umair

i was wondering what you guys think would be a better choice for me...a b16 lsd trans or should i just put an lsd in my ls trans? i am leaning towards getting an lsd for my ls trans because i do more highway runs than anything. i think the longer gearing will also help me with traction.
what do you guys think would be the better choice?

thanks

94VTEC2TONE

what kinda car do you have? mods future mods?

umair

eg hatch with a gsr.. right now i am at 290whp but plan to run e85 and run 15lbs of boost(im at 9psi right now). i might build the block but i am not sure.. i just might keep it stock. my goal is 390-450whp.

SLIM NOTHING

there is a great sticky in the tranny section if it could help you. it def did me.

rev-speed

ls
a turbo car with b16 trans is burnout king........

Mugencrxsir1

I agree, Ls/Vtec with an Y1 w/ LSD and my first two gears are worthless! If I don't feather the car right I can burn straight through 3rd...

The short gears and LSD do make launching and accelerating fun in 3rd/4th...

dcmatt

iTrader: (7)

B16 tranny with boost by gear.

blackeg

you will want to punch yourself after the fact if you go with a b16 trans and 400+hp that you are trying to do a lot of highway runs. you will top out 4th at or before 120 depending on rev limit and tire size.

honestly, gsr trans with lsd is the way to go. its a nice combo of the short gears and 4.4 fd while not topping out early. additionally when you hit the track your power goals match up nicely to a 24.5" slick at the top of 4th gear.

over the last 8 or so years ive had almost every b series motor/trans combo and im currently using a 2 liter gsr motor with gsr trans and lsd. seems to be the best combo ive had. oh yea, get an egt gauge if you really want to do highway pulls or do boosting in 5th. it really helps me know how far i can push it and when i need to let out. even properly tuned motors can build too much heat when pushed for long enough. this lets you know that. good luck

CDecker0218

For 390-450whp go with a B16. My friend had a 250whp integra with a ls tranny and he fell out of boost alot. You said your at 280-290 right now and it is not far off at all. I have a b16 in my car and last year I was making 340whp and didnt spin really. This year I made 405whp on pump gas and with dr's i hooked pretty good. LS tranny's are really meant for higher whp IMO on the street. My brother, who made 503whp on c16 and was on the highway quite abit doing some 3rd gear pulls and with DR's and 503whp he dead hooked 3rd. However for the track a ls tranny will hurt you as it did him. If you have the traction, get a b16 or even a b18c1 gsr tranny. I would suggest LS if you planed on topping your car out on the highway which to me is very unsafe and stupid. My brother who has the LS loves it but needless to say just bought a b18c1 tranny as did i. It's realy up to you as everyone has there own views.

rev-speed

i call bulshit
unless that dyno ur using is super high
a 400whp civic with ls trans has a hard enuff time with traction
-and don t give me the bulshit boost by gear ****
a gt3076 with 4psi spring will creap to atlest 12psi on first gear................

CDecker0218

I am talking about from a highway roll from a 60mph with the LS tranny. First and second are useless from a dig as everyone knows. Also was on a DR tire that was warmed up too. On a cold night it blew all of 3rd off.

blackeg

there are a lot of variables at stake here in the "dead hooks 3rd" conversation.

tire psi, suspension and rear preload, tire size, boost control, turbo spool characteristics, brake boosting or just slowing ramping into boost.....


i know for a fact my car with 400hp will pretty much slam 3rd against the limiter and audibly squeal tires in 4th up to redline with the rear preload set tight. these are 225 bfg. and just flooring it at 60mph no brake boost

same everything else but with about 3/8" gap between the spring and the perch as opposed to about 1/16 in the previous scenario hooks dr's and can come pretty close to dead hooking 205 street tires

rev-speed

this is what happens with 380whp in third (gsr trans)
440 in fourth
almost lost to a 600 with mods!

http://www.youtube.com/watch?v=-kfvSpwYKoc

dcmatt

iTrader: (7)

so boost by gear is crap? was planning on using it with my build. heard more then 1 person say its helped with traction issues.

rev-speed

it works good for small turbo that won t creep.....

DA 4 Lyfe

That sucks dude.

I'm the one cdecker is talking about. BB in 3rd at 60mph S1 tranny, at 503whp 205 50 15 MT ET DR's I hook. (not on a cold night) Call it BS if ya want because I have no proof.

rev-speed

what kind of dyno did u run it on?
on our dyno this car at 560whp in 4th gear runs 10s on a bad launch and slow shift(actually stereo felt out and jam between shifter lol)

10.9@136mph(this is with 560whp)car weights in at about 2380 without driver (driver is 180lbs)

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