What's the best spring to go with on my cam?
236/248 .570/.571 105.5 LSA
I've heard of a good couple like the comp doubles or beehives or pac beehives.
I was wondering what spring type I should use for a DD hydraulic roller?
Also what about spring pressure? What are the adv/disadv to a high spring pressure seated and open?

 

Depends on the lobes really.

I recommend checking the cam card for the spring type and pressures the manufacturer recommends.

PS: Thats a hulluvalot of cam for a DD ~350ci and 2k stall .

 

It's a really TIGHT LSA too!!!

 

yea i know. ha. I bought it off another member who go it custom ground and he said it fell between cc306 and gm847 which is what I was shooting for. I'm using a low stall because its my DD and I don't care about how I "launch". Where is the card you are talking about? On the outside of the comp cam box?

 

Not recommending the stall for the launch, but to eat up the cam surge. That cam will be very happy in a 383, but in a ~350 it will buck on idle and a small stall will make the whole car lurch forward when the rpms twitch instead of slipping and "eating" the cam surge. Plus it will get you in the higher rpm ranges where the cam makes power, so it doesnt feel like a dog when just cruising around town like a big cam car will. You may be able to live with it, but it will be pretty severe with that cam and only a 2k stall . Just a word of warning, but don't take my word for it, try it yourself. Everyone has different tolerances of what they can live with.

The cam card should have come with the cam - it has all sorts of nifty information like the in depth specs besides just duration/lift/LSA and all the recommended parts to run it with.

Sounds like a killer NA grind, and it will idle like its possesed .

 

yea, I know it's going to have some surge to it. But I'm fine with that. I go pretty hard on the throttle in the city so it'll be quickly passed. I wanted a bigger stall, and maybe if I can pick one up I will, but for sure will get a tranny cooler with it so I wouldn't kill it with temps. Break downs are not an option. But for sure I'm getting 30-36lb injectors to go with it. And my rear ratio is 4.11 not 3.73 like I thought. That'll help won't it?

 

120-150# on the seat and 300-350# open. Beehives wouldn't be a bad idea but a good conventional spring will work as well. I wonder how you are going to like that cam? As "Puck" said, everyone is different. I doubt I could live with it in a DD. That cam has a LOT of overlap. However, the 4.11's will help, so maybe it won't be so bad.

Rich

 

that thing will be annoying to drive in a DD imo

then again I'm a baby cam guy

btw big cams mess with driveability ALOT more than a big convertor, too many people believe anything over a 2800 or so stall is for race cars only

 

I was looking at the beehives, but wasn't sure what locks and retainers to use. Is there a kit? I also saw 7* and 10* locks or retainers, which is better?

 

Here's a nice spring kit.

https://www.patriot-performance.com/...&cat=52&page=2

 

look nice but 500 for springs is out of budget.

 

Where are you seeing $500? It's $255 for the complete kit.

 

says you need one kit per head.

Edit: Read it and it said included 16 so never mind. stupid astrik thing got me.

 

Don't worry about 7 degree v. 10 degree retainers. Get the retainers recommended for the springs you decide on. That Patriot kit seems way to cheap. Doesn't cost much more than the price for a good set of Ti retainers. Something in it must be junk.

Rich

 

okay, whats better, beehives or double springs? like adv/disadv