Fitment Factory 20x13
 

The bar has been raised ....


Oh and it fits.....Like a Glove!

http://t1.gstatic.com/images?q=tbn:A..._Wkcaj2Bk5NSkw






http://i870.photobucket.com/albums/a...g?t=1319120082

Pics on the car?

Wow

nomnomnom :yum:

I have some but just teasers for now.

jesus... 13''??

mounted pics.

The car has had 13 inch wide wheels for awhile just was stretching a 295/30/20. Now it has a proper fitting tire to say the least.

and the tire size isssss?????

Impressive, but is there a NEED to go so wide? Or are you after a certain LOOK?

He's boosted. And function = form ;)

yeah but going very wide wont really help too much unless he gets the right compound and also has the downforce.

wider tire = more contact patch which is nice
but more contact patch = less pressure for the contact patch applied to the ground

go too wide and your tire will slide around more unless you have the additional pressure to hold it down (downforce)

theres alot more to simply going wider.

Also, 295 on a 13" wheel really isnt going wider. We need to know what tire and size he got now.

345/25/20

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I have zero traction in first three gears. The extra rubber is going to help me.

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435whp on 7.6 PSI on mustang dyno

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How you like the Gen 3's?

I'm loving them :tup:

those wheels look sick. :tup:

how do you not have traction in 1-3 with that amount of hp?

And what's your camber at?

I thought he was going to toss up some huge number and then...

None the less pretty badass! :tup:

On my old tires(295/30/20) and stock wheels I have no traction.

What number were you looking for?

435whp, granted the Mustang dynos tend to read low. That's probably 450-465 on a Dynojet.

How much rear camber are you running?

:yum: In for pics once these are installed! I loves me some wide tires! :tup:

435whp on a mustang dyno on my 7AT is not 450-465 on a dynojet.


Camber with the 295/30/20 is 2.6.

What would you say it is, then?

-2.6 on your old stretched tires definitely explains a lack of traction. Hopefully the new setup helps you.

There is no calculation to it or science to it to convert numbers between dynos and you know this.

I am going to go on a dynojet soon and find out.

I am more than happy with what it is putting down considering it is a 7AT.

I know that, which is why I said "probably" and gave a 450-465 range on the average DynoJet.

Mainly because someone said your numbers read low, I wanted to point out that Mustang dynos typically do... it wasn't a knock at you or your car at all...

No wonder. Need to be as perpendicular as possible for maximal traction. Hopefully you can achieve that despite a 13" width wheel with (likely) very aggressive offset. You should have all the traction you need with 345 tires, otherwise easy on pedal to the metal. :tup: Have you considered an aftermarket traction control unit?

I know. :tup:

But seems like so many people get wrapped up in a "number" to attach to a car. Any dyno can be calibrated to read whatever. The dyno is a tool not the "end all be all" for indicators of performance on the street.

Ain't that the truth. :tup:

My offsets are actually very tame :)

The car is my daily so I rather just be easy on the pedal as you suggested.

that and the lack of sidewall. I think part of why i can grip with similar HP and a narrower tire is that i'm on 17" tires with a 45% profile, you are on 20's with 30% profile.

have any ideas for what kind of track setup you'll run? or do you not plan to do that?

That's what I meant. With -2.6 degrees of camber and a 30 profile tire stretched across the rim, he had barely any contact patch.

:iagree:

yea the important thing is to always dyno your car on the same dyno when you change things. And yes, dyno's can so easily be calibrated to skew the results, which is why i'm always suspicious when shops have in house dyno's and want to show off custom work. nothing like going to another dyno and finding out your car has like 75 less hp than you thought :p

Once I get squared away with the new ISS Forged set, I will start on finding a nice set for the track.

Any suggestions as a starting point?

sub'd! more pics!

for 1/4 mile or for road course?

if you are going to just do 1/4 mile i'd get some 18x10.5+15 Enkei rpf01's with drag radials for the back and call it a day. really cheap, good wheels, very light. No real need to get all four wheels for drag racing unless you are really concerned about unsprung weight on the front wheels. theres something badass about mismatched front/rear wheels on a car at a drag strip.:p

That's a great start/idea.

rep'd

How much are the rpf01's with drag radials typically? I may be interested in these for future drag racing purposes.

brand new you can get the 18x10.5 for 360 each on vivid racing. ii'm not sure what drag radials you might prefer, but the Nitto NT-05R in a 285/40/18 would fit those wheels well and would be within 1% the correct overall diameter. most people prefer Micky Thompson's though.