Thread: My new baby arrived today

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Originally Posted by Hot Rod Nick

damn 10.8 @ 132 is serious! ...at least in my book. I think with your much lower weight and equivalent power I can't expect an et like that.

My ET calculator says with your 550 hp in a 2400 lb car you should turn a 10.3 traction and launch permitting. I ran the 1/4 with the 355 that produced 386 hp. I haven't run the G-Tech yet on the new 427 but the calculator and G-Tech have always been very close. The calculator says a 9.7 with the 526 hp 427.

I don't have a G-Tech, Bob. I doubt I'd get one since basically I don't care enough. It is what it is and if I can weasle an allowance to hit a drag strip I'll find out. Otherwise, if/when I let me sensibilities slip and dice it with somebody on public roads, I'll report the outcome.

I did ask my fabricator buddy who has built some racecar chassis and cages/roll bars to think about what a removable rules-compliant roll bar would look like.

I think I have "apps" on my iphone that can give me G-Tech type info. One is "Harry's Lap Timer" and I just looked at that and it seems to do all that's required. I also have Bosch "Light 'Em Up Dyno" but I'm not sure what it can do.

Your right, apps on your smartphone will do the job, all that is needed is a precision accelerometer and GPS which most all smart phones have. I bought my 1st G-Tech back in 2000 when I was ramping up the power on a powerstroke diesel in my 8000 lb truck. Too hard for me to feel a 10 hp increase in such a heavy vehicle but the G-Tech could feel it. I later started using it for cornering Gs to find the limits of my cars. 2007 Mustang managed 0.84 G before rear end was sliding, Corvette got to 0.93 G before getting loose, and the Track-T I'm not sure but have recorded 1.02 G in the same corner but at that force the speed is so high that I might not be able to stay on the road when it breaks, so need to get to a deserted parking lot to find the T's limits.

Scott Shafiroff made good on the repair bill. My hopes are that the rest of the build was up to his standards and gives me years of trouble free service and no more leaks.

That's great news, Bob. I'm glad to hear Shafiroff stood up for their reputation since I like their stuff.

Don't think that new Shafiroff 409, which is really a 509, doesn't make me drool.

Yeah, I've seen it on their site. Folks are age drool when we see those scalloped valve covers and flash back to the Beach Boy's little ditty......." She's real fine my 409".

I like the fact that they kept the 409 flavor of big grunt factor in the lower rpm band. 509 hp at just 5200 and 525 lb/ft at just 4000. If Scott could have produced these numbers in the 427 mouse I would have gladly given up the 17 hp and 31 lb/ft to have my peaks at 5200 for hp and 4000 for torque.

Bob, I know tuning is a major variable, but your 409/509 comment reminds me of "there's no replacement for displacement" and the 509 is significantly bigger than a 427 "sbc" so I'd expect better low end grunt. For my own build, I didn't want to cram a big block into my roadster and lose the possibility of putting the louvered side covers over the engine bay.

As far as comparisons to original 409's, I've never personally owned one but I'm under the strong impression that motor was no where near as much "high performance" as our 427's are today.

Now what appealed to me was the 427 aluminum block options but when I called Shafiroff and talked to somebody they told me the weight difference was less than 200 lbs., I think they said 160 lbs., and that wasn't worth the cost difference to me at this time.

I posted over 100 pics in the lounge section of my visit yesterday to the Northeast Rod & Custom show and there were a few real 409's drawing awe and attention.

The aluminum 427 was for automatics only. The 409 is much better off idle to 2000 than my 427, I don't know about yours.

I'm sure my brain could be off target on this but I figure if I'm at 2000 rpm I'm probably asleep at the wheel...though I realize with your better trans gearing you cruise at low rpm's.

Check out the video I posted to your thread A log of my updates on my '32 Brookville highboy that is my mild mannered 383 doing a rodeo. Notice my speed just above idle in reverse? I'm geared so tall could probably do the speed limit in reverse.

I haven't used the GoPro for ages. Somehow the video was upside down, after converting, lost all the details in the shadows, plus when I slid it into one of the mounts for being right behind the windshield, I messed up and the case was lightly touching the windshield, thus a lot of audio racket. I'll clean up my act for future videos, but I wanted to beat Nick for getting one posted. Didn't go near deep enough into the throttle on the passes to open the secondaries. Not bad for 1/2 throttle or less.


Above was the 427, below is the very mellow 383 with 207 less ponies.

Nice vids, Bob! I can't get the full impact right now since I had to turn the volume all the way down so my fellow workers don't realize I only care about hot rods. But when I get home tonight I'll play it back on widescreen and full sound system capable of simulating earthquakes, tsunamis, and 427's

When will a break in the weather happen for you Nick? I'm sure the folks here are more interested in your first drive with the 427 than my little romps.

I will continue to enjoy the vids of your romps, Bob.

I'm anxiously awaiting my own opportunity to go out romping around. I think I'll be able to hit the road by this weekend since weather is supposed to be very nice, up near 519 degrees Rankine. If my bomber seats aren't done, we have a back up plan to put the bench seat back in for the weekend.