Dynatech Header Cracking?
05-22-2008, 10:45 PM
#1
Le Mans Master
Thread Starter
Dynatech Header Cracking?
Since I blew a quarter size piece out of my headers (#2 cylinder on top) I was wondering if any others had this problem with an aftermarket header?
05-22-2008, 10:49 PM
#2
Race Director
I had a set of TPIS headers litterally crack into pieces once (they were mild steel, plus I had "wrapped" them. However, I've used LG SS headers since, and they are very durable. Aren't Dynatechs SS as well????
05-22-2008, 10:50 PM
#3
Le Mans Master
Thread Starter
They are SS - not sure what alloy. It looks like brittle fracture failure...
05-23-2008, 09:27 AM
#6
Race Director
I am sure they were not welded in an oxygen free environment as they should be to preclude this type of failure........
05-23-2008, 10:18 PM
#7
Le Mans Master
I'm pretty sure I remember reading somewhere that prior to '04, the tubing used by Dynatech was not the greatest and that they have since upgraded. There were compaints that when letting off the fast pedal, unburned fuel (at much lower temps) was causing cracking in the primary tubes and also inside their converters. Please don't quote me as my memory has been known to fail me quite frequently.
Last edited by sperkins; 05-23-2008 at 10:26 PM.
05-23-2008, 10:44 PM
#8
Safety Car
How did you know you had a problem--altered exhaust sound from the engine? I have Dynatech's but the prev. owner installed them.
05-24-2008, 06:59 AM
#9
Le Mans Master
Thread Starter
05-24-2008, 04:44 PM
#10
Safety Car
Sorry his track day evidently ended prematurley.
05-24-2008, 04:47 PM
#12
Le Mans Master
Thread Starter
We won TTA on Sat and Sunday - even set a new track record for TTA on Sunday with the patch in place...
It is still in the trailer since the event
05-28-2008, 06:46 PM
#13
Le Mans Master
Thread Starter
Finally talked to Dynatech today - since I bought them 19 months ago they are no longer under warranty but once I paid them $627 for a driver side replacement
and send them my failed one they are 95% sure they will cover the cost......
If they do not cover it I will be returning the replacement and go to stock manifolds again I guess
and send them my failed one they are 95% sure they will cover the cost......If they do not cover it I will be returning the replacement and go to stock manifolds again I guess
05-28-2008, 07:34 PM
#14
Former Vendor
We cover our headers no questions asked. We have not had a failure to the tubes, period. If we do, we will replace it. We have the occasional air tube fitting come off, but usually that was an earlier header with out a brace, or the customer ran no air tubes which dampen the vibraitons.
Our stuff was designed and built on the race track, no way would we ever build a sub par piece
Our stuff was designed and built on the race track, no way would we ever build a sub par piece
05-29-2008, 05:42 AM
#15
Le Mans Master
Thread Starter
We cover our headers no questions asked. We have not had a failure to the tubes, period. If we do, we will replace it. We have the occasional air tube fitting come off, but usually that was an earlier header with out a brace, or the customer ran no air tubes which dampen the vibraitons.
Our stuff was designed and built on the race track, no way would we ever build a sub par piece
Our stuff was designed and built on the race track, no way would we ever build a sub par piece
05-29-2008, 07:46 AM
#16
Safety Car
We cover our headers no questions asked. We have not had a failure to the tubes, period. If we do, we will replace it. We have the occasional air tube fitting come off, but usually that was an earlier header with out a brace, or the customer ran no air tubes which dampen the vibraitons.
Our stuff was designed and built on the race track, no way would we ever build a sub par piece
Our stuff was designed and built on the race track, no way would we ever build a sub par piece
All I have to do now is recover from one getting through college and one going into college. 
