how often do u have to change the valvesprings?
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how often do u have to change the valvesprings?
does it depend any on which spring u run, what gear, stall u have? does any put more wear on the springs daily driving?
lets say 3000-3500 stall with 3.73 gear and a n2o shot on it from time to time..
f13 from futral
233/233 tq'er cam
233/239 tsp
and just for comparision, tr224's cam
now if i stay under .600 lift, which spring is best?.600+ill do prolly the patriot or prc dual spring kit! NOW, on any of those cams are they going to need to be swapped around the same time, or will a patriot dual hold up longer then say a 918 on a 233/233 cam or will it not even really matter? sorry just wondering, tried to search but coudln't find anything comparing if there was a difference in brand really or type. any difference in ease of install b/t a single or dual or brand of dual springs?
remember im not asking which spring is best for the the tq'er or tr224 cam, i know there under .600 lift, and i know with the tq'er it would be better to run duals for safety! but im asking which type, or brand of spring last longer and besides the cam itself does anything else like gearing ect, have an affect on lifetime. if ur runnign a 3.23 on the highway ur rpms might be low and ive heard of chatter or w/e... would things like this shorten the life or period of time before its required u change them again???
lets say 3000-3500 stall with 3.73 gear and a n2o shot on it from time to time..
f13 from futral
233/233 tq'er cam
233/239 tsp
and just for comparision, tr224's cam
now if i stay under .600 lift, which spring is best?.600+ill do prolly the patriot or prc dual spring kit! NOW, on any of those cams are they going to need to be swapped around the same time, or will a patriot dual hold up longer then say a 918 on a 233/233 cam or will it not even really matter? sorry just wondering, tried to search but coudln't find anything comparing if there was a difference in brand really or type. any difference in ease of install b/t a single or dual or brand of dual springs?
remember im not asking which spring is best for the the tq'er or tr224 cam, i know there under .600 lift, and i know with the tq'er it would be better to run duals for safety! but im asking which type, or brand of spring last longer and besides the cam itself does anything else like gearing ect, have an affect on lifetime. if ur runnign a 3.23 on the highway ur rpms might be low and ive heard of chatter or w/e... would things like this shorten the life or period of time before its required u change them again???
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basically id like to see 15,000-20,000 miles... without so much as a hiccup if i install them right, id like to try and get in the low to mid 11's n/a with one of those top 3 cams.. i just want to get the spring that is going to give me the most miles..
this may not be possible, but id like to get as much as i can is all.
this may not be possible, but id like to get as much as i can is all.
#3
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Look it depends on the lobe and lift of the cams.
Rule of thumb is that you should check your springs every 10.000 miles rgardless of which ones they are.
That does not mean you'll change them, but it is like preventative maintenance.
PP "gold" duals, PRC, Comp 921 etc... should be used with .580 lifts or higher, but again depending on the lobe used.
I'm using 918's on XE-R .581 (wanted light valvetrain) and they are doing well so far after 7.5K miles.
Rule of thumb is that you should check your springs every 10.000 miles rgardless of which ones they are.
That does not mean you'll change them, but it is like preventative maintenance.
PP "gold" duals, PRC, Comp 921 etc... should be used with .580 lifts or higher, but again depending on the lobe used.
I'm using 918's on XE-R .581 (wanted light valvetrain) and they are doing well so far after 7.5K miles.
#4
This is an interesting topic. I would think with a higher stall it would make sence that the springs would get more wear and tear. It seems like if your going to much higher rpms just to get around town, that this would have to make a difference. Anybody else have any good info on this? I would like to know how many miles I could expect out of some good dual springs. I think my only choice is dual springs with my F14 cam, but I'm interested in how long they should last with my 3800 vig. Some more info on this would be helpful.
TIA
Lou
TIA
Lou
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Your talking about the valvesprings that are under the valve covers!?!? I thought they last a LONG time like 200,000 miles. Am I wrong!?!?!?
Originally Posted by rufretic
This is an interesting topic. I would think with a higher stall it would make sence that the springs would get more wear and tear. It seems like if your going to much higher rpms just to get around town, that this would have to make a difference. Anybody else have any good info on this? I would like to know how many miles I could expect out of some good dual springs. I think my only choice is dual springs with my F14 cam, but I'm interested in how long they should last with my 3800 vig. Some more info on this would be helpful.
TIA
Lou
TIA
Lou
#6
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Originally Posted by Michael Ozorowsky
Your talking about the valvesprings that are under the valve covers!?!? I thought they last a LONG time like 200,000 miles. Am I wrong!?!?!?
