blackbird345

I'm looking at MT ET Street Radial II 28X11.50R17 vs the ET Street 26X11.5X17 anyone know which will hook better? I have a 2007 Z51 MN6 around 600 whp (ECS SC 15 psi). I was thinking that the Street Radial would hook better because of the hight therefore effectively increasing my gear ratio.

clemsondave

I think you have it backwards. Smaller diameter tire = increased gear ratio. I would assume in most cases, a bias ply would hook harder than a radial.

HawkIVette

on both accounts. smaller tire= higher gear ratio, bias hook better than radial, but I have heard a lot of good things about the radial.

siffert

Since you got a stick, go with the ET streets. Almost all the fast guys with a stick run the bias ply ET Street.

c5mtl

i am in the mid 1.5x range with my et street radials

chaase

I have heard the bias ply is a little easier on the drive train for the stick drivers.

16Again

From what I "hear" The ET Street absorbs the drive line shock a bit better since the tire has a bit more flexible sidewall.

blackbird345

I meant decreasing the number increasing the length of gears. I'm guessing it must be sucky track prep then. I just don't understand why they don't make ET Streets in 28 inch.

clemsondave

You will get a better 60' with a shorter tire than a taller tire - assuming traction is the same.

They do make ET Streets in 28", unfortunately just not in 17". 28 x 11.50-16

GARY2004Z06

but the fastest guys run DRs.

siffert

I dont know what the Z06 stick guys use, but for the ls2 and ls3 sticks, the fastest i think for sticks are on ET Streets. Auto's is a completely different story, where DR's rulz.

clemsondave

So, I guess I'm not fast??

SuperZ1

siffert

End of Story. Case Closed.

Postscript: Dont think the flex/wrinkles would have shown that much if there was more air in the tires

Allthrottleandsomebottle

My info:

My consolidated list of personal stock
Wheel size,type, & weight in lbs ea
OEM MAG 17 x 8.5, 17.5
OEM MAG 18 x 9.5, 19.5
OEM MAG 18 x 9.5 w/ new Yoko 295/35-18 AVS sport non-runflats, 50
OEM MAG 18 x 8.5 w/ new Yoko 275/35-18 AVS sport non-runflats, 46

PWO 5 spoke Y2K repos 17 x 8.5 +58mm, 20
PWO 5 spoke Y2K repos 18 x 9.5 +65mm, 23
HRE 18 x 9.5 545 w/ clear center +58mm, 22
HRE 18 x 12 545 w/ clear center +74mm, 27

PWO 17 x 8.5 +58mm w/ oem runflat 245/45/17 (8/32 tread), 50
PWO 17 X 8.5 +58mm w/ new MT ET Street 26 x 11.50 x 17 with TPS & lots of weights, 45
OEM MAG 17 x 8.5 w/ NITTO 555 275/40/17 (1/2 tread), 45
OEM MAG 18 x 9.5 w/ stock OEM 275/40/18 runflats, 53
OEM MAG 17 x 8.5 w/ stock OEM 245/45/17 runflats, 47
OEM MAG 17 x 8.5 w/ new MT ET Street Radial 275/40/17, 47
OEM MAG 18 x 9.5 w/ new Hoosier R3S05 275/35/18 road race radial 4.5 32nds tread with std valve stems 42

CCW drag pack rear 16 x 10 classic full polished with well worn MT ET Street 26 x 11.50 x 16 (1/32 tread) with center cap, 34

CCW drag pack rear 16 x 10 classic full polished with 1/2 worn MT ET Street 26 x 11.50 x 16 (3/32” tread) with center caps, 38


CCW drag pack front 16 x 5 classic full polished with like new Firestone deluxe champion 5.00/5.25-16 (10/32 tread) with center cap, 33

OEM runflat 275/40/18 worn to wear bars, 29
Bridegstone expedia S-01 345/35/18 (9/32 tread), 37
New MT ET Street Radial 275/40/17 (6/32 tread), 30
New MT ET Street Radial #3784R P315/30R18 26X12.50R18 (6/32 tread), 28
New MT ET Street 26 x 11.50 x 17 tires (6/32 tread), 25
MT ET Street 26 x 11.50 x 16 tires worn out (1/32” tread) 15.75
MT ET Street 26 x 11.50 x 16 tires (3/32” tread) 18
OEM runflat 245/45/17 (8/32 tread), 29
BFG G-force drag radial 345/30/18 new, 30
BFG G-force drag radial 345/30/18 1/32nd, 29.5
BFG KDW2 295/35/19 new, 32
Yoko 295/35-19 AVS sport non-runflats (2/32 tread), 29
Toyo Proxes RA1 335/30ZR18, new, (8/32 tread in the middle & 6/32 outside edges), 33.2

