C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Mad As Hell With Em

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Old Apr 16, 2006 | 04:57 PM
  #61  
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I realize you can't put toothpast back in the tube but one lesson I've learned. Never, repeat never wire money----only use American Express.
They love to reverse charges. For almost any good reason.
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Old Apr 17, 2006 | 08:02 AM
  #62  
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elefkow
i didnt have a problem wiring the money. EM is a vender here on this forum and most venders here seem to be very up front. iam pretty sure EM is one of them and will do right on this one, because now we will all be able to use their 1 7/8 racing headers. problem was fitment. iam sure the vette shop has been going over with EM on the problem. like bruce said he dosent know of anyone trying these headers. elefkow, like i said from the start, they are nice headers.
regards gene

Last edited by bacardioil; Apr 17, 2006 at 08:15 AM.
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Old Apr 17, 2006 | 02:26 PM
  #63  
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Originally Posted by Bruce
You are the first to test the fitment on the newly design 1 7/8 step up header. While a go I saw the pic of it. It is indeed a awsome header but fitment sound horrible. Just like any other newly release products. it starts out sucks and gradually get better.
I bought a set of 1 3/4 to 1 7/8th headers with merge collector from EM the first of November based on a post Zix did. Was very impressed and immediately ordered them. About a month and a half later the 1 7/8th racing headers were delivered instead of the stepped headers.

Wasn’t exactly what I ordered, but they appeared to be high quality and my car was on a rack so instead of making an issue I just told A&S Automotive where I have most of my work done to just install then.

They wouldn’t fit. The flanges were welded on backwards. I called Merle and his solution was to take a cut saw to a brand new $1,400.00 set of headers and cut the flange. Not an option in my book!!! Merle said Zix should have never made the post but they would stand behind their work and send me new stepped headers.

I then paid to have my old headers reinstalled ($250) and sent the 1 7/8th ones back. Merle was very apologetic and said they would make me anything I wanted so I contacted Burns and sent them engine spec’s/dyno sheets etc.

After a couple of months EM sent me a set of stepped 1 3/4th to 1 7/8th with merge collectors/reducers and I paid them an extra $400 for the more expensive stepped headers. This wasn’t exactly what Burns had spec’d, but Merle said they had issues with Burns over the headers.

Again, very high quality appearing and this time I installed the headers myself. The drivers side went fine but the passengers side would not fit. I had to trim the AC box leaving a large hole in it for them to fit. Still dyno tuning the car but so far I’ve not seen any gains over my origional Hooker Long tubes.

Not sure what’s up, but my credit card has never been turned down nor have any of my checks ever bounced. Obviously doing my part but it seems next to impossible to get what you pay for with virtually all the aftermarket companies.
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Old Apr 17, 2006 | 02:36 PM
  #64  
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That sucks Denny! I knew you had problems w/ the first set. I can't believe you haven't seen a decent hp/tq gain on your big cube/high rpm motor.
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Old Apr 17, 2006 | 02:55 PM
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Originally Posted by LT4POWR
That sucks Denny! I knew you had problems w/ the first set. I can't believe you haven't seen a decent hp/tq gain on your big cube/high rpm motor.
Me too!! Need to go one more round on the dyno to see if we can figure out what's going on. The fuel/air was way off and I'm not sure if the headers had anything to do with it or it's this change to summer gas.

Still a little dumbfounded but the car wanted quite a bit more fuel in the upper mid-range. That normally tells me it should make more power but the dyno graphs come out the same.

Still work in progress.
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Old Apr 17, 2006 | 04:00 PM
  #66  
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thanks d48mclain
glad to see you had the problem with the heater box also. the vette shop had to grind the flanges to clear the head studs also. i was not going to and the vette shop also was not going to cut the heater box to make them fit. iam really not glad, you know what i mean. i was at the vette shop this morning, seen the headers and what the vette shop had to do to make them fit. they are in now and look good. yes they are nice headers now that the fitment is right. there are a few other thing that could be done to make them fit even better. then EM would have one hell of a set of headers. yes 1415.00 is big money for headers and no gain but give it a chance on the tune and see what happens. thanks denny i wasnt making this problem up. trevor is on this problem with the vette shop, havent heard from merle, sure he knows. all i want is to get this problem all worked out and i'll be fine. again thanks denny.
regards gene

Last edited by bacardioil; Apr 17, 2006 at 04:04 PM.
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Old Apr 17, 2006 | 04:51 PM
  #67  
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Originally Posted by d48mclain
Again, very high quality appearing and this time I installed the headers myself. The drivers side went fine but the passengers side would not fit. I had to trim the AC box leaving a large hole in it for them to fit. Still dyno tuning the car but so far I’ve not seen any gains over my origional Hooker Long tubes.

Not sure what’s up, but my credit card has never been turned down nor have any of my checks ever bounced. Obviously doing my part but it seems next to impossible to get what you pay for with virtually all the aftermarket companies.


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Old Apr 17, 2006 | 04:51 PM
  #68  
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Originally Posted by d48mclain
Merle said Zix should have never made the post but they would stand behind their work and send me new stepped headers.
Wow, you know, I'm going to have to have a chat with him because he's the one that ASKED me to post that info up because no one down there is very computer literate. I deal with Trevor as lot more than I deal with Merle...I guess I'll have to keep it that way.
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Old Apr 17, 2006 | 05:43 PM
  #69  
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zix
i said there was a problem with the fitment. some guys were making it sound like iam wrong and this cant be, they all fit perfect. this is not so. the vette shop and i arent crazy. all i want is the right thing to be done not asking for the world. EM is a vender here and should stand by their products.

bill
thank you for stepping up with the same problem.
regards gene
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Old Apr 17, 2006 | 05:50 PM
  #70  
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Originally Posted by Zix
Wow, you know, I'm going to have to have a chat with him because he's the one that ASKED me to post that info up because no one down there is very computer literate. I deal with Trevor as lot more than I deal with Merle...I guess I'll have to keep it that way.
Zix:

When Merle told me that it was unauthorized post and did not come from EM……… I was a bit skeptical. You got the pictures somehow.

