'09 370z Tuned with EcuTek by Ptuning with numbers

njobe89

beat me to it
beat me to it again lol


tp's offer a little more power then hfc. so that might be the only place where he could pull out a few more whp. saying he would get 10-15whp is far fetched. he might get 4-6whp more.

still nonetheless those are nice numbers at 335. seems ecutek is able to provide more power then uprev

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2 plus 2 times 2 = ? ... hint, it's not 8

Stillen CBE, Stillen Gen 3, TP's, Uprev tuned - 324whp/264tq

FPenvy

yea I mean in freak situations it's possible but likely? not at all.

335whp on a dyno-dynamics seems high to me as well. maybe if it was dyno'd at Z1 lol

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sixspeeddemon

I'm not disagreeing with anyone but I think some of you are thinking of just bolt on and going. I was saying with the combo of LTH and retune should net about 10whp. And I also said every car is different but honestly if it in all seriousness made 2-4whp why would someone spend 900-1500 for LTH plus install if they can't do it themselves for 4whp. LTH 99.9% outperform shorty any day. I agree with the bolt on might gain 5whp with a retune i don't see why it wouldn't or why it couldn't pick up 10whp over the hfc. On my civic I had i had LTH with Hfc when I switched to a better flowing LTH without cats my car gained 7whp without tuned and another 4whp with a tune. So it possible it's really all in the tune. I do agree that when it comes to NA build its harder to make big whp gains after the basic bolt ons are there but people tend to figure that the flow rate of you intake and exhaust systems plays a huge roll on power the better the flow the better. But I'm glad we have a better tuning software now as well that alone can help make power by itself


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Mozen

Who knows, perhaps it would.... However I'm near the limit of things to do and you hit that wall of diminishing returns. Only way to know would be to buy some lth and test at this point but....not in my build plan sorry.

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sixspeeddemon

I understand that. Not knocking your build at all and I can agree with you on diminishing returns.


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njobe89

you're* lol
of course man, everyone has an opinion. it's what makes the world go around. you also had your car for awhile so it plays out in your favor. looking forward to the boost build
because it's a 370z, it's hard to get a big gain out of it like that. i think switching to e85 can get you about 10whp or so i've heard.

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2 plus 2 times 2 = ? ... hint, it's not 8

Stillen CBE, Stillen Gen 3, TP's, Uprev tuned - 324whp/264tq

Nick M

I think you're tossing around apples and oranges.

I had a b20 vtec, ITB'd civic myself in the past, and a small change, retune, or better bolt on absolutely delivered a measurable difference in whp.

The VQ is not that animal. Its not a B or K series, its not an LS, its not a coyote 5.0

The VQ in these cars is already towards the end of its efficiency, and they absolutely see diminishing returns with bolt ons. I would personally never even bother getting headers for this car, short or LT. It's not personally worthwhile for the cost for the return. I'm aware that most of the header products available are "off the shelf" and not a completely custom, refined for 15 years piece like a Hytech, or RMR or whatever is out there for other platforms. Sure a shop like a Hytech could slave over a set of headers to extract every drop of HP out of the VQ, but they would retail for an enormous amount of money when they were done.

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