402stokerc6

I'm going to be supercharging my 2006 z51 c6 and curious to how it's gonna be .. I have 402 stroker now and I shift so quick being the z51 . When I race my buddy's cammed z . I shift twice before his once.. Any thoughts in maybe swapping to z06 tranny for longer gears with the power I'm going to make? Any input would be appreciated. Thanks

Tuomas FIN

I did, turned factory Z51 tranny to RPM 1-4th Z06 and 5-6th ZR1 gear ratios. Truly better, highly recommend!!

getburnt

I had a Z51 tr6060 on my Maggie Vette at 630whp and I played hell trying to shift fast enough to keep up with the low end tq that blower makes! I am swapping to a 4l65 now.

Still_Slow

Did you stay T56 or did they swap it to a TR6060?

Unreal

I'm selling my z06 tranny in a month once I swap my built unit in, that being said I think the spline count is different so you would need a z06 rear end for the 30 spline output shaft.

Tuomas FIN

To TR6060 and RPM quaife diff

402stokerc6

Thanks . Deff something to keep in mind too do.. I'll have to see how it is when I supercharge . Thanks again!

turbotuner20v

With enough power, 3rd gear 60mph rolling starts with a z51 tranny work great on the street

Streetk14

Until your main shaft shears off! I think we both know about that one

turbotuner20v

I broke mine with 420whp... probably from bogged launches at the track. So far so good at 900whp

zuluvett

Those were my exact thoughts for a while. Feels like i have to shift more often on my supercharged z51 than on a Z. What are the benefits of having the z51 tranny with that much power? If i change the clutch out what is the best route to take with the tranny send it somewhere or just buy a z06 one?

402stokerc6

I agree my shop says wait till it's done and go from there but if your feeling same way and already have the z51. Supercharged you have the experience.. what are you pushing for hp and have you raced an molded z.s

newschool

Agree 100%! My car ran great at 900 wheel from 60 in 3rd.

Still_Slow

was this done on your stock Z51 trans?

zuluvett

I have never raced a modded c6z before. I have a 08 z51 with a widebody pushing easily 650 rwhp with restrictor plate installed. I was just wondering when the clutch goes out, should i upgrade the trans or get a c6z tranny, will it even work with my diff?

newschool

Yes. The stock 6060 is stout. Lot of people seem to upgrade there trans for no apparent reason other than that is what they think the need.

mittens

I have a built stage 5 RPM ZO6 tranny in my ZO6. and I want a Z51 gearing. (since I cant changer rear end gears with out swapping whole diffs to the weaker base C6)

really I want 1-3 Z51, and 5-6 ZR1. this will net zor tranny and 3.73 rear gera for 1-4th, then 5 and 6th will be ZR1 whish 5th is better for the standing mile. topping just over 200 instead of 220 like a ZO6

Still_Slow

Dumb noob question, but since my car is an 07' Z51, I have the T56 trans correct? 08 z51's are the 6060?

zuluvett

You are correct your car has the T56 the 08+ came with the 6060

zuluvett

Maybe someone could clarify what im thinking. In a perfect world you have two identical cars with the same power weight traction etc. Racing from a 60 roll would benefit the base/z06 gearing since they are in second and you are in third? I just feel like they will be able to stay in their power band longer on roll races, Since the z51 has to shift much quicker?