25thhawk

iTrader: (3)

Getting ready to order the rear and want to make sure I order the right gear. Car is an M6, 3900# with me in it, 430 rwhp 410 rwtq, 6600 rev limiter. Looking to probably run the 26 in et drag stiff sidewall. Don't want to modify the wheelwells. Car runs 12.20s at 116 now on 275/40/17 dr with only a 2.0 60ft, 10 bolt with 373s. Looking to go mid 11's after rear and tires, all suspension is done already, also have a drag bar waiting for the new rear. Thanks

Ryan

Magnet

iTrader: (36)

I would go to a taller tire and run 4.56's for optimum performance, but if your set on using a 26 you probably need 4.10.

There is a gear and tire calculator in the rear end section, and judging by your mph you can nail down the perfect combo so your crossing the traps near your redline...

25thhawk

iTrader: (3)

Thanks. 4.10 would put me in the low 6000 rpms. 4.30 would put me near 6500 rpms. How tall is the 26 inch tire and how much does it grow. Also not sure if a 26 inch with 4.30 gears will hook, but it shouldn't bog either.

25thhawk

iTrader: (3)

I meant is the 26 inch tire a 25.7 like stock or a 26.5?

Magnet

iTrader: (36)

depends on the tire, either look it up or call the manufacturer, typically a bias ply will grow close to 1in but that just a rule of thumb. A radial will hardly grow..

The taller the tire the easier it is to hook, that is most 6-speed guys move to a 28 and 4.30-4.56's... it eliminates the bog and allows you too hook easier..

25thhawk

iTrader: (3)

Looks kinda like the et drag is 26.5 in the stiff version which would max me out at 121 mph at 6600 with a 4.30 gear. That is not factoring in any growth for the tire, so I think that should be good. I cant see my car picking up that much mph unless i lighten it up. Do you think a 26 in et drag will hook with 4.30 gears and 430 rwhp?

Magnet

iTrader: (36)

I think you will fight the same battle all M6 guys fight, and thats finding a fine line between hook and bog..

mike c.

iTrader: (1)

First,if you want to hook get off the m/t tire bandwagon. They do not seem to work well on my cars and i had no luck with them. Try the M&H Racemaster. I run the 26x11.5x15 and cut 1.42 to 1.44 60 foots in a m6 car with 4.11 gears. I dump at 6,500rpm's and it's a dead hook. you do not need a 28'' tire and 4.56 gears to make the cars go. And if you want to street drive,the 4.56 will rev higher on the highway. I now run 10.6 ant 130mph on a 26'' tire and hope to go faster after this winters mods. Good luck to ya. www.intercotire.com By the way,my boy thought his 60's were good on his m/t tires. I got him to try m&h and thats all he uses now.

25thhawk

iTrader: (3)

I'm definitely open to other brand tires. Are the M&H's slicks or dot tires? Only reason I was looking at the et drags is because they make a 26 in version with the stiff sidewall. 4.10 gears maybe where I end up, but the 4.30's would definitely help get my heavy *** car moving. On the street with street tires might be another story. How many passes are you getting out of the M&H's vs the et drags?

Magnet

iTrader: (36)

I didn't say you NEEDED 28's and a4.56's but it makes it A LOT easier to get the car to do what you want.

There is also nothing wrong with M/T tires.. ET Drags are a proven tire on combination after combination, maybe you need to stop being a bandwagon tire person and be open to something other than M&H.

I bet 4.56's and a 28in ET drag would improve your 60' especially if your dead hooking at the moment

It all comes down to how much you care about performance and how much you care about street driving.. My car is my daily driver, but doesn't see much highway driving. I don't make compromises when it comes to performance though, I like to be as fast as possible for my particular setup.

Can you make a 26 and 4.11's work.. YES, is it A LOT more difficult.. YES

Carter01

iTrader: (11)

I did the 411 thing with 26s on my m6 car and hated it, 28s all the way.

subhumanzz

iTrader: (46)

i will second the 28"s and 4.56's

SlickVert

iTrader: (5)

Go MT28x10.5x15S and 4.56 and don't look back.
That is the best for your set-up.
It will save your parts as-well.
Been there tried that.

Zmg00camaross

iTrader: (11)

I like my 4.56s and 28s. 1.60 60ft with a bad bog my set up definitly has more in it, this is with stock shocks all the way around and bolt on power.

Tally TransAm

iTrader: (17)

28" tires and 4.30/4.56's

ran the 28/4.30 combo when i was heads and cam and loved it

starbucks

I'm not exactly sure why every one seems to be afraid to gear their car up with an m6? What you want is a first gear final ratio of around 13.1. You can find this out by multiplying your first gear ratio by your ring and pinion ratio, for example 2.66 (1st gear) x 4.86'( rear gear) = 12.92 first gear final ratio. This is what some old time who used to run stock eliminator in NHRA in the 60s told me and it has worked for me. I do run a 28 inch slick and turn 6800' rpm though.

Magnet

iTrader: (36)

6800 rpm isn't doable for some of us with stock springs and pushrods haha.. Most people don't do it to keep their car more streetable though..

SlickVert

iTrader: (5)

If your running stock spring then you want have the HP to be running higher MPH and the 28 and 4.56 will still be best.

BlackScreaminMachine

iTrader: (17)

In addition to what has been said. depends on the car 26 to 28" Bias Ply, and gearing to match N/A = 4.56 or Nitrous= 4.10/4,30 and a good clutch. I will also mention parts like Drag Sway bar for the rear, adj shocks, and M6 TQ Arm relocation kit.

All these things will help when you let it fly @ 5k.

JL ws-6

iTrader: (50)

5K, that's weaksauce.

Stick car you leave OFF THE LIMITER. Anything less and you're 1/2 assing it.