Turbo boost and low gearing question
Turbo boost and low gearing question I knew this would happen, but not sure why this happens? My car as an example, M6 4:10's. First gear, I get NO boost, Second gear I get 5 PSI then it stops. Third gear and up I get 8 PSI. What is actually happening to cause this?
I think it can't stay in gear long enough. Too fast thru the gears. Most turbo cars I hear like 3.42 and maybe even less.Would think 3.73 is about highest person would want to go with turbo car.
Yep thats about right I think. I plan on 3.50 I think in my 9 inch ford rear end. I wonder how bad 3.73 would be also as off boost the 3.73 is nice.Course since going to a 408 or 427 over the 346 less gear will likely be more than fine as torque goes up in a bigger motor.
For you though think 3.73 or 3.42 would be best.
For you though think 3.73 or 3.42 would be best.
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Originally Posted by zapp168
I think I am going to run 3:73 as I like the around town driveability.
Originally Posted by Pro Stock John
Where do you shift at zapp, 6400?
Originally Posted by Slowhawk
3.42 would be better. 8lbs? no wonder it is loading up when it was tuned off 4-5lbs.
I know we tuned the car for 4 PSI, but there are issues with the car! It was faster around town before the tune, and Now the car bucks at 1500 RPM so bad that I have to put in the clutch, I am getting about 13MPG shooting 1 foot flames out the tailpipe on decel, and it falls on it's face at 3500 RPM's. Ya I will take blame for SOME driver error, but other people have driven the car and in the car have asked where the low end went. I have mentioned there are issues, but you kinda ignore it. So I guess I can come down on dyno day and pay more money and ask you again pretty please to take a look at this. If it is the car fine, I will fix it, but I am getting tired of running in circles.
