here's the whole encharito:
i don't know why it shows as out of stock because all of the individual components are in stock.
Performer 318/360 intake
- Thread starter cudabob
- Start date
-
here's the whole encharito:
i don't know why it shows as out of stock because all of the individual components are in stock.
TT5.9mag
Two atmospheres are better than one
So you make a ridiculous claim and I’m supposed to do the research? Nope. You can do the work to (dis) prove you own ramblings.
me: makes auspicious claim with zero evidence, substantial or otherwise.
my response to anybody asking for a shred of evidence: dO tHe rEsEaRcH!!!11
never change FABO, stay golden.
TT5.9mag
Two atmospheres are better than one
Help us all out. Most of us haven’t done the research that you have for one reason or another.
Start a thread and post up your research so the members can benefit from your experience.
It sounds like you’ve spent a lot of time accumulating your data. Sharing it with the forum would afford us the opportunity to experience what you have achieved.
Last edited:
Woody500
Well-Known Member
Exactly the response I've had before. Do your own research you lazy asshole.
Last edited:
This thread has kinda gone off rails here. We were discussing the Performer manifold and benefits of porting to the 360 size. I was surprised at a HotRod article about the regular performer keeping up (sort of) with an RPM manifold. So I guess after summing up everyone's responses. Yes, port your manifold if you want to if it's already off the engine and you have the time and means. It will be better than it was but a better manifold will always outperform the performer. It just depends on what you want to spend and how much work you want to do. That is what I gather from all of these ravings.
I will also say this discussion has me contemplating revisiting my Performer 318/360 manifold and doing a whole hogwild port and polish on it. I was going to use the RPM manifold I have on the shelf, but now I'm intrigued to see what the butt dyno yields haha.
TT5.9mag
Two atmospheres are better than one
I am an open book man. I share anything and everything. What I will not do is let someone make ridiculous claims and not be able to back them up with data. If that happens I am happy as a pig in poo to admit I am wrong. What would you like me to do? Print off hundreds of dyno graphs showing that port matching works and doesn’t give up low speed torque? We all know it’s better, we all know it makes power, and we all (should) know it doesn’t throw away torque. How bout he prints off one dyno graph that shows a port match giving away torque? That’s how this conversation needs to progress. He makes claim, I call BS, he proves me wrong, I admit I am wrong, and we move on. News flash, won’t happen.
TT5.9mag
Two atmospheres are better than one
Credit for at least finally using punctuation and halfway correct sentence structure. At least we can follow along as you call me names.
TT5.9mag
Two atmospheres are better than one
Do it! But run it as is before and do a comparison.
Myself and I assume most of the forum don’t have the means of testing on a Dyno.
That being said, any comparisons you could post up from your library that would assist garage builders (like myself) in achieving an efficient combination would be greatly appreciated.
Building within one’s means seems to be the objective of most threads.
Thanks for the help.
Last edited:
TT5.9mag
Two atmospheres are better than one
I have the same opportunity y’all do. I don’t get free Dyno time, I just realize the value of Dynoing the stuff I build, so I try to get either the engine or vehicle on a dyno when I can.
Once again it is not my obligation to prove a point. Ask woody for his data.
I wholeheartedly agree and why, if you read back you’ll see that I recommend the OP leave his intake alone and go drive his car. For his application the effort will not pay off.
What’s irritating is guys will NOT pay for the dyno time to test this ****, but they expect me or my customers to publish my or their results so they can learn for free.
I say piss on that.
I tell my customers if you want to publish your numbers then go for it.
99% of them don’t want to. They paid for the data. It’s theirs.
Just like flow bench numbers, cam specs and all that.
If you want to learn, education isn’t free. Most of the time.
You have guys like Darin Morgan who share everything they know, but most of the time you have to pay for that. A small monthly fee anyway.
That fee is maybe two cups of over priced foo-foo coffee that 40 years ago no one who had a pair of balls would drink.
They’ll pay for bad coffee but not knowledge.
It’s theirs sad state of motorsports today.
I appreciate your input about Dyno tuning. 30 years ago I had my 340 tuned on a chassis Dyno and it ran better than anything I could achieve.
To my disappointment, the launch had not improved, so I stuck with street racing from a roll.
As far as the intakes limitations goes, my only experience with that manifold is on a mild 360 in front of a 904. We run a 9:1 short block with a 211/218 purple shaft and stock manifolds. With an Edelbrock 625 it will absolutely shred the tires from a dead stop. With no tach in the Dart, I’d suspect it’s finished in the mid 4000 rpm range.
TT5.9mag
Two atmospheres are better than one
And not only that but MOST of what is available free from a little bit of research done on the web will show that woodys ridiculous statement is just that. Ridiculous. It doesn’t even take propriety data to disprove it.
TT5.9mag
Two atmospheres are better than one
That intake has been (rightfully so) relegated to low performance usage and that’s what it’s good at. From idle to 3500 or so there isn’t many intakes that are better. After that the rpm ag runs away from it. For a mild street engine, that never (or rarely) sees above 4000 rpm it’s hard to beat. Ive had a few 318s with headers and performer intakes with a 4 barrel and they run great. Never used one on a 360 but I’d imagine tire shredder is a good assessment.
TT5.9mag
Two atmospheres are better than one
Still true today. Or should be.
So I did run the untouched Performer on a 9:1 360, 2.02 J heads, 600 edelbrock, HE268 cam .454 lift 218 duration. 3 speed manual, 3.55 gears, 29 inch tire. It felt good. Alot of off idle torque but I knew it had more in it. It was all out of steam just over 5k. I know the RPM manifold flows more up top so I was going to install a tad bit more cam and a bigger manifold and a 750 carb. I think what I'll do while it is apart is port the crap out of the manifold and put it back together and see what it does.
Sounds like a decent combination.
FWIW. My last 360 combo has a 242/242 .510 SFT and it’s done at 5800 with 3.91:1. The LA really wakes up with a SFT cam.
I believe the 1.94 valved 308 castings limit the rpm potential of the combination.
Some Mopar enthusiasts will share “general” details at the track. Their E.T./MPH will give me a “reasonable” estimate of the HP. And the 60’ will give me an understanding of the effective torque they have at launch. The RPM that it’s all happened at is a crap shoot.
Billy Glidden glazed over when I asked him about his fathers W2 combination…The rest of the field that day were fairly forthcoming about their combinations.
The information that I obtained cost me air fair to Indianapolis and the gate fee.
Most of the time the total investment is admission fee and an overpriced hamburger…
Last edited:
it running out of huff at 5K was probably the combination of parts: the 600, the cam and the manifold would all be done about then.
the new manifold and carb will allow you to stretch it's legs a little more-- at least until valve float-- but whether you actually make any more power would be hard to quantify without some type of testing.
Great point. From the Dyno graphs people post we see some combinations hold torque fairly well up top. And some fall off horribly.
I read somewhere that the 302 and 308 castings were good for compression but not very good for flow. I don't have anything against a solid flat tappet I just don't want to have to buy the adjustable rockers to go with it haha. Plus ease of maintenance with the hydraulic is too easy for me. If it was a more serious race engine I would venture into it but I don't see the need for now.
The 308 is an open chamber head. “Allegedly” cast with the upgraded exhaust port. They have the roller cam pushrod tubes that pinch the intake runner width.
-
Similar threads
