Ultimate Z1 Header thread
 

Christmas in August!!

Well here they are and these are AWESOME!!
if you want to see what gains are to be had for the Z1 headers I would suggest you subscribe to this thread!
while it is a few months out OCT 12 is install date I just wanted to let everyone know how I plan on doing this!
1. the headers are being ceramic coated next week to keep the temps down under the hood.
2.Monday Oct 12 there is going to be a dyno run before install.
list of my current mods on car Stillen Gen3 Berk HFC Ark Exhaust Ported Plenum tuned with UpRev last dyno done when car was tuned 320whp-268tq that was with M370 which is now gone and I have switched over to my ported stock plenum.
3.dyno run with new Z1 headers and HFC for baseline..
4.GoodBye uprev Hello ECUTEK im switching over to ECUTEK for hopefully more power..


http://i22.photobucket.com/albums/b3...1/IMG_1757.jpg
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in

Souls be around 345-350 my guess. Long tubes i think would net you more power, but that's could be up for debate.

Even high flow cats will hold back HP. It's going to be hard to see gains and what the headers could do.

As much as I would love to run the long tube headers I have to smog my car every year..I always see threads of people saying shorty headers yield no gains but never see a dyno to back it up..I have seen a dyno with stillen headers that netted 12whp.. If I can pick up 20whp with the ecutek tune and headers I'll be happy.2 months we will find out if they are worth the money or not!

I want say thank you for doing this. Can't wait to see the result.

here are some long tubes installed by Seb and a dyno run..long tubes picked up great mid range but 0 on the top end..

Z34 Header Test & Tune |


Stillen headers installed in a sedan with nothing else.. so their's proof that they can make power.

http://specialtyz.com/blog/?p=1697

Any vids? I wanna hear what this set up sounds like :excited:

No videos because in not getting this done till October...once they are installed I'll have lots of pictures of the install and pics on the dyno and before and after results

nice graphs.

You can use berk HFCs with the z1 shorties? I was told you can't..


-Raj

Is SZ doing the install and tune?

You made 301whp with 4.08 gears?

great thread!

thanks for doing this man...Id getting old and grey waiting for motordyne to do LTH so ive been tossing the idea of these shorties with the HFC....

Someone did/has PPE LTH with race cats (200 cell) but i can find these anywhere....so this would be a good back up for me I believe z1 HFC are 300cell

So z1 shorties work with berk HFCs?


-Raj

^ I think he bought Z1 HFC for the DE motors.

I wasn't sure, I just read he has berk HFCs lol


-Raj

I am running berks now but im switching to 350zDE Z1 HFC to match up with the Z1 headers..

I don't want to lose the hiss the berks have :)


-Raj

headers are out being ceramic coated ill post pics once I get them back next week

here they are back from being ceramic coated flat black



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http://i22.photobucket.com/albums/b3...1/IMG_2218.jpg



http://i22.photobucket.com/albums/b3...1/IMG_2217.jpg

Very nice,October must feel like a year away!

LOL Most definitely.but wanted to make sure that ECUTEK had my rom ready for my switch over.. also wanted to have the time to get all the parts and headers ceramic coated as well..
1 more month to go!

When is your tune date? Im interested to see what number you put up. Im going to talk to a tuner saturday to see if they are able to tune race rom II. i thinking about doing long tubes and e-85 tune.

Oct 12 is dyno on uprev tune and then flash to stock and dyno..
Install headers after that.
Oct 13 is dyno with headers and hfc on stock and uprev then retune to ecutek

So i just went down to talk with Harry at Z speed in sarasota. I wanted to discuss about going E-85, With talking to him, it was going to cost little more than i expected. So ill be sticking with 93 octane and tune with ecu tek race rom II. Im interested in comparing numbers, ill have basic bolts on's fi cat back, stilen g3s, fi lth, and fi 34row oil cooler. ill be tuned hopefully in dec,or jan. Far as he told me, a tune with uprev vs ecu tek with basic bolts on's shouldn't be to drastic,because the vvel won't really play into account much, since I'm not doing any head work just yet.

So i hope see your dyno sheet when i come back from korea in Nov.

T-minus 11 days....


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Im about to order my long tubes and oil cooler

Are you going with fast intentions..I would pay the extra and get them ceramic coated to keep those under hood temps down..
Are you going to do a before and after dyno?

Yes i may or may not, ill talk to F I when i place my order. Was it cheaper for you to get them coated on your own? Im getting dynoed after i install my long tubes. I dont feel like paying for more dyno time to get a baseline. All i have are FI tp, cbe, g3's. I would of done a baseline if he were to install my headers.

i didn't have a choice but to do it on my own Z1 doesn't offer the service to do it.. i did a lot of research on if it was worth it or not and asked some people that i know who have done it and they said to do it!
its worth the money you will see a good drop in temp by ceramic coating them.
i paid 190 to get it done..
i say pay for the extra dyno time its well worth it.you want to know if they made power though out the whole power band or not..you know how everyone bitches about why didn't you do a before dyno as well..
everyone says shorty's make no power but yet i provided 2 dyno of before and after of short headers from stillen that made 12whp up top and Fast intentions that made 0 up top but made great every where else..

I probably just do the non coated, if i want to cool down the engine temps ill figure a way to get air flow through, yea im going with fast intention long tubes and 34 row oil cooler. I dont really care about what others want, they wamt to see a before they can donate money to me lol, ill have a base tune with the long tubes on, then an after with a tune.

There is a post on here where someone did a before tune with test pipes cbe and g3s, its roughly around 298whp to 300 depending on your region and outside temps

Bump

Here are the baseline numbers with no tune
291whp and 233tq

That's with stock headers?

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is this with the Z1 headers and HFC but no tune?

Based on post 24, its OEM headers with factory tune. Or is it Uprev? Lol

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Stock headers no tune berk HFC stillen G3 and ark exhaust

It would have been done tonight but Z1 HFC were garbage we got a bad set so I had to overnight some berks.. So tomorrow I'll update

Damn that sucks chuckie, good thing is z1 is a good vendor and will make good. So noe its z1 heaaders and berks hfc plus ecutek?