Search results for query: *

The 160 cfm heads made 1.91 hp per cfm on the 306 (306hp), 2.2 hp per cfm on the 333 (352hp) & 2.41 hp per cfm on the 393 (387hp). They all had different cams, got larger as displacement went up which would also be contributing factor. Be kind of like if we did a 318 vs 360 vs 408 with stock...

Would it be possible do an magnum block like this for LA Heads ? Looks fairly straightforward.

Just wondering if anyone knows anything about these PW SBM Head? I'm guessing there just someone else's head rebranded for Canada. Cad there $1,500 bare and $2,500 complete that's like $1,100-1,800 Usd, good thing is I can just pick them up locally. Don't like they flowed it on a 4.25" bore...

I'm wondering what would it take to make a pump gas 365 engine make about 526 lbs-ft @ 4,000 rpm and 514 hp @ 5,900 rpm basically a very similar power curve to the Trick Flow 408 in the dyno graph I'm using as a theoretical goal, doesn't have to use any of the same parts just probably make a...

I'm trying to come to grips with this part of head performance, people talk about velocities a lot when discussing heads, carbs, headers etc... But in an vague abstract way no definitive numbers on what the head velocity is for a given head and what those head velocities will work with (cid x...

That's like your opinion man :) Maybe were looking from the same from you. It's not instance hp cause your not factoring in stroke or displacement depending on the eg.. This formula has nothing really to do with what were talking about lol.

Save the suspense, His answer is port velocity. At 20:00 he gives formulas for velocity, but they don't seem to work.

We generally speak like Low speed torque and driveability is synonyms with each other, I have myself but the more I think of it there seems to be a flaw with this line of thought. A lot of times when we see an upgrade that loses low speed torque the consensus seems driveability will suffer, but...

I bought the CVF V 70's + pulleys and brackets for my 380hp crate in a 68 Valiant, couldn't find the info on their site I'm guessing i need a 70's power steering hose ? And anyone know the belt sizes? i got the underdrive one.

Just curious what would you consider minimum acceptable torque in the 3500-4500 rpm range for a decent street machine ? What would you consider ideal torque in the 3500-4500 rpm range ? And is it possible to have too much torque ? I'm talking in the street not on a track.

The examples he give shows mid torque gains with going with a tighter lsa but was that really even in question ? But to me the gains aren't large enough to say it proves DV's formula, if anything it disproves it cause to me for the formula to be valid being a few degrees off of calculated lsa in...

I'm installing a holley sniper tank and efi, so I wondering anyone bought and used similar amazon hose kit and what was your experience ? Also want to install a regulator that will adjusts from carb to efi psi just incase I need to switch back and forth and anyone bought and used a similar...

Obviously velocity is important but I'm at the belief that the average person doesn't have to much say about it, especially in the Mopar world, we have relatively few choices of off the shelf parts to work with. Most the calculations below are based on cid and rpm, when building an engine...

What average target fps should you be shooting for and how much for different levels of builds like daily driver street to like pro stock? Is there kind of formula or guild or rule of thumb for target fps? So far mainly from Speier Racing Heads that he seem to target 310-350, he stated 350 fps...

This came up on my feed thought might be interesting to some.

The 273 Build That Doesn't Suck Forget The Little Engine That Could. This Is The Little Engine That Does! WARNING: Reading this article might cause you to giggle uncontrollably with excitement. It might lead to sleepless nights and neglected work-hours spent planning your own 273 build. It might...

Thoughts on this porters? Math on velocity, port size etc..

I figured the direction I want to go over the next 5+ years with my car 68 Valiant stock body & interior, I'm keeping it small block want to eventually go high to mid 11's want no roll bar or cage. Want decent streetability be able to go anywhere at anytime. Looking to make peak power around...

Cylinder Head Design - CHP How It Works "A larger valve diameter will almost always produce higher 0.100- to 0.200-inch flow figures, which can be counterproductive to making power. /// For race engines we use larger valves, but are able to reduce the 0.100- to 0.200-inch flow even further with...

W2

I find this guy Eric Weingartner of WeingartnerRacing videos on cylinder heads informative here's two of his latest Is More Flow Better Is The Smallest Intake Port That Flows The Most The Best Mopar heads Trick Flow SBM 190cc cnc Ported Head Review With Real Flow Numbers...

Surprisingly similar builds making 400-409 hp just where you want your hp to peak 5400-5600 rpm or 5900-6200 rpm. Geared right you would have a strong runner either way. 5.2l Magnum heads Mopar 318 Engine - Car Craft Magazine 5.9l 380hp create, Magnum heads 360 Crate Engine Buildup & Dyno -...

Just curious What would your 500 hp combo’s be for a 0.060” overbored 340 block so 4.10” with each one of these strokes 2.96”, 3.58” & 4” and what would your 600 hp combo be for a 4.375” bore 400/440 block with these strokes 3.38”, 3.75” & 4.25” ? shooting for pretty close to those hp goals...

Static and Dynamic Displacement Now these terms are my way of looking at engine displacements and borrowed the static and dynamic idea from CR. Static displacement is the measured displacement of your engine like 225 340 440 etc… Dynamic is what your engine can displace “Cfm” at rpm...

I keep hearing displacement makes power but don't see how so my question Is how? But let me clarify what I mean, I understand if you raise torque at any Rpm at that rpm hp will also raise. Torque is obviously heavily related to displacement If I was to say I'm gonna build a 440 without any...

Interesting test.

Show's why a midrange cams 210-220 are good choice for the street, and why a 350 Chev is a turd of an engine :) Engine Camshaft - Test, Comparison Review - Hot Rod Magazine

I want to show how these are interrelated, this ain't meant to be best way and is obviously theoretical, in the real world there's so many variables so here most everything is assumed to be same VE% and efficiency. First off need to define hp, most here seem to think torque and hp do two...

Richard finally playing with a magnum