here is a before and after dyno on my Z06 before and after the adding the headers.

at this point the car had a vortex and air coupler for mods, mileage was 2400
http://home.attbi.com/~pschilt/dyno03.jpg

they TTS headers didn't add much imho, but combined with the x-pipe they added 14 rwhp. however i am running stock catbacks. i could probably pick more if i switched those out. regardless with the TTS headers on a stock car not much will be gained vs. the cost per dollar. they did help my rich condition at WOT. like i said in my original and Nate verifies they are a greater set of headers for quality, but when it comes to install and design save your money for something they don't justify the extra cost.

 

were those dyno numbers Stock vs (TTS+Vortex)
or [with Vortex] vs. [Vortex +TTS]?

 

[with Vortex] vs. [Vortex +TTS]

 

thank you for posting dyno results on the TTS headers. the "area under the curve" doesnt look too promising...

if you want the best header for the money, go TPIS or Stainless Works. Stainless Works headers offer better quality over TPIS, and almost the same money.

Belangers? having mixed thoughts on these. on our last install w/dyno, we were disappointed. very disappointed...

best all around for power and ease of install? FLPs. no cutting or modifying, cats, off road pipes and x pipe included.

ps- readers, please take note, i have personally tested the TTS, TPIS and FLP headers on my car. info you get from me is not Gospel, but very truthful. i plan to try the Stainless Works headers next!

Nate

 

thefly,

A peak gain of 14 rwhp / 15 rwtq from the TTS LTs....... ..... i would say your peak value is at about the 5K mark, in other words, your MAX values.

if u look closely at your dyno chart....

you made a bigger difference in Torque between 2900 rpm to 5000 rpm, i would say about 20 rwtq, if not slightly more!!!

look at how fat that portion of the graph looks from just the TTS headers!!!! that is the most usuable part of your powerband!!!
big difference to me for area under the curve from just the addition of TTS LT headers.

that seems pretty decent to me

how much were u expecting to achieve?


[Modified by johnnyC5, 3:59 AM 11/14/2002]

 

You guys made me go pull out some old dyno sheets from So. Cali dynoday #1 and #2 (2000 & 2001) at R&D Dyno. This is the dyno results of jam999999 A4 Vert 99 22,500mi (mods, vortex, Borla XR1, GMS MAF, Powerloader, 2600 Vig T/C) Dyno Day #1, 308rwhp/326rwtq

Dynoday #2, 32,561 mi (mods, Tpis LT Headers, vortex, Borla XR1, GMS MAF, Powerloader, 2600 Vig T/C) Dyno Day #2, 314rwhp/331rwtq

Same dyno and the only additional mod was the addition of the TPIS Headers. Do the math, we could not understand why such a small gain.

That was one reason, I decided to go with TTS! My results would include different gear, T/C. But the closest I can guess is that I picked up approx. 12-14rwhp and torque.




[Modified by wallstAL, 11:53 PM 11/13/2002]

 

johnnyC5,

i would have expected more from the header, keep in mind an x-pipe was added at the same time. i know that usually nets 5-6 rwhp. the torque response afterwards is a lot better especially at low end but expected 5 more rwhp and rwtq.

and i am very happy with my headers, and yes they do make great numbers but when you add up the cost of install + cost of the header. the value just isn't there. plus add in the faulty design with the dipstick is why i wouldn't recommend them. when i bought them there were only two choice, now there are many and at a cheaper cost. that was my point.


[Modified by thefly, 7:11 AM 11/14/2002]

 

A 14rwhp peak gain from a set of long tube headers is very respectable in my opinion, especially with no air/fuel tweaking.. Most 1 3/4" tube headers I have seen usually net around 10-12rwhp peak gains, and aren't these larger diameters supposed to net more peak gain at higher RPMs?

Nate, I know you feel the larger diameter primaries are much better, but you have no info to back this up.. Sure you have installed many sets of headers on your cars, but I know you have never done a back to back comparison of any type and are only going by what your SOTP meter tells you, which in my opinion is not valid data. If you are telling me your SOTP meter can notice the difference of 4-5rwhp/rwtq, then you would never have a need for a dyno. I do however agree with you though that the Stainless Works headers are an excellent product as well.

All I know is that my car with TTS headers has always produced very competitive peak HP/TQ numbers and above average lower RPM TQ numbers as compared to other cars with very similar mods.. This is when I had heads/cam and even now with my stroker motor.

 

I have an 01 and don't remember Mike Norris saying anything about the dipstick when he installed them. It could just be part of the routine install. The TTS's were chosen over TPIS, because at the time, last December, TPIS was having several issues with their flanges cracking. I have been happy with the TTS headers. I'm sure they helped bring me into the 11's.

 

MattG- actually, the dyno shows only 9.6hp and 8.5trq gain from the headers. the owner added an x pipe later and states he got 5 more hp from it to make it a total of 14hp gain.

do you honestly think SOTP does not matter? if a customer buys an intake that has been tested to show gains of 15hp on the dyno, the customer installs it, and doesnt feel a thing, do you think he will keep it and not send it back??? will he be happy with his purchase??? i dont think so... SOTP is very important.
here are my thoughts when i swapped the TPIS for the TTS:
the install was the worst ever. removing the starter, lifting on the motor on both sides and the dipstick issue is something not necessary with other designs. 02 bung locations were not well thought out either.
okay, so after the bs with installing the TTS, i take it for a drive. im not impressed. after a week of driving, i can tell the top end is suffering and it feels like the motor cannot breathe. bottom and mid range feel the same between the two headers.

i will say the TTS are well made and may offer competitive gains over some of the other brands, but for 1250.00, they are not worth it! my opinion only.

Nate

 

I really like mine, did the install myself. It wasn't that bad. They are a very tight fit but once in place every thing was perfect.

 

i am sure your install wasn't that bad, 2001 and up seem to be the problem due the dipstick relocation.

 

thefly,

i hear what you are saying.... $$$/hp isnt the greatest, but i find that with headers in general. If it were not for the quality issues from the TPIS, i think i would of looked at those. FLP are nice, but expensive. I cant really comment on the Stainless Works, but i hear they are good.

the mechanic that installed mine said they were challenging to install. Also, the dipstick had to be relocated, but that took him literally 10 mins do to!!! all he did was spot weld the dipstick bracket to the new location. I like the new position better actually.

when i bought my TTS headers, a "weld-in" X-Pipe was packaged with it. see link(s):
http://www.exit28motorsports.com/c5_xpipe.html http://www.exit28motorsports.com/c5_tts_longtubes.html

there is a good deal for Forum members at Exit28.

As I posted earlier,


[Modified by johnnyC5, 8:11 PM 11/14/2002]