99socalFRC

iTrader: (6)

OK So I am in cali and I want to keep it smog legal.

Heads will be some version of a 243.

So the cam/lobe options are:

TR224 on a 114
TR227 on a 114
TSP 224/228 581/588 on a 114
TSP 224/224 581/581 on a 114

My question is which lobes are most agressive? I think that from what I have read the TSP will use the XER lobes and that will be the most aggresive? Or would the TR lobes be better?

I plan on using double springs so valvetrain wear/ breakage will be limited.

I just want to maximize what I can do in cali, what does the split do for me?

How much HP gain might I expect from the additional lift on the TSP?

I suspect I am just splitting hairs here so tell me if this is the case?

PREDATOR-Z

Yes on splitting hairs
TR224 and TSP 224 (both 114) will pass but only with fresh cats (need check) and good tune.
Ideally to be on safe side a cam with -6* overlap is a sure bet if properly tuned with health motor.

99socalFRC

iTrader: (6)

So the TQ/HP #'s on all these cams will be very close then? I have read the split in duration and lift is good for a few ponies, any truth to that?

Dragula

iTrader: (5)

Don't you need more exhaust duration and or lift to get through the stock exhaust manifold and cats (smog legal).

Did you look into the TR Cheater Cam?

http://www.thunderracing.com/catalog...vid=7&pcid=122

Or Cam and Head package:

http://www.thunderracing.com/catalog...vid=7&pcid=289

99socalFRC

iTrader: (6)

Well I have kooks long tubes and mid pipes so it isn't stock there.

Anyone else on the power potential of each cam listed?

PREDATOR-Z

Do some reading, there is zillion of threads on cam that range (use search)

99socalFRC

iTrader: (6)

I have read so much already, I just hadn't reallyfound any thingcomparing the 224 options, only the 224's in general I was hoping to decide if the 224/228 would be worth going for, and if the TR lobes made anymore power than the TSP ones.

5.3LJimmy

iTrader: (10)

If your trying to pass smog the 224/224 has less overlap and will be the better choice. You wouldn't see a big difference in power w/ a 224 or 228 on the exhaust lobe anyway, nor between the different cam grinds. You're tossing around about a 5 horsepower difference with the options listed. I also found this poll discussing the 224 cams: https://ls1tech.com/forums/showthrea...t=tsp+224+dyno

99socalFRC

iTrader: (6)

Thank you, that is what I was looking for just to know what kind of difference I am looking at, if I am running nitrous does the 224/228 advantage become greater?