tkerrmd

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well it may be no secret I have blown a few gears, syncros, and now finally the ring and pinon gear.
no gross shifting mistakes just over 10 k of hard track miles including full race conditions for up to an hour at a time at 95 degree+ heat.
no regrets and in retrospect all in the know feel that it has come down to wear and tear and pretty normal and I accept that.

When my ring and pinion gear went I searched for upgrades. can"t really go to Cup or RSR R+P because although faster gearing the pinion gear is smaller and certainly in a car with 600+hp would not last. changing the gearing is a possibility but really never use first ever and second minimally so not really worth it so again no upgrade there.

Going to RWD, not sure if this is considered an "upgrade" but when going to a Guard LSD with a 50/80 lockup, getting rid of near 100 pounds, and getting the front diff and viscous coupler out I consider this a major upgrade.

With that decision I opted out of a new GT2 box as I dont like the weak LSD that it comes with.

along with the LSD I have found a solid billet case cover that is massively stronger than the stock cover this will stop any case flex, thus another upgrade.

last and best upgrade is a tranny cooler. we are plumbing a 13 inch cooler with two return lines one over the R+P with a custom sleeve that directs fluid right at the R+P gear. the second return will be over the 3+4th gears.

there will be an inline thermistat that will turn a high performance pump on at a certain fluid temp only. an inline filter also is in place.

the tranny temp will be monitored by a gauge on the dash.

special air ducting will direct air through the drive shaft tunnel for cooling, this also will hold another 1.5 quarts of fluid.

I think this is as good as this tranny can get and far superior to the GT2 unit and what I will estimate to be about half the price.

I will post pics next week as things near completion.

please feel free to add any comments or suggestions good or bad as all can be helpful.

this car will see PCA sprint and enduro racing in the fall so spare me the wow you really didnt need to do that stuff!

thanks for reading and any comments welcome.

tom

VRAlexander

Sounds like your going 'serious' with your tranny =)
I have had several issues with mine 996tt trans (3rd-4th and then 5th went out...I also had the clutch engage at several different points all by itself) and had GMG send it out for an 'open checkbook' rebuild. Ever since I got her back, she shifts like butter! I opted for the billet case cover and linkage as well and went with a 60/80 LSD. The tranny cooler sounds like a good idea....please post some photos, I would like to see the setup on the cooling system. Thanks

pedsurg

Tom: What's your current gauge count ?? : )

Jack

38D

Tom, I think you may get the most bang for your buck with the cooler. High temps kill a trans fast.

tkerrmd

pics on the way

Jack see ya at Sebring

thanks Colin.

ltc

Have you asked Mr Copans for his 2 cents?

VRAlexander

ltc... You have THE BEST avatar that I have seen in a long time =)

tkerrmd

Him and eveyone else in the country!!
as much research as possible was put into this set up, hope it works!

ltc

Are you planning on sending out your gear oil for analysis, similar to engine oil?

ltc

Thanks.
I can't recall where I found it, but it was similar to one found in the OT forum....no I can't remember the thread, probably the Random Picture thread.

My wife and kids seem to think "it's me".

tkerrmd

thought that was to diagnose a closed system that you cant see into ie the engine.

we have the tranny opened and the R+P is shot so no.

guess if I had the oil analyzed would know if it chemically failed but it was fresh tranny oil on the first day so what do ya think?? would it still help I could scrape some up if you think it would give some info

Lewis, any other thoughts the tranny goes back i this week

VRAlexander

Tom,
What gear coating(s) did you use for the transmission?

1AS

Tom, what are the gearing changes you anticipate? Wii first be longer, sixth shorter, or ??? AS

wross996tt

AS in his first post Tom said I thought he could possibly improve 3-5 as I hinted to on 6speed...but it sounds like Tom did his research....

tkerrmd

dont use first gear so no change and 5 to 6 is good for Daytona so no real change needed.

OK I missed the "gear coating" thing is there something I am missing? Hurry up tranny going in this week!!

thanks for all the comments