I've been helping my buddy wrench on my old 95 Formula that he bought from me. Sent the heads out to be done by a local shop (reputable). I was just wondering what flow numbers others are getting out of thier stock heads. Stock valves if that matters. I`ve been out of the LT1 circles for a long time.

 

Flow numbers are not the true measure of a head. The heads are sent, what is done is done, don't second guess it till you run it and see how they work.

These days stock castings are being worked to deliver serious power, serious enough that aftermarket castings should nearly be considered a mistake to consider.

 

especially considering price. after buying aftermarket castings and spending the cash to port them out... it would **** you off to see a guy who spent considerably less porting his stockers outflowing yours. from reading (no personal experience) i have gathered that until you get into ENORMOUS numbers powerwise, there is no benefit to aftermarket castings.

 

and i agree with 96caprice, numbers mean absolutely nothing. you can have heads that have been cut and flow AWESOME on a flowbench, but if they were not ground properly you can lose all velocity of air flowing into the engine.

 

Can I agree to disagree? lol

The flow of the head is the cars peak HP potential. Theoretically if it flows 230 then double that number to see it will support up to 460 hp.

I agree with the porting of stockers if they have the good castings. There are many out there who do really great work!

There are two very distinct types of flow benches. One is wet and one is dry. The wet flow actually shows air velocity and swirl patterns, which also tends to lend itself to be more credible. Just like a dyno we do not race them. The numbers from two identical flow benches will be different even if they are in the same room! So thats kinda like where I agree and disagree lol. Never-the-less it is all still as clear as mud!

 

^ I would agree with the above.

Flow numbers are definitely not everything, there are other factors that make good or bad heads, but saying they are meaningless is rather dumb.

 

here is some good info. . . .

https://ls1tech.com/forums/showthrea...ight=turbulent

Lloyd

 

That is your attempt at marketing not real useful information. I will agree on the fact some shops lie about flow numbers, say by using a larger than average bore to inflate them.

 

 

Well I understand the differences between the flow benches, I was only asking what kind of round about numbers to expect to make sure the guys did a halfway decent port job. He`ll be using a superflo 1020, don`t know if thats wet or dry. I`ll ask. Flow numbers as relating to power isn`t terribily critical, as this isn`t a race car.

 

anything from 240-260 cfm is good for stock valves.

 

Lloyde do not worry to much he is pretty brash and single minded half the time and pretty decent the other half


Sorry for the hijack but Lloyde does this for a living and is a sponsor here. His work is some of the best hand work you will find.


Hey 96 this is the offical call out. Drag your *** to the LTx shoot out and show what youve got Leave your excuses at home

 

hahah ^^

 

What a crock of ****. He wasn't the only head porter to post in that thread, and there was some very detailed and specific info there.

I don't see you offering any better "real useful information".

 

Most people see what they want too see, few of us truely take in and evaluate information.

Thinking Lloyd is great is right on par with thinking M1 5w-30 is the best oil. Not rooted in reality.

Ellis, I don't have an f-body and I am not a competitive racer, only 2-3 passes in competition behind me. The shootout is not a priority, if it is convenient to show up I might because there are going to be some cars I want to see and I would run but would not dream of being competitive. Guessing not many cars that will have a 6-700 mile drive will be competitive.

 

When are you going to get AI to become a sponsor? That way we can all become enlightened such as yourself.

 

I am a customer I would not have any say in how they spend their money.

Way I see it though is they spend their effort making customers cars fast which gets them sales, rather than the more common approach of trying to convince everyone mediocre results are good.

 

Quoted for truth.

 

Phil Definately Has you pumped full of **** that is for sure LOL!

Yes I HAVE actually used, dyno'd and tested many of the heads out there. Hard to beat LE heads with out spending alot more money.


I knew you would not come and race. The only thing you are good at driving is your key board! Does not take much in the way of ***** to do that.

I am putting my money where my mouth is and driving the 2,400 miles to race. I still drive my car on a daily basis but I am not stupid enough to drive it that far and lite it off BUT I will be there and I put money up for it! I realy expect nothing in return but a good time and everyone else to show and have a good time

You want to shut some of these people up?

Show up and prove it in person like everyone else!

 

Have you actually tested AI heads and LE heads on the same car?
I have and the results weren't pretty. If test and tune doesn't keep getting rained out I'll have track results too.