VerdeZ28

Im going to do a cam swap soon, right now looking at the TR224 which is 224/224 .563/.563 but im not sure of what LSA. Right now I have edlebrock LT and ORY, K&N CAI, LS6 intake, Jasper TB, and Hooker Catback. when i do the swap ill be swapping in stock 243 heads of of 02 Z06

so basically i need the best drivability possible but still have the most power possible. most tell me that the 114 LSA would give me best drivability and more low and mid range power, but if the 112 is not much worse and could give me more power it be great. ALSO, nobody has acknowledged whether or not ill be able to be at least 20mpg highway with this set up. this is important since i have to drive 50 miles highway everyday and im a measly student...

JTelesone

iTrader: (13)

my old roomate dd a 99 frc with a 224 on a 114. the gas milage is doable on the freeway, but its also easy not to get 20 mpg also. If your commuting on it go with the 114 lsa.

WS6WRX

iTrader: (1)

Not an exact match but I have a GM Hotcam w/ a 112 LSA and I still get 25+ mpg on the hwy.

VerdeZ28

How much power you make? the GM hotcam with 112 lsa im told should give as good driveability and gasmileage as the TR224 on a 114 LSA....

maxspeed96ct

iTrader: (3)

ive got 220-224 and gas milage hasnt changed from stock

from what ive read on here, hot cam and 224s and even 228s gets good milage.


also depends how much city driving you do and how heavy your foot is.

02ws6NBM

unless your tune is off or you have a big stall converter (didnt say if you were a4 or m6) you should have no problem maintain your stock mpg. many people with bigger cams keep stock mpg or get better depending on the tune (lean out for low load conditions). from my understanding, the 112 will bring power in earlier and give you a little choppier idle than the 114.

JPH

iTrader: (2)

'02 #243s= light valves cool. Here are 2 cams that will rock with that combo!
224/232 .590/.600 113+4
228/232 .600/.600 112+5

Mill the heads .015 also and get more SCR in it, and YES ptv will be fine.

2000TransAmWS6

iTrader: (12)

although the Hotcam is on a 112, that cam has very little valve overlap at .050 lift, its not as aggressive of a cam as it would seem.

personally, i like a cam with a tighter LSA. in my experience it seems that with a tighter LSA you won't lose any gas milage on the highway compared to a cam with more LSA, but you may lose some milage with city driving.

litle88

iTrader: (20)

If your an A4 go with a 114

If your an M6 go with the 112

thats also my opinion, I had the Hotcam and loved it! But I got the heads and it had to go for one that was a little better suited to take advantage of them. I regret it and I should of just gotten the vindicator!

Goodluck!

VerdeZ28

yeah i forgot to mention that my car is a M6, but does anyone have any numbers such as what cam your using and your gas mileage?

VerdeZ28

that sounds great but remeber im still trying to get better than 20mpg highway, you think I could do this with that setup? keep up the advice guys

WS6WRX

iTrader: (1)

I made 377whp on a Dynojet, w/ LT's, ORY, Corsa, lid and a crappy tune through a 10-bolt w/ 3.73's.

Driveability is "ok", but that's a function of the crap tune. The TR224 will make more power and drive the same if not better. I chose the Hotcam at the time due to budget, otherwise I would have picked something different.

fccs

iTrader: (26)

I get 25mpg+ on my tsp 228r on 112 also. It comes down to basically do you care about the sound or not, the difference is so small from what most people say. lol

janaka

iTrader: (7)

i have a 224 on 114+4 and i *can* get mid-20MPG on the hwy but honestly I get worse than that as i beat the living snot out of the car any time its driven. I guess thats why its not my DD. Hell my wife took the Z to work today and I heard her 2 blocks away at 715am lol. She enjoys it a lot too.
Next time I'll get a 112 cam for the awesome idle sounds lol

vettenuts

iTrader: (4)

If you look at the recent dyno testing by TSP where they tested several cams of different LSA values, the difference between the power of a 112 and 114 of the same cam is negligable. Go for the best street manners, which is the 114.

VerdeZ28

yeah thats what ive been thinking since im told that the number which affects power the most on a cam is the duration, followed by lift. Drivability is basically affected by overlap, which is a combination of duration and the lsa i believe. am i on the right track?

Mumbles

iTrader: (5)

Do you know of a link to (or where I can find) the results of this test TSP performed? I'm very curious about which LSA to choose as well. I'm even considering an LSA of 116 if it will idle like stock. But before I decide, I'd really like to know the actual HP and TRQ differences between the LSA's. Thanks alot, man.

Hopefully the O.P. can use this information as well and this won't be considered a hijack. <=-)

Bader-X

iTrader: (2)

224/228 at least since you`re manual on 114 or 113 .... why use 224/224 and limit high rpm pull
if you were auto then ok shifting at 5800-6100 but you can go 6300-6400 rpm with the split cam ... also I would recommend the 58x lift one not the low lift lobes .... I wasn`t happy with my 224/224 56x 56x 114 cam when I was auto .... the good thing was the pull away from roll racing at the lower rpm then it goes away ^_^

jlrz28

iTrader: (7)

Go with the 112...

Fabian

iTrader: (5)

I have a similar setup to you. Full exhaust, bolt ons but Im a 3600 stalled A4.

I have a TR224/224 .568/.568 112LSA

Yesterday I calculated my city driving, I got 14.9 MPG. And this INCLUDED 6 passes at the drags last weekend. I can't complain about that, a cammed, 3600 stalled A4. I'm sure I'll get 20 or damn near on the highway. Hell, I'm curious to see what I get without racing it.


Here is a vid for you to hear what it sounds like.
http://www.youtube.com/watch?v=QM8RAThxc7Y