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Re: "Stage II" porting....its not all the same
[Re: fast68plymouth]
#13494
11/19/04 01:57 AM
11/19/04 01:57 AM
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Yea, .. I've enjoyed this thread very much, . . it's nice to have other porters to talk to. As for all this correction factor stuff. Dwayne makes a good point, .. the normal use of a flow bench, .. to see if you made an improvement, .. just use the inclined meter, .. but on the SF-110 the temp correction does effect the final cfm number. I've noticed if I work a head it may show the same say 80% but if the temp spread is a little different between the two tests the final cfm number isn't the same. If I'm carefull about the temp spread it's dead on, .. .. I got into the baro thing cause the Port Flow software & the Flowcom do all these corrections including baro. If you guys done have the software, .. you should try it, .. I've found things I missed because I can now over lay flow graphs & stuff, .. well worth the cash. Dwayne, .. if Jeff is getting a bigger blower, .. perhaps he'll make you a deal on his SF-600???? I wouldn't mind having it, . . I have found without a doubt that larger heads need the higher flow rates, .. like you said about the 110 on big stuff. I've also found short turn problems at 34" that didn't show up at 28" Wanna borrow my enclosed trailer to go get the bench  Curtis
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Re: "Stage II" porting....its not all the same
#13496
11/19/04 11:06 AM
11/19/04 11:06 AM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
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Quote:
Dwayne, .. if Jeff is getting a bigger blower, .. perhaps he'll make you a deal on his SF-600????
as they say....timing is everything.
unfortunately, the plan for me at this point is to try and relocate sometime next spring/summer.
when that happens there will be some other pieces of equipment i will need to buy instead of a newer/larger flow bench.
currently my shop is integrated with another full service shop, so when i move i'll need to buy a few pieces of equipment i wont have access to any longer.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: "Stage II" porting....its not all the same
[Re: fast68plymouth]
#13497
11/19/04 12:29 PM
11/19/04 12:29 PM
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Dwayne,
Ahhh, .. moving sucks, .. I'm going through that now, ..
I have equipment in 3 other shops, spread around till I get moved into new "diggs"
I'm in Northern Va just outside of DC, .. that spells OVERLY expensive. So, .. I'm buying a home on 3+ acres in Ashland just north of Richmond and putting up a 40x60 shop.
Curtis
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Re: "Stage II" porting....its not all the same
#13498
11/19/04 09:09 PM
11/19/04 09:09 PM
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Wow what a good thread. Hot rod 101 is the heads. Every one that has anything to do with hot rods finds that out pretty fast but not always the nitty gritty thats devised from. I've looked at several head porters ads lots of times. Wondering what is or is not hype and what really counts.
We are all aware too that the last few horses and foot pounds are what is the most expensive to get. Even then will the car actually be faster?
I'm sure that every one has seen or heard stories about racers who have found out after using some how zuit suit cam or part that a run of the mill part that been around for ever is still actually faster. Your dollars lighter.
Its common knowledge too that people can really get going on over a new part of process only to deciede later on thats its only so so. Now this is showing us what is really going on in the continuing story of head modifications and what we can realistically expect for our cash out lay.
Ultimately a lot of it is going to be the experience with a set of heads with that porter has.
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Re: "Stage II" porting....its not all the same
#13499
11/21/04 01:06 AM
11/21/04 01:06 AM
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Quote:
Wow what a good thread. Hot rod 101 is the heads. Every one that has anything to do with hot rods finds that out pretty fast but not always the nitty gritty thats devised from. I've looked at several head porters ads lots of times. Wondering what is or is not hype and what really counts.
Ultimately a lot of it is going to be the experience with a set of heads with that porter has.
I hope this stuff has shed some light on the mystic world of head porting 
It's tough to go through those head porter ads, .. and as a porter, it's hard to write them without sounding like all the other hype. Brag about records or championships, well ya sound like a bragger, .. .. and God forbid you start to play the CFM numbers game that we all know is only 1/10 of the equation.
So, .. as a consumer, .. If you had to write an ad for my shop, ..
ex IHRA pro stock head porter, .. ex NASCAR, bla, bla ,bla .. now doing custom work, .. how would YOU write that ad????
On your experience comment, . . I kinda agree, and kinda don't.
One thing, most of the porters here seem to understand all the basic stuff, .. how to figure the proper port volume & cross section for an application, .. valve size, .. flow ratios.
With that info a good cylinder head guy can take a velocity map of a port and a calculator and build the proper port, .. even if he's never seen the head before. ( velocity map VERY important here )
The experience comes into play when it's , .. say a comp engine, ..
or a combo that you're trying to get that last 5 hp, .. or get it to 2.+ HP per C.I. then it takes some very advanced engineering skills as well as prior experience with that combo.
