V6 Bird

iTrader: (15)

I don't know who he is talking about directly. And you don't know either. You are only basing this over of what you have interpretted it as and how I have responded to it. Before this gets out of hand, put a handle on it and let Scott clarify himself if he so wishes.

Stang's Bane

iTrader: (22)

Agreed, it was just my interpretation. It was just an observation.

WizeAss

iTrader: (5)

408 10.75-11.25 238° 0.605" 240° 0.609" 113°+3° Xer 485
408 10.75-11.25 242° 0.610" 244° 0.612" 113°+3° Xer 505
408 11.00-11.50 246° 0.614" 248° 0.615" 113°+3° Xer 525

427 10.75-11.25 238° 0.605" 240° 0.609" 113°+3° Xer 510
427 10.75-11.25 242° 0.610" 244° 0.612" 113°+3° Xer 530
427 11.00-11.50 246° 0.614" 248° 0.615" 113°+3° Xer 550

445 10.75-11.25 238° 0.609" 244° 0.612" 113°+3° Xer 535
445 10.75-11.25 242° 0.612" 248° 0.615" 113°+3° Xer 555
445 11.00-11.50 246° 0.615" 252° 0.595" 113°+3° Xer 575

WizeAss

iTrader: (5)

hmmmmm. I wonder about those cams and a L92 head setup??

I dont like the numbers a certain 403 put down with a 244/250 - .596/.596 - 112lsa cam.......... wonder what was wrong with it other then a bad LSA selection and lack of lift? The duration looked good?

would a 244/248 on a 113+3 work........... ?




back on topic........... at what rpm/speed does the car spin/not spin the tires???

WizeAss

iTrader: (5)

he was banned from LS2.... there, it has been clarified.

V6 Bird

iTrader: (15)

Its not necessarily the cam specs itself as it is the shape of the lobe. Their is a lobe shape out there to fit these heads and flow numbers they produce to make great power. No one has found it yet that is willing to advertise it openly. With that said, none of what you chose would optimize your combo. It will put you in the middle of road which is why no one makes respectable power with there 400+ motors. Its all run of the mill lobes and such. You can refer back to that 372 inch motor that I posted results of.

V6 Bird

iTrader: (15)

For good reasoning...But that site is also drama more then technical.

Patrick G

iTrader: (14)

With the mild duration numbers you're talking about and the moderate rpm range you're going to be running, a 113LSA cam will not be ideal IMO. A 408 is more intake valve restricted than a 346 (even with the larger L92 valves) and the best running street/strip 346s are running 110-111LSA cams (we're talking area under the curve). With a sheet metal intake and lots more rpm, a 113LSA might make sense, but with an L76 intake, I think you're going to be underwhelmed with that wide of an LSA.

Ling_650vette

iTrader: (1)

Well, would you suggest sticking with something thats on a 110 based LSA then Patrick for an engine of this size or would it depend on ultimately what the owners goals are as for driveability, overall power, nitrous etc?

Patrick G

iTrader: (14)

Totally depends on the overall mods and goals of the owner, but for a lower rpm application (3000-7000), the 110LSA coupled with appropriate duration will typically make more average power when running the L76 intake. Look at the engines from the Engine Masters competitions from this past year and you will see some interesting similarities: Moderate static compression, Pump gas, 2500-6500 rpm range, square bore/stroke relationship, super high flowing cylinder heads, cams running in the 108-110LSA range (although the winner ran a 106LSA cam). Granted, Pro Stock motors run 116-120LSA, but we're talking pump gas motors using factory intakes here.

WizeAss

iTrader: (5)

who do I make the 25.00 payment out to... it is worth it for your advice!!!!!

Brandon Boomhauer

iTrader: (10)

and how many people have told you to stop with the horribly wide lsa/split nonsense? glad patrick got through to you.

oh, and there are other lobes out there besides the XE-R... though mine did make powa.

Brandon Boomhauer

iTrader: (10)

I could take the car out (same rear gear as you) and get completely crazy at 80mph. Hell you could be crusing around 65-70ish, kick it in 3rd, roll into it a little and just hang one side out if you wanted, shift into 4th and still 'walk it' sideways in/around 110+ish...

Brandon Boomhauer

iTrader: (10)

pretty much. on the graph it was pretty flat from 5600-6200ish.

it peaked a little under 6k if i remember correctly.

It ran surprisingly good, thanks to a great builder, and the best tuner in the DFW area(imo). (something else you should pick up on)

ls6 intake, pacesetters, lanes duals w/ twisters/ stock 241 heads with manley dual springs. (powershift should check them, if he hasn't yet they are bound to be weak now and need to be replaced) etc.

I planned on heads, but flipflopped alot and decided to sell. With heads I think it could have hit 500 with the ls6/pacesetter setup. But, i believe powershift is going to do something with it now, hopefully it will turn out ok.

WizeAss

iTrader: (5)

Greg Good is working on a set of heads, Koenig is setting up the block. I just dont want to make the mistake of putting the wrong cam in the car. After last nights 403 L92 put down a measely 466 thru stock L92 heads.... I am even more worried about cam selection.

Just need to be able to cruise around town. Mostly for the track. Not a daily driver. Car will have good lifters from SPDC, Patriot spring kit, 1 3/4 headers for now, L76 car intake with Fast 90mmTB. Heads should flow great or better then great. I trust the head porter!

Brandon Boomhauer

iTrader: (10)

let erik/greg pick the cam then.

V6 Bird

iTrader: (15)

BUt then there is a problem with Erik wanting to put that same cam in the motor that you had. Thats not what we are looking for and im not sure Mike has really stressed that. Some real though needs to be put into this cam. If Erik isnt confident in cam selection let someone else do it... I know he is an honest dude so he will do something for either situation.

WizeAss

iTrader: (5)

Bingo.... I have not really discussed this with anyone. Still waiting on motor and heads to be finished by the end of the month.

So all feedback and input is appreciated. I am confident he knows how to make power. I have not discussed this with anyone.

I dont mind sending Patrick G 25.00 bucks for his input..... well worth it. Heck, I respect the guy even more after finding out what he does for a living. I am in the advertising business as well...... more directional vs creative!

I am not saying that Billy or Robert at TRT is not capable of spec'ing the cam either, I just think that with the fact these heads are so different a normal 408 cam might need to be seriously thought out before put in the motor.

I am no expert. I just think it might be wise to get everyones feedback and opinions.

WizeAss

iTrader: (5)

no way??? my 515 nitrous car was never juiced hard between gears....... It didnt spin the wheels except for 2nd gear punches on the street NA with 405 to the tires. I granny shifted it 95% of the time on the bottle and the other 5% was easing off the clutch more aggressively.

SSilverSSurfer

iTrader: (8)

theres a certain 408 that didnt even break 500hp through a 6speed and 12bolt. he has GG heads(340cfm) and FAST 90, with 1 3/4 headers, never figured out why that car did sit on 500+ at least.
i think he has the same cam that you were talking about 24x/24x etc.
good luck with your build