jzzamesb

iTrader: (9)

I'm wanting to put a fm13 on a 112 in my dd A4, but don't want any surging/bucking issues. Will have a vig. 3200 stall. Should I just go 114???
Please enlighten...

NviouSS

iTrader: (8)

my friend has an F14 112 in his a4. it drives pretty good. i don't think there's any surging at stop lights or anything like that.

TXZ28LS1

iTrader: (5)

i heard with good tuning you can run a 112. but supposedly the 114 is easier to tune, and better for idle. im wondering if there is any power difference between 112 and a 114 lsa?

jzzamesb

iTrader: (9)

supposedly the 112 power comes on earlier than the 114.. I don't want to spin my stock tranny too high!

zspot98

iTrader: (87)

Maybe a dumb question, but why would the LSA affect the driveability. I thought that the different LSA's is when you get into your power, not idle quality?

I currently run a 231/237 w/ a 3600 and after a good tune it almost drives like stock. A tiny bit of cam surge @ idle, but not too bad at all.

TXZ28LS1

iTrader: (5)

im going with MTI X1 cam. 230/227 on a 112.

jzzamesb

iTrader: (9)

I' m sure someone can clarify this more in depth then I can but, the lower the lsa the quicker the power comes on and generally the rougher the idle. Higher lsa idles better but it takes more rpm to generate the full power. Tr's CheatR is like a 117 lsa and is supposed to idle almost stock.

chris93266

iTrader: (5)

My car still has some idle tuning issues because i had it tuned while having a vacuum leak, but it idles in D at stop lights fine and there is no surging or bucking while i'm driving regardlesss of speed or rpm.

233/239 tsp cam on 112

SSpdDmon

iTrader: (10)

Getting the 112's to keep from bucking is in the tune. Usually, it's because the timing is too low or jumping around for light-pedal and 0% throttle conditions. Bumping the timing up to about 43~44* in a few spots and keeping it consistent cures a lot of the problem. The rest is bringing the AFR in line and deciding where the TC is going to lock/unlock. I've tuned two TSP Torquer v.2s on a 112 (one heads and one cam-only), both in A4's. I'd say 95% of the surging that was there at the start is gone.

TXZ28LS1

iTrader: (5)

see thats my thing also guys. i figure most of my racing would be from a roll on the highways. so wouldnt it better to go with a 114 lsa for more high end?

GregWS6&z28

iTrader: (8)

do what I did and get a 113

2000 Tran Zam

iTrader: (2)

by using a lower lsa, you create more overlap. More overlap means less compression which will allow it to bleed off easier (more overlap is what creates lope, and the more lope there is, the harder it is tune tune for surging)

Lower LSA will move the powerband down too.

john563

iTrader: (17)

Its all in the tune.I got a TR224/112 installed this august and had al kinds of problems startup/stalling issues/dying at fast food drivethus/etc.Took my car to a diff. tuner and fires right up everytime and has never stalled.So it depends on your tuner

cws T/A

iTrader: (3)

more overlap produces higher hp to an extent

when I see 112 113 114 115 lsa I think forced induction cam

theinstag8r

iTrader: (3)

i have a f14 on 112 w/ 3600stall. no problems, even drove the car before the tune or the stall. i'm going to upgrade to t-rex this winter and some heads

2000 Tran Zam

iTrader: (2)

typically, if your running a smaller cam you can afford a lower lsa since theres not quite as much over lap to begin with. but the higher the duration, the lower lsa you will want otherwise you will bleed out all your boost.

00slowredz

good luck jzzamesb. im doin a 112 lsa cam swap this winter in mine. i cant seem to decide but i think you'll be fine with the 112. you're in the same boat as me though....we both need tq converters and lt's

Slowhawk

iTrader: (12)

A Cam like a 224 on 112 can run like stock no problem.It's when you get into the 230+ it gets harder. I have probly 6 cars running 109-112LSA's on 230+ Cams.I'm pretty sure they are all daily drivers.It can be done.

jzzamesb

iTrader: (9)

thanks for all the opinions guys..

slowhawk: It'd be nice if you lived a lot closer than you do. I hear you do a damn good job tuning

PREDATOR-Z

I run a 113, purrs like a tiger. 112 is not a problem for the proper tuner.