Thread: Bone stock 2008 Grand Prix (base) 1/4 mile E.T. & MPH ?!?

Yeah that's my problem. I have more cars than some of the salvage yards around here.


That day it only ran a 14.00 @ 99 mph but it threw the belt right off the start. I only got the pone run in and then the event got concelled (rained out) and of course it was the last event of the year!





I do have a healthy big block Dart Sport (original 340 3-speed car I'm currently putting together), but this 1972 Dart is a small block. Though it is supercharged so that helps (when the belt stays on).

Originally Posted by danieldepetro

Yeah that's my problem. I have more cars than some of the salvage yards around here.


That day it only ran a 14.00 @ 99 mph but it threw the belt right off the start. I only got the pone run in and then the event got concelled (rained out) and of course it was the last event of the year!





I do have a healthy big block Dart Sport (original 340 3-speed car I'm currently putting together), but this 1972 Dart is a small block. Though it is supercharged so that helps (when the belt stays on).

Nice belt! LOL Low 14s with no belt, wonder what it would of run with the belt. What compression ratio are you running? What kinda heads/cam? Just curious.

Showing/telling me about these damn Mopars makes me wish I was 16 wrenching on my buddys 72 Road Runner, good times... Lots of trouble....

Wow, I didn't realized I incorrectly spelled so many things in that post.

Anyways, I was really curious too. It runs strong when the belt is on and the blower is working.
The engine is the most basic engine we have actually.
It started as a 53,xxx mile 1974 360 that we purchased an entire truck for (only $200.00). pulled the engine/transmission and put it right in the Dart. We supercharged it and was running it like that until about 3 weeks before we were heading down to the track when our buddy dropped off some extra parts he had (because he just upgraded his 318 again, don't ask!) He brought us a used camshaft which has the 340 specs (.429" lift) with a 114 degree centerline which we wanted for the blower. He also gave us his old double row roller timing set, and a lifter/spring combo. Basically it is built as a high performance 340 would have been from Mopar back in the day, just with the smaller bore/longer stroke of the 360. The compression is the stock 8.5:1. The heads are stock as well. In fact other the the above parts the engine had never been opened up. The supercharger pulley is a 3" and the crank pulley is a 6.75". The carburetor was a standard Holeey 750 cfm double pumper with mechanical secondaries that wasn't really properly set-up for a supercharged application.

Looks like over the winter we'll be building our recently aquired 1968 Dodge Coronet coupe for next year with supercharged big block power!