Low end torque after mods
 

I installed post manifold tubes, K&N drop-ins, F.I. exhaust and F.I. test pipes. I feel like I'm missing some low end torque. The car does not feel like its pulling like it should. I have a Cobb access port for it but they dont have any maps. What would be the best solution? Thanks!

go get a custom dyno tune! should definitely help out

^^ +1

I'm thinking i'll just get them to use the access port i have and make a map for it. I just dont know where to go. I live in Charleston and the only place close is a place called Showzone...And to be honest it looks like a shack with old beat up imports outside.

I dont think you can use Cobb at all, They no longer support the VQ. Try UPREV.

they do.. but 09s only

It could be the test pipes and new exhaust affecting your low end torque. I may be incorrect, but freeing it up like that generally sacrifices low end torque for more power mid and up top. A tune could help, but it won't make too much a difference. Stepped headers help as well, but it's expensive and you already have test pipes. Cats may help build back pressure, but again you already have test pipes. M370,intake manifold is great for mid range torque, but not sure how well it does under 3k rpm

Thanks for the advice! I called Akuma Motorsports and they said they could make me an E-Tune that would free up a lot of my lost low end torque. They sounded pretty confident about it. I would take it to a shop but Charleston isn't exactly import heaven. All's we have around here are trucks and v6 mustangs with GT badges. The closest shop i would trust is about 6 hours away (Z1 Motorsports), so I'm going to use this E-Tune to hold me over until then. If this does'nt help even things out i may trade the test pipes for high-flow cats.

A tune will certainly help, but the lost power&torque low down is a by-product of test pipes i'm afraid :(

Someone correct me, but i only know the Motordyne pipe (ART) to actual combat this it's self.

Tuning is worthwhile, but i'd recommend you finish your bolt ons before getting the tune.

the art pipes just eliminate a little more rasp and the hiss... less backpressