What would happen If you put a cam on your stock tranny with no stall or anything. Example G5X-3 cam. How bad would it surge, and would the stock tranny be able to hold the power?

 

I would do the stall first. I would expect to see bigger gains out of the stall alone than the cam alone. Together, your gains would be huge though.

The trans has nothing to do with aftermarket cam related surging/idle & starting issues. That will have to be fought with custom tuning and/or TB modifications to be improved/resolved.

How long the trans would hold up depends on TONS of factors. Heat, useage/driving habits, maintainence pratices, precautions taken (deep pan, extra cooler, etc.), HP & TQ of your motor, and weight of your car.

 

well the car stock put down 328rwhp and 343tq, now I have long tubes, ported TB, ported manifold ls6 (car is a 2002) plugs, wires, cutout. so I guess after all those mods i hope to see like 345-350rwhp and 365rwtq with a tune. so with that big *** cam, you think i would hit over 400?

I do not drive the car hard on the street, only when i race it at the track. I do get on it sometime when im out and about when I run into friends and other people just to be a lil stupid. I keep really good condition of my car.

so what do u all think, good buy or not, I do not want a stall in my car yet, cause I love all the streetability I have right now, who knows maybe a 2500 stall or something really small they have out there I would consider. what do you all think?

 

I think if you want to do the best at the track, living with the stall isn't that bad. I cut 1 sec off 1/8 mile times with stall and gears only. What I am understanding about the tranny, heads/cam/spray = smoked tranny.

 

Driveability with torque converters aren't that big of a deal. I actually like it alot more cuz of the looseness compared with the stock converter. The car won't roll forward if you have your foot off the brake which i like. I would definitely go with a converter before the cam. The driveability all depends on what gears you have and what stall speed and str you are wanting to go with.

 

I would keep my stock 3.23's. what do u mean by what stall speed? and str? u mean what size of a stall?

 

Stall Speed and STR are two key components to torque converters....

Stall Speed is how high it's supposed to flash when you goose it from a dead stop....

STR is the Instantaneous torque multiplication factor ... higher STR = need bigger tires to keep them planted

example ... 2.5 STR on a 350rwtq car would yield the equivalent of 875rwtq (assuming you left at peak torque) at launch (Instantaneous torque) ... however after launch you very quickly return to pure motor power ... (It's basically a measurement of how fast you can get off the line assuming you have tires that will hold)


And as others have stated... get a torque converter before you get that big of a cam.... G5X3 is a HUGE cam.... you'll most likely loose low end (with a stock converter it will hurt you) but gain alot of top end ... as far as streetability is concerned you'll prolly be more streetable w/a medium converter (vig3200 or so) than w/that cam...

Since you're saying you don't want to do a torque converter because you don't want to give up streetability..... have you ever driven a convertered LS1 ? I don't know where the myth about cars with Torque Converters being unstreetable came from... but it's BS... and if you have driven a convertered car... and think that it's not very streetable... you'll be in for a world of hurt when you put that cam in (not to mention valvetrain maintenance)


What times do you run now as is? having 400hp is great... but if you run 12.999 it's just funny... you'll get more bang for the buck outta the torque converter ... despite the fact it may hurt your rwhp numbers a little (due to lower efficiency) ... but i guess you have to decide... would you rather have a fast car or a dyno queen

 

I agree 100%.

 

hey thanks alot man that answere all my questions I actually talked to my buddy the other night about all this and Im doing exactly like you mentioned Im getting a vig3200 like u happend to mention.

Driving a converterd LS1 on the street I never have before I moved my buddys car and he has a 4k stall and it was reallllllllly wierd. But yea I decided it is a smart move to do. I completey understand now thanks alot for all the imput and for showing me whats up.

 

Good decesion.

And don't worry about that weird feeling you got driving his car, you get used to it REAL quick. Only took me about 100 miles to be used to my stall. That was over 3 years ago, and now driving an LS1 with the stock stall is what feels weird!

 

hahahhaa thanks alot man, Im sure I will get use to it fast like u said. Im excited.