You weren't insulting my intelligence at all. I never got mad either. It looks you are the one that had their feelings hurt. I kept ranting about airflow, becasue in general (as mentioned in this thread) diesel's have an abundance of fuel. And we all know that in a diesel, it is MORE important about the fuel than airflow. Yep, FUEL is more important in a diesel than airflow. All I simply said (and I don't think I really need to repeat myself again, do I?) was by IMPROVING airflow is impossible to make less power. I was NOT trying to sound like Mr. Power. I jsut made a simple point, a simple statement is all. And when it became clear that some people did not beleive what I was saying I felt it was necessary to let people know that I am not just Joe Schmoe talking out of my ****. That is why i waited until 3 pages into the thread to mention anything of the sort. Not bragging or anyhting. I NEVER said I know every fact about people trucks. I don't have to. I do know about motors, and you can take Mr. 4 cylinder 81 HP or a 1000HP CTD, and teh theory is the same. Improve airflow, make more power. And if you feel the need to post before you make changes that may question my wits (as you put it) by all means do so. I have not insulted anyone or their combination, nor singled out any one combination. I am talking about EVERY motor ever made. And yes, I did have a 7 sec Pro Mod, and yes it was nitrous with "old school" carb technology. But my theory applies to that motor the same as a turbocharged diesel, HOWEVER, airflow is more critical on a nitrous motor. A turbo motor is more receptive to volume becasue the turbo is just cramming air into the motor, and des not really care HOW it gets there, as long as it gets there. My nitrous motor was more picky about airflow. It is not crammed in like the turbo motor, it flows into the motor, and nice pretty, soft, gradual, turns is what it likes. It is more worried about the velocity than the volume (even though you need both of course). Turbo motor, under pressure (boost) Nitrous motor NOT under pressure (no boost) so Turbo (pressure) motor likes volume (not saying velocity is not important, just not AS important) and Nitrous/Naturally apirated (no pressure) likes velocity.


If we take "x" motor and it makes less power with "new and improved" parts (ported heads, bigger intake, etc...) than those parts did NOT improve airflow. That is all it comes down to. Heads were ported not to the motor's liking. Intake had a path the cylinder heads runner that the motor did not like. Whatever. It just did not improve airflow, period. So, the motor that made more power with the stock head over the portd one, all that means is THAT ported head hurt airflow. Does not mean ANOTHER head ported ANOTHER way would make less power as well. It may make the same as a stock head. If so, you try another one until it DOES make more power, and trust me, you WILL eventually find one. Follow me? Do you know how many set's of heads we put on the 632" BBC trying to gain an extra 10, 20, 30 HP? Ten sets. We tried 10 sets of heads. From different makers and models to different porting on the same make/model head.

Not meant for this to me a pi***** match. I was jsut trying to make my point. ANd now that someone knows that a particular head does not make more power than the stock one, does NOT mean there is not a head out there that will make more. Whew!!!!

 

[QUOTE=RoadRacer;1689548]

COOL!!!! Robert Morris is the name of my Dad, not sure on teh car/driver. I will ask my Dad later on when I call him and get back with ya. Houston Engine and Balancing did the machine work on their motors. Pro Stock Vega, Big Block Chevy. Their "claim to fame" was in Gainesville in '77 or '78, maybe even '79 (I would have to ask him for sure) was making it to the Semi's I believe (if my facts are right here) they were taken out by Glidden in the Semi's. I am a HUGE Hemi fan, especailly the 392 vintage. I would LOVE to build a Rat Rod, ANY Rat Rod with a blown 392, backed by a 4 speed, YUMMY. And teh fact that you ran S/S with the 426 Hemi's (Dart or Barracuda?)OH BOY.....hijack thread or not, that is good stuff!!

 

[QUOTE=RoadRacer;1689548]

They are right next to the muffler bearing and headlight oil

 

Shimming will help stiffen the spring, but is just a band aid for a flesh wound (or at least a real nasty ant bite) i didnt really get this statement ,i was thinking a properly shimmed spring would work as well as aftermarket

 

Oh, I'm sorry. I misunderstood you then My bad. No, a properly shimmed spring will not work as good as an aftermarket spring. Shimming the spring is just a "band aid" for what really needs to be done, which is replace teh spring. Not saying shimming won't work, because it can. But is not the prper way to do it. As long as you are not altering valve lift/duration, you should not have any real concerns shimming the spring. But, you do have to be careful, and check for coil bind AFTER it is shimmed. I will not act like I know what the seat and open pressures are on the CTD valve springs, along with installed height. I have no idea, never checked into teh CTD valve spring. Shimming the spring raises the pressure, allowing for more control of the valve, or I should say allowing more RPM before the valve goes into valve float. BUT, the thing is this: When shimmed, you close the gap between the coils, and if you DO go into valve float, you have a better chance of cracking the spring becasue more than likely the coils will hit one another and break, and then you drop the valve into the cylinder, and I think we know what happens next. Valve float is the inability to control the valve. IN other words, the valve spring can not control the up/down motion of the valve as the spring loses control, and allows the valve to bounce around on the seat. So, when shimmed, you lose some installed height, making the spring shorter, and if shimmed too much, spring goes into coil bind, and that is bad.


