Pelven

Hi!

Done a LOT of reading in here as well as trying to understand one of the more complex parts in an engine and even though I think I understand most of the stuff it's hard to relate it to real world performance or differences...

I'm basically looking for a DD cam that is going in my LS1 with an LS6 intake and Pacesetter long tube headers. (The trans is a 200r4 with a 2400staller)

I've come down to two likely candidates but not sure which one would be the better choice.

.224/.228 .581/.589 114 LSA

OR 228/228 .588/.588 114 LSA

Going with the 114 LSA since it is supposed to idle a bit better as well give a bit more torque down low. (If I understood it right)

They are very simular and if I'm right the top one should have a bit more torque since it should have a bit less overlap? or not?

Wouldn't also the top one have a bit more Dynamic compression?

Any input is highly appreciated.

Pelven

Anyone?

PREDATOR-Z

The 224/228 will have a bit more DCR. Both cams would be almost equal with the 228 having a bit more on top. Both will do fine with your stall. I would go for the 228.

Pelven

Hi!

Thanks for the help.

Why would you go for the 228/228? wouldn't more DCR be the thing to go for?

Follow question, I've read that the stock 241 heads don't utilize more lift past .6 or is it true but with a slight modification? (Would the benefit not come close to the consequences? such as higher spring wear?)

LSA at 114 is a good choice? Read that Patrick_G had a similar grind but with LSA110 and it made a ton of torque but if I understand it correctly less LSA means power higher up and a lopy idle while a longer LSA means power down low with a smoother idle. Or rather less LSA usually means more overlap which in turn means power higher up. (224/228 .637/.639 110LSA (+0))

This is very confusing....

eamador11

Autos have great results with 224/230 .581 .588@114 You may have to get a higher stall like a 2800

The lower the LSA number the choppier the idle but better torque is down low. 114 and higher is geared for better driveability but the power band is up higher in RPMs. You lose a little torque down low but you gain it back with gears and a good stall. The lower LSA numbers 112 and below are more for 1/4 mile track.

For more of street use, 114 is what you want.

Pelven

Hi!

For economical reasons I'd like to keep the converter I have. (Haven't even installed it yet.. )

The lower the LSA number means more overlap? if so I will kill low power right? Or did I misunderstand you?

From cam guide:

"Long overlap periods work best for high-rpm power. For the street, a long overlap period combined with long-duration profiles combine to kill low-speed torque



- Reducing overlap on a long-duration cam will often increase midrange torque at the expense of peak power, but if the average torque improves, that’s probably a change worth making."

That is why I can't make sense of Paticks grind of (224/228 .637/.639 110LSA (+0)) where he has torque surplus... Wouldn't a LSA of 114 give even more torque down low? or is his LSA of 110 suited more for a higher torque in the mid ranges and he has to have a stall of 3000+?

JPH

iTrader: (2)

Agreed!

Jason 98 TA

iTrader: (4)

Checkout my thread comparing all the different size camshafts I've tested on our engine dyno. You might look at the TSP 228 camshaft, it made very good power compared to the 224 & 228 camshafts we've been discussing. I personally would try to get a little bit tighter LSA if at all possible, with smaller camshafts like this I think the 112 would drive great!

Jason 98 TA

iTrader: (4)

bortous

Would a 224/230 114lsa on xer lobes work well with Cnc l92 heads and 11:5.1 compression? I also have a fast 102mm intake. Will it make good low down torque too with my setup?
My car is also auto but I heard this cam doesn't require a higher stall converter. I'm going to fit a 2500stall anyway.
I would appreciate anyones advice or opinion.

KING Z28 HAWK

iTrader: (11)

This is an old thread buddy you should start a new one. However pretty much everyone will say go higher on the stall most would say nothing less then 3500. If you start a new thread make sure you put all your mods and what you plan to use the car for and if your looking for peak power or power under the curve, ect...

01ssreda4

iTrader: (96)

^^^^agreed. Let this one stay in the trash and start your own. Most won't see your question anyway.

Damian

iTrader: (89)

Or just use the search rather than cluttering up the forums with questions that have already been asked 9 trillion times.