BBQLS1

I am looking at the TR224 cam. I want some input on the 112 LSA or the 114 LSA. Especially those who are currently running this cam. What do you think?

Patrick G

iTrader: (14)

I've run this cam before. The best results I've seen from the TR 224 cams are the ones that are 112LSA with 0 advance ground in. They have excellent valve events with an ICL of 112.

2000Z28M6

iTrader: (13)

I have been running this cam for bout 6months. I picked this cam for the single reason that it will run and idle good on a stock tune. Doesnt mean it doesnt require one though. I'm gettin mine tuned this weekend hopefully. As far as what it feels like compared to the stocker ? Its more aggressive so expect the usual. great lope wont kill you just sounds like you have it modified. The power untuned feels good you can tell it just wants to open up past 5k rpm. Idle will be smooth almost like a the stocker. Dont think all is perfect the car has trouble stayin on sometimes with the A/C on. It runs richer. And it needs bolt ons to make it shine. Havent dynod or taken it to the track, but most will tell you the same this is a proven cam for both strip and street, auto x or drag. Good luck with more info, the techies round here can help you with info I dont have.

Raise

iTrader: (31)

well, one will give u better idle, the other will give u better torque. the 114 will broaden your power band so to speak, so u wont feel as much of a torque jump at the low end. with the 112, idle will be a little choppier cuz u have more valve overlap. this will tighten your power band so when u do start at the hill, it will have a more drastic rise....it wont be so lazy climbing.....better torque down low. personally, i like a choppy idle...sounds mean. and cuz it gives u better torque, im all for the 112. and yes, u will want a tune. a/f ratio will be set right and the car will pick up more hp.

99 Pewter TA

iTrader: (38)

112, I run a TR 227 on a 114 & going to redo the cam install with a cam on a 112 or 113.

DAPSUPRSLO

iTrader: (14)

224/224 110lsa 106icl .568"/.568" lift. 2001 SS M6 with full boltons (except lsx, EWP, Shortbelt). Car made 405rwhp and 406rwtq. Torque was at 380rwtq by 3000rpm. Do a search under DailyAluminumBlock and my info will come up as this used to be my screen name.

BBQLS1

It seems to me that the 114 would give better torque down low because less of the cylinder pressure is bled off. I also would think that the 112 would be better at higher engine speeds since the overlap will help produce a scavenging effect. Am I wrong here?

Raise

iTrader: (31)

u know wut man, i thought the same thing. i talked to tons of people about this, and they said it was just the opposite. i was looking at wide lsa the same as short duration, but i guess its just the way the duration and lsa work together.

SmaknaSS

iTrader: (1)

That's what I thought, but from what I read and now believe, the 112LSA will give you more cylindrical pressure over the 114LSA which means more torque for the 112LSA over the 114LSA of the same cam.

bad0211secws6

iTrader: (6)

i put the g5x1 on 112 in mine and its got great driveability after the tune
i was afraid the idle would be to choppy but its great.my buddy has a fm11 on a 114 with 4 deg advance and his idle is just as choppy.and our cams have almost the same lift and duration.and everything iv'e read says the 112 has more torque down low than the 114.the 114 will peak a little higher the fm11 on his car peaks at 6600 and mine peaks at 6400 but holds it to 6900 his holds to 6900 also

DAPSUPRSLO

iTrader: (14)

You can't really just say one of these values does this and one does that. A narrow lsa will produce more overlap in general which equals more power (both torque and horsepower which is just an off shoot of torque). Also, because my particular cam had a very early opening and closing of the intake this torque was made very very quickly.

Four valve events happen in every 4 cycle motor. Intake valve opening/closing and exhaust valve opening/closing. One must consider these events to really talor their power band to their liking.

Phil'sC5vette

iTrader: (4)

I have the TR224 on the 114
it seems like stock from 0 to 3000 RPMs. from 3000 to 6000 it's fun
with the 114 LSA, you can tell the car has a hint of something going to.
with the 112, there's no hiding you have a cam.
go with the 114 and a set of AFR and you'll have 410 RWHP

Ragtop 99

iTrader: (7)

I had the 112 LSA. It was definitely a good cam.

rtr2001ss

iTrader: (2)

Just Bought the TR224 112, installing soon!

Ryan02SS

iTrader: (3)

I like my 112 version. I have my idle speed set at 875rpms AC off and 925 AC on and thru the cats it lopes like a 114 grind. Lowering the idle speed will produce more lope but it seems to idle a whole lot better with the higher speed.

Nittany_marine

iTrader: (7)

I had it on the 112, and was really happy with it. Loped nicely

BBQLS1

On what LSA does I had to look this up:

"it changes the most-efficient speed range. An engine that has a camshaft with a smaller lobe-seperation angle will generally have better breathing characteristics at higher engine speeds, and typically this results in more top end horsepower and a loss of low-end torque. An engine with a greater separation angle will have better low-rpm breathing characteristics, and this results in more low-rpm torque." -Smokey Yunick's Power Secrets by Smokey Yunick with Larry Schreib

I think this is the correct assumption.

I looked in my Comp Cams Catalog, and they didn't really define how it affects power band, just defined what it was.

JNorris

iTrader: (4)

I am running this cam with the 114 LSA. It is a great cam with a stock like idle and no drivability problems. It works great with my other mods. I highly recommend it.

John

DAPSUPRSLO

iTrader: (14)

LSA is not solely responsible for where the rpm and power band lie as I said before.

A 230/230 110lsa cam with four degrees of advance will have a much earlier power band then a 230/230 110lsa cam with no advance or some retard in it.

BBQLS1

Yes, but I can advance or retard the cam if i need to. I was trying to get some input on what people thought about the two different LSA's on the the TR224 cam. I want to pick one of these two, but I am not sure which LSA I'll go with. The 112 seems to be the more popular choice.