You took off your ported plenum and 4.08 gears?

Lol we have so many questions!

Yes ported plenum and 4.08 gears as well..

Unfortunately z1 HFC will be returned and I had to buy the berks else where as they were out of stock and only had Kintex which u didn't want

What's the difference in mods with the 301 whp in your sig compared to your 291 whp today?

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no change in mods.. that dyno that was done today is no tune..we were getting a baseline for when we dyno tomorrow with headers and berks HFC..we are getting true numbers on if the headers and hfc make power over stock headers

Cool! I really hope you get your goal of +20 WHP tomorrow. best of luck.

sweet ready for updates

Parts just arrived Seb is working on it now will update in a few hours with some numbers

Here are the results 307whp and 237 wtq no tune

Nice so far!! Mind I ask how long was the install for the shorties?

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Would you mind posting some of the graphs for comparison. Id love to see where the powers being made and if there's any lose in the lower rpm band.

I'll have Seb email me the files when we are done most of the power was all top end
It took Seb 4 hours to install them

When is the ecutek tuning coming

I'll post dynos tonight when I get back home.. But I can tell you the switch to ECUTEK is worth it.. The throttle response is 100 times better than uprev

I gained through out the entire power band with ECUTEK but only 3 on the top end so 310whp

291 to 310...not bad at all.

Are the collectors 2.5" when mating to the cat or TP?

Not bad not bad....looking forward to the dyno plot... I may skip headers and do art pipes

here it is
Red is stock header Gen3 Berk HFC Ark Ported Plenum 4.08 gears no tune
Blue is Z1 Headers Gen3 Berk HFC Ark Ported Plenum 4.08 gears no tune
Green is ECUTEK tune Z1 headers Gen3 Berk HFC Ark Ported Plenum 4.08 gears




http://i22.photobucket.com/albums/b3...1/IMG_2406.jpg

this is my ECUTEK tune vs no tune with mods below
Z1 Headers Gen3 Berk HFC Ark Ported Plenum 4.08 gears


http://i22.photobucket.com/albums/b3...1/IMG_2404.jpg

and your welcome!!

so now we can say shorty's make POWER!!!

somebody else proved this a while ago when he got 342whp. during the time frame where ecutek guy on this forum was hiding. which mean it was done with Uprev.

all my gains for the headers was done with no tuning..
You know since everyone always says Shorty headers make no power!

I just got my.long tubes in, i cant wait to compare

i'm a little confused, but it may be cause it's 8:30am. what was your final whp/tq after the tune?

Must be because it 8:30..lol
if you look at my Signature its in there or look at post 61 thats my final numbers ECUTEK tuned

I go for tune on the 20th. I'll be tuning on uprev, since my tuner is still waiting to hear back from ecu tek. I'll just have basic bolt on's FI Lth's, FI Cbe, Stillen G3's. Can't wait to compare sir.

Elmo who will do your tune in FL?

Sub for the results thinking of doing headers too.

But undecided whether long tubes or shorties.

FI seems to be interesting.

The install isn't crazy hard, some things are a pain in the arse to get to. Im going to see harry at z tuners. Have you heard of hin

No haven't heard any reviews from him or Z tuners.
Waiting for the result of your project

He is highly recommended. Ill.post the results when i get tuned

Stupid question time. Besides pairing the headers to the cats, did you have to remove any bolts from underneath the car or all can be done from above.


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The LTH's are installed from under the car. Alot of the nuts and bolts you have to get to from under the car. If you got the Z up about 2ft. you should not have too much of a problem.

On my way to get tuned shortly, be posting later tonight

gotta wait to sunday, uprev didn't mail the license over, darnit.

Well i didn't make the numbers i expected, i made 316whp tuning with uprev. My baseline was 311whp with all the bolt-ons before the tune. I made my power in the mid-range like expected. He compared my graph to another Z that made 313whp, and the gains were very noticeable throughout the entire power except in the top which doesn't really matter to me. This is it until next year when i build my top end, hopefully i can save enough money to purchase a dry sump to move the rev limiter to 8,250.

316 is nothing to sneeze at , I'm sitting at 302 before my headers , what was the WTRQ? I Would bet $$ you mak over 320 with ECUTEK. But still very good numbers man!

I'm excited to transform my Z and get a long tube headers. I'll be selling my ArK HFC if this plan goes through.

Ecutek would be an option for tuning for me.

No im happy with it. 3rd gear was breaking loose, never happened before. Trq i believe aroubd 260 ish, the senor kept moving around so i couldn't get an accurate number. I plan on finding a shop that does ecu tek next year. Cheers man.