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Author Topic:   Best Headers?
DSR_54
Dirt Newbie

Total posts: 2
posted November 30, 2005 01:21 PM  
What are the best headers for a mod. 180*, tri-y, long tube, stepped, square tube, or shortys.

Who makes a tri -y or a square tube header for an IMCA or Wissota type mod?

Fastride 38
Dirt Maniac

Total posts: 138
posted November 30, 2005 03:17 PM  
Dynatech has a good set of headers for any application but they are a bit on the pricey side. www.dynatechheaders.com

wfoondirt
Dirt Forum Champ
Total posts: 520
posted November 30, 2005 03:29 PM  
I liked the 1 3/4 to 1 5/8 step headers from dynatech. Quality wise the dynatechs are heads and shoulders above about anything else out there.

I don't feel any gains from the 180 or tri-y headers are worth the additional weight.

The shorty popcorn popper headers just plain $uck .

edit. Why is $uck censored? or anything else for that matter.

[This message has been edited by wfoondirt (edited November 30, 2005).]

rrrrick
Dirt Freak

Total posts: 204
posted November 30, 2005 04:56 PM  
I like the 180 degree headers just for the fact that they are out of the way of getting hit. I have been running the same set for 6 years without a problem.
The coated headers are really nice, but the extra heat in the header pipe seems to make them brittle and they crack.


rocket36
Dirt Freak

Total posts: 231
posted November 30, 2005 08:40 PM  
we have been running the same dynatech headers on our late model for the past 3 seasons with no problems and they were well made. they were 1 5/8"-1 3/4"-1 7/8" step with 3" outlet on 23deg heads.
i have just purchased a new set of schoenfeld pipes, 1 3/4"-1 7/8" with 3 1/2" outlet. they are extremely nicely made and very well priced.
if you can afford them, tri-y is definitely the way to go but they have the matching price tag.
crash damage & poor mounting (which leads to cracks) are the usual problems with any header.

fastow
Dirt Maniac

Total posts: 170
posted November 30, 2005 10:02 PM  
wfoondirt popcorn headers is that like the old zoomies that really didn't have collectors on them? or I see some guys running shorter syles header that just shoot straight down but use a collector

andykmod
Dirt Freak

Total posts: 376
posted November 30, 2005 11:39 PM  
Dynatech are pretty good, I had a few sets of Schoenfelds and had to weld up cracks on every pair.

NJantz
Dirt Forum Champ
Total posts: 763
posted December 01, 2005 06:07 AM  
I've always had Dynatech's and have been very happy.

wfoondirt
Dirt Forum Champ
Total posts: 520
posted December 01, 2005 07:15 AM  
quote:
Originally posted by fastow:
wfoondirt popcorn headers is that like the old zoomies that really didn't have collectors on them? or I see some guys running shorter syles header that just shoot straight down but use a collector

Like these:


DSR_54
Dirt Newbie

Total posts: 2
posted December 02, 2005 08:08 AM  
I run Wissota and have to weight 2600lbs. So I'm not worried about weight. I'm not worried about the cost if it helps make power. I want to know the best headers. I talked to one of the fastest guys in the area and he and his brother both run tri-y headers. I have found tri-y headers for a late model but not for a mod. I have also seen some very fast guys with square tube headers, just not at my home track. Does anyone know who makes tri-y or square tube headers for a mod?

zeroracing
Dirt Forum Champ
Total posts: 1902
posted December 02, 2005 10:44 AM  
Call propower the large dirt late model engine builder, and ask them. They advertise them for late models, but if anybody would know where to point you they would be the spot.
A friend has a full open late model. The final thing they put on it was a 3500 dollar set of stainless steel tri-y headers. They made a large improvement to hp and smoothed the torque band. This car has 30000 worth of motor also.

Now for the header brands, I have had custom craft, would not recomend doing any business with them for many reasons.

I have never had dynatech but they seem nice.

I now have a set of Schoenfelds, I bought them at a low price from a local place that had them extra. To get the headers to last a longer time, take them when you get them, clean alot of the loose paint off, go over each flange to tube attach point. They are only tack welded there. I weld almost all the way around them, keeping room for the bolts. Then go to the other end, and weld a tab onto the collector. Take a weight clamp and teather the collector to the frame of the car like a muffler, only most use aluminum straps and pull them just tight. Also I repaint them with several coats of a high temp paint.

I have discussed this with a guy I race with, he is a muffler shop owner. He recomend this way.
Because the headers are too large/long. They are only tack welded so all the weight and vibrations of the header are held by the small tacks. So full welds help to reduce the cracking and the strap releases alot of the load on them. Plus cuts down on vibration which causes alot of the tube cracks.

With any brand putting the welds on them, and bracing will help them to last much longer.

I like the 180 idea because of keeping them out of the way.


mod15r
Dirt Roller

Total posts: 11
posted December 03, 2005 10:39 PM  
180 or cross over headers are good if you run at a track that has muffler rule. you can run mufflers toward the back of the car. tri-y headers are not legal for imca. rules state that all primary tubes must enter collector in same location. 180 or croos overs sound awesome but are hard to fit into most cars with out modification.

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