i dont understand how a th400 would ruin this car
My new 5.5 DOHC is in!
- Thread starter Blown02
- Start date
final drive ratio of a TH400 is HORRID for a car like ours. Anything that has a high powerband is going to run like complete shit with it. Mainly people have good results with them is they are running smaller turbos which put them in the spot they want to be with a th400. with my 4r70w i have a steeper final drive and i can utilize my powerband better which is why im making over 1200rw with a 4R is its more suited for my setup. :beer:
correct, anything under 4500 in my car it was slow as shit, as soon as you hit 5000 the car would instantly redline and practically lift the front of the car off the ground! For a street car this would bother me as its too late in the powerband, but since its for minimal street use it doesnt bother me, it will be a complete ANIMAL at the track. :rockon:
read both posts above broskii :beer:
In my opinion, you will see the greatest benefit by switching to an automatic.
Whatever flavor you choose will be rewarding (Turbo 400 or 4R70W).
If you want overdrive the 4R70 gets the nod.
If not, then get the 400.
I have driven cars that had twins and a stick and twins with an auto.
The difference is unbelieveable.
The auto combo spools much better and decreases lag....period.
I am in the process of converting my Saleen over to an auto (4R70) for the same reason (well that and breaking Viper-spec T56 parts like toothpicks).
Don't change your turbos!
Ryan
Whatever flavor you choose will be rewarding (Turbo 400 or 4R70W).
If you want overdrive the 4R70 gets the nod.
If not, then get the 400.
I have driven cars that had twins and a stick and twins with an auto.
The difference is unbelieveable.
The auto combo spools much better and decreases lag....period.
I am in the process of converting my Saleen over to an auto (4R70) for the same reason (well that and breaking Viper-spec T56 parts like toothpicks).
Don't change your turbos!
Ryan
Dude, your car is going to fly with an auto!
Im getting the feeling that I need smaller turbos and a th400. this car might see the track a couple times a year but 90% of the time(only weekends) itll be on the street...
Now I need to decide on turbos.. ahh where to begin! I want quick spool and high hp! I loved how my twin 57s felt with the 281..
Now I need to decide on turbos.. ahh where to begin! I want quick spool and high hp! I loved how my twin 57s felt with the 281..
yea you dont really need anything bigger than 61s unless your going to rev the shit out of the car, transbrake it at 6K rpms etc. Id go with some nice 61mm turbos. :beer:
Id still take a 4R70w over a th400 anyday of the week.
anyone wanna trade turbos 
Or transmissions? lol
anyone wanna trade turbos
I'd swap one thing at a time first and do the trans and see how you like it. You can do the turbos after but you won't know if you'd like the ones you have now with an auto if you never try em.
buddy james has twin 67's on his car its a 302ci motor and a manual and his car is fast...
anyone wanna trade turbos
Just enjoy the damn car for a little bit! jeez! :lol1:
ya, but id have to retune every time
if i change the turbos that means retune.. same with the auto..
if i change the turbos that means retune.. same with the auto..
im sure this car is fast.. but no where near as fast as it should be.. im afraid of gettnig spanked by a car with half the hp lol.
i dunno man, this thing doesnt spool really till 5k rpms
lol, i am.
but to be honest its more like a n/a 5.4 for the most part
adding a shot of juice in the lower RPM's would be better
I hate to add n02 to the combo.
[nomedia="http://www.youtube.com/watch?v=61qefMaicxg"]MOV04930 - YouTube[/nomedia]
nice! what setup is that?
lol, i am.
Austin i would seriously consider getting a Nasty 4R70w. itll drop your spooltime easily by 1000RPM and if you get a forward facing sullivan upper it would make spooltime even better. I am installing my sullivan now and should be dynoing it again in a week, so i will let you know what my spooltime is then :beer:
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