28" MT tires
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,255
Likes: 695
From: Paducah KY
2023 C5 of the Year Finalist - Modified
28" MT tires
Anybody using these 28X11.50 MT ET streets? I'm thinking about moving up to these instead of my 26's to get more contact patch. I'm not for sure though on how it's going to affect my gearing. Like to know if anybody is using these and what gears they have. It would probably put my ration at about 3.73 or maybe 3.42 from my 3.90's.
Le Mans Master
Joined: Nov 2003
Posts: 8,308
Likes: 157
From: NJ
Originally Posted by indebt
Anybody using these 28X11.50 MT ET streets? I'm thinking about moving up to these instead of my 26's to get more contact patch. I'm not for sure though on how it's going to affect my gearing. Like to know if anybody is using these and what gears they have. It would probably put my ration at about 3.73 or maybe 3.42 from my 3.90's.
Here are 3 alternatives that I am also considering:
1)M&T 26x11.5-16lt(the sectional width is 1" more than the etstreets)
2)M&T 26X12 (full drag tire not DOT approved)
3)MT et street radials in 16's.
I may pull the trigger on #2 and give you feedback.
My friend has #1 and feels they hook equal to the MT et streets with 2-3 more psi.
And #3 have been impressive.
Tough call. Any feedback will be appreciated.
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,255
Likes: 695
From: Paducah KY
2023 C5 of the Year Finalist - Modified
Yeah, keep me informed. I like the 28's b/c than I would be able to keep it in 3rd gear during an 1/8th mile run. Plus, more contact patch wouldn't hurt. Guess I'll stick with the 26's for about a year or so and than see what to do. Might look into some Hoosier's if I'm unhappy with my ET Streets, although so far they have been an improvement. 
Burning Brakes
Joined: Aug 2002
Posts: 949
Likes: 1
From: Cary Il
4.10 DTE rear end - 26" ET's ran out of 3rd gear B4 1/4 mi. Switched to MT 12.5 X 28 X 16 and solved the problem. Brake tourqueing at 1600 rpm tires come up about 3" with a 60' of 1.45 or less and I go through the traps at 6650 rpm @ 142 mph in 3rd gear with the convertor locked with my current conservative setup! The net result of the 28" is 3.88 rear end effective!
JR
JR
Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,255
Likes: 695
From: Paducah KY
2023 C5 of the Year Finalist - Modified
Isn't a 28" tire more the size of my factory 295/35 18 rear I had? I had a 275/45 17" MT Drag Radial and it says it's equilavent to a 26X11.50X16. So, I'm trying to make sense of all this.......I had 3.42's stock with the 295 tire. I upgraded to a 3.90 but yet run a 26 so isn't that cutting my ratio down a little bit, so I really need a 28" to be an actual 3.90???? 
Le Mans Master
Joined: Nov 2003
Posts: 8,308
Likes: 157
From: NJ
Originally Posted by indebt
Isn't a 28" tire more the size of my factory 295/35 18 rear I had? I had a 275/45 17" MT Drag Radial and it says it's equilavent to a 26X11.50X16. So, I'm trying to make sense of all this.......I had 3.42's stock with the 295 tire. I upgraded to a 3.90 but yet run a 26 so isn't that cutting my ratio down a little bit, so I really need a 28" to be an actual 3.90????
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Thread Starter
Drifting
Joined: Apr 2005
Posts: 1,255
Likes: 695
From: Paducah KY
2023 C5 of the Year Finalist - Modified
Thanks everyone for the info. Guess I'll just stick with the 26's and work on my launches. I would like to get into the 1.50 range or a little lower. I'm still spinning just a tad now, launching at 5K so I might lower it a little bit. Also, I talked with a guy and he was running 15psi in his ET Streets and was pulling a 1.40 something??? I've been running 12 but I may up it a little bit for this Friday.