First passes with the 514

tfsbbf466 wrote:I changed the converter first then the cam.

Crank is cast

How was the track prep and air temp after the converter change as a comparison to when you ran it after the cam change ?

Did you jet the 850 after converter and cam change?


By reading your build I maybe over carb'd for my 466 and my 393W.

Thanks

whitefield wrote:

tfsbbf466 wrote:I changed the converter first then the cam.

Crank is cast

How was the track prep and air temp  after the converter change as a comparison to when you ran it after the cam change ?

 Did you jet the 850 after converter and cam change?


  By reading your build I maybe over carb'd for my 466 and my 393W.

 Thanks

The nights were similar and it hooks everytime so that is a non issue. It lost .10 with the tighter converter but gained a mph. Cam swap at first didn't pick up so I tightened the lash and switch my motor and nitrous pumps bc I only had a blue pump running the motor and it picked up almost a tenth and 2mph over my best. Nitrous times picked up even more which made me way happy. When I went from the 73 to the 82 jet I gained less the 1 tenth a 1mph so I assume the carb and or headers are still holding me back some.

tfsbbf466 wrote:

whitefield wrote:

tfsbbf466 wrote:I changed the converter first then the cam.

Crank is cast

How was the track prep and air temp  after the converter change as a comparison to when you ran it after the cam change ?

 Did you jet the 850 after converter and cam change?


  By reading your build I maybe over carb'd for my 466 and my 393W.

 Thanks

The nights were similar and it hooks everytime so that is a non issue. It lost .10 with the tighter converter but gained a mph. Cam swap at first didn't pick up so I tightened the lash and switch my motor and nitrous pumps bc I only had a blue pump running the motor and it picked up almost a tenth and 2mph over my best. Nitrous times picked up even more which made me way happy. When I went from the 73 to the 82 jet I gained less the 1 tenth a 1mph so I assume the carb and or headers are still holding me back some.

Dang it man !What have you got for traction ? That's turning it up and turning it on !   

The cam change will show even more when you get the carb and headers right............... 

whitefield wrote:Dang it man !What have you got for traction ? That's turning it up and turning it on !   

Thanks man. Suspension is pretty simple. Lowered I beams up front with stock coils and 90/10s. Stock leafs with the rear on top of springs with caltrac bars and I have the rear shocks mounted behind the rear. Cheap Rancho single adjust.

I wanted to do a carb before the years up but I need to get my daily driver fixed. I've been driving this truck daily for the last 3 months. I'll be happy with another 9 second pass to back it up. Next year I'll make some changes.

tfsbbf466 wrote: I've been driving this truck daily for the last 3 months.

That's great that you can do that. What kind of mpg does it get, just out of curiosity?

Nastynotch wrote:

tfsbbf466 wrote: I've been driving this truck daily for the last 3 months.

That's great that you can do that.  What kind of mpg does it get, just out of curiosity?

Never really checked but it's not good lol. Luckily I don't have to drive it too far on a regular basis. Definitely isn't my first choice for a daily but it does ok and cruises nice on the highway with the tighter converter, 3.70s and a near 30" tire.