not7fifteen

iTrader: (8)

Ok, everytime I think I've got a cam picked out I second think it and cannot decide simply on my own judgement. I've been a FI guy in the past and this is my first NA car. I'm probably going to part the nitrous kit from my car and just stay NA or possibly run a very small jet and spray very few and far between.

HERE IS WHAT I'M WANTING

1. I don't want to rev the car to the sky, would like to keep the car under 6200RPM or so, looking for power all over the curve
2. I'm wanting around 400hp, more is great, but thats what I'd like to see
3. I'm not looking to upgrade heads, want to keep stock heads
4. I do not mind a choppy/lopy idle


That said, please don't reccomend me a TREX or MS3 etc...

I was thinking something in the 230 range as far as duration and under .590 of lift. Whats getting me though is the LSA. I'm a 3600 stalled auto with 3.73 gears. What LSA should I choose? Should I have a certain ammount of advance ground in? 112+2, 110+4, etc.?

I read in another thread Patrick G saying a "no-brainer" choice for a stalled auto was a 110+4... Could someone explain me why this is a good choice?


Thanks in advance, and I'll check this repeatedly!
Eric

bad6as

iTrader: (17)

so cam only look in to the thread preditor z posted about reverse splits
https://ls1tech.com/forums/generation-iii-internal-engine/652563-reverse-torquer-cam-other-side-coin.html

hammertime

iTrader: (1)

Hitting 400rwhp with an A4 and stock heads, and at the low rpm (small duration) you've given is going to be a challenge. Your automatic is soaking up some of the power that dyno queen M6 cars put to the wheels. Don't forget HP is a function of RPM, and limiting the RPM potential is limiting how much power you can make.

Patrick G knows his stuff, and perhaps you would be well served by running his torque cam ground on XE-R lobes. 224/228 .581/.588 110LSA. Install it four degrees advanced to bring the focus in the power curve down some to meet your needs, and increase your dynamic compression while you are at it. Keeping the rpm limit at 6200 is a smart thing tho, as it will save your tranny from self destruction shifting at 6500-6800 rpms with larger cams.

As stated above, Predator Z has some good knowledge of reverse split cams, which work well with stock heads. Otherwise, I might suggest you consider some budget P&P LS6 heads to get to your goal of 400hp N/A.

Good luck!

gts500

hmmm... thats hard but it can be done like wht hammertime said but, hay u have stall plus

3.73 why dont u chose a big cams like ms3 or g5x3 its well give u alot of launch torque

and good hp near 400 i guss? good luck

not7fifteen

iTrader: (8)

That hit the nail on the head, and is my main reason for wanting to keep the powerband lower to preserve the tranny a bit... I've got a tranny cooler and shift kit and its holding great now, even after running a couple bottles through it with the 100 shot. I'm just trying to keep it that way. I've heard horror stories of a lot of people running their massive cams twice down the track and losing their trannies after a couple runs with peaky power and high RPM shifts.

I guess what I'm really looking for is Mid-Low 11's Cam only, not so much breaking a HP number.... Is this too much to ask on stock heads NA?

SSwt00SS

iTrader: (18)

Not really sure if your only goal is just 400rwhp, or if the car will see more track than street, a trailer queen, what? I guess going off what I have read I would suggest a TSP Torquer v2. If you want a little more low end get the 112lsa though all 3 choices for lsa are good. I also suggest all supporting mods for a cam install as well. that should make you happy...

http://texas-speed.com/shop/item.asp...d=168&catid=44

98Z28MASS

iTrader: (6)

As said above torquer v2 and v3 are good cams, as is the fm12/fm13, tsp 228/228, tr 230/224 (reverse split for stock heads). Also an auto with a good sized stall is going to dyno lower than an m6 so i wouldnt be too caught up witht he 400 rwhp number. If you do want to hit that number then I say g5x3 and you will be close. Low to mid 11's has been done with stock internals (although they are huge stall, bolt on, lightened cars) so I would say a decent sized cam with your 3600 stall and a set of sticky tires you would be close, but you will be pushing your factory 10-bolt to the limit.

Ragtop 99

iTrader: (7)

Try a 228/228 108 108. Install with an adjustible chain and try it advanced 2*. It will have wicked midrange and probably make it to a 6200 shift. It if runs out of breath too early, you can retard it to straight up.

not7fifteen

iTrader: (8)

Thanks for the help so far guys, and that Preditor Z thread was very worth while to read... Definately ruled in a possible reverse split cam for me...

Any other suggestions?

santiago

iTrader: (28)

well there goes my suggestion

not7fifteen

iTrader: (8)

haha, had the car had a built tranny I'd be all for a monster cam... I just don't want to have to wind it up so high to be in the power band.

TXZ28LS1

iTrader: (5)

yep predator and patrick are very knowledgeable. im also looking at the reverse split.

eamador11

LG-G5x3@114

JBIRD02

iTrader: (4)

fwiw, my cam and #'s in sig.