Shtbox1gtalon22
Probationary Member
- 24
- 3
- Mar 13, 2024
-
Texas
I have a stock head what cams do yall recommend over stock cams without upgrading springs,valves,ect.
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I got the car, put a new Trans in it, 5 speed. Then I had issues with the car not going past 4.5k rpm and no response when mashing the peddle probly because I did put the air intake on. The balance shaft bearing exploded and so now I'm building it up but little by little.Kelford 264s or 272s
Auto, use 264s, 5 speed, use a 272.
For now I'd like to stay stock head should I just keep stock cams?GSC S1 with some Kiggly Racing Steel street springs would be a perfect cam for that setup.
Would Brian crower Steel springs and retainers work for 274s?Stock springs are probably pretty tired by now. You could end up with valve float at higher rpm
There's a number of cams that don't require replacement springs, like the 264s, but why not replace them with fresh, new ones that can take the ramp rates bigger cams exhibit?
I have the gsc s2 274 camsBC springs and Ti retainers (to save weight) is more than enough for "272s", assuming that is what you meant. Every manufacturer has a different interpretation of 272, there's a thread or two on here comparing various cams.
They can't be ran on stock spring tho right?Those are good cams but they do have alot of lift. 11mm of lift and 274* of duration. They will give you room to "grow". Very close to Kelford 272s, which I LOVE, but more suited to 500hp+ cars.
I might stay stock cams till I decide to upgrade the headThose are good cams but they do have alot of lift. 11mm of lift and 274* of duration. They will give you room to "grow". Very close to Kelford 272s, which I LOVE, but more suited to 500hp+ cars.
Definitely understand I appreciate the wisdom ill take that advice and apply it, I wad thinking the kiggly springs?The main deal with stock springs are that they're old. The older and more used they are, the less they will return to stock size. At higher RPMs, they can exhibit valve float, where they do not return to their original shape fast enough to avoid the piston crown from sharing the same space. Also, valve float can extend your overlap or individual durations, working against your tune, even if they don't hit the piston. Basically, they become soggy.
Springs are pretty cheap in the grand scheme of a rebuild, I'd just get a new set to know that your cams are being used to their fullest potential and avoid any problems.
I upgraded my springs and still use stock cams, just because I knew they're old -- over 30 years old.
I already mentioned which springs to use, the Kiggly steel street. They are proven. If you don't want to put the money into springs/retainers, don't bother with cams.Would Brian crower Steel springs and retainers work for 274s?
Yes, as long as if they are still in good working condition, the late evo's stock beehive springs and duralumin retainers can be considered as upgrade from DSM stock.Are evo 8 springs and ti retainers still considered a spring upgrade?