Topline 5 spoke Y2K chrome repos 18 x 10.5 +58mm offset rims w/ new MT ET Street Radial #3784R P315/30R18 26X12.50R18 , 58

Topline 5 spoke Y2K chrome repos 18 x 10.5 +58mm offset rims w/ new 275/35/18 BFG G-force TA drag radial, 53




Bob' House of Wheels 18 x 10.5 Chrome Y2K repos widened to 18 x 12. Work was done by Weldcraft Wheels.+56mm (with the 1.5" strip inserted, they should be right at 9.375" backspace, 31

HRE 18 x 12 545 w/ 345/30/18 BFG DRS, 57
HRE 18 x 9.5 545 w/ clear center +58mm w/ new 275/35/18 BFG KDWs, 52
HRE 18 X 9.5" 545 full polished w/ Yoko 265/35-18 AVS sport non-runflats (8/32 tread), 50
HRE 18 x 12 545 w/ 345/35/18 EXPEDIA S-O1 (9/32 tread), 64
HRE 19 X 10" 545 w/ Yoko 295/35-19 AVS sport non-runflats (5/32 tread), 58
HRE 19 X 10" 545 w/ new BFG KDW2 295/35-19 (10/32 tread), 61
HRE 18 x 12 545 w/new Toyo Proxes RA1 335/30ZR18 & TPS, 58.4 lbs

My best 60' times on my 97' 4l60E A4:
New MT ET Street Radial 275/40/17 on C5 OEM 17 x 8.5 Magnesium wheels = 1.47 60'
Worn out 26 x 11.50 x 16" Mt ET Street on a 16 x 10 CCW drag pack = 1.51 60'
New 26 x 11.50 x 17" Mt ET Street on an PWO Y2K 5 spoke 17 x 8.5 = 1.53 60'
1/2 worn (3/32” tread) 26 x 11.50 x 16" Mt ET Street on a 16 x 10 CCW drag pack = 1.53 60'
1/2 worn 345/30/18 bfg dr on HRE 545 18 x 12 wheel = 1.49 60'
I have over 400 passes on these set-ups together and at different tracks....

And once I get my 01' stick dialed in tune wise...........I will be able to compare that as well

siffert

I didnt see it on the tires/wheels in a Bottle list so:

NEW-BFG Drag Radial 2 275/40R/17 27.5 lbs

OEM C5 Z06 17x9.5 front wheel 19.1 lbs (Speedline)
OEM C5 17x8.5 front wheel 22 lbs (Wagon Wheel)

GARY2004Z06

No Dave, you are fast! I was only alluding to the following:

C5 Z06 External/Internal Bolt On times (stock cubes, n/a, cams, h/c, all bolt ons)

1---9.985 @ 138.80--1.428 --robz ---------'03 04/08 -----H/C, ET ST, Gears, Post 328, Slip

C5 Z06 External Bolt On Times (stock long-block)

1--10.890@125.06--1.465--GARY2004Z06--'04 12/08-VR CAI, DRs, ARH LTs, Clutch, Gears, Post #356

I know both of these guys run DRs.

siffert

I saw the C5 Z06 Fast List......stock class, stock-cai/dr's class, and of course yours. What makes the C5 Z06 so stinking faster than the regular C6 with similar hp? I know DA has some to do with it (been to MIR myself ) but I still was amazed at the times. I had to put on cai, headers, tune, dr's to manage a 11.79 with my C6 A6 at MIR.

clemsondave

And who holds the record for the stock fastest longblock + power adder (just so happens to be a 6 speed too)? 10.12 @ 136 1.44 60' on ET Streets

Just playin Gary.... Actually, I have not tried DR's. Maybe I should

ATNB, you don't count since you're an auto guy.

Siffert - C5Z weighs less than a C6. Different gearing too.

GARY2004Z06

We have found that DRs work well for us. They are different to work with than the ET Streets and will allow for higher tire pressures. You may want to give them a try.