Let's assume you've got two big-block Chevys, both with 11.0:1, both with the same solid-roller cam (253/260 at 0.050 on a 111), and both with the same heads, intake, carb, oil pan, and headers. Both
OOOOHH This could get good! Dale Clay BTW I like the new HR format. Let's assume you've got two big-block Chevys, both with 11.0:1, both with the same solid-roller cam (253/260 at 0.050 on a 111), an
Two points - There's a fair difference between a rod ratio of 1.53 and 1.63 and the unshrouding effect of increasing the bore .270" helps the 4.55 bore motor - I'd bet the short stroke motor loses 2%
I will bite on this just to have some fun but you have to send back what you found and why you think it worked that way as well.. I would intuitively guess that the shorter stroke bigger bore engine
David, Here is my guess. Obviously the same camshaft would not be proper for both strokes. I don't even think its the right one for either stroke, but that just my opinion. Both motors would make abo
I'm serious about this study and would like to go deeper. What makes the 253/260-at-.050 cam wrong for both engines? What would be your choice of an optimum cam for the 4.250-inch-stroke engine? How
Well, David there are so many variables and unknowns it would be impossible to do it justice here. And besides I am not willing to write an epistle on the subject. The motors you describe are, mid-ra
You can not make an intelligent cam selection without knowing a lot about the cylinder heads.. so having identical ones is interesting but not quantitative.. There is a big difference between an old
"You can not make an intelligent cam selection without knowing a lot about the cylinder heads (and the rest of the rotating assembly as well).. so having identical ones is interesting but not quantit
Author: Daniel Wright <daniel.wright@genetics.utah.edu>
Date: Wed, 30 Jun 2004 09:40:28 -0600
I ran this information thru the Desktop Dyno computer program. I got the following information, which should be regarded as Desktop Dyno's Opinion. The Long Stroke (LS) version made slightly more to
Author: Daniel Wright <daniel.wright@genetics.utah.edu>
Date: Wed, 30 Jun 2004 10:53:13 -0600
In selecting the unspecified components, such as heads, intake, carb, oil pan, and headers, I made very conservative choices from the basic default selections available.If I swap ONLY the heads I se
555 BBC 4.25 stroke long rod 9.8/1 C/R dart 360 cnc ported heads 2.3 intake hyd roller 240 @ 050 dart single plane intake motec efi msd 7 34 degrees lead 92 octane 750 ft lbs 735 hp