is installed @ its proper install height. This is the only way to truly tell what seat pressure you have.


Chris

89LS1FOXER

iTrader: (47)

Well the only tsp spring that has a 160lb seat pressure is their extreme springs and i know mine are not the extreme's, damit lol more parts to buy!

chris@hps

You may be able to get the seat pressure up a little with a shim under your current spring, however you need to know what you are starting with, or TSP may be able to tell you what you have. I would call them and ask what you have.

Chris

Ryan K

iTrader: (11)

Where did you get those manifolds?

89LS1FOXER

iTrader: (47)

Got them from a guy on PT.net, they are made by full race.

hellbents10

iTrader: (10)

Truck looks great, glad to see Zippy is tuning it for you!

89LS1FOXER

iTrader: (47)

Oh yeah love Zippy's tuning! I have had so many people tune this truck here in colorado, was not happy with any of their results, even zippy's base tune was amazing lol.