how high could you rev a d series motor if every thing was balanced and blue printed inside the block

thanx josh

 

what kind of valvetrain? this is mainly what determines your redline.....

 

cams STRENGTH of valve train and rotating assy balance are all factors in redline !

a cam can only rev so high and the spring can on return so fast before you get terminal velocity and it floats a valve and says bye bye !

internal balance consists of : Crank, Crank Pulley, FLywheel, ROds, Pistons. Weighted and Spun to balance everything is matched to the lightest component.

Head Basicly is stronger valves springs to can spring at the rate of the cam and RPM of the Bottom end. Your RPM is determined by the Speed your internals can spin and they themselves can rech terminal velocity but usually never does you usually get something coming apart due to vibration or imperfect parts.

 

before integra nem says WHY are cams a factor well cams actually determine your powerband. If you rev it to iunno 8k and then if you rev it to 9k youll see a drop in power due to the cam the cam grind is specific in RPM. if your engine is turning at 9k rpm and your cam highend power is at 8 the cam and valaves cant increase in speed or frequency of the opeing of the valves then you dont get enough air and then you start loosing power or it stays the same. So reving higher doesnt always mean better performance unless you build it to rev that high for a reason. Longer duration cams can rev higher and longer than short duration and hihe lift cams. make since ?

 

i said VALVETRAIN which includes the cams.....this is maInly what determines redline although there are other elements of which you've convered. obviously you don't give others credit for what knowlege they may have.....don't go assuming things.

 

lol valve train doesnt include cams ! you think when you buy a valvtrain kit for a LS1 you get a cam ? noooo When you buy a cam they give you an upgraded valvtrain to supportthe cam a camisnt part pf the valvatrain the springs retainers and valves make up the valve train Hondas just happen to have the cam right on the valves ! unlike domestic style cars. Quad 4's had seperate towers for the cams and had hydro lifetrs when you buy valvtrain kits you got valaves and sprinsg with retainers no cams !! So no you wer wrong i just wasnt gonna be an ass about it. Just like saying you dizzy is part of your valvtrain only causes it conected but its not.

 

not to take sides but in a general since the cam or cams are part of the valvetrain. just because it is not attached to the valve doesnt mean anything. it still accuates the valves . if you buy valves they dont come w/ the springs and retainers but they are part of the valve train as you stated. i dont even see why this is being argued over?

 

because technically a cam isnt in the valvtrain is connected to the valve train via pushrod/lifters you remove a head on a LS1 to replace the valvtrain te cam stays in the engine hondas just have them intergrated into the head alonmg with te valves hince DOHC.
You can say they are part of the valve train but they arnt they just actuate the valves that are in the valve train. no arhuement i was just explaing what involves rasing your rpm and why things in the head affect this as well as the bottome end compnents.

 

so how high can i rev the motor excluding the head.

 

depends. when you get them balanced they wil tell you what theirlimit is. I had mine balanced to 9k rpm they shaved to within grams of that. theres no need to go any higherthan stock if you have stock cams you wont gain any more hp. and you might not have a tall enough gear. Higher isnt always better. My Z24 with a redline of 6k rpm would pull harder than any honda with a 9k rpm redline. it just has alot pf factors involved. i cansay balanceing willmake it rev faster and safer and be more stable at higher rpms. gaining you power throught your powerband. just nothing past what the cams are designed for.