I can see how you would want to help out a shop. Used to do it myself and found out the hard way to keep at least three feet back.
Still help support a local shop as I truely believe they do excellant work, but I'm a little more tactfull that I once was.
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Old Apr 17, 2006 | 05:51 PM
  #71  
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zix
i said there was a problem with the fitment. some guys were making it sound like iam wrong and this cant be, they all fit perfect. this is not so. the vette shop and i arent crazy. all i want is the right thing to be done not asking for the world. EM is a vender here and stand by the product.

bill
thank you for stepping up with the same problem.
regards gene
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Old Apr 17, 2006 | 05:56 PM
  #72  
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Originally Posted by bacardioil
zix
i said there was a problem with the fitment. some guys were making it sound like iam wrong and this cant be, they all fit perfect. this is not so. the vette shop and i arent crazy. all i want is the right thing to be done not asking for the world. EM is a vender here and stand by the product.

bill
thank you for stepping up with the same problem.
regards gene
I certainly do not doubt your fitment problems, I personally have never seen those headers installed on that year, they are BIG headers so the fitment it ALWAYS tight, and they were originally meant as full race headers...which usually means no AC box to deal with. Of course you should have been warned about this beforehand IMO. I'm sure things will be made right by you, hopefully sooner rather than later!!
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Old Apr 17, 2006 | 05:58 PM
  #73  
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Originally Posted by d48mclain
Zix:

When Merle told me that it was unauthorized post and did not come from EM……… I was a bit skeptical. You got the pictures somehow.

I can see how you would want to help out a shop. Used to do it myself and found out the hard way to keep at least three feet back.
Still help support a local shop as I truely believe they do excellant work, but I'm a little more tactfull that I once was.
I know what you mean, and for the most part I stay out of things down there. Trevor just happens to be one of my good friends down here so I find myself down there just shooting the shiet when I'm in the area.
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Old Apr 17, 2006 | 05:58 PM
  #74  
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bill
iam sure EM dose great work. just like the vette shop. i drive 2 hrs because of the work they do.
regards gene
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Old Apr 18, 2006 | 02:30 PM
  #75  
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Zix
Sometimes It Pays To Stay In The Back Ground.
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Old Apr 19, 2006 | 11:07 AM
  #76  
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Originally Posted by Zix
I certainly do not doubt your fitment problems, I personally have never seen those headers installed on that year, they are BIG headers so the fitment it ALWAYS tight, and they were originally meant as full race headers...which usually means no AC box to deal with. Of course you should have been warned about this beforehand IMO. I'm sure things will be made right by you, hopefully sooner rather than later!!
That one I'm not buying. Headers are headers and are designed for a specific car. Not visa versa. No one should have to take a grinder and grind away fiberglass to make them fit. The headers I received were 1 3/4th in section that doesn't fit right. Plus there is little difference between 1 3/4th and 1/7/8th. I dare you to tell with the naked eye.

I now have to remove the headers, grind more away and try and patch it up so my air will work.

Very poor quality control..........not visa versa. As someone mentioned, you really should think about taking a step back as making excuses for poor design, quality control is unacceptable.
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Old Apr 19, 2006 | 11:52 AM
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To Mad As Hell With Em

Old Apr 19, 2006 | 04:33 PM
  #78  
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Originally Posted by d48mclain
That one I'm not buying. Headers are headers and are designed for a specific car. Not visa versa. No one should have to take a grinder and grind away fiberglass to make them fit. The headers I received were 1 3/4th in section that doesn't fit right. Plus there is little difference between 1 3/4th and 1/7/8th. I dare you to tell with the naked eye.

I now have to remove the headers, grind more away and try and patch it up so my air will work.

Very poor quality control..........not visa versa. As someone mentioned, you really should think about taking a step back as making excuses for poor design, quality control is unacceptable.
Okay, you have to look at it this way, people think of it only as a small 1/8" difference in tube size...but when you set a pair of 1 7/8" headers next to a pait of 1 3/4" headers, the size difference is EASILY noticed. And yes, it's only 1/8", but the total VOLUME difference between the two is quite a bit!!

Who's 1 3/4" headers did you get? I have installed, and/or seen over 20 sets of those installed personally, and not a single pait had any issues with fitment. In fact they have been some of the easiest installing headers on a C4 I have ever seen. Much easier than my TPIS 1 3/4" headers.

And as I said before, the straight 1 7/8" headers were made as a PURE RACE header. This means that a lot of the things that a normal street car has aren't there, such as the AC box. And again, as I said before he should have been told this specifically BEFORE he ordered them.

But, back to your original part...if you set a 1 3/4" header next to a 1 7/8" header, I'll point out the 1 7/8" header to you in under 5 seconds...it's THAT noticable.
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Old Apr 19, 2006 | 04:46 PM
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zix
if this is the problem that the racing headers are made different then yes they should tell the customer, but they dont for what ever reason, which is bad. what they should do is make them fit properly. how do you sell headers for the c4, street driven, you know dont fit.
regards
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Old Apr 19, 2006 | 05:12 PM
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Ok I think this thread has gone on LONG ENOUGH. I know you are mad but dang man come on you gotta get something going and get this resolved peacefully its just getting outta hand
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