ON edit: Some machine shop will shim a "weak" spring when it gets tired, so that you do not have to replace all the springs. And it is also common to install shims anyway on even new springs when it is found out the seat or open pressure is not enough. But, we are talking about shimming to gain a few RPM's in our motors, and that is a band aid fix. So, the pracitce is a common one, but once again, a band aid.

 

Have you asked Don about sacked out springs in 20k?

That seems...WAYYYYYYYYYYYYYYY to quick.

 

And THAT is another reason that I have not gotten to

When shimmed, you are adding pressure to a spring that was NOT designed for teh additional pessure, and hence, gets tired/weak quickly


ON edit: For some reason, when I type, my "THE" comes out "TEH" all the time

 

SSminnow, I don't doubt you know about airflow.. With what's available in the diesel world, large gains aren't seen with a ported head or cam.. In fact, some have lost power going to an aftermarket cam. I have spoke to people that have lost power with the Maxspool and the F1 cam. I have also spoke to people that have picked up a few hp and improved their power curves throughout the rpm range with them. You seem talented with gas motors. Just remember they are different animials and the theories don't always work the same with the products currently available. This is in no way intended to bicker with you. You've shown some impressive engines. I've now been playing with diesels for 8 years.. I was also into gassers until the diesel bug hit.

 

[QUOTE=SSminnow;1689577]Well don't know when and where to start.Never ran the Hemi Cuda,Dart,or the Challenger,I had a 62" 413 MW and then they called it SS/SA,because the rest of the gang didn't have anything to keep up.Then had a 65 Coronet 330 Hemi,ran it in SS/BA,and a real killer 69 Coronet 440 Street Hemi,that was a real cheater.Ram Charger equipped and all that stuff.H-ll even ran a 65 Goat,pushed started the Wynn's Jammer,Had a 331 Hemi digger,671 huffer,kept the car and just started working my way up to a .060 over 392 with Ed Pink innards,and the rest was KB with an old rebuilt 671 I got from a really big Hero of mine that lived in Occala.Never ran nitro,back in those days it was nothing to push off,hit the mag switch and the whole thing went kabom. Last time I talked to Bob Mr.Ford Glidden was at the spring nationals at Columbus.Crap I was at the first ever Big Go South the had at the then brand new W.Palm Beach ISW.

Just wish I had all the money that I spent on tires and fuelJeeeze I could go on for hours talking about the old days.Heck fire my 1st cuz was the first President of the Richard Petty Museum,That would be Cille Ann McKenzie,married to big John that owns Motor Sports Design that makes most of the decals for Nascar.UGH sounds like I'm going off the deep end.

BTW thanks for the heads up on the muff bearings,that's where they wereThe Professor sucks,never did like him.

 

i think i'm going with F1s how much am looking at? i haven't had much time to call around.

 

No,.. haven't talked to Don about it. I'm not sure what constitues "sacked out",.... I was surprised when I was told about the .025. Good idea Cq,.. I'll try to get one of his guys to contact him for me.

 

With a turbo motor (as I said above) the gain IS minimal with a ported head. I think we will just agree to disagree, as I do not think my point is getting across What I will do is say what I mean, then nothing after that All i said was if you improve airflow, you can't lose power.



We are not bickering either (at least I am not) we are just having a discussion is all, one that just so happens that we are not seeing eye to eye on.

 

I think 625ish was the last I saw

 

[QUOTE=RoadRacer;1690588]


Man, you must be OLD JUST KIDDING!!! Seriously, that is good stuff though. You had a digger? Man oh man, you lucky DOG! That is anotehr love of mine. All the old school digger/floppers blown Hemi's....ALL RIGHT!!!! I do want to put together a car w/ a blown Hemi on nitro to make a pass in. Will never happen, but I can dare to dream

I do have to ask about the Coronet 440 "street hemi" Are you saying you dropped a street hemi into a 440 Coronet, or are you calling teh 440 a street hemi? As, from the sounds of it, I know you know there is no such thing as a 440 Hemi....so, you were either testing me to see if I caught it, or I jsut misunderstood it.


The 65 330 is a cool car...love the 50's into late 60/early 70's stuff!

Also, it sounds like you said you still have your digger???

Money on tires and fuel, I'LL SAY!!! I would have a small fortune if I could have that money back myself

Yeah, WJ is a you know what, for sure


I called my Dad, left him a message, he should call me back tomorrow, and I will get the name of the Vega they ran, and teh owner/driver name as well. That would be pretty cool if you knew or knew of them

 

Yeah 426 was the largest(Mopar) Hemi I believe. The 440 was a pulling engine.