twisted wedge or afr's?

droptopford 5 0 · Nov 19, 2005

just as the title suggests, what do people on here prefer on the 5.0? trick flow twisted wedge, or AFR 165, 185's etc... both power, quality, and ease of installation/tuning aspects... thanks

Joes95GT · Nov 19, 2005

A cylinder head is an inanimate object. Cylinder head selection has nothing to do with tuning - pick the right valve size or your motor is a scrap heap...its that easy.

This topic has been beat to death in other threads. Do a search and you'll find reading material for years.

Joe

YEAHLOH95 · Nov 19, 2005

i would run one of each

zenboy99 · Nov 19, 2005

Trick Flow and AFR-165's flow about the same but the AFR has a smaller port volume.

I went with Trick Flow because they were a couple hundred dollars cheaper then the 165's. Companies like Fox Lake and Total Engine Airflow can port them out to flow over 300cfm so they have good potential.

Grn92LX · Nov 19, 2005

What engine is the head going on? Combo? Goals? All 3 heads are of great quality, i've had the liberty of getting my hands on each one of them and they're all nice. My preference for your typical 302 is the TW stuff.

Mrgreen94gt · Nov 19, 2005

YEAHLOH95 said:
i would run one of each

Hmmmm. I wonder what would happen.

walker95svt · Nov 19, 2005

why is it that someone can't ask a redundant question without getting jumped on? Maybe he doesn't want to search all the forums and read for years. It's a legitimate question he asked. Maybe he wants to start a new thread and re-open the topic. Maybe people should jump on the "my clutch makes a funny noise" guys. We see that every day. Anywho;

I have a set of AFR 185s. They feel great at all throttle positions, and are great heads, but I'd choose the trick flows over them for price and performance given the chance to do it all over. They've been at it for years, and have proven their name through countless street cars that beat the living hell out of anything that crosses their path. It seems like every psychotically fast mustang I come across has trick flow heads and is NA with gears, not some exotic forced induction setup.

No real evidence here, just an opinion over which heads to go with. I've seriously known at least 3 fox body mustang that ran 11s (one in the tens, but with nitrous) with trick flows.

walker95svt · Nov 19, 2005

and yes, I do think heads can have a LOT to do with driveability, and I think that's what he meant by tuning. Are you saying a car with 8:1 compression and a gigantic cam and heads/intake with 302 cubes will tune up fine?

nmcgrawj · Nov 19, 2005

zenboy99 said:
Trick Flow and AFR-165's flow about the same but the AFR has a smaller port volume.

I thought the twisted wedge was closer to the 185 than the 165, im not sure on flow numbers but in threads i have read, i just thought people put those two together.

Anyway, it doesnt really matter what head you use. What matters is that you match your combo's components to eachother. Is it setup for a sub 6k power band? Or will it run to 6500?

nmcgrawj · Nov 19, 2005

walker95svt said:
and yes, I do think heads can have a LOT to do with driveability, and I think that's what he meant by tuning. Are you saying a car with 8:1 compression and a gigantic cam and heads/intake with 302 cubes will tune up fine?

Heads wouldnt get the compression that low without getting a dished piston...and if u did that, i would hope you would be planning on a non n/a application. The CC chamber would have to be HUGE to get it that low im sure.

A lot of guys like to go with a "smaller" head for "velocity" in our heavier cars. Which works and has proven to work. But you can run "bigger" heads as long as u design for it...meaning you have a cam that makes it work.

droptopford 5 0 · Nov 19, 2005

WELL... i did a little searching already, but i just wanted a little quick feedback without hearing about a whole bunch of things that are coming up such as that someone has an installation problem tagged onto what i really want to know, etc... and this car would be a 90 lx fox with SO FAR all suspension work done, tremec tko 600, with centerforce clutch,3.73's w/ BFG d/r's, full bassani exhaust w/ x and l/t headers, t/b and MAF somewhere around the 70-75 mm area (i dont remember exactly since its not MY car)set up for 24 lb injectors.he's looking for deep 12's and my buddy was just asking me some questions and i wanted some quick opinions to throw at him since he has the option to get a nice afr set up, or a twisted wedge package for a little cheaper... he wants to run just heads cam intake for now but needs to keep it streetable since he drives this quite often(<6K redline). and he might throw the zex system on for a little more go at the track. i know both will make good power if matched to the right other cam and intake, (ive been reading theses forums for too long now even though my post count doesnt show the pre-crash numbers) as far as the tuning issue goes, i know you dont tune your heads, i just didnt know if one was easier to tune to as far as streetablility goes.. thanks for the feedback. p.s. i only posted a fox question in the 94-95 section cuz i know and trust most of you here and the 5.0's are similar as far as head selection goes...and i dont wanna hafta wander into that dreaded pre 94 5.0 section

zenboy99 · Nov 19, 2005

nmcgrawj said:
I thought the twisted wedge was closer to the 185 than the 165, im not sure on flow numbers but in threads i have read, i just thought people put those two together.

Its hard to say, the Twisted Wedge intake port volume is 170cc, but because of the "twisted wedge" the runner is shorter so the cross section area is greater. So I think its right in between a 165 and 185.

BlownFiveLiter · Nov 19, 2005

droptopford 5 0 said:
...and i dont wanna hafta wander into that dreaded pre 94 5.0 section

I spend a ton of time on this site over there. There's a lot more Fox Mustangs on the road than 94-95's, so you'll inevitably receive more responses over there, but I don't think anyone here or there would try to steer you in the wrong direction. I think the guys over here are just as smart as the Fox 5.0 guys, they just have more numbers which equals more opinions on the subject. Now personally, I'm planning on selling off my GT40P heads at some point and getting a set of TW heads. I just like the idea that they've been around a lot longer, and have proven themselves time and time again with some incredible results.

walker95svt · Nov 20, 2005

Either way the setup goes, both sets of heads with a decent cam and intake will be MORE than enough to split your block in two with lots o' RPMs and a decent shot of nitrous. I guess you really can't go wrong in this now time honored debate.

droptopford 5 0 · Nov 20, 2005

glad to see the responses.. but ill probably try to steer my buddy in the twisted wedge direction, only because of the money standpoint, i DO like the AFR's tho.. hmmm, maybe its time i throw in a good h/c/i package too

94GTLaserRC · Nov 20, 2005

YEAHLOH95 said:
i would run one of each

Bad idea...It's cheaper to get ONE set in pairs, than it is to buy ONE of each.

Now, if cost is NOT an issue, then You could try it...If the car pulls harder turning left or right, then you know which cylinder head is making more power.
RC

YEAHLOH95 · Nov 20, 2005

94GTLaserRC said:
Bad idea...It's cheaper to get ONE set in pairs, than it is to buy ONE of each.

Now, if cost is NOT an issue, then You could try it...If the car pulls harder turning left or right, then you know which cylinder head is making more power.
RC

yeah thats what i was thinking but i'll bet they are so close you would even notice just lke the intake test in this months 5.0

final5-0 · Nov 20, 2005

94GTLaserRC said:
Now, if cost is NOT an issue, then You could try it...If the car pulls harder turning left or right, then you know which cylinder head is making more power.

RC

That was the first thought I had when I saw that post as well RC

I figured the car would only go in circles

Grady

94GTLaserRC · Nov 20, 2005

final5-0 said:
That was the first thought I had when I saw that post as well RC

I figured the car would only go in circles

Grady

Us old dudes think alike
RC

TMC · Nov 21, 2005

I'll only add that I prefer the TW heads...

twisted wedge or afr's?

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