CLASS RACER FORUM - View Single Post - Ford CJ's and Mopar DP's NHRA is now on the case

Ed Wright · 10-14-2010, 08:49 AM

Let's compare the 5.9L DP & the much maligned LT1 which share the same 275 hp factory rating.
The DP has:
Ten more cubic inches.
One full point compression, 11.57 vs 10.5.
2.02" vs 1.94" intake valves.
1.6" vs 1.5" ex valves.
Much bigger, much higher flowing ports, before porting.
1000 cfm vs 750 cfm throttle body.
Let me make those changes to my LT1 and you won't see me running any tens. You would have to be terrifically stupid to think there is anything right about this deal. You can't blame the guys for having them, but they should not be disappointed when the guys they beat in heads-up races aren't impressed with their performance, or respect their car building ability. It's a so-what deal.
What if guys runs them heads-up a couple hundred lbs light? If you go across the scales 200 light you shouldn't get a hp hit, right? As long as they do get hit, right?

10-14-2010, 08:49 AM	#68
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Ford CJ's and Mopar DP's NHRA is now on the case Let's compare the 5.9L DP & the much maligned LT1 which share the same 275 hp factory rating. The DP has: Ten more cubic inches. One full point compression, 11.57 vs 10.5. 2.02" vs 1.94" intake valves. 1.6" vs 1.5" ex valves. Much bigger, much higher flowing ports, before porting. 1000 cfm vs 750 cfm throttle body. Let me make those changes to my LT1 and you won't see me running any tens. You would have to be terrifically stupid to think there is anything right about this deal. You can't blame the guys for having them, but they should not be disappointed when the guys they beat in heads-up races aren't impressed with their performance, or respect their car building ability. It's a so-what deal. What if guys runs them heads-up a couple hundred lbs light? If you go across the scales 200 light you shouldn't get a hp hit, right? As long as they do get hit, right? __________________ Ed Wright 4156 SS/JA Last edited by Ed Wright; 10-14-2010 at 09:02 AM. Reason: Still can't spell...