Steeve_Civic

Which tires do you advise for dyno hits?
I tried today with toyo R 888 but spinning a lot.
Thks

rudebwoy

iTrader: (1)

try using the M&H 235/60/15 bias

joe b

I run my Dunlop Direzza Star spec tires at 20 psi and use Vht on the dyno rollers . Works wonders for me at 665whp and a little over 500lbs of torque .

ATYPR

What kind of dyno? I've find on some dynos regular street tire work way better.

AznBlueBoy

find a shop with a dynapack. no slipping and more accurate. all the best shops are using them these days.

Na-TiffeR

Dynojet !

Steeve_Civic

Cartec 1200hp 4wd
How do I need to strap down the car?

Twenty47

O rly

rudebwoy

iTrader: (1)

I love the dynapack, no chance of slipping or junping off the rollers.

mint

iTrader: (1)

Kumho Ecsta
195/50/15 at 40psi.
Dyno dynamics made 841whp

2000CTRSi

You can have people stand on the door jams with the doors open for added weight. (not safe)

Bigger tires/slicks will skew numbers but who cares about numbers if you have a baseline.

Some dyno rollers are just worn out from use, and traction is impossible... so its whatever works for you.

shawty22

We use a dynamic dyno. We use any street tire and there's no issues of spinning really.

I went on a dynojet once with 225/50 street tires at 20psi and it started spinning at like 6k with two small guys standing on the straps. Put a big guy on the straps and got the tires a little hotter and it hooked fine.

You just need to find some bigger friends with bigger ***** to help you out.

Steeve_Civic

So no Drag tires ?
How do you need to strap down the car?

JRSC01GS-R

Once the car is strapped in place on the rollers try to figure out a way to actually strap the car down with extra straps pulling down on the car to keep tires from spinning. We used an above ground dyno so we were able to hook the straps to the lower control arm area and ran the strap straight down to the ground. This worked very well

itspools

I would rather have aids then a Dyno pack. I've tuned on them before and not my preference.

For cars with major traction issues I try position the straps so they pull as straight down as possible instead of straight out. Takes a few extra things to do this though and it's not an option on every dyno.

AznBlueBoy

What don't you like about them?
So many well known shops are using them including speedfactory.

D-Rob

Ohhhhh c'monnnnnn, you just didn't get a chance to really get acquainted!

Tires? Dyno?

Mo_Spec

We have been using 225/50/15 BFG G Force Sports on a dynojet.
Strapping the lower control arm from the front and the rear, and using some napa belt dressing on the tires. Holds 1000+

Steeve_Civic

Thank you, any drag tires?

DA 4 Lyfe

I used my 235/50/15 Toyo R888's and only had 2 people standing on the car and it didn't spin at 25 psi (675whp)

Steeve_Civic

These bro?

http://www.mandhtires.com/M-H-Racema...5#.VAJBu2IaySM

PSI GUY

iTrader: (2)

Belt dressing, spray the rollers in front of the tires while rolling till you start to see the tread on the rollers. Holds just fine up to around 1000 that I have seen.

Turbo-LS

iTrader: (4)

Do not use slicks on the dyno. Use a good radial or DOT bias tire. we used some beat *** all seasons on my car with 20 pounds air pressure on mustang dyno with about 1200lbs on the door jams and extra straps to hold 700