#7
Originally Posted by PREDATOR-Z
Look it depends on the lobe and lift of the cams.
Rule of thumb is that you should check your springs every 10.000 miles rgardless of which ones they are.
Rule of thumb is that you should check your springs every 10.000 miles rgardless of which ones they are.
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#8
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Originally Posted by 5POINT7
What do you check? What are you supposed to look for? How does a bad spring differ from a good spring?
there are tools that you put the springs in that squeeze them down and test the pressures. i'm not sure if you can do this inside the car or not, but it is what is done.
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Originally Posted by Michael Ozorowsky
WTF!?!!? I've NEVER read about this before. How often should this be done? That is a real PITA
#13
I would imagine stock springs have lost some of their strength by 40-60k miles. And, somechime in with current street car experience, valve seats are probably worn in that range. With really aggressive setups (cam, compression, revs, and lightweight) pistons, piston pins, and valves are also regular replacement items. And the bearings in roller lifters and rockers.
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Dang! You know this is one of the drawbacks to having a CAM'd car. I originally paid a guy down the road to install my cam and springs, but I dont' what to pay someone to do it every 10-15K so I guess I need to just give it a try in another 5k miles. I'm going to replace them if I have to take them out anyway, and put in some Dual springs. I'm currently using Comp 918s and my cam is right up to the rating so I would feel better with more insurance. Still Sucks though!
#18
No. You can swap them while on the car. A little compressed air in the cylinder through the spark plug threads will hold the valves. There's another way to do it using a method that changes each cylinder when it's at TDC one at a time but I'm not that good!
#19
You get another kit. You put it at TDC, back off the rockers, put it at BDC, replace the spark plug with a hose to the compressor (the kit comes with the hose for the spark plug hole), and use an on-car compressor to compress the spring, tap it to loosen the keepers, remove the keepers and retainer (carefully, so as not to drop the keepers in the engine!), remove the springs, put in new springs, replace the keepers and retainers, go back to TDC and replace the rockers.
When you're done you re-lash the valves.
High end drag racers have this down to an art. It takes me an afternoon.
David
When you're done you re-lash the valves.
High end drag racers have this down to an art. It takes me an afternoon.
David
#20
Originally Posted by ZMC_Racing
does it depend any on which spring u run, what gear, stall u have? does any put more wear on the springs daily driving?
lets say 3000-3500 stall with 3.73 gear and a n2o shot on it from time to time..
f13 from futral
233/233 tq'er cam
233/239 tsp
and just for comparision, tr224's cam
now if i stay under .600 lift, which spring is best?.600+ill do prolly the patriot or prc dual spring kit! NOW, on any of those cams are they going to need to be swapped around the same time, or will a patriot dual hold up longer then say a 918 on a 233/233 cam or will it not even really matter? sorry just wondering, tried to search but coudln't find anything comparing if there was a difference in brand really or type. any difference in ease of install b/t a single or dual or brand of dual springs?
remember im not asking which spring is best for the the tq'er or tr224 cam, i know there under .600 lift, and i know with the tq'er it would be better to run duals for safety! but im asking which type, or brand of spring last longer and besides the cam itself does anything else like gearing ect, have an affect on lifetime. if ur runnign a 3.23 on the highway ur rpms might be low and ive heard of chatter or w/e... would things like this shorten the life or period of time before its required u change them again???
lets say 3000-3500 stall with 3.73 gear and a n2o shot on it from time to time..
f13 from futral
233/233 tq'er cam
233/239 tsp
and just for comparision, tr224's cam
now if i stay under .600 lift, which spring is best?.600+ill do prolly the patriot or prc dual spring kit! NOW, on any of those cams are they going to need to be swapped around the same time, or will a patriot dual hold up longer then say a 918 on a 233/233 cam or will it not even really matter? sorry just wondering, tried to search but coudln't find anything comparing if there was a difference in brand really or type. any difference in ease of install b/t a single or dual or brand of dual springs?
remember im not asking which spring is best for the the tq'er or tr224 cam, i know there under .600 lift, and i know with the tq'er it would be better to run duals for safety! but im asking which type, or brand of spring last longer and besides the cam itself does anything else like gearing ect, have an affect on lifetime. if ur runnign a 3.23 on the highway ur rpms might be low and ive heard of chatter or w/e... would things like this shorten the life or period of time before its required u change them again???