Cam opinions 418

[Johnny Mac]

I own the magnum that was tested on the engine masters show. It’s a basic 300hp mopar crate engine with a bigger comp cam. On that engine the RPM air gap was tested against an M1, and the air gap was better every where.

M1-350hp, 409tq
RPM AG- 361hp, 423.3

View attachment 1716330626
View attachment 1716330631

Thats really cool to know, and very cool data! I have no issues with the airgap. I would love to do a comparison with a victor, and an airgap when we start playing with our new heads. Your data is a great point. It's funny, some engines just react differently than you'd expect. On a run of the mill 383 chevy, some guys wonder why we don't run a big ol airgap, instead of a "performer ish" dual plan, short rise. And in THAT case, for whatever reason, a low rise dual plane with no airgap, is within dyno variance. of an airgap, or even a single plane.

I remember testing air filters, playing around, and one of our customers really liked this little "stelling and helling" round air cleaner that was "famous" on old ford FE engines, especially in cobra kit cars. That green, lawnmower looking, foam filter, scrubbed something like 50 HP off of a 427 ford stroker, based on a windsor. i always enjoyed the engine masters series. And i admit i wasn't always right in my guesses. i remember buying new headers on a 318 car b/c they had a flat spot on the bottom.....then 20 years later i watch engine master smash tubes flat, and lose almost nothing .lol

 

[4eighteener]

Thats really cool to know, and very cool data! I have no issues with the airgap. I would love to do a comparison with a victor, and an airgap when we start playing with our new heads. Your data is a great point. It's funny, some engines just react differently than you'd expect. On a run of the mill 383 chevy, some guys wonder why we don't run a big ol airgap, instead of a "performer ish" dual plan, short rise. And in THAT case, for whatever reason, a low rise dual plane with no airgap, is within dyno variance. of an airgap, or even a single plane.

I remember testing air filters, playing around, and one of our customers really liked this little "stelling and helling" round air cleaner that was "famous" on old ford FE engines, especially in cobra kit cars. That green, lawnmower looking, foam filter, scrubbed something like 50 HP off of a 427 ford stroker, based on a windsor. i always enjoyed the engine masters series. And i admit i wasn't always right in my guesses. i remember buying new headers on a 318 car b/c they had a flat spot on the bottom.....then 20 years later i watch engine master smash tubes flat, and lose almost nothing .lol

I am sure I have seen 5.9mag's engine as i tend to have a mopar algorithm on YouTube and seen most episodes of EM.
I also saw that header smashing episode and was shocked by the lack of hp loss. Probably more critical on the intake side as your filter tests indicated.
I use the k&n filter with the filter top as rumble suggested yesterday. Hopefully that doesn't restrict too much

 

[TT5.9mag]

Thats really cool to know, and very cool data! I have no issues with the airgap. I would love to do a comparison with a victor, and an airgap when we start playing with our new heads. Your data is a great point. It's funny, some engines just react differently than you'd expect. On a run of the mill 383 chevy, some guys wonder why we don't run a big ol airgap, instead of a "performer ish" dual plan, short rise. And in THAT case, for whatever reason, a low rise dual plane with no airgap, is within dyno variance. of an airgap, or even a single plane.

I remember testing air filters, playing around, and one of our customers really liked this little "stelling and helling" round air cleaner that was "famous" on old ford FE engines, especially in cobra kit cars. That green, lawnmower looking, foam filter, scrubbed something like 50 HP off of a 427 ford stroker, based on a windsor. i always enjoyed the engine masters series. And i admit i wasn't always right in my guesses. i remember buying new headers on a 318 car b/c they had a flat spot on the bottom.....then 20 years later i watch engine master smash tubes flat, and lose almost nothing .lol

Devin @70DusterDev has a turbo LS in his duster and is up near 800hp and one of those stupid little green filters cost him a bunch of power when it was right on the front of his turbo. I don’t want to quote his numbers for sake of being wrong but it was a bunch. Hopefully he chimes in.

 

[Johnny Mac]

y

Devin @70DusterDev has a turbo LS in his duster and is up near 800hp and one of those stupid little green filters cost him a bunch of power when it was right on the front of his turbo. I don’t want to quote his numbers for sake of being wrong but it was a bunch. Hopefully he chimes in.

ya the engine master episode with air cleaners was cool too. the BOWL..lol

 

[TT5.9mag]

y

ya the engine master episode with air cleaners was cool too. the BOWL..lol

My girlfriend told Brule, Frieburger, Dulchic, and Troy that she’s taking the salad bowl. But they all have to sign it. Every time she sees Troy she reminds him that it’s hers.

