I want to get the MT slicks, and I know they sell tubes for it. Should I get tubes for it or just run them with no tubes?

 

Well if they say they require tubes, then more than likely you will definantly are gonna need them, if they don't then you don't need them. More than likely MT slicks require tubes.

 

The reason I'm asking is because it states running tubes only requires in certain circumstances. I asked a guy at the track that was racing with the MT slicks and he said he didn't run tubes.

 

You do not need tubes, I am on my 3rd set of M/T's as of this week. Got 150 runs from the last pair.

Without tubes you will loose air over time (ie a couple of weeks) but I just top them up before I leave for the track.

You will get a lot of conflicting stories about this, M/T recommends tubes as do all of the manuf's I believe. But if you talk to the hard core racers (the ones who are at the track every weekend) will you find no one uses tubes.

 

I'm basically getting a 15x7 rim. Does the rim have to be special or anything like that? Does it mount on the rim like a regular tire? Do I have to get it balanced?

I decided to go with a MT ET slicks 22x8x15

 

The 15x7 will be fine for the 22x8x15's. That is exactly what I am using. This week I am switching over to 24.5's just to give me a bit longer in 3rd.

They do mount like a regular tire, any tire shop can do it. Sometimes they are very hard to get them to seat on the rim. What I do now is pump them up to 100 psi and leave them overnight and they will usually seat. Probably just my Kosei wheels I don't know of anyone else who has had this problem.

Definately get them balanced. I tried once without and just about bounced me off the track.

I have lowering springs but approx 1.5", with those the front end is very close to the ground with the 22's but I haven't bottomed out except once on a very very rough return road.

The best pressure I have found is approx 13 psi, make sure you check after every round and let air out to keep the pressure down, but the first couple of rounds is where it rises the most until they get warm.

Also watch the wear pattern, there are 4 holes across the face of the tire to show you how they are wearing, if you start wearing more on one side than the other swap them around. Good idea to mark driver/passenger before you put them on so you know.

Jime's Burnout Tip
Drive into the water box, burp the front wheels, ie 1 or 2 revolutions just to get them wet. Then drive on to where its dry to start your burnout.
Leave it in first gear, put e-brake on, hit throttle and modulate to keep from hitting the rev limiter, it will spin very easily.

Just after the wheels start to spin, turn your steering wheel slowly from side to side, this will get both wheels spinning if you don't have LSD.

Don't burn the M/T's to long, just enough to get smoke and then idle slowly up the the tree to try and pick up as much track bite as possible.

If possible get someone to watch you and let you know if both wheels are spinning, the speed that you turn the steering wheel from side to side will affect the ability of the 2nd wheel to start spinning. Its not always the same one that won't spin either.

 

what do you mean by 4 holes???

I plan to get Kosei rims too since my rims are 15x6(I have a 99 altima, you already know)

Also I noticed that I have the drop sensor in the same place as you on my 99 altima. So basically you kill the electricity to the resistor and it pumps the tranny full line pressure?

 

You will see once you get them, they are just to show tread depth and there are 5 or 6 sets of them across the face of the tire to show wear.

Ya the drop resistor just changes the voltage to the line pressure solenoid. Please put it on a WOT switch (normally closed n/c), do not drive the car normally when disconnected it for wot only.

 

basically most switches that are sold are normally open and when you press the button it closes it and the contacts touch each other. But the switch that should be used is normally closed so the electricity is still flowing, but when you are wot it opens up the connection and no electricity is flowing throught it and you get full pressure?

 

Like Jime says no one uses tubes really. People that race alot refill and adjust their tire pressure every time they go to the track. The only reason I can see for tubes is for cars that have slicks on them all the time, so you don't let the car just sit on the wheel if the air runs out of the slicks.

 

All the nitrous microswitches are N/O only but if you go to an electronic or surplus store you should be able to pick them up like the one below that can do either. These I got for a couple of bucks at a surplus store.

 

Oh i see. Also I found that A MSD has a switch like that can be switched from normally open to normally closed.

 

Here's a little info that might help in your decision.
http://www.competitionplus.com/2005_05/mt_tires.html

 

Ok, so when the slicks are on the wheel and what should the psi be to keep them seated between races in the garage, a 100psi?

 

No, just leave them alone and fill them up before the next race.

 

where is the cheapest place to order them.. Are the 22x8x15's too wide for stock steels?? If so what size should i get?? group deal on these???? anywhere online where to order them cheaper than les schwab's?????