Don M

Finally after selling every spring in stock and being backordered for months we have springs shipping to dealers now.

Perhaps by weeks end or early next week they will all be stocked and ready to ship. Im sorry it took so long, we have taken steps to insure that backorders are eliminated in the future.

The on-sale pricing is very good this time around. Even though the pricing is very low, nothing has changed in quality. Matter of fact this is the second upgrade/generation they have gone through to make them better than ever.

As always; the best valve component control, the best raw materials used, the best heat treatment and manufacturing and the longest life of any performance spring on the market for the Cummins. Designed to last the life of the engine and then some.

farmboykjb5.9

Sounds good Don still debating weather or not to do springs though.

Don M

Here is a linkee to the springs, look toward the bottom of the page:

http://www.f1diesel.com/helix.html

dieselfan

man thats a steal

how long will this last?

Don M

The plan is 1 month.

farmboykjb5.9

That is soooooo tempting.

XLR8R

Don, Hamilton springs are also currently on sale - how do the F1 springs compare to theirs? I think we need to know more about their intended application as far as longevity & performance (i.e. primarily daily driver as opposed to competition vehicle).

Engine builders need to know this stuff!

mcolectd

Very tempting. I'm low on money right now though. But still really tempted to suck it up and get some

Hintz

O god, you might of just opened up a can worms. And if you havent read the debate on CompD, go for it, it might change your prospective on things.

XLR8R

Do you have a link for it?

Don M

I will try and write a "reasons for this and that" in the coming days, but there are plenty of "whys" that are based in science, not fiction.

The Pro/Sportsman springs have been around for years and have never broken or caused a valvetrain related failure. Ten of thousands of pieces are out there now.

XLR8R

Thanks Don - I'm interested in the engineering aspects of the designs, and not so much in anecdotal "evidence".

Hintz

I was actually thinking more of the cam thread over there that opened my eyes, but this is a good one also.
http://www.competitiondiesel.com/for...=hamiltons+don
happy reading

XLR8R

Gee, those two don't seem to like each other!

Hintz

Go read the cam thread, and get some popcorn