Technical > Roo Man's Room
7.00 question
masracingtd1167:
--- Quote from: skydvrbob on September 23, 2015, 07:13:33 PM ---If your running 7.20's at the valley just go to another track ,that should pick up a couple of tenths. I used to run 10.20's there on a motorcycle. I went to atco and englishtown and dropped into the 9.80's 9.90's without changing a thing. Unless lebanon valley has changed in ten to 15 years it was a slow track.
--- End quote ---
Lebanon is much better now than it used to be . Wayne Delmonte has been the track manager for a wile and has really done a nice job with the place ! It is a bout a tenth slower than Epping .
masracingtd1167:
--- Quote from: dreracecar on September 23, 2015, 04:25:54 PM ---Straight alcohol injected will not cut it in 7.0 you will need a little Nitro. and the money you spend on all that lightweight stuff you could buy a decent blower setup
--- End quote ---
I really don't see why I can't run 7.00 with my setup . I am pretty close now running low 7.20's . I also use an 18 degree head and the cost for an intake would be as much as most of the parts I want to buy .If I was going to run Nitro I would have to change pistons . Too much compression and gas ports on my current pistons . If I can't run 7.00 I will just go back to the 7.50 class!
dreracecar:
Not really saying you cant, but you should be able to run in the 6.90 range in order to compensate for weather conditions and be able to tune the motor up or down to hit the number without set on kill. J/F guys running those numbers have a lot of money tied up in the engine package. Your friend hurting parts at 15% had serious tuning issues which is not the norm with that low of a percentage
ricardo1967:
--- Quote from: dreracecar on September 25, 2015, 03:13:46 PM ---"...Your friend hurting parts at 15% had serious tuning issues which is not the norm with that low of a percentage..."
--- End quote ---
Hi Bill, with due respect, that was my thinking too. Compared to the exotic Jr Fuel motors, I think (speculate) that tipping the can at 30% would be cheaper on the long run.
I'm very excited with your pursuit for the 7.0s, good luck and keep us posted. From the little I know you, I know you can do it. Although so far I'm pretty much a bench racer, I fully sympathize with your perspective:
--- Quote from: masracingtd1167 on September 23, 2015, 12:27:53 PM ---"... To me half the fun of racing is trying to come up with ways to make my car faster ! ..."
--- End quote ---
masracingtd1167:
I really did want to try a little nitro but after seeing what happened to his motor kind of scared me a little . The two things I am worried about are my compression 14.9 and gas ports in my pistons . I guess I could use a thicker head gasket and retard the cam a couple of degree's . I ran this same combination when I was spraying it with nitrous and it went 6.94 but I am still a little nervous about the nitro !I am on the last rebuild for this set of pistons so I could see doing it then and get the right piston and ring package .
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version