 

[sireland67]

I still cannot get over the 3.23 gears and 33"' tires, I know its flat in FL but just damn, lets cripple the poor old Ram some more.

I have a 47 Dodge truck on a 74 Ramcharger frame, taking the 1/2 ton 3.55 gears and 28"" tires off and adding 3/4 ton axles changing the gears to 4.88 and 33" tires.
Most likely will go up in tire size, fenders being the limiting factor.

 

[junkyardhero]

I still cannot get over the 3.23 gears and 33"' tires, I know its flat in FL but just damn, lets cripple the poor old Ram some more.

that's about equal to 2.45's and a 26" tall tire, but having to turn way more weight.

probably hums along nice on the freeway tho

 

[4eighteener]

Just an update,
I got the cam recommendation in from Jones Cams (attached), and it is very similar, almost identical to the Howard's cam selection they gave me.
I received the Howard's cam already from summit, so that is what I will use.

 

[74 Cuda]

What are the Jones Cam specs?

 

[4eighteener]

What are the Jones Cam specs?

The Jones Cams specs are listed above. The howard cam specs is attacked.

 

[PRH]

I’m only seeing the Howard’s cam…….twice.

 

[4eighteener]

I’m only seeing the Howard’s cam…….twice.

You are correct, I went to two different howard emails.
Here is Jones attached;
Same duration at .050, but 110 lsa, and more lift

 

[4eighteener]

Actually, 114 lsa, ica of 110

 

[4eighteener]

I still cannot get over the 3.23 gears and 33"' tires, I know its flat in FL but just damn, lets cripple the poor old Ram some more.

I have a 47 Dodge truck on a 74 Ramcharger frame, taking the 1/2 ton 3.55 gears and 28"" tires off and adding 3/4 ton axles changing the gears to 4.88 and 33" tires.
Most likely will go up in tire size, fenders being the limiting factor.

Actually, it pulled very well for the short time it was running. Crippled is not a word I would use.
The tires are pretty short by jeep standards, and i do not plan on cutting bodywork for anything taller, so this is it. Maybe your 47 truck bodywork will allow taller than mine.
A lot of jeeps out there with factory 35" tires and an inline 6

 

[4eighteener]

So, I took the advice offered here and broke down black Friday and bought an rpm air gap, and a avs2 800cfm on sale. They both went down to the mid $300 levels instead of the $400 + change.
I will start on rebuilding it after the holidays. The only thing needed in addition is the ac brackets that rumble linked to, a shorty Sanderson compressor, and to have the ac system evacuated and charged.
Since then, I found and bought a old torker 2 (low rise single plane) off of marketplace for $40.
This already has tbe offset gooseneck like the performer, so no additional brackets or ac required work to run.
The only thing I found was an article from dulchich comparing the two manifolds saying the torker 2 gives up 15 hp below 4500, and get it back and is ahead 15 hp by 6500.
My engine will never see that highside, but is that 15hp down low worth the addition costs (approx $650 + the $369 manifold) or should I send the rpm back and save the $369 bucks and hopefully never notice the loss?
Opinions?

 

[Demonx2]

Thats really cool to know, and very cool data! I have no issues with the airgap. I would love to do a comparison with a victor, and an airgap when we start playing with our new heads. Your data is a great point. It's funny, some engines just react differently than you'd expect. On a run of the mill 383 chevy, some guys wonder why we don't run a big ol airgap, instead of a "performer ish" dual plan, short rise. And in THAT case, for whatever reason, a low rise dual plane with no airgap, is within dyno variance. of an airgap, or even a single plane.

I remember testing air filters, playing around, and one of our customers really liked this little "stelling and helling" round air cleaner that was "famous" on old ford FE engines, especially in cobra kit cars. That green, lawnmower looking, foam filter, scrubbed something like 50 HP off of a 427 ford stroker, based on a windsor. i always enjoyed the engine masters series. And i admit i wasn't always right in my guesses. i remember buying new headers on a 318 car b/c they had a flat spot on the bottom.....then 20 years later i watch engine master smash tubes flat, and lose almost nothing .lol

Hey Johnny...if you ever do that comparison on a 408, try the Super Victor vs the RPM Airgap. You might be surprised!