26" or 28" tires for drag strip - Page 2

6spdhyperblue · 04-03-2021, 02:18 PM

I don’t know how much power you need to get the 275 to slip but I can’t get them to not grip

SSUNDVL · 04-03-2021, 08:14 PM

Quote:

Originally Posted by 6spdhyperblue

I don’t know how much power you need to get the 275 to slip but I can get them to not grip

Yeah idk track prep was on point that night too, there was a ton of cars braking drivetrain. My car is supercharged with cam and flex so it makes some power.

Joshinator99 · 04-03-2021, 08:39 PM

Quote:

Originally Posted by SSUNDVL

Yeah idk track prep was on point that night too, there was a ton of cars braking drivetrain. My car is supercharged with cam and flex so it makes some power.

Join the club. Lol

Supercharger mixed with sticky tires equal questionable stock SS driveshaft lifespan...

lt4camaro · 04-04-2021, 06:35 PM

Quote:

Originally Posted by TurboVet

It’s a fbo automatic. Had a 1.69 60ft with some old 26” nitto drag radials last season. Has anyone tried both 26” and 28”?

26 inch is going to give a gear ratio advantage. I am going from a 27.7 to a 27.0 tire and gear ratio goes from 2.77 to a 2.83. Going to a 26 inch tall tire you will be closer to a 3.0 rear gear ratio . Make sure you add some width picking out the size you want . Let the wider tire make up for the bigger diameter and have a equal foot print.

lt4camaro · 04-04-2021, 06:37 PM

Quote:

Originally Posted by TurboVet

It’s a fbo automatic. Had a 1.69 60ft with some old 26” nitto drag radials last season. Has anyone tried both 26” and 28”?

BTW, thats a great 60 ft.

6spdhyperblue · 04-06-2021, 09:19 AM

I ordered a set of et street r bias ply in a 28” to see if I can trade some mph for et. I’ll do a write up. I love the 275/40 et street r radials but wanted to experiment. Car will be the same besides weather

lt4camaro · 04-06-2021, 10:47 AM

Quote:

Originally Posted by 6spdhyperblue

I ordered a set of et street r bias ply in a 28” to see if I can trade some mph for et. I’ll do a write up. I love the 275/40 et street r radials but wanted to experiment. Car will be the same besides weather

Wouldnt the taller tire do just the opposite? shorter tire better ET, less MPH , just my thoughts no actual proof LOL

6spdhyperblue · 04-06-2021, 11:04 AM

I was thinking radial to bias ply would do that, maybe the height will offset it some. There was no height choice. We shall see.

s346k · 04-06-2021, 06:10 PM

the taller tire tire will cost et and mph both on a car that isn't spinning much to start with. there is a weight savings in bias ply but it will be more than offset by the height difference.

i hope you got some bias fronts to go with those rears.

6spdhyperblue · 04-06-2021, 06:33 PM

My 275 et street r still have plenty of meat on them maybe I’ll cancel this order

I think these bias plys are heavier too. I just wanted to see what they would do real world.

I couldn’t get the radials to spin ever on the strip

Joshinator99 · 04-06-2021, 08:09 PM

Quote:

Originally Posted by s346k

the taller tire tire will cost et and mph both on a car that isn't spinning much to start with. there is a weight savings in bias ply but it will be more than offset by the height difference.

i hope you got some bias fronts to go with those rears.

Quote:

Originally Posted by 6spdhyperblue

My 275 et street r still have plenty of meat on them maybe I’ll cancel this order

I think these bias plys are heavier too. I just wanted to see what they would do real world.

I couldn’t get the radials to spin ever on the strip

I agree with @s346k. If you’re not spinning now, there’s really no benefit to running taller tires. The 28” tires are popular with us crazy ass PD guys since it helps blunt the tsunami of torque off the line... a little.

Bomicino · 04-06-2021, 08:41 PM

I too was curious about the difference. I'm M6 and could only get 1.7 60 with a 26" DR2. Could not get a consistant launch. I've mounted 28" bias plys that I will try out within the next week or two. I'm lazy, and want to find a consistant RPM range to where i can dump the clutch and move out. Will a couple tenths improvement on the 60 be negated by the height penalty?

s346k · 04-07-2021, 01:05 AM

Quote:

Originally Posted by Bomicino

I too was curious about the difference. I'm M6 and could only get 1.7 60 with a 26" DR2. Could not get a consistant launch. I've mounted 28" bias plys that I will try out within the next week or two. I'm lazy, and want to find a consistant RPM range to where i can dump the clutch and move out. Will a couple tenths improvement on the 60 be negated by the height penalty?

i doubt you'll see .2 reduction in 60'. just because it hooks hard doesn't mean it's going to be quicker, especially to the 330. id guess you'll lose 1.5-2 mph on the big end. if you were spinning a lot before i have to wonder what you were doing. the 275/40/17 MTs all but dead hook on the street with 27 psi in them. 6k+ rpm slip-dump scenario.

Bomicino · 07-13-2021, 07:06 AM

I recently tried 28x10.5 Pheonix bias on 17x8s. They would dead hook side stepping at over 6k, and then bog real bad. Im no expert, but im guessing 517/450 isnt enough to necessitate the 28. I'll be going 15" with a 26 next time to maintain sidewall and hopefully be able to roll out without falling on its face.

04-03-2021, 02:18 PM	#15
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,675	I don’t know how much power you need to get the 275 to slip but I can’t get them to not grip __________________ ‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122 ‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold) Last edited by 6spdhyperblue; 04-06-2021 at 09:34 AM.

04-06-2021, 09:19 AM	#20
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,675	I ordered a set of et street r bias ply in a 28” to see if I can trade some mph for et. I’ll do a write up. I love the 275/40 et street r radials but wanted to experiment. Car will be the same besides weather __________________ ‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122 ‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold)

04-06-2021, 11:04 AM	#22
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,675	I was thinking radial to bias ply would do that, maybe the height will offset it some. There was no height choice. We shall see. __________________ ‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122 ‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold)

04-06-2021, 06:10 PM	#23
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,396	the taller tire tire will cost et and mph both on a car that isn't spinning much to start with. there is a weight savings in bias ply but it will be more than offset by the height difference. i hope you got some bias fronts to go with those rears. __________________ 2016+ camaro: everyone’s first car

04-06-2021, 06:33 PM	#24
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,675	My 275 et street r still have plenty of meat on them maybe I’ll cancel this order I think these bias plys are heavier too. I just wanted to see what they would do real world. I couldn’t get the radials to spin ever on the strip __________________ ‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122 ‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold) Last edited by 6spdhyperblue; 04-06-2021 at 07:43 PM.

04-06-2021, 08:41 PM	#26
Bomicino Drives: 2020 LT1 Join Date: Dec 2019 Location: Gilberts Posts: 123	I too was curious about the difference. I'm M6 and could only get 1.7 60 with a 26" DR2. Could not get a consistant launch. I've mounted 28" bias plys that I will try out within the next week or two. I'm lazy, and want to find a consistant RPM range to where i can dump the clutch and move out. Will a couple tenths improvement on the 60 be negated by the height penalty?

07-13-2021, 07:06 AM	#28
Bomicino Drives: 2020 LT1 Join Date: Dec 2019 Location: Gilberts Posts: 123	I recently tried 28x10.5 Pheonix bias on 17x8s. They would dead hook side stepping at over 6k, and then bog real bad. Im no expert, but im guessing 517/450 isnt enough to necessitate the 28. I'll be going 15" with a 26 next time to maintain sidewall and hopefully be able to roll out without falling on its face.

User Name		Remember Me?
Password