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Joined: Dec 2003
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TheSaint
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TheSaint
2001 White Toyota Celica
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2001 Toyota Celica

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Posts: 38
Norfolk,VA
Apr 10, 8:54pm - #150939 
How Much can GTS auto handle?

I have a gts 4 speed auto w/ m mode deal, i have put TRD headers Injen Intake ordered my dc headers and was wondering how much horsepower my transmission can hold before i need to upgrade it. does anybody have any clue.and no krackin on the auto

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Speed4TheNeed
Caleb
Speed4TheNeed

Caleb
2000 Toyota Celica

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New Orleans, LA
Apr 10, 10:30pm - #150940 
it's really a matter of how fast that horsepower is applied, not necessarily the total amount.

you can have all the horses/torque you want, but your tranny can only spin so fast before it starts redlining (i have a manual gts and redline is 7800rpms)...and obviously driving in the redline for a relatively long time (over 5 seconds) can damage your tranny if you do it constantly enough.

as a rule of thumb, you should be able to add 100 more whp (wheel horsepower) gradually without needing a new tranny--but you still will only be able to go about 170 mph before you hit redline. (thats what it is in a 6spd anyway...4 spd i don't know how big the 4th gear is).

adding horsepower/torque really isnt meant to add top-end speed, it's meant to accelerate faster. thats the limitation of your tranny.

anyway, adding bolt-ons will get you NOWHERE near 100 whp...you can add exhaust, Intake, header, Turbo, nos...whatever..and your still only looking at about 50-60 whp gain...all of which your stock tranny can handle easily (although replacing your clutch with a more aggressive one is recommeneded--the stock clutch is rather weak. if you plan on adding a significant amoutn of horsepower/torque...a new clutch/flywheel should be at the top of your list thumbsup

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v3n0m
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v3n0m

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2001 Toyota Celica GT

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St. George, UT
Apr 10, 10:54pm - #150941 
why do you have two headers?

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slidr
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slidr

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2000 Toyota Celica

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Saint Louis, MO
Apr 10, 11:02pm - #150942 
Originally Posted by v3n0m
why do you have two headers?
Heheh.
He doesn't, I guess he meant a header.

Anyways, your tranny can easily hold those bolt-ons.


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TheSaint
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TheSaint
2001 White Toyota Celica
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2001 Toyota Celica

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Norfolk,VA
Apr 10, 11:19pm - #150943 
i meant TRD exhaust

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nebraskaGTS
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nebraskaGTS

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2000 Toyota Celica

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Nebraska
Apr 10, 11:28pm - #150944 
Quote:

anyway, adding bolt-ons will get you NOWHERE near 100 whp...you can add exhaust, Intake, header, Turbo, nos...whatever..and your still only looking at about 50-60 whp gain..:


sad isn't it? cry

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Erick
Bread Fishing..
Erick

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2001 Toyota Celica GT

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Bay Area, CA
Apr 11, 12:55am - #150945 
Quote:

anyway, adding bolt-ons will get you NOWHERE near 100 whp...you can add exhaust, Intake, header, Turbo, nos...whatever..and your still only looking at about 50-60 whp gain..:


sad isn't it? cry [/quote]agreed cry


LNK
"you only need something when you know it exists..then it becomes a want"
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spaztikid
dikitzaps
spaztikid
dikitzaps
1974 Toyota Celica

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LA
Apr 11, 2:15am - #150946 
there is really nothing you can do to upgrade your auto tranny...

it will be fine with IHE.

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Speed4TheNeed
Caleb
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Caleb
2000 Toyota Celica

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New Orleans, LA
Apr 11, 4:15am - #150947 
Originally Posted by spaztikid
there is really nothing you can do to upgrade your auto tranny...

it will be fine with IHE.


even if you added a Turbo/supercharger it would still handle the extra power easily (although as i already said a new clutch/flywheel would do him good)


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Apr 11, 5:46am - #150948 
first upgrade to a clutch and then go from there...

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TheSaint
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TheSaint
2001 White Toyota Celica
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2001 Toyota Celica

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Norfolk,VA
Apr 11, 6:19am - #150949 
sure i can upgrade it i've looked into it quite a bit here is a place that specializes in auto transmissions. http://www.levelten.com

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VSGTS14
05 WRB
VSGTS14

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2005 Subaru WRX STi

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Milford, NJ
Apr 11, 10:41am - #150950 
why do you have TRD headers and bought DC headers?


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spaztikid
dikitzaps
spaztikid
dikitzaps
1974 Toyota Celica

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LA
Apr 11, 10:50am - #150951 
Originally Posted by VSGTS14
why do you have TRD headers and bought DC headers?


downgrading laughsilly rofl rofl

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NorwayGT
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NorwayGT

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2004 Dodge SRT4

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Posts: 2,269
Seattle, WA
Apr 11, 10:53am - #150952 
Originally Posted by spaztikid
Originally Posted by VSGTS14
why do you have TRD headers and bought DC headers?


downgrading laughsilly rofl rofl

a cuple posts up he said that he ment TRD exhaust, not TRD header


was....5speed with i/h/e
15.41 @ 89.30mph 2.282 60'

is....04 srt4 stock
13.936 100.15mph 2.177 60'
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