Grady I kinda understand some of what your saying. I know if down the road I went turbo the 30's would be too small. I went with them now for the NA setup because of you saying 24's would be too small or right on the edge when I had asked about my plans a while back. I'm not sure if i want to do long tubes I know they are better but then I would have to change more of my exhaust which is more money. Also I gotta watch what i do with emissions. Part of the reason I'm putting the monster build off for a few years. My car won't be exempt untill its 25 years old i don't wanna have to wait 12 or 13 years till I can drive it lol.
Where I'm confused at is the runner talk. I know you mean intakes but I don't know the difference from one to the other. Whats a TFS street heat considered?
Who knows I might throw a new/reworked motor in the car and be totally happy with the power. This is all just a what if right now. I just upgraded storage sheds i have a 10x20 and its half empty so i am throwing together ideas. I am thinking I'll pull my motor and work on it in the shed over the winter and if its done in the spring drop it back in the car and be back on the road. Thats if i can afford the shed rent and all my other bills and parts to build a motor.
Well you have in the TFS and Edel line of intakes long, mid, and short length
runner upper intakes.
I believe they would be from long to short in the TFS line the ...
Street Heat
Track Heat
R Series
For the Edel line you have the ...
Performer
RPM
Victor
The rule of thumb for NA applications are ...
1) longest runner for good low to mid range torque
2) mid length runner for good midrange to high end torque
3) shortest runners shift the power band up to say ... 3/4 and beyond typical street combo redlines
I would tell you this and I feel most over look what I'm about to say
For a street combo good low and mid range torque is where it is at
simply because
You spend most of your time in those two areas of the power band
You can enhance the low and mid range part of the band by ...
Long runner upper intake
Spark Curve optimization
Long Tube Headers
Cam Specs
As always with mods ... compromises do come into play
Here are my thoughts along those lines and how I dealt with the issues
when I was making my decisions about my sig combo
After looking at many dyno pulls of various combos
I saw the longest runner intakes as falling off too soon in the power band
The mid length runner was a solution for the low rpm power drop off
but
You would take a hit with loss of torque down low in the power band
1) I knew I could ask my cam guy to focus in on my power band preference
2) I knew I could use long tube headers for low and mid range help
3) I knew I would have access to the spark and fuel curves
Can you see how I used 1, 2, and 3 to help and make up for lost low end
torque with my choice of upper intake
I will go ahead and point out what is obvious to many peeps here
but
We do have some peeps who are just getting started in the hobby
so
I wanted the mid length runner intake to extend the power band
This is very important and two easy examples to show it would be ...
1) A little stocker Stang
You run up the rpm's and it is starting to poop out before 5K
2) An after market h/c/i Stang
You do the same and can go to upper 5K or lower 6K range
depending upon your mod decisions
I believe so strongly in what I just said I would tell you this
Yes ... moving to LT's will force you to go to a different mid pipe
but
The difference is worth the trouble and expense
Of course ... if your state says NO to LT's ... that has to be dealt with
Now ... You said you were gonna do the self tune thing
so
You can find some more low and mid range torque with that
In the interest of ... always keeping an open mind to things
I do feel I gotta share with you the ONE combo that was the exception
that I've seen that did not follow the general rule of thumb thing with
the upper intake selection choice
I saw an AFR/FTI/Edel h/c/i combo that ...
had a good looking power band at low, mid and high range rpm's
made more power than all the other similar combos
and
he did it with the Performer which is the longest runner intake
The way he did it was ... He had the lower intake ported
Well ... I'm sure everybody is getting tired of my rambling on and on
so
Maybe the above stuff might cause some to think a bit more
Grady