I've heard this before but I don't get it. Can someone please explain this to me? I don't understand how a smaller bore TB increases performance. I'm not trying to be facetious or sarcastic in any way I assure you. I'm guess I'm missing part of the story or something.RonP wrote:It has raw, crisp power off the line largely due to the 2.5/2.8 intake
Nice explanation. Also worth mentioning are some of the other Hartge factory H5S package goodies that make it so quick: the ported & polished intake manifold matched to the head, the oversized valves, the 282 cam, the 10:1 compression, the CR box... it all adds up to one fun car to drive. I swear it's quicker than my M5. Hell, I could peel out in my '83 H5S even with it's 3.07 diff. Also, an interesting thing happens around 90 mph in these cars, you kind of feel a noticeable "click", kinda like a turbo has just kicked in - you're at 110 in a blink of the eye. And they're stripped-down light! These cars are ticket machines. Good luck keeping it under the speed limit!mooseheadm5 wrote:Smaller diameter runners increase flow velocity at low RPM, which tends to shift the torque curve lower. Short runners of large diameter (think S38) have low velocity flow at low RPM, which tends to cause poor charge mixing and cylinder filling, which shifts the torque curve higher. Cam profile and timing affects this as well.
Wow, all this with a smaller bore piston huh?Minotaur wrote:Nice explanation. Also worth mentioning are some of the other Hartge factory H5S package goodies that make it so quick: the ported & polished intake manifold matched to the head, the oversized valves, the 282 cam, the 10:1 compression, the CR box... it all adds up to one fun car to drive. I swear it's quicker than my M5. Hell, I could peel out in my '83 H5S even with it's 3.07 diff. Also, an interesting thing happens around 90 mph in these cars, you kind of feel a noticeable "click", kinda like a turbo has just kicked in - you're at 110 in a blink of the eye. And they're stripped-down light! These cars are ticket machines. Good luck keeping it under the speed limit!mooseheadm5 wrote:Smaller diameter runners increase flow velocity at low RPM, which tends to shift the torque curve lower. Short runners of large diameter (think S38) have low velocity flow at low RPM, which tends to cause poor charge mixing and cylinder filling, which shifts the torque curve higher. Cam profile and timing affects this as well.
Regan,Did you recently order these fender liners? To the best of my knowledge, the replacement parts are still black. The grey liners are period correct and NLA--great attention to detail here. If you ordered a set recently let me know as I want them!
I noticed this too. I replaced mine relatively recently as the grey ones were all broken and cracked/split. I was stoked to find the replacements being black instead of light grey.rcbmw wrote:Did you recently order these fender liners? To the best of my knowledge, the replacement parts are still black. The grey liners are period correct and NLA
took care of that toobkbimmer wrote:My shot would'nt have been from the camera
hooked it all up yesterday. as far as i know, it hasnt been tested yetjapandrew73 wrote:There's that look. Ron, did you get my email with instructions for running the washer tubing for the headlamp cleaning system? Just run the tubing, and the wiring loom, and them simply plug everything in. It should run correctly. Let me know how it works out
