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Old 07-21-2018, 09:24 AM   #32
acammer
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Drives: 2011 Camaro 2SS SGM
Join Date: Jul 2016
Location: Weedsport, NY
Posts: 2,982
Quote:
Originally Posted by Camaro Dude View Post
Very interesting...

Very nice, within the context of what you seek.

I catch your drift, not too shabby at all.

3000+ range as you mash it looks 👍🏽

Sorry for going OT in a performance oriented thread, but I have a question.
Judging from the graph, I must ask, how does it feel when cruising in 6th gear @ a 75-77ish miles/h, barely touching 1900rpm if at all, if I recall correctly in mine?
Not off topic at all - you don't get something for nothing. So, my car has 4.10 gears so 70mph is like 2000rpm. This particular cam has 19* of overlap, which is A LOT. So, it's not particularly happy under 2000rpm with the throttle mostly closed, the cylinder see the exhaust port as just as good a source for air as the barely open throttle body, so it's prone to reversion, surge, etc with real light loads. So, light cruising at lower speeds (ie. under 55mph the car really doesn't want to be under 2000rpm. If you've got a load on it, it's nice and smooth all the way down to 1400rpm or so, and it'll pull right back up from that RPM no problem.

To your question, at highway cruising speeds, it's nice and smooth, there is enough aero load to keep the throttle cracked open a little more to pretty much eliminate any little stumbles. As far as the torque/power to move the car, that's a non issue. I can be in 6th at 1500rpm at like 55mph and accelerate, up a hill, no problem. If I have no traffic I often can still cruise in 6th gear in the 55-65mph range, I just roll in and out of it to avoid those spots where the throttle is just barely cracked. It's not a question of power, just smoothness, which is to be expected with such an aggressive cam.
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GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph.
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