I am concerned with opinions on street manners with larger blower cams with 6 speeds and 3.42 gears. How does the 224-236-114 pull 6th (0.50) at 70mph?

I currently have the CC 218-230-114 with no significant tune and it suits my streetability requirerments nicely with the ability 'lug' the motor a bit at say 1500rpm. I'd like to try a cam bigger than the 224-236 but might shy away from anything that can't operate decently at 1500rpm; as would be the case with a 0.50 trans ratio and a final drive of 3.42.

BTW, I really dont want to stray too much from the 3.42's. Definately not larger than 3.73 and street hight tires.

If a particular cam was on the ragged edge of meeting this criterion would increasing LSA to 115 or 116 help.

-Scott.

 

Hey I'll be in E. Lansing this weekend visiting the GF's grandmother. I'll probably end up at a local bar watching the game. To answer your question, I am unhappy with the way my CC305 pulls on the interstate. I have 3.73's now. Its okay unless there is a slight grade and then the motor lugs pretty good. I am starting to think I should have done 4.11's. Especially since I dont drive much faster than 75-77 any more. I'd say you would want 3.73's at a mininum.

 

I'm running 231/240 duration @0.05" lift with 3.73 gear and a 12 psi ATI/ Spearco M6. I prefer this over the 3.42. 4.10 is to low for a blown car, and, with a 2.66:1 1st, It would be a creeper. 3.89 would be great.

 

Yeah I was thinking today about how worthless 1st gear is, If I had 4.11's I dont think I would use it much, just do the 2 to 4 shift. I think 3.90's would be great. Thats probably my personal sweet spot, or a .54-55 6th gear.

 

I generally pull around 10-12 inches of vacuum @ 70 mph with my 224/236. Stock 3.42 gears and T56. It doesn't really lug untill about 1200 RPM.