ss2002

Hi,
my car Lumina 2002 SS

I want to change my 4l60e to th350 or th400 ...
what is the best choice?

I driver my car daily go to my collage ...
this is the parts on my car :
LS1 5.7 Stock intake LS6
AFR Mongoose 205cc FULLY CNC 66cc Chambers COMPLETE|G5X3-114|Stainless Works 1 3/4 Off Road|Nitto 555 245-45R17|LS1 Breather|SLP Double Roller Timing Set|NGK TR-55 Spark Plugs|SLP Heavy Duty Oil Pump|ASP Pulley Set|160* T-Stat|MSD LS1 8.5mm Wires|Vigilante Converter 3200 Stall Multi-Discks|SLP GTO Linelock|TCI Automotive SFI Approved LS1 Flexplate|Pro-Built 4L60E Rebuild Kit Pro Street w/vacuum modulator
3.73 with LSD | 3'' Dual with X-Pipe catback Surefloexhaust



my ET in 1/4 mile is 12.345
ELAPSED TIME 12.345
VEHICLE SPEED 112.39 MPH - 180.87 km
60 FOOT ET 1.877
101 METER ET 5.136
201 METER ET 7.901
305 METER ET 10.312
and in Dynojet make 406.82 hp / 373.65 torque (4l60e)unloked Vig3200

my car weight around 3647

What it the time in 1/4 mile , Hp and torque I will take with th350 and with th400 ?


I Will put 150 HP Nitrous I will be in 550 rear HP

Please help me what better for my car ? 350 or 400 ? and why
Note: i will use TCI Low Gear Planetary Sets First Gear Ratio: 2.75 Second Gear Ratio: 1.57
...

1dirtyZ

iTrader: (1)

like i told you ss, going with a 400 buys you peace of mind . sure its a bit heavier and takes a bit more hp to turn, but with the 1st and 2nd gears changed to that ratio along with the torque converter the car will definatly move. you will have the gearing of a 350 and the toughness of a 400.

what do you guys think?

Tom@SpeedInc

iTrader: (5)

Well i've seen a full weight GTO w/ cage go 10.16 running an FLT level 5 4L65E

I would say have FLT build you a level 4 or 5 until you get in the 9s

http://www.youtube.com/watch?v=uSkYyw4_pGk

happy eid

Circle-D

iTrader: (21)

Why are you wanting to change?? You said it was your DD. You will loose OD and lock up killing your MPG. You can build a 4L60E to hold your power levels.

Chris

ss2002

I rebuild my 4l60e 6 times !! i need a trans dont need rebuild every 6 months
and dont forget i will put 150 nos = 550hp

Circle-D

iTrader: (21)

I think a well built 4L60E will handle your power, but if I had to choose between the 350 or 400, I would go 400. The 350's basically the same as a 4l60E strength wise.

Tom@SpeedInc

iTrader: (5)

Just have the 4L60E built right once

we have a FLT LVL 4 in a 408ci GTO that ran 10.3 on spray, hasn't backed down one bit. The car I mentioned last post has near 20 passes on its setup.

And has been driven extensively.

Circle D converters work well too

TurboAv

iTrader: (6)

Look where he is from. I bet he doesn't worry about gas mileage. I know I wouldn't, lol.

Edit: Oh yeah, my vote goes for a TH400 with a billet drum that's 4 1/2 pounds less rotating weight.

performabuilt

iTrader: (25)

The lumina LS1 is a cool car over there I wish we had them here

ss2002

up up ..........

Houston999

iTrader: (3)

I would say sell that fat car and get a camaro or a 6ranz am, same engine and a th400 with low gear set. if you want the same car get a th400 or a 4l80 which will cost you some $$.

good luck Hani And kol am wo enta bekher

ss2002

What is the best stall to use it DD and in 1/4 mile with th400 and my parts ?

wajouba

iTrader: (1)

what did you end up doing? cause I have a 240sx with an 4l60e which I want to throw in the trash... and I need to swap for a th400, how much do they cost in jeddah hani? and how hard is the swap?

Thanks