At What Point Would I Need Titanium Retainers and SS Valves?

[spadepro22]

Thinking about a motor rebuild and want to know at what power level will titanium and ss valves be needed? I plan on going with manley springs and kelford 264s.

 

[bradselph]

depends on how high your gonna be revving and how aggressive the cams are.


i personally have stock valves with Manley springs and titanium retainers running dks280 cams at 8250rpm and haven't noticed any valve float issue. im also not bouncing it off the rev limit every chance i get.

 

[genegoesfast]

Also the type of fuel. A highly corrosive fuel would possibly necessitate the need for stainless valves. Obviously ti retainers would be for weight reduction and higher rpm.

 

[BogusSVO]

Depends on valves you have in the head, if you have some "unknown" replacement valves in the head, and not 6T valves, then getting some SS valves would be a good move.

The Ti Retainers, as stated above are for weight reduction higer up in the RPM band.

 

[PredatorSniper]

So who sells a good spring/retainer kit?

 

[BogusSVO]

So who sells a good spring/retainer kit?

The springs needed will be decied depending on the cams you select.

 

[spadepro22]

Will stock recut valves, stock retainers, manley springs, 264 kelfords be ok to take to 8k?

 

[BogusSVO]

What is the part number for Keford 264?

 

[genegoesfast]

Check out kigglys new beehive springs with lightened stainless retainers. Great deal on a great spring. You'd be good to 10k with those on most cams.

 

[spadepro22]

What is the part number for Keford 264?

I don't have a part # for the cams, they will be orderd by force eng.(they are building the motor if I decide to rebuild)

 

[genegoesfast]

Steel Street Beehive Valvesprings 4G63

 

[BogusSVO]

I don't have a part # for the cams, they will be orderd by force eng.(they are building the motor if I decide to rebuild)

Is that the combo They are suggesting you to run? Then the builder has done the math and deems it a solid set up.

You have to trust your enginebilder.

But with out the cam specs or part number, I can not give you an awnser.

 

[Diamond Star Werks]

Will stock recut valves, stock retainers, manley springs, 264 kelfords be ok to take to 8k?

Buy stock evo 8/9 springs and retainers. They are beehive springs and are good for 8.5k.

Stock valves will be just fine as long they are one piece. If your changing /replacing valves ss valves from gsc would be really nice.

I'd suggest hks 272s with that.

 

[spadepro22]

Is that the combo They are suggesting you to run? Then the builder has done the math and deems it a solid set up.

You have to trust your enginebilder.

But with out the cam specs or part number, I can not give you an awnser.

272 at first, but I told them I wanted better spool time since its a street car. I do trust the builder. Just asking, because in the future if I wanted to make more power Im weighing my options to get them now. I was wondering the kind of hp numbers that kinda requires them. If that number is above any goal in my future, then I won't need to get them, but if its close, it would smart to go ahead and get them now.

 

[flawlessTSI]

I used evo beehive springs with some reground 272 cams and shift at 9k in my auto hx40 car. No sign of float.

 

[Diamond Star Werks]

272 at first, but I told them I wanted better spool time since its a street car. I do trust the builder. Just asking, because in the future if I wanted to make more power Im weighing my options to get them now. I was wondering the kind of hp numbers that kinda requires them. If that number is above any goal in my future, then I won't need to get them, but if its close, it would smart to go ahead and get them now.

Hp doesn't determine whether or not you need to upgrade your valvetrain. Your cam choice will. Different cams require different upgrades. And not all cams are the same. Gsc 272s are far more aggressive than hks 272s.

 

[viperlp01]

Buy stock evo 8/9 springs and retainers. They are beehive springs and are good for 8.5k.

Stock valves will be just fine as long they are one piece. If your changing /replacing valves ss valves from gsc would be really nice.

I'd suggest hks 272s with that.

Evo beehives are an upgrade but they are not great. At boost levels in the 30 psi and revving in the 8k range I have seen valve float.

The Kelford 264s have a decent amount of lift but a less aggressive ramp, The customer also told us that his rev limit will be 8k so the Manley's will work great. I agree that the Kiggly streets are a great spring but his budget is only allowing a spring of this caliper.

Here is the cam card for the 264 kelfords.
1-TX264 Camshaft Set - EVO 1-3 4G63 VR4 - Kelford Cams

 

[jpmxrider489]

I am also trying to find out what spring to run with my hks 272s. I'm leaning toward a stock head besides cams and maybe crower springs but I'm not sure what is a NEED for big power.

 

[Diamond Star Werks]

I am also trying to find out what spring to run with my hks 272s. I'm leaning toward a stock head besides cams and maybe crower springs but I'm not sure what is a NEED for big power.

I would venture to say hks 272s stock would work at stock rpm levels.

 

[viperlp01]

Stock springs new might be ok. Most springs have 150k+ miles and 20 years of use. I wouldn't trust them for the cost of a new set of Manley springs.

 

[ZombieSix]

Stock springs new might be ok. Most springs have 150k+ miles and 20 years of use. I wouldn't trust them for the cost of a new set of Manley springs.

Totally agree

 

[foxracing4500]

what about automatics? if I wanna set my shift points to 8500 rpm would the transmission be "ok" with that on a built head or do I need to run full line pressure in all the gears?? I am sorta going through the same thing as the OP but my auto shifts below 7k.

 

[viperlp01]

An auto trans would live much better in all situations with increased line pressure. Adding a shift kit would help a ton. To keep my trans alive at the power level I am at full line pressure shifts all the time with the pressure cranked up at the valve body.

 

[Diamond Star Werks]

Stock springs new might be ok. Most springs have 150k+ miles and 20 years of use. I wouldn't trust them for the cost of a new set of Manley springs.

Correct. I meant new ones. Not 20 year old ones. Lol

 

[dsmfa9nutter]

For what it's worth, when tested, manley springs usually downrate their springs, ie, they usually have higher pressure spring than what they're rated at. It's one of the reasons I went with them. A little cleanup on the ports, manley springs, otherwise stock head, 8.5k rev limiter all day long. I've got a set of titanium retainers laying around here somewhere that'll go on eventually but I won't really need them until I feel like bumping the limiter up to 9.5k.