Car takes too long to get fast

[erich17]

Remember on high banked tracks its common for people to run a stiffer LR spring because it typically has more wheel weight during cornering.  Just what i have heard.

[LegendConsultant]

Do you buff your tires before every race weekend?
Do you run nitrogen instead of air?

[justfreaky]

Do you run nitrogen instead of air?

Seriously?!!!
Nitrogen is a plus for very long runs. Not usually an expense worth spending the cost vs the benifit.

Steve

[Legends57x]

Steve,

I hate to tell you this, but using nitrogen to fill tires is common in the asphalt series.  Many use it, lots more than you think.  Another reason I switched to dirt...

[VMS Motorsports]

There's dirt guys that use it too, just not as many.

[justfreaky]

I know that for some it is common practice to use nitrogen. For short races, it is not cost effective.
Whatever!

Steve

[VMS Motorsports]

Tire pressures increase an average of 3/4 pound during an 8 lap heat race on dirt with the set-up I was running last year, as much as 2.5 pounds in a 20 lap main if the track was black. I run air in my tires, but I'm not going to be in NASCAR next year either, am just out there to have some fun.

It's not cost effective to haul 1 Legend car around with a $60,000 truck and $40,000 trailer either, but a lot of guys do it. 

[IraceLegends77]

It's not cost effective to run a sealed motor but that is whole different story and people do it too.

[justfreaky]

You all are taking this all wrong. Nitrogen in the tires is not going to make it go faster. If you read the question; It was why the car was taking so long to come up to speed. Has nothing to do with air or nitrogen in the tires. Tire pressures suggested as a possible cause. I am just not seeing nitrogen as a fix to his problem.

Racing is not cost effective.

Steve

[VMS Motorsports]

I know you're mind is in other places Steve, but air pressure and nitrogen use are linked.
Not saying nitrogen in the tires is the answer, but pressure buildup or initial pressures could be the issue.
We haven't heard from the original poster in 3 weeks, so we may never know

[justfreaky]

I agree with you Jim. Could be that his initial tire pressure was wrong and air pressure build up was helpful in getting the car up to speed. 
Hopefully we will hear back from him on this issue.

Steve

[tlr_28]

Hey guys sorry it's been so long. I've been real busy racing gokarts, the legends, and hunting, broke a cam in the car 2 weeks ago.... But I lowered my air pressure to29 rr, 27rf, 16 LF, and kept the LR at 10.5. It made the car drive like a dump truck it was so tight. I went to 30.5, 28.5, 16.5, and 10.5 and it was fast. They didn't pull me on the start like the use to I just couldn't get around them for a few laps. Was about to pass for the lead taking the white flag and the cam broke.... I'm going to try some softer springs and see what that does. Thank you all for the help

[tlr_28]

Just got the head back today. Apparently the valve didn't have any lash so it wasn't closing off all the way until the head got hot and expanded. I think I was fighting a losing battle trying to change the car and make it come in faster. Thank you for all of your helpful tips and suggestions!

[LegendConsultant]

Do you run nitrogen instead of air?

Seriously?!!!
Nitrogen is a plus for very long runs. Not usually an expense worth spending the cost vs the benifit.

Steve

With nitrogen you can start your pressures higher and not have to worry about much pressure buildup resulting in the car changing during the race. And car is fast from the get go.

Seriously !!!!!!!!

[justfreaky]

I get your point. Thing is, you can run some practice laps at speed and figure your tire  pressure build up. Pretty easy, and no cost. Just sayin'.

Steve