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prelude SH Tranny

 
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Old 02-04-2010, 03:25 PM
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prelude SH Tranny

hey guys i was messing with my friends hatch he has a GSR on his car he says its "stock" so i go for it i take him on take off and almost all the way but he always catches up to me at the end...Are the SH transmission not that good....because i know i have the torque but seems that at high rpm the tranny gives up...

would i benifit from an lsd transmision?
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Old 02-04-2010, 08:56 PM
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Re: prelude SH Tranny

ATTS unit results in a little less whp compared to base or SE ludes, also, He is much more lighter than you,( I guess we're talkin EK GSR hatch ) that's why he catches up to you @ high speed.
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Old 02-04-2010, 09:28 PM
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Re: prelude SH Tranny

He has a 93 hatch but I take him all the time but at the end he catches up....so I was reading that the sh transmission made a difference I just wanted to know from the experts what tranny can I get for my type s any one?
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Old 02-04-2010, 11:55 PM
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Re: prelude SH Tranny

Quote:
Originally Posted by chuckbret View Post
ATTS unit results in a little less whp compared to base or SE ludes, also, He is much more lighter than you,( I guess we're talkin EK GSR hatch ) that's why he catches up to you @ high speed.
i would love to see actual proof the atts units decreases horsepower
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Old 02-05-2010, 01:30 AM
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Re: prelude SH Tranny

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Originally Posted by UPSluder View Post
i would love to see actual proof the atts units decreases horsepower
as much as i dont normally like the atts, rather just have a normal lsd, i'd have to agree on this one. i'd love to proof that it decreases horsepower. lol i could maybe see cuz its heavier then the base model tranny, but a lose in hp.. doubt it.
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Old 02-05-2010, 02:26 AM
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Re: prelude SH Tranny

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Originally Posted by kaka_05 View Post
hey guys i was messing with my friends hatch he has a GSR on his car he says its "stock" so i go for it i take him on take off and almost all the way but he always catches up to me at the end...Are the SH transmission not that good....because i know i have the torque but seems that at high rpm the tranny gives up...

would i benifit from an lsd transmision?
DUDE!!! If he has a gsr on his car he better watch out! Motors shouldnt just be laying on cars! Its not good for the roof!

But yeah. Anywayz, im sure atts doesnt decrease hp. It just makes the sh weigh a tiny bit more than base models. And as said before. He's taking u cos his car is much lighter than yours.
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Old 02-05-2010, 02:54 AM
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Re: prelude SH Tranny

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DUDE!!! If he has a gsr on his car he better watch out! Motors shouldnt just be laying on cars! Its not good for the roof!

But yeah. Anywayz, im sure atts doesnt decrease hp. It just makes the sh weigh a tiny bit more than base models. And as said before. He's taking u cos his car is much lighter than yours.

yea i guess the weight does make a big difference....oh well its just for fun, but is the lsd really the best way to go?...
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Old 02-05-2010, 03:09 AM
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Re: prelude SH Tranny

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Originally Posted by kaka_05 View Post
yea i guess the weight does make a big difference....oh well its just for fun, but is the lsd really the best way to go?...
ya having lsd is the ****! but for you do it, you'd have to get a base tranny.. or a jdm/euro tranny that has a stock lsd already in it
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Old 02-05-2010, 11:18 AM
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Re: prelude SH Tranny

ATTS doesn't decrease HP, it decreases Whp, I've read it on a technical data sheet somewhere around the web, I'll try to find it and post on here later on

alright here it is

Quote:
Originally Posted by honda-tech members
both the base model and the SH have about 200hp to the flywheel. Although when dyno'd and powered measured to the wheels the base model puts out a couple of more horses because the SH looses a bit more power due to the ATTS system robbing some ponies.


The SH prelude ATTS problem with high horsepower is that it shuts off in the range of 220-250 horsepower and becomes useless. The base and the SH have the same engine albeit the SH block is a little different with the oil filter being in a different location than the base prelude to accomodate ATTS.


if you want a drag car, get the base.

if you want a car for auto-xing, track, road courses...etc, get the SH.

you'll find parts easier for the base, for the SH you'll have to hunt.

if you want to go turbo with an SH, you can always disconnect the ATTS unit.

LSD not compatible with ATTS.

ATTS: Active Torque Transfer System.
It basically sends more power to the outside wheel when cornering making it spin 15% faster than the inside wheel.
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Last edited by chuckbret; 02-05-2010 at 11:20 AM.
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Old 02-05-2010, 12:40 PM
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Re: prelude SH Tranny

uh atts does not make the engine slower or run any abnormal way then a base.

its the WEIGHT that gets to us 80lbs + is a big difference
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Old 02-05-2010, 01:47 PM
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Re: prelude SH Tranny

really ? It's only the weight of the ATTS unit that makes it slower than others ?

jeeez I always thought it was the Unit itself ( mechanically ) that was pullin less whp

thanks for pointing that out
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Old 02-06-2010, 06:03 PM
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Re: prelude SH Tranny

ok well my atts doesnt work because i have the H22a the type s motor currently on the usdm sh tranny so my atts light is on do i need the jdm module in order for my atts to work??? at least put it that atts to work
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Old 02-07-2010, 03:46 AM
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Re: prelude SH Tranny

I really enjoy my LSD. I feel it drives better then the ATTS.
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Old 02-07-2010, 01:58 PM
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Re: prelude SH Tranny

im sure this has been covered but, while we're discussing it, why mess with ATTS if an LSD does basically the same job? or better yet what's the difference, job wise?
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Old 02-07-2010, 09:29 PM
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Re: prelude SH Tranny

ATTS is computer controlled (Active) and as I understand it is only active in corners. A bunch of sensors (wheels, yaw, steering, etc.) are used by the computer so it can calculate how much Torque to Transfer to each wheel. Can't remember but I think is capable of sending 80+% to one wheel. A regular LSD is mechanical. Think 3rd gen 4WS vs. 4th/5th gen 4WS.

As for why Honda messed with it. They often tried out new things on the Prelude and I guess they wouldn't have their SH AWD now if they didn't.
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