300 hp and tranny question

by **jetbtkng** » Sat Jan 17, 2009 2:24 pm

im doing some more upgrades on my solara and the mechanic told me 300 hp will kill my auto tranny i just want to know your guys opinion on this,

by **ThatVietGuy** » Sat Jan 17, 2009 2:41 pm

http://www.solaraguy.com/viewtopic.php? ... ansmission

Long story short: the auto tranny should be able to hold quite a bit of HP (300+) before things start going bad

by **jetbtkng** » Sat Jan 17, 2009 2:50 pm

i was thinking it should its a toyota for chis sakes, although im having them change rpm to 7000 instead of the 6200 stock setting, auto needs more revs between the gears....

by **jetbtkng** » Sat Jan 17, 2009 2:54 pm

also do they make a shift kit for the solara 4 speed auto..........

by **ThatVietGuy** » Sat Jan 17, 2009 3:30 pm

No

And if you want to keep posting that picture, just put it in your signature.

by **jetbtkng** » Sat Jan 17, 2009 3:35 pm

thanks for the info, and pic info as well.

by **jetbtkng** » Sat Jan 17, 2009 4:26 pm

ThatVietGuy wrote:No

And if you want to keep posting that picture, just put it in your signature.

your avatar pic and mine could pass as twins. :drinking:

by **Dawgz** » Sat Jan 17, 2009 4:40 pm

The trans should be able to hold anywhere from 220 - 250 whp....if ur lookin to put more power u can always get the valve body upgrade...but then agian, if ur gonna spend that kind of money, might as well do a manual swap!?

http://www.importperformancetrans.com/toyotaauto.shtml

by **Mr_Chunkz** » Sun Jan 18, 2009 2:10 am

my trans is giving up
ive got 6 psi and instant boost mod
sometimes my trans refuses to shift

But i drive my car VERY hard.

by **STYLSH** » Sun Jan 18, 2009 6:20 am

My transmission slips very slightly when hot in the first to second gear change now (when not babying the change).

That is with only 4psi and the ebc. But for some reason i still get some boost in first with everything wired up properly.

by **trd4life** » Sun Jan 18, 2009 11:25 am

synthetic ATF and a huge trans cooler will do wonders!

by **JavaJoe_2** » Sun Jan 18, 2009 11:50 am

Dawgz wrote:if ur gonna spend that kind of money, might as well do a manual swap!?

http://www.importperformancetrans.com/toyotaauto.shtml

Scroll down on that link and you will find a "valve body" for $619 easy enough to install yourself. Or have a trans shop do it for probably around $200. Far less than a manual swap. Now a fully built trans is more of a comparison. Tony the Tiger has one of their built transmissions, but he has significantly more than 300hp. Along with the aforementioned cooler and synthetic trans fluid, I think you would be set. I have an extra trans from a '99 Solara that I was going to do the same thing to. But, I bought something else.

by **Dawgz** » Sun Jan 18, 2009 1:10 pm

Well, this is true, but u have to send them UR valve body and then they modify it and then send it back to u. I live close by so i would just have to drive there....

by **Eye8Pussies** » Sun Jan 18, 2009 5:06 pm

the valve body upgrade will only help the tranny last a bit longer- by not holding the shifts for the amount of time that the stock design would hold the shifts for, a valve body upgrade helps deal with the extra heat that is produced during shifting- but it does not deal with that (yet again) weak 2nd gear sprag that seems to eventually snap with higher power applications

so in the end, for a daily driver that gets beat on and you want oem reliability on- either get a built auto tranny or do a 5speed swap

by **jetbtkng** » Mon Jan 19, 2009 11:00 pm

thanks all for the info, when it breaks the link javo joe gave me just means another upgrade, again thanks and i dig this site :drinking:

300 hp and tranny question

300 hp and tranny question

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