thirdgenbum

iTrader: (17)

ok, so i've got the block at the machine shop right now and i'm trying to figure out camshaft selection. i've got a set of 11512 diamonds on the way and the block with go .030" over once the pistons arrive. this build was originally going to sport the trickflow 220's but i'm running into a bit of a financial situation (long story, but i got hit by a drunk driver in my DD truck and am fighting with insurance) so i'm going to re-use the 317 heads that came on my lq4. obviously i'll need to do a spring upgrade, and i'm going to have the heads milled to 64cc combustion chamber size, which will yeild ~11:1 compression. because of the lack of time/funds, i'm going to leave the cylinder heads stock otherwise.

so, what kinda camshaft should i be looking at? the car is a 3400lbs 1990 camaro with a 3600stall VIG converter/4l60e with a 4.10 gear. i'm using a 26" tall tire on the street, and a 29" hoosier at the track.

i want the car to be relatively street friendly, as i want it to be a reliable "second car" for incase of my truck getting messed up again, but i don't have AC or anything like that so it's not like i'm looking for a completely smooth ride. i don't want to have to spin the motor either, something that makes power to 6200rpm or so, and has a torque curve like a table top. the car ran 12.0's with a 212/219 cam'd, stock 241 headed, ls1 earlier this year. i'd like the performance level to be in the bottom 11's, or maybe upper 10's, n/a.

any suggestions are appreciated...if you or somone you know has a used camshaft in good shape in the range i'm looking for, please pm me!

PREDATOR-Z

Let me recap:

low 11s/high 10s
64cc milled 317s
3600 stall
3400lbs

Hmm how much nitrous do you plan on adding, because there is no way you'll hit those target ETs with the size cam you'll be able to put in there at that weight.

stumprrp

iTrader: (2)

my camaro weighs about the same as yours and with stock heads/intake/3600 converter it went 11.90s consistatly, dont get me wrong, a 4400+ converter and new intake would of put it in the 11.50s but i think youll need more converter and power for 10.90s 11.0s

thirdgenbum

iTrader: (17)

so let ME recap, there are guys with cam only 346 combo's running low 11's n/a, yet my 370ci motor CAN'T do it? where the hell am i going wrong here? my vig3600 flashed to 3600 behind a fairly stock 5.7L, it may be closer to 4000 behind the 6.0L...never know till i try it. the weight will go down once i can afford more lightweight stuff...this car at one point was 29xx with driver...but i added a bunch of street gear back in so i could be one of the cool "street car guys". guess the back seats will come back out, i'll have to put tubular front suspension on, and get more creative with weight loss. i'm not adverse to doing that.

this site really is full of a bunch of bullshit talkers, isn't it? can't believe i posted up on the "world's most renoun ls1 tech website" asking about cam tech for a budget built 6.0L and all i get is bullshit responses. thank you, i'll continue to use this site as i have previously...as a classifieds section only.

youguessit

Dont get pissy because you get the truth. Its the way u asked the question... What you should have said is what cam and how much other work do i need to do... Your car is fat... lose weight. What you want is possible with better heads... just match the cam to the better heads and throw them on later.

blk96406

iTrader: (18)

HAHAHAHAHAHAHA Ya beat me to it, was thinking the same thing!!!!!

Ive got pretty much the same pile of parts (motor wise), anyone wanna help me out???

thirdgenbum

iTrader: (17)

lol...the problem is not necessarily the car...the car is 3100lbs. without me...and that's with a 9", 8pt roll bar, full interior, and heavy *** lq4/4l60e combo.

let me try again. i have a car that weighs 3400lbs, it ran 12.0x's with a 5.7 and a baby camshaft. now i'm building a 6.0L. because of current financial constraints, i'm going to use the 317's but i figured i'd justify a mill to yeild better compression. i would like to go at LEAST 11.49. what camshaft selection would you guys suggest, and what else might i need to do to the car? i'd prefer making more power over taking out weight, but budget= !weight, lol.

and while i may be getting pissy, you still didn't answer any of my actual questions...just responded to my "posting method"...which vindicates my pissy-ness.

StreetSilverado

iTrader: (17)

I can see some mid 11.20's-11.50's with a good spot on tune. I'm running a 370CI motor weighing in at 3650lbs race weight. I've been 6.90's in the 1/8th all motor so I know it has ran some very high 10's NA. Just really depends on the setup you go with. Here's mine, it's a bit more of a set-up than what your going with though.

-370CI
-stock crank
-LS6 hand ported heads milled .025
-H beam rods
-Mahle flat top -2cc
-Victor Jr intake
-Accufab 4150tb
-238/246 .607/.613 110+2LSA
-1 3/4 LT's
-Gapped for a 200 shot.

thirdgenbum

iTrader: (17)

excellent, what i want to see. i was thinking of a 114 lsa so the rpm band isn't quite so peaky, and would make a broader torque curve...may make my VIG3600 work a little better with more lower-end torque.

what rods are you running? i'm thinking of getting the eagle h-beams...seem pretty well budget friendly priced ~$389 a set...

