Houston

Hey guys... are performance transmission parts really worth it on an 05' A/T TL with no plans for adding turbo or super chargers? My car is in the shop as we speak and I have the option of upgrading, but I'm not sure if it's worth the extra cash. I might never charge the TL, but with all the stress I put on the tranny, it might be a good idea... TL has 168k miles on it.

Anyways, they're charging me 2700 for all OEM parts including a new coverter or 3800 to upgrade most components including a high stall converter. There's also a third option for 3200, but I was on the phone, so I don't remember much. I'm going to the shop in the morning and I'll have a list of all the components that thay'll be changing for each option. I'll post in the morning...

libert69

iTrader: (7)

I have a 3000 stall converter for sale if u want to save some money. 400$

Houston

^^ Rebuilt?

libert69

iTrader: (7)

bought it used and sent it to import performance transmission in new Jersey for the restall

http://www.importperformancetrans.co...ter.-1732.html

McKnife

libert69,

Any other mods to your stock tranny to get that much HP to the ground?

I hate cars

I don't want to speak for Bert but I don't think he visits much anymore since the car is gone.

If I remember right he was around 400whp, 400wtq with the auto. Only mods at the time were new pressure switches and straight Type F fluid. These two things are the real key. This fluid alone can increase the dynamic holding power of the clutches by 50% and the static holding power by 100%. I'm honestly not sure if he put more than a few miles on it with the built engine and the hp level in his sig. He pulled the engine to do forged internals and some performance mods and when he got it going again around the 500whp level, the auto did not hold up and he converted to a manual.

The current problem with the auto is not parts breakage, it's clutch slippage. That's why the Type F fluid allowed it to hold up pretty well at 400whp.

Richie v6

I was working with a company on getting custom frictions plates made earlier this year, I need to get back on that. As far as I know there are no upgrade parts on the market available for BDGA trans. They might just be selling you a BS upgrade.

AccordFlex

iTrader: (1)

I know a lot of us 6MT guys would love an option for performance transmissions. It would be a huge market considering how big the J series has gotten not only in the TL, but the Accords, and other swaps in civics, integras etc.

NvrDwn

It would be awesome if we could get a higher gear ratio. 3.73 or 4.10

I hate cars

The 5AT uses a 4.428 final drive already so its pretty low geared, at least until you're in the two overdrive gears.

Scottwax

Just going from Honda Z1 ATF to Honda DW1 ATF really firmed up my full throttle shifts (while smoothing out part throttle...win win!), enough I get a chirp on the 1-2 full throttle upshifts now. Really fast and firm shift, no more lag. Whatever you can do to reduce slippage during shifts will enable the transmission to withstand more power, at least up the limits of the clutch packs and other internal parts.

I know Level 10 does performance builds of import automatics but I've heard pretty mixed reviews of their work, hard to know which side is more credible.

Increased stall speed through a looser converter is a definite upgrade assuming you can still hook up. And you would need an external transmission cooler to handle the extra heat generated by a looser converter. Coming from a Chevelle and Cutlass background, I know first hand how much increased stall speed that matches your engine mods can improve off the line performance.

I hate cars

The nice thing about the high stall converter is part throttle shifts become less noticeable. Back when I had a 3,500 stall converter, shifts were unnoticeable when driving normally. My converter took a dump and I had to go back to my stock 2,400rpm stall converter for a while and shifts were brutal, chirping the tires at less than 1/4 pedal.

The problem with the Honda 5at is it's different than any automatic on the planet. Very few people can build them correctly. It looks more like a manual trasmission half ass adapted for automatic use than a traditional auto.

mzilvar

iTrader: (3)

About the only mods I've seen anyone do to the auto trans are:

- External trans fluid cooler
- Magnefine filters
- Running Redline Racing ATF
- Higher stall Torque Converter

There is another option to help cooling the fluid but I haven't read anything about anyone having it installed, the TransGo kit that changes some of the springs, etc to help with cooling here:

http://transgoonline.com/products.ph...dcountview=Yes

Says you have to have the trans out to properly install it, didn't really look much into it to see if it may be feasible to do with it in the car though.

Scottwax

Noticed the same when I went from a 2800 stall to a 4000 stall (was running a 292 Magnum Comp Cam at the time, almost no power under 3500!), at part throttle the shifts softened up noticeably.

They can't build the Honda 4ATs either, Found out that the hard way. 18 months of problems, returns, arguments with shop owner, etc over my rebuild transmission in the '90 Accord I had. Finally tossed in a low mileage used one that cost 1/3rd of what the rebuild was and didn't have a single problem after that.