1960 283 chevy

goinbroke2 · 02-28-2009, 05:53 PM

Bruce Fulper did a story a few years ago with regards to engine rpm and how quick an engine rev's etc.
It was with pontiac's (of course) but the gist of it was, a bigblock or long stroke/heavy rotating assembly engine rev's up slower than a lighter small block/short stroke/etc. A bigblock that prefers to spin up at 600rpm per second would be quicker with a glide due to less parasitic losses (spinning up the assembly) than a 3spd which would require 900 rpm per sec. A small block however that loves 900 rpm per sec would be slower (or at least not faster) with a glide because it doesn't have the reserve torque.

Veh weight the same, gearing the same, all else the same, a slow reving (reving up) big block is quicker using torque where a quick reving smallblock needs more gears/closer ratio.

More coming back to me...two 455's on a dyno, the newer one with an extra 20hp was actually slower because it was tested at 600rpm per sec and the gearing of the car and the old 455 was set up for 900rpm per sec. The new motor couldn't spin up as fast and was therefore slower on the track.

Speaking of Bruce..anybody heard from him lately? Reading some old BracketRacingUSA mags the other day and came across a couple other of his stories.

Jeff Goss · 02-28-2009, 08:20 PM

Quote:

Originally Posted by goinbroke2

Bruce Fulper did a story a few years ago with regards to engine rpm and how quick an engine rev's etc.
It was with pontiac's (of course) but the gist of it was, a bigblock or long stroke/heavy rotating assembly engine rev's up slower than a lighter small block/short stroke/etc. A bigblock that prefers to spin up at 600rpm per second would be quicker with a glide due to less parasitic losses (spinning up the assembly) than a 3spd which would require 900 rpm per sec. A small block however that loves 900 rpm per sec would be slower (or at least not faster) with a glide because it doesn't have the reserve torque.

Veh weight the same, gearing the same, all else the same, a slow reving (reving up) big block is quicker using torque where a quick reving smallblock needs more gears/closer ratio.

More coming back to me...two 455's on a dyno, the newer one with an extra 20hp was actually slower because it was tested at 600rpm per sec and the gearing of the car and the old 455 was set up for 900rpm per sec. The new motor couldn't spin up as fast and was therefore slower on the track.

Speaking of Bruce..anybody heard from him lately? Reading some old BracketRacingUSA mags the other day and came across a couple other of his stories.

Get on the Pontiac Forums much? Some "questionable" business practices have hurt his reputation.

Too bad, as he was one of the "go to" guys when I started getting into Pontiacs about 20 years ago.

Bruce Fulper · 02-28-2009, 10:08 PM

Yeah, make sure you get your news from a bathroom wall, instead of talking LIKE a man, to a MAN.

I expected more out of you than THAT kind of gossip Jeff.

Ed Fernandez · 02-28-2009, 10:58 PM

Quote:

Originally Posted by Bruce Fulper

Yeah, make sure you get your news from a bathroom wall, instead of talking LIKE a man, to a MAN.

I expected more out of you than THAT kind of gossip Jeff.

Did you ever settle up with Sal Piaccentini?

Ed F.

Jeff Goss · 03-01-2009, 11:13 AM

Quote:

Originally Posted by Bruce Fulper

Yeah, make sure you get your news from a bathroom wall, instead of talking LIKE a man, to a MAN.

I expected more out of you than THAT kind of gossip Jeff.

Bathroom wall? Riiight. I think you made your own bed on this one. No doubt you are great with Pontiacs. That was never the issue.

Sorry you are offended. I just can't believe that ALL your naysayers are wrong. If they are, I sincerely apologize.

As to me being a man, I am a man that would always make good if someone I sold parts to or did work for wasn't satisfied. I am a man that stands behind what I say and do. I am honest to a fault, even if I have to take a loss to make someone happy. I put friendships first over my ego and wallet.

Sorry for derailing this thread.

goinbroke2 · 03-01-2009, 02:10 PM

Wow talk about stirring up a ****storm unintentionally!

No I've never been to a pontiac forum and I've never heard anything negative. I've read lots of his articles and he obviously knows hit stuff.

Speaking of which, Hi Bruce good to see your still around. Was my memory anywhere close to what your intent of said articles was or was I out in left field? LOL! I understand what you were saying, I'm just not sure if I put it as clearly as I could have.

Jeff Goss · 03-01-2009, 02:39 PM

We'll just leave it at that.

I got no dog in this fight.

Sorry Mr. Fulper.

02-28-2009, 05:53 PM	#1
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 892 Likes: 1,624 Liked 392 Times in 153 Posts	Re: 1960 283 chevy Bruce Fulper did a story a few years ago with regards to engine rpm and how quick an engine rev's etc. It was with pontiac's (of course) but the gist of it was, a bigblock or long stroke/heavy rotating assembly engine rev's up slower than a lighter small block/short stroke/etc. A bigblock that prefers to spin up at 600rpm per second would be quicker with a glide due to less parasitic losses (spinning up the assembly) than a 3spd which would require 900 rpm per sec. A small block however that loves 900 rpm per sec would be slower (or at least not faster) with a glide because it doesn't have the reserve torque. Veh weight the same, gearing the same, all else the same, a slow reving (reving up) big block is quicker using torque where a quick reving smallblock needs more gears/closer ratio. More coming back to me...two 455's on a dyno, the newer one with an extra 20hp was actually slower because it was tested at 600rpm per sec and the gearing of the car and the old 455 was set up for 900rpm per sec. The new motor couldn't spin up as fast and was therefore slower on the track. Speaking of Bruce..anybody heard from him lately? Reading some old BracketRacingUSA mags the other day and came across a couple other of his stories.

02-28-2009, 10:08 PM	#3
Bruce Fulper Senior Member Join Date: Aug 2004 Location: So. Cal. Posts: 651 Likes: 4 Liked 54 Times in 33 Posts	Re: 1960 283 chevy Yeah, make sure you get your news from a bathroom wall, instead of talking LIKE a man, to a MAN. I expected more out of you than THAT kind of gossip Jeff.

03-01-2009, 02:10 PM	#6
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 892 Likes: 1,624 Liked 392 Times in 153 Posts	Re: 1960 283 chevy Wow talk about stirring up a ****storm unintentionally! No I've never been to a pontiac forum and I've never heard anything negative. I've read lots of his articles and he obviously knows hit stuff. Speaking of which, Hi Bruce good to see your still around. Was my memory anywhere close to what your intent of said articles was or was I out in left field? LOL! I understand what you were saying, I'm just not sure if I put it as clearly as I could have.

03-01-2009, 02:39 PM	#7
Jeff Goss Member Join Date: Nov 2001 Location: Burlington, WA Posts: 361 Likes: 1 Liked 0 Times in 0 Posts	Re: 1960 283 chevy We'll just leave it at that. I got no dog in this fight. Sorry Mr. Fulper.