Best pressure for BFG Drag Radials at track??
- Thread starter Stang8URMPRT
- Start date
86Cobra
Founding Member
I just replaced them about a month ago. It's a flat tappet, and doesn't like RPM. And they are the springs called for my cam.
Nick
Nick
maverick0716
Founding Member
I'm hitting it at about 5900-6000 RPM... Dunno.. I was told I might need to check valve spring pressure and maybe shim them.
Nick
Nick
maverick0716
Founding Member
Stang8URMPRT said:
110 mph with 3.73 gears with a T-5 in 4th gear with a 26" tire (stock) is 5300 rpm.......I'm assuming the 4th gear on the 3550 is also 1.00:1 ratio. Are you sure you have 3.73's because by your rpms it sounds like you are in between 4.10 and 4.30
It's actually a 25 inch tire. I know it's right about 5800-6000 RPMs. I KNOW it's not 5300 RPMs.
maverick0716
Founding Member
Well guys, I couldn't get my bfg's to hook at all tonight. My 60ft was a 2.15, time was a [email protected] mph on motor. I went as low as 16lbs of pressure and they still wouldn't hook. In the burnout area the car felt strong, but on the line it spun real bad. I was getting teased by everyone there. I'm running 275/50/15's on a 8.5" rim. I did a pretty good burnout I thought, but I guess it wasn't enough. I tried to spray the car on the first run and the bottle went dry on me and I spun violently in first and second and went a [email protected] mph. Should I be heating the tires a lot? I know on a real slick that you should get them nice and hot, but I don't know the best way to get a drag radial to hook. I've got the car set up for the track with the complete drag launch kit from eibach on it and the car hooks awesome on the street, but not worth a poop at the track. Anybody got any suggestions???
Norkex
New Member
http://support.pro3i.com/faq.php?article=7
The article has info about burnouts for DR's and launching RPM's...
Good luck.
The article has info about burnouts for DR's and launching RPM's...
Good luck.
86Cobra
Founding Member
1bad92lx said:
86Cobra said:
Do a long burnout. They need to be hot. Once you get the pressure and burnout right, it's just a matter of practice.
Does anyone have a clue what my car should run if I get the spinning under control?? I'm thinking somewhere around an 8.0, but I'm not sure. I ran a 8.4 with a 2.15 60ft and went 85.55mph. I spun all the way through 1st and the beginning of 2nd. That was on motor. I figure why try spraying it if I can't even hook on motor. Hey 86Cobra, what kind of 1/8 mile times are you getting? I see your running 11.80's through the 1/4. Sounds like you've got a strong running street car.
later,
Matt
later,
Matt
86Cobra
Founding Member
I run consistent 7.6-7.7s with a best in the 7.5s.
I would think you could run at least an 8.0 if you get it to hook.
I would think you could run at least an 8.0 if you get it to hook.
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