[abigassbowtie]

hey tech inspector could you explain the difference between static and dynamic compression I never heard that or tell me a link where I could read about the difference I dont understand it

[ericnova72]

http://kb-silvolite.com/calc.php?action=comp

This is from the Keith Black web site.

[techinspector1]

Originally Posted by abigassbowtie

hey tech inspector could you explain the difference between static and dynamic compression I never heard that or tell me a link where I could read about the difference I dont understand it

http://www.kennedysdynotune.com/Dyna...ion%20Tech.htm

[abigassbowtie]

thats awesome learn something new every day! I really dont know what I am doing building a motor. I just want to know how bad enough I am putting most of my money into this and hope it works with you guys and my machinist's advice I just hope it all works and if not I will learn what i did wrong when I have to tear it apart and fix it Im not good at learning by reading I have to be hands on and I appreciate all the help

[abigassbowtie]

hey tech I found a demon 750 double pumper with manual secondaires for 200 bucks looks new do you think that would work good on my set up?

[techinspector1]

Originally Posted by abigassbowtie

hey tech I found a demon 750 double pumper with manual secondaires for 200 bucks looks new do you think that would work good on my set up?

In my opinion, yes. Most carburetor manufacturers have a rule of thumb that says vacuum secondaries with a stall under 3000 r's, double pumper with a stall 3000 or over. I don't know what converter you're using, but the 750 will work with anything close to that in my opinion.

[abigassbowtie]

my stall is a hughes 3000 seems like it stalls closer to 2500 than 3000 but thats what it was ordered as anyway cool I will buy it tomorrow then thanks alot for advice

[cobalt327]

Originally Posted by abigassbowtie

my stall is a hughes 3000 seems like it stalls closer to 2500 than 3000...

The stall ratings are an estimate- lotsa variables as you know- but Hughes makes good converters, AFAIK.

When you get your engine dialed in and tuned right, you will likely see the stall is much closer than it is now!

[abigassbowtie]

that was with my stall in a th350 and a 355 with flat tops and some stock fuelie heads with 1.94 1.60 a preformer rpm intake and a summit 234-244 488-510 that truck weighed 3650 and was slow as hell I hated it after all the work I did to it. when I got it all it had was the flat tops and heads I put the rest of it on the motor and it only picked up one tenth

[cobalt327]

Originally Posted by abigassbowtie

that was with my stall in a th350 and a 355 with flat tops and some stock fuelie heads with 1.94 1.60 a preformer rpm intake and a summit 234-244 488-510...

Yeah. That combo is WAY down on torque compared to the creature you're putting together now.

Yer in for some fun, now!

[abigassbowtie]

I met some older guys last night that are local drag racers here that say they will show me the ropes and want me to race my truck I also found a 67 nova for sale today for 1500$ I think I might go buy so not its wether I want to put my motor in my truck or in this nova I know the nova will get alot better traction versus the truck and be lots faster but the truck is what I have been working on for long time now hard choice

[abigassbowtie]

oh and I almost made a big mistake on my motor the other day I put my timing chain on and everything with out a cam button and wear plate whoops so I gotta go buy those today

[454C10]

are you using a roller cam? if not, you don't need a wear plate or a button.

And
if you are using a roller cam, then you need to check the endplay of the button to the timing chain cover. furthermore, a regular timing chain cover isn't really stiff enough to hold a roller cam in place

[abigassbowtie]

hey tech I am looking into buying rods and a crank havent really looked at any cranks yet but I was looking at some rods that were decent price they were eagle F5 05 0540 are those any good what I would like to be able to do is spin my motor 8k without worrying I know that is out of my power band but I want it tougher than what it needs to be so any advice on a crank and rods if those rods arent good enough

[abigassbowtie]

got my rockers and stud girdles today (finally) so I got all my parts except my thrust washer so I should have it done in a week or so wich figures cause the truck goes into paint friday or saturday I still gotta pull the tranny out cause there is a broken bolt that holds the filter up I gotta retrieve and replace but its getting there slowly but surely oh yeah I also bought that demon 750 double pump manual secondaries and one more thing I downloaded this comp cams cam quest thing it is basically a dyno simulator and it helps pick out a cam and it picks out a cam one size smaller than what I went with but it says 569-hp and 550-tq that is saying that i have high performance heads but I dont know if that is accurate what do you think would you say performer rpm heads are high performance