StreetSilverado

iTrader: (17)

I'm just running our local machine shops brand. So it's just a non-brand H beam rod I guess, they seem to hold up. Lots of in town guys have been running them for years

PREDATOR-Z

can you build a 6.0 to go 10s, HECK YA

But look at your initial post, you mention 219 cam and that you want a street friendly setup.

No matter what you are tied down by the stall and need to pick a cam that will fit its extention shifts, and you want 6200 rpm as well.

Then you say that a 238/246 110 LSA was the answer you are looking for!
Do you even know what you want?

That cam has 22* overlap, IVC 48 and intake bias from TDC so it will see 7K rpm easy.

The issue is the criterias you are throwing on the table does not qualify it for high 10s.

You'll need at least 440+ rwhp to make those numbers at that weight, stall combo.

thirdgenbum

iTrader: (17)

can you read? i stated my OLD combo for a baseline to tell you that the car is relatively efficient. car ran 12.02 @ 111.8mph on a 1.56 60' time...and was streetable because it had a 212/219 camshaft in a basically stock 346.

now, i also said that i wanted it to be DRIVABLE as it's a second car for when my pickup truck is down, NOT that i want to DD it. i DD'ed a 305ci genI with a 238/248 cam with a 650 double pumper and had GREAT results at the track too. i also stated that i DON'T have creature features like HVAC, cruise, etc, and that i'd be OK with something that wasn't super-mild mannered.

i did not say that a 238/246 110+2 camshaft was the answer i was looking for. i said "THAT" is what i was looking for, referencing a real post that had real world data in it that showed where he had real results.

why are you so easy to jump to conclusions? i'm NEVER said that i think a 219cam will go 10's...i said "What cam in my stock headed 370 will put me in the lower 11's, upper 10's, and uses a broad torque curve instead of peak HP to do it?"

honestly, i was thinking of something like the TV2, but maybe with a little more split in the duration, something like a 232/238 with like .590ish lift, and a 114lsa to broaden the torque curve, and make an engine that doesn't HAVE to spin hard, as i'm looking for reliability. when i say reliability, i'm not necessarily saying "get me from point a to point b everyday" but rather that no matter what, i can hop in the car and fire it up and know that i didn't kill the valve springs last weekend from a 7600rpm run.

PREDATOR-Z

Yeah, I can read, but as I suspected you do not really have a grasp on cam specs.
A 232/238 114 LSA, even advanced +4 will have a IVC of 46 and will peak 63>6400, add another 3>400 for shift points and you are now at 66>6800 shiftpoints.

If you want your cam to peak early, say 5900rpm (so you can shift at 6200) you should be looking in much earlier IVC.

And having a 3600 stall (and I know how VIGs act I drive a 3800) you'll need a cam that has fairly early trq peak as well to get maximum 60" benefit (to yield the results you seek).

Reading and understanding what it takes are 2 different things

thirdgenbum

iTrader: (17)

ok, so get me to 11.49, then i'll take away weight, and add cylinder heads when i can afford to do so to get to my 10 second goal.

i will say though that all this time, i thought i had a relatively intelligent post with decent facts in it, only to find out that you still think i'm a dumbass...which makes me wonder how i could ever be smart enough about cam specs for you to help me...of course if i was as smart as you, i probably wouldn't have asked the question.

thirdgenbum

iTrader: (17)

hypothetically, would going with a 243 head be better?

Sales2@Texas-speed

iTrader: (5)

Nice chatting with you earlier, Matt! Let me know if I can help with any parts or just advise. No harm in asking questions, even if the answer isn't exactly what you'd hoped for

thirdgenbum

iTrader: (17)

that's just it...i need to be able to ask question...and you are really willing to help me out with my questions, and i really appreciate you taking time to explain things to me without making me feel like a total idiot.

so i just need to find a killer deal on 243's...otherwise i might as well just get the trickflows...

thirdgenbum

iTrader: (17)

so i got another question...i have a set of 5.3L heads, in stock form, sitting on an engine here at the house. could i do anything to those to make them work well? (like maybe putting bigger valves in them, maybe a bowl blend)

StreetSilverado

iTrader: (17)

I would go with the 243's over the 5.3L truck heads, since your going with a 4.030 bore. If I'm not mistaken, the 5.3 are really for 3.900 bore . I've seen good power with 5.3 heads but I'm still not impressed in the performance of them. Just my opinion.

Monte4ever

iTrader: (2)

WOW!!!! Sometimes asking questions and getting answers on here is like getting all your wisdom teeth pulled - all at the same time LOL.