im going to be puttin a cam in but im unsure of the lsa. im pretty sure i want the 230/236 but im thiinking about a 108 or 110 lsa, becuase we put one in my buddys and it was on a 112 and i didnt have near enough lope for me. it will be going on with port and poshished heads, and longtubes. i was going to go with the 236/242 on a 110. but i dont want to get that bad of gas mileage and cam surge becuase i run 2000 rpms a 70mph, so im worried about the surge.

so im asking what are yalls opinions on what i should get and why.

and does a lower lsa (like 108) create more cam surge or is tha just duration.

and how much does it cost for a custom grind cost form comp cams. becuase i was think about 234/239 with matbe a .570ish with 1.6rrr and on a 110. and i do want the ex grind. but i dont know what it would cost. but i guess i can call them.

has anyone ever had one custom ground from comp cams and were you pleased with it.

thanks all.

 

I got a custom gring comp from nu-tek before and it was about $270 i think, maybe diferent now though.

I would say 110lsa at the most. I know zturbo ran a 108lsa on a n/a engine, and liked it, but said it had tons of cam surge.

 

I would go with 110 lsa. I can tell you that your tune can have a major effect on idle lope, sound.

 

Go with the 110, that is what I have, I would not go any lower or like Kmook said you will have tons of cam surge...

 

You should be able to get the cam with the specs of your choice for the same price as the XE 230/236 on a 110 or 108LSA. The 230/236 is a custom grind cam. I've got a 230/236 on a 110 and haven't had any troubles.

 

For those with 110LSA cams. How's your top-end power been affected?
How do you characterize your HP range and your tq powerband?
I was under the impression your tq would be good down low, and your hp may be affected in the top-end. Great for 1/4 mile race.
About giving it a little run in the highway to 125mph or so. Do you feel your torque dying sooner?
In other words, I'd like to hear some reviews pro's and con's of a 110 and 112lsa.
Thx-Goose.

 

Well, I haven't really gotten to test it enough to make any conclusions. The first time I got on it after break in, I lost 2nd gear. I don't have the money or time to fix it right now so I just limp around with no 2nd. First gear is pointless if I hammer on it. From what I can tell by experimenting in 3rd gear, it doesn't feel like much below 3000RPM but really pulls once I reach 4000 and feel strong up to when I shift at around 6200-6300. I do have heads on here that I ported myself and they aren't all that great which I'm sure is taking it's toll on my power/torque curves. After I fix my tranny and can get to a dyno, I'll be able to tell more. So far, this is all I can say about where the majority of the power is.

 

so the lsa does affect the cam surge. i did not know that, i thought that just the duration affected. thanks

so what do yall think about the 236/242 on a 110lsa
to much or what. or would i get just as much power out of a 230/236.

when you get a custom grind can you get more lift on it if you wanted. becuase if my heads flow best at .550 i my want the duration of 236/242 but less lift. by the way what is the lift on the 236/242 with 1.5rr

 

Ive got the 230/236 on a 110 in my car. I really like it. So far, with no o2's hooked up (tuning is wayyyyyy off) Ive run 12.2@111 with a 1.67 60ft. Thats with a turbo 400 and 3500 stall. Car has massive amounts of low end. And it seems to like shifting out at 6200rpm. Fine by be, just means less stress on the motor. It LOVES the spray. Even with a dying fuel pump, it went 11.2@120 with a 1.65 60ft. I couldnt spray it untill the end of the 60 mark or it would spin the ET Streets. Tuning is the main issue on this cam. I just got my PCM for less tuning in the car, and its not running too well. Tuning for a 110lsa is a bit diffrent than a 114 like most cars have. Cam surge really isnt that bad, IF its tuned right. Hopefully the 15th of this month at SLP day down here, I will get some help on some tuning, and get a 11 on motor and 10 on the spray. Ill be happy then!

Kyle

Oh, and BTW, you can beat the lope of this cam. It HITS!

 

thanks for the info.

antone esle have any opinions. keep them coming

 

i have the 236/242 on a 112 LSA in car (video in sig)
i have stock heads (too lazy to put new ones on) and a 383 (so it tames the stroke a good amount) I also have a 2400 stall (def need to upgrade ASAP!) mail order tuning (need dyno!) and exhuast leaks so bad i cant turn the heat on (blew all the header gaskets to hell) so its running so rich you could prob light the exhuast. it makes me seriously cry when i'm outside its so rich.
in an A4 i got 17mpg on the highway

custom cam-
combo motorsports

www.cmotorsports.com
they are great with that stuff!

edit:
concider the power/powerband/tq /tq band of a cam too

 

17 mpg not to bad

 

I thought my hotcam sounded good on my lt1..My friend got a 226/236 .525/.525 110 LSA put on his stock headed ls1 with boltons..that sounds wicked and is how a cam should sound. When untuned there was a large amount of cam surge, annoying as hell. He took it to Bryan at pcmforless and the cam surge is now very minimal. The car peaks at about 5,800 and pulls flat to about 6,300 then dies off somewhat. He shifts at 6.4-6.5. Definately go for the 110LSA. Bigger is better

-Corey

 

decisions decisions, i dont want to be one of those people that say i wish i would have went bigger. but i know i at least want a 230/236 on a 110 or bigger.

 

Lobe seperation angle and duration are closely related when it comes to overlap (which is what causes the surging and lope). LSA is what determines the timing events between intake and exhaust lobes. If you move the intake and exhaust timing events closer together (with a smaller lsa) than you increase overlap time. If you the lsa remains fixed but you increase duration you will also increase overlap periods.

I personally couldn't see myself going with a 108 lsa for these engines on the street. If all you want is one nasty idle it'll work great but as far as power vs. bad street manners go it's probably not worth it.... IMHO.