Curtis
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Re: "Stage II" porting....its not all the same
[Re: fast68plymouth]
#13500
11/21/04 08:15 AM
11/21/04 08:15 AM
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Joined: Jan 2003
Posts: 32,394
Quicktree
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Quote:
Quote:
Dwayne, .. if Jeff is getting a bigger blower, .. perhaps he'll make you a deal on his SF-600????
as they say....timing is everything.
unfortunately, the plan for me at this point is to try and relocate sometime next spring/summer.
when that happens there will be some other pieces of equipment i will need to buy instead of a newer/larger flow bench.
currently my shop is integrated with another full service shop, so when i move i'll need to buy a few pieces of equipment i wont have access to any longer.
hey are you coming south?
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Re: "Stage II" porting....its not all the same
[Re: Quicktree]
#13501
11/21/04 11:50 AM
11/21/04 11:50 AM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
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Quote:
hey are you coming south?
well....south from where i'm at....but not as south as you are.
actually, i havent nailed down a location yet, but real estate prices, and the amount of racing being done within a reasonable distance will be the main criteria i'll be looking at.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: "Stage II" porting....its not all the same
[Re: fast68plymouth]
#13502
11/21/04 11:52 AM
11/21/04 11:52 AM
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Joined: Jan 2003
Posts: 8,547
State College, PA
RyanJ
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Posts: 8,547
State College, PA
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Quote:
most SB Mopar "home port" type work ive tested is usually in the 220's and 230's, although mid-240's is really pretty easy to attain, and doesnt really require much material removal....if you take it out of the right places.
Yep.
Dwayne, Central PA is nice LOL. I've got a\ used SF-901, it just needs setup 
Curtis: What uh.... head is that in your Avatar? Sure looks like W8/9 to me. 
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Re: "Stage II" porting....its not all the same
[Re: RyanJ]
#13503
11/21/04 12:26 PM
11/21/04 12:26 PM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
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Dwayne, Central PA is nice LOL.
Pa. is actually pretty high on the list of possible locations.
lots of racing(all types), and street cars, and in many areas the housing costs are pretty friendly.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: "Stage II" porting....its not all the same
[Re: fast68plymouth]
#13505
11/21/04 02:24 PM
11/21/04 02:24 PM
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Joined: Jan 2003
Posts: 32,394
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Quote:
Quote:
hey are you coming south?
well....south from where i'm at....but not as south as you are.
actually, i havent nailed down a location yet, but real estate prices, and the amount of racing being done within a reasonable distance will be the main criteria i'll be looking at.
year round racing down here. nascar, mud bogs,etc 
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Re: "Stage II" porting....its not all the same
[Re: 440Jim]
#13507
11/21/04 05:59 PM
11/21/04 05:59 PM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
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Quote:
Well, with all the talk about relocating...
Dwayne, do you plan to just do cylinder heads, intakes, etc.? Or are you going to buy equipment to do blocks, engine dyno, etc.?
Jim, the "plan" is to just do heads at first, with dyno service following as soon as feasible.
no real plans to get into doing bottom end stuff.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: "Stage II" porting....its not all the same
[Re: RyanJ]
#13508
11/22/04 01:50 AM
11/22/04 01:50 AM
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Quote:
Dwayne, Central PA is nice LOL. I've got a\ used SF-901, it just needs setup
Curtis: What uh.... head is that in your Avatar? Sure looks like W8/9 to me.
Hey there Ryan, .. I was wondering when you where gonna show up. That's a 12º small block Chevy comp head in my avitar.
Flows close to 400 cfm!
Remember, even tho I'm a Mopar lover, .. I've spent most of my life working on Chebbys & Ferds.
Dwayne, .. man I am feeling your pain with this move deal.
I'm going through the same thing. I live close to DC in Northern Virginia, .. the cost of housing & shop space is just STUPD!
I've been looking in northern Maryland, and West Virginia, .. unless you are like a three hour drive from DC the prices aren't much better. So, .. I'm going down to Ashland Virginia, just outside of Richmond. My $600K house in DC costs around $130K there with 2 acres!
I was born in Harrisburg PA, .. my family, uncles & cuz's are up there, .. have a cuz that works for Jenkins, .. Pro stock is in the family.
Good luck with your move, .. and if I can help in some way, ..
Curtis
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Re: "Stage II" porting....its not all the same
#13509
11/22/04 02:36 AM
11/22/04 02:36 AM
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Anonymous
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i'm considering a move also. i dread the thought for a couple reasons. one is because of all the stuff i need to pak, the other is because it will likely be back to the cold northeast.
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Re: "Stage II" porting....its not all the same
#13510
11/22/04 11:51 AM
11/22/04 11:51 AM
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why in the world would you move out of West Palm beach ????
I was thinking at one point, of moving down around the Sebring area, .. I know, middle of the state, HOT, .. but housing is very cheap, .. business taxes are low, .. .. but too far a drive to all the north east road race tracks.
Curtis
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Re: "Stage II" porting....its not all the same
[Re: dartman366]
#13513
11/22/04 10:36 PM
11/22/04 10:36 PM
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I read alot about porting the heads, but what about the intake. How much work is required to the intake to get it to complement the heads?
Last edited by 920mopar; 11/22/04 10:37 PM.
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