Need opinions on tuning options

.c2

Hey guys So my car has been runny kinda funky lately and I think the AFR's are way out of line, so getting a tune within the next week or two. Narrowed it down to two options, I hope some of the more experienced members here can help me out! I know next to nothing about tuning lol

Current bolt ons:
-Unorthodox lightweight crank pulley
-AEM CAI
-ART test pipes
-T1R catback


Going for an Uprev tune with dyno sessions; so far my two choices are :

1) Intecracing @ seattle. $650 for a 2 hour dyno session, and the standard package (license, cipher cable, software)

2) Monkeynutz racing. $550 for a 1 hour dyno session and a license, nothing else.


My main concerns are if a 1 hour dyno session is enough to get a proper tune? And with option 2, I don't get a cable or software for it, only a license and a tune. They said I would be able to load maps onto my car if I just find a cipher cable elsewhere. Is there an actual uprev module, or is it just the cipher cable? Is it also possible to buy that cable/software separately?


Thanks in advance

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sparky

Sub'd for the results. No one in Van to do this?

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Dynotronics1

really dumb question here; why not jump on the GB, let us send you a cable and software, and get a custom calibration for your car, along with lifetime free updates?

nogoodname

A bunch of people I know have done option 1. It took longer than 2 hours but they weren't charged more. Up rev dyno tune is the best tuning I find.

Chuck33079

For an extra hundred bucks I'd get the cable.

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Dynotronics1

dyno tuning alone IS not the best tuning you can get, sorry to disagree. But dyno only, even on a GOOD load cell type dyno works only on the open loop side, and leaves the closed loop, where you spend the majority of you time, and transition alone.

You need a complete drive cycle calibration, then, if you are a diehard, and wish to spend the money, dyno time to touch up the high end open loop cycle

If done this way, you will end up with a much finer, more drivable calibration.

However if all your looking for is hp numbers, strap it to a dynojet, clean up the open loop fuel, and go

elperuano

Dyno tuning consists of more than just WOT tuning. A good tuner will smooth out the entire low and mid b range power as well. If done correctly a Dyno can simulate Street driving at low mid and full throttle and smooth everything out and then make big pet at the end.

Motion Lab

Option 1 seems like the better deal, but I always look at experience not price when it comes to tuning. Bad tuning, especially VVEL which can cause a catastrophic failure if pushed too far in one direction, can cause major issues short term and long term on your Z.

Also when you have a loaded dyno you can simulate driving down the road. I dont understand why you say you can only tune open loop fuel tables on the dyno?

Thanks,
Alex Goodwin
AlexG@motionlabtuning.com

DarkJak

Between those two, I'd definitely go for option one. At the very least you could sell the cable, but 2 hours is definitely a huge plus vs just 1 hr.

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Dynotronics1

simply because you cannot simulate a true drive cycle unless you have a programmable rolling road type dyno.

370Zsteve

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370Zsteve

I was just thinking about this now that a vendor has come up with VVEL tuning (and I heard rumor that Uprev has it in the works, too). Seems to me that messing with VVEL has the potential for 'issues'. You'd better have a damned good tuner if you want to start messing with it.

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SOLD MY Z MARCH 2018 - another Core OG moves on - new ride 2019 Z Corvette Grand Sport - no mods necessary but already have eyes on HFC and intakes LOL IT NEVER ENDS.

Sh0velMan

This.

You can't simulate a true drive cycle without a rolling road in a wind tunnel. Period.

(Professional, big budget) Race teams do exactly this. The rest of us road/track tune.

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Motion Lab

We do it to every Z on our dyno, really helps fatten up the power band .

Thanks,
Alex Goodwin
AlexG@motionlabtuning.com

Dynotronics1

VVEL, or VVT? Just want to clarify this