Considering purchase of a 02-ZO6 and would like to transfer TTS-LT headers that are on my 01 coupe. But i have been told that the TTS headers are great for LS1 but do not flow high enough for head/cam cars. Do any of you guys have any experience with TTS headers on a ZO6?? What HP gain can i expect if any?? thanks.

 

Ask MattG. He still has his original TTS headers on his 436 stroker and it puts out over 480rwhp and almost 500rwtq. :eek: :eek:

 

The bottom line is that you will make more power with a larger diameter LT on your LS6. The TTS LTs are awesome quality, but if you want the most HP for your mod, get a set of TPiS or similar with the larger diameter tubes. :)

 

I disagree, on a stock Z06, there is no way an extra 1/8" diameter is going to give you a whopping more amount of power.. The smaller tubes will however give you some more power in the lower RPMs that you will feel everytime you drive the car..

On a real agressive heads/cam package, you may pick up an extra couple rwhp at peak, but at the same time lose 10rwtq or more in the lower RPMs. It is all a matter of where you want you power.. For me, I prefer to have more power in the lower RPMs as it is much more noticable than a few extra hp/tq at 6000rpm that you only hit one a day, or maybe even once a month!

I ran these headers on my heads/cam car that made 417rwhp two years back when h/c cars over 400rwhp were pretty rare.. Now I am making 480rwhp/495rwtq with these headers on my LS1 headed 436ci stroker.. I don't think they have a problem flowing.. Am I giving up a few peak hp/tq? Perhaps!

 

I agree Matt! But what I said was that you'd make more power - not "a whopping more amount of power." ;)

See what I mean? :D

JC

 

Yes, I do see what you mean on my 436ci stroker motor... But do I see or agree with what you are saying on a 340rwhp stock Z06? Nope.

 

Fair enough. :) So you're saying that a stock Z06 will NOT pick up more HP with a larger diameter LT than the TTS size? (Because, again, that's all I'm saying.) :confused:

JC

 

Matt? :confused:

I am truly interested in your feedback on this. I made my decision to go with TTS for the same reasons you point out. However, my decision was based on what seemed to be the consensus here on the forum that a stock LS1 would benefit more from TTS headers (vs. TPiS.) The prevailing mentality was that unless you went with a head/cam package, you'd be better off with TTS. A stock Z06 is merely a mild H/C setup, isn't it? (Just illustrating a point Z06 guys - no flames! ;) )

I do have plans to upgrade my engine and if the information I got off the forum is incorrect, I need to know! Specifically, I was going to a larger diameter header once I went to a H/C setup. Now I'm all confused! :confused: :rolleyes:

David, I hope you don't feel I'm hijacking your thread. I think this information is exactly the kind of feedback you seek, no? :blueangel:

JC

 

Since he already owns the TTS headers, why buy new ones for a maybe gain? That would result in a HUGE $$/hp purchase. IMHO, save the bucks and switch them over from your LS1. :yesnod: :yesnod:

 

thanks for replies -- but a 5 rwhp gain vs a 15 rwhp gain is important to me. If the gain is 12 rwhp then that is fine and i will install. I tend to agree with Matt, the low-mid range is a nice place to gain power. thanks.

 

All I can say is that the peak high rpm power difference between 1 5/8" TTS and 1 3/4" headers would be VERY minimal, if anything on a stock displacement engine, even with a heads/cam setup.. I think david is close with his statement of 12rwhp vs 15rwhp, but I have my doubts the difference would even be that unless you go to a stroker motor setup.

If I hadn't used these headers on my own car's setup, I wouldn't stick up for them as much as I have over the past two years.. Steve Cole designed these headers, and as much as I know most people despise him on here, he IS an automotive genius.. He did months of R&D to figure out the perfect long tube header for the LS1, and he didn't go with the smaller diameter tubes to save $10 on material costs. He liked what he saw with how the LS1 responded to the smaller tubes.. He many times told me he designed these headers for C5 owners that want to feel the power increase from the headers everytime they drove their car, meaning in the lower RPM.

I was a bit skeptical when I first got them when I was going with my heads/cam setup but I trusted Steve's opinion, and am glad I did.. I don't feel I was missing out on anything in the higher rpms, and I know my h/c package made more power than most in the lower RPMs and I have attributed that to the headers..

I was even MORE skeptical when I decided to keep the TTS headers and try them out on the ARE 436ci I went with last winter.. I was figuring I would lose a ton of power up top, but to my surprise I had some of the highest peak hp/tq numbers to come out of ARE with a motor like mine at that time.

I don't know what more to say.. People discredit them all the time due to their size, but these words are always based on no proof whatsoever.. No one has ever done a side-by-side comparison to prove what I believe wrong.




[Modified by MattG, 8:38 AM 10/23/2002]

 

Matt, great input. The advice from the speed-shop was based on them putting H/C on a C5 which had TTS-LT and the car made 390 rwhp, owner wanted more HP and they added another cam but dyno still showed 390 rwhp! -- they then added larger diameter LT and got 430 rwhp....thats why i am asking the question plus ZO6 H/C are relatively mild as compared to some of the big H/C and a stock ZO6 may not need all the extra flow?? thanks.

 

I think MattG has a setup where going to a larger diameter header
will produce over 20rwhp. You got the stroker, 480rwhp good rpm
and big cubes.

A proper sized header for a motor that size would be 1 3/4" or 1 7/8".

I agree that for stock head or just H/C car the TTS will work well.

 

David, IMO there is NO way ANY set of headers will outperform the TTS headers by 40 rwhp. Not sure an extra 1/8 will allow a cam to "breathe" another 40 either. Granted, us tuners do not have all the details of the cam swap of that particular speed shop. In the end if you get a Z06 save your TTS headers (and money) and reuse them. MattG's ride proves that TTS will not be the bottleneck of any future mods if that is what you are worried about. Opinions will vary on tube diameter and their advantages/disadvantages... which I might add have been going on since the term "Long Tube Header" was coined. Just don't let that be your decision for getting rid of your headers. If they look scratched, dirty, or whatever the headers are easily recoated for much cheaper than a new set. Good luck and hope you get that Z06:)


[Modified by billreid1@***.net, 10:15 AM 10/23/2002]

 

I have been debating on whether to go with the TTS or the TPIS headers on my 01 Z06. Reading this post has convinced me that I would prefer the TTS. I would rather feel the power daily instead of only during the occasional trip to the dragstrip.

If you decide to get rid of the TTS, let me know and I might purchase them from you. At a substaintial price discount from a new set I'm sure :yesnod:

Hope you make the right choice for you!

David

 

I'm very happy with my TTS headers... my engine is stock. I am currently looking into a H/C package (Hope you are reading this Matt :D ) and wouldn't even think twice about changing my TTS headers. Even if I had an LS6 and thinking of doing a H/C on it... i wouldn't budge.

Regardless, bigger is not always better. If that was the case, why not design a set with 2" primaries or 2 1/4"? It comes down to the characteristics of the engine we have in our cars and how to properly enhance the powerband that an LS1 and/or LS6 engine has. I think the TTS headers do a great job in this. Offering power in the most useable part of of the powerband. I think they were tuned right for a stock and mildly modified LS1/LS6. Can't go wrong with them IMO.

good luck


[Modified by johnnyC5, 9:38 PM 10/23/2002]

 

Hey Dave,

Still looking at teh Z's I see. I think an slightly used 02 is a good route to go.

I am just in limbo now....

Gary

 

If anyone is interested in a set of TTS headers, we have a set for 01-03 in stock and ready to go.