26 vs 28 tire for FBO car - Page 2

Ghost_16SS · 01-18-2023, 11:35 PM

It’s a 8 speed car. The tires do need to be replaced. Car has never really hooked that great on the street on the ET SS tire. I have gone as far to replace the stock rear shocks with Kelltrak double adjustables. Still working on finding to right set up but, I know the car needs new tires. Just wanted to know if a 26 would be any faster. Sounds like I will just keep the 28 on it and go from there. Trying to get the car closer to bottom 7s before all the humidity gets too bad in a few months. Thanks for all the reply’s.

Ghost_16SS · 01-18-2023, 11:38 PM

Quote:

Originally Posted by KingLT1

Stay with that and add more power.

Supercharger and maybe converter is in the plans this year.

laynlo15 · 01-19-2023, 09:02 AM

It really depends on your power level if your running NA. If your running a blower 28", I ran the 305-35-20 (28.4) Nitto 555r2s on my NA Camaro before the blower with a best 60ft of 1.72. Still running that tire on the street since we are now making over 700 rwhp with the 2300 and THPSI PI. I ran a 27.7 inch tall Nitto on my C7 NA Corvette and best 60ft was 1.56, ran the 305-35-19 Nitto on the street. I'd still run a 28" on an NA car because looks better and not that much difference in ET and I think you'll see higher top end speeds with the taller tire. But others will disagree and that's ok also. Good luck on your choice.

6spdhyperblue · 01-19-2023, 12:57 PM

Imo run 26” only on radial n/a 6spd cars

If boosted 28
If bias ply 28
If auto 28

6spdhyperblue · 01-19-2023, 01:25 PM

If Mickey Thompson made that “28” estreet r dot bias ply as a actual 27.25-27.5 instead of a actual 28.5 we’d be golden

lt4camaro · 02-01-2023, 07:17 PM

Quote:

Originally Posted by Ghost_16SS

It’s a 8 speed car. The tires do need to be replaced. Car has never really hooked that great on the street on the ET SS tire. I have gone as far to replace the stock rear shocks with Kelltrak double adjustables. Still working on finding to right set up but, I know the car needs new tires. Just wanted to know if a 26 would be any faster. Sounds like I will just keep the 28 on it and go from there. Trying to get the car closer to bottom 7s before all the humidity gets too bad in a few months. Thanks for all the reply’s.

The 305 45 17 et street R will hook better than the same size et street SS and the R is 28.1 versus 27.8 for the street SS

6spdhyperblue · 02-18-2023, 07:09 AM

Quote:

Originally Posted by lt4camaro

The 305 45 17 et street R will hook better than the same size et street SS and the R is 28.1 versus 27.8 for the street SS

I saw this post and since checked the info. From what I found, this is reversed, the R is shorter. Can someone verify?

Joshinator99 · 02-18-2023, 07:24 AM

Quote:

Originally Posted by 6spdhyperblue

I saw this post and since checked the info. From what I found, this is reversed, the R is shorter. Can someone verify?

The ET Street R radial is indeed 28.1” tall.

6spdhyperblue · 02-18-2023, 07:35 AM

Wow jegs is usually pretty accurate with weight, rollout, and height stating 27.8. That’s straight from mt tho so I guess it is taller

Was hoping the R was shorter

Jegs
R top
s/s bottom

Sillysspeed · 02-18-2023, 07:39 AM

Quote:

Originally Posted by 6spdhyperblue

Imo run 26” only on radial n/a 6spd cars

If boosted 28
If bias ply 28
If auto 28

Agreed

lt4camaro · 02-18-2023, 08:12 AM

The 305 45 17 ET street SS is heavier by 5 lbs as well as being a shorter 27.9 inches versus 28.1

Tripwire1124 · 02-19-2023, 07:25 PM

Quote:

Originally Posted by 6spdhyperblue

Wow jegs is usually pretty accurate with weight, rollout, and height stating 27.8. That’s straight from mt tho so I guess it is taller

Was hoping the R was shorter

Jegs
R top
s/s bottom

Gah dang look at the weight difference. Makes me wish I would've gotten the Rs rather than SS.

6spdhyperblue · 02-20-2023, 10:22 AM

Quote:

Originally Posted by Tripwire1124

Gah dang look at the weight difference. Makes me wish I would've gotten the Rs rather than SS.

Yessir. The R is a MUCH better tire. I had the SS first too.

The height is really gonna hurt times. We’ll see how it does. Gonna load the driveline more as well. For a manual that’s not good. I’m still pouting lol

I prob should’ve stuck with 26” but have the 28” sportsman’s up front already

6spdhyperblue · 04-08-2023, 04:41 PM

Have you guys actually measured these? Now that I’ve had these mounted and unmounted, I don’t see how they are measuring over 28”. I measured with a level and a tape measure. They seem almost exactly stock SS and LT1 height

01-19-2023, 09:02 AM	#17
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	It really depends on your power level if your running NA. If your running a blower 28", I ran the 305-35-20 (28.4) Nitto 555r2s on my NA Camaro before the blower with a best 60ft of 1.72. Still running that tire on the street since we are now making over 700 rwhp with the 2300 and THPSI PI. I ran a 27.7 inch tall Nitto on my C7 NA Corvette and best 60ft was 1.56, ran the 305-35-19 Nitto on the street. I'd still run a 28" on an NA car because looks better and not that much difference in ET and I think you'll see higher top end speeds with the taller tire. But others will disagree and that's ok also. Good luck on your choice. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

01-19-2023, 12:57 PM	#18
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,675	Imo run 26” only on radial n/a 6spd cars If boosted 28 If bias ply 28 If auto 28 __________________ ‘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)

01-19-2023, 01:25 PM	#19
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,675	If Mickey Thompson made that “28” estreet r dot bias ply as a actual 27.25-27.5 instead of a actual 28.5 we’d be golden __________________ ‘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)

02-18-2023, 07:35 AM	#23
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,675	Wow jegs is usually pretty accurate with weight, rollout, and height stating 27.8. That’s straight from mt tho so I guess it is taller Was hoping the R was shorter Jegs R top s/s bottom Attached Images __________________ ‘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)

02-18-2023, 08:12 AM	#25
lt4camaro Drives: 2021 LT1 10 speed auto Join Date: May 2013 Location: Connecticut Posts: 2,343	The 305 45 17 ET street SS is heavier by 5 lbs as well as being a shorter 27.9 inches versus 28.1 Last edited by lt4camaro; 07-10-2023 at 07:24 PM.

01-18-2023, 11:35 PM	#15
Ghost_16SS Drives: 16 2SS Join Date: Nov 2021 Location: NC Posts: 13	It’s a 8 speed car. The tires do need to be replaced. Car has never really hooked that great on the street on the ET SS tire. I have gone as far to replace the stock rear shocks with Kelltrak double adjustables. Still working on finding to right set up but, I know the car needs new tires. Just wanted to know if a 26 would be any faster. Sounds like I will just keep the 28 on it and go from there. Trying to get the car closer to bottom 7s before all the humidity gets too bad in a few months. Thanks for all the reply’s.

04-08-2023, 04:41 PM	#28
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,675	Have you guys actually measured these? Now that I’ve had these mounted and unmounted, I don’t see how they are measuring over 28”. I measured with a level and a tape measure. They seem almost exactly stock SS and LT1 height Attached Images __________________ ‘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; 04-20-2023 at 12:38 PM.

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