to double or not to double?

[CJH06L]

im looking at putting a cam with new springs in the ve ss. does any1 have any issues or herd of any issues with patriot double valve springs?

[Oztrack Tuning]

Heaps of Pat Golds we have used and they are great. I know a head builder in the USA that has used hundreds of sets and has had zero failures or problems. If you want to go revving over 7000rpm though - best to use Pat Extremes.

[CJH06L]

thats alot of revving :) think id be good with the golds.
im still bit unsure about the cam size tho. any ideas?

i was thinking 224/228?

[Daves8]

i have 224/228 639 lift with patriot dual springs and they have held up well...... close to 10000kms and all good so far

[CJH06L]

how does the pwr feel. was it a good difference?

[TIR33D]

where are you at buddy,someone will take you for a drive.

[VTR8Clubby]

I've got patriot golds in my LS1 with a 220 220 cam. No probs here so far.

[CJH06L]

where are you at buddy,someone will take you for a drive.

ah its cool. im newcastle(nsw) way.

[Pepps]

I've got patriot golds in my LS1 with a 220 220 cam. No probs here so far.

Are they noisy at idle and under operation?

[WOMBIE]

You'll have an increase in valvetrain noise once going the cam route no matter what but a good motor oil will always take the edge of it to a degree :)


I run dual Manley's btw.

[cosmo vyss]

They are a great spring and I have never heard of a failure yet. They are a tad on the noisy side though. You have to expect that with a head a cam change with the valves opening and snapping shut.

[Pepps]

But is it noisy in a bad way though?
Or do all the other awesome sounds that come with a cam change overule it?

[bush_basha]

would you rather put good ones in even if there a little noisy, or put in shitty ones that will snap as soon as you hit 5500rpm just cause there quieter? you shouldnt need doubles unless your going to a pretty monster came.

[VZSSL986LTRUTE]

So if ur going a massive cam double valve springs are a must???.. What is the difference???

[VTR8Clubby]

Are they noisy at idle and under operation?

There is only a little valvetrain noise. It's not offensive at all and I only hear it if I'm sitting next to another car at lights or in the garage. I can't hear it at all once I'm moving.
I would assume that the noise is coming more from the aggressive lobes(X-ER) and high lift(.581 .581) on the cam more so than the springs.
I'm also running the stock push rods and I've been told that going to 25thou longer rods will reduce the noise.