Can’t hook with Et Street r bias ply

[raycer]

Cant seen to get 60 ft times that others are getting. Car is running 11.30 @125 with a 1.74 60ft. What am I doing wrong. Car is around 600 whp . Spinning and recovering never dead hooking. I thought I could run a 1.6 with this power. If I switch to Hoosier 28x10x17 slick will I improve?

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[growler]

manual tranny is your problem I cut 1.70 on factory stock tires with the ten speed auto.. and then u have a roots style supercharger with instant torque magnifying the issue, and i'm only .3 from your time naturally aspirated..with only e-85 tune
I've been where your at with my gt500 ..tons of hp ...high 60ft.. and I spent thousands to remedy it and still end up inconsistent... why??? because to launch high torque cars you need to slip clutch and ease in throttle all within a tenth or so of a second...which is hard to do.. buy more tire which will allow u to dump and not spin,,,which is what your proposing..its your car and you love it i'm sure but if u wanna be fast go auto and turbo..next is auto and centri..next is auto and roots..last would be manual and roots style dollar for dollar...good luck

 

[NC85]

OP,

Are you lowered?

 

[Burkey]

Cant seen to get 60 ft times that others are getting. Car is running 11.30 @125 with a 1.74 60ft. What am I doing wrong. Car is around 600 whp . Spinning and recovering never dead hooking. I thought I could run a 1.6 with this power. If I switch to Hoosier 28x10x17 slick will I improve?

What sort of pressures are you running?
Suspension set up?

 

[raycer]

I have no interest in an auto at all. I don't care how fast they are. Not interested in removing weight either.
I am not lowered. I tried 14 psi . Launching at 4000 with a good burn out. Seems to bog at 3500 a bit resulting in 1.8 . Car has cradle lock and vertical links. I want to try the Hoosier if it would hook harder. Track prep seemed non existent so maybe that is part of it. It was HOT and humid also .

 

[raycer]

manual tranny is your problem I cut 1.70 on factory stock tires with the ten speed auto.. and then u have a roots style supercharger with instant torque magnifying the issue, and i'm only .3 from your time naturally aspirated..with only e-85 tune
I've been where your at with my gt500 ..tons of hp ...high 60ft.. and I spent thousands to remedy it and still end up inconsistent... why??? because to launch high torque cars you need to slip clutch and ease in throttle all within a tenth or so of a second...which is hard to do.. buy more tire which will allow u to dump and not spin,,,which is what your proposing..its your car and you love it i'm sure but if u wanna be fast go auto and turbo..next is auto and centri..next is auto and roots..last would be manual and roots style dollar for dollar...good luck

So you think I should slip the clutch? I usually just let it out as fast as I can. Will the Hoosier slicks hook harder than et street r? Thanks

 

[Burkey]

I’m not sure if this is going to help you at all but here goes:
I’ve used 15-16psi on a well prepped track.
Car was NA/headers/e85
4500rpm, side step the clutch. No slip, just send it.
1.6x 60ft all day, dead hook, almost stalling the car at the launch.

I think your track prep is probably a very real issue. TVS blower isn’t helping.
Personally, I wouldn’t give up on the MTs just yet. I’d get the car on a well prepped track and play around with pressures a bit before throwing more money at the problem.

 

[drive_55_not]

So you think I should slip the clutch? I usually just let it out as fast as I can. Will the Hoosier slicks hook harder than et street r? Thanks

Yes those 17in Hoosier slicks will hook HARD on a prepped track, they'll hook on a marginal track also as long as people aren't dragging water into the lane. ...

I've cut 1,3xx 60ft with them with my 4200lb TVS 3v ,, a 250shot of nitrous ,, with a T56, 3.31 gears,, RXT clutch and 7000rpm clutch dumps on a prepped track ...

Werd of warning ... when using slicks you'll start finding the drive lines weakest links ..

.

 

[BDMACH1]

What springs are you lowered on?

 

[throthaduece85]

Yes those 17in Hoosier slicks will hook HARD on a prepped track, they'll hook on a marginal track also as long as people aren't dragging water into the lane. ...

I've cut 1,3xx 60ft with them with my 4200lb TVS 3v ,, a 250shot of nitrous ,, with a T56, 3.31 gears,, RXT clutch and 7000rpm clutch dumps on a prepped track ...

Werd of warning ... when using slicks you'll start finding the drive lines weakest links ..

.

I second this motion. When i had my S197 car it had the mt82. On a Hoosier slick when NA i would two step it at 6500, get a smidge of spin, yank the front tires off the ground and put consistent 1.59-1.61 60' times. Then I went turbo and around 4500rpm with about 16psi of tire pressure on the two step I was getting mid 1.5 60' times with a little wheel spin.Whether NA or boosted, when i dead hooked the car usually broke something. if it didnt the pass wasnt the best. All this to say, you NEED a smidge of wheel spin or parts WILL break. Slipping the clutch worked on 300hp cars on street tires. Get a two step and find that sweet spot of a little spin but still putting the power down.

 

[steph93lx]

Another vote for the Hoosier here! Try the Hoosier you will not be disappointed !!

Change from m/t to Hoosier 28x10-17 slick on my 2015 m6 GT. Night and day difference for me! Never look back !

1.50-1.60 60ft low 11's 121-124 mph
Now run Hoosier drag radial because of the A10.

 

[DickR]

Question: Do drag tires lose grip due to use (burn outs and runs) like circle and road race tires do?

 

[Jay-rod427]

They will loose grip with weathering and age is about all. Sunlight and cold weather hardens the rubber permanently.

 

[BDMACH1]

I just tested on these tires yesterday at the dragstrip. I was trying some things with my tuner, so the results are completely accurate. We were experimenting launching the 6R80 in second gear and the E.T. R Bias Ply's did very well considering track conditions were pretty dismal. I was able to footbrake the car in 2nd gear and it sixty footed a 1.51. We are heading back to the track tomorrow to see what they can hold laving in 1st gear with the 2-step/transbrake. I'll post how they do in the next few days...

 

[Friesian]

Whats a good pressure to start at with the bias ply? In guessing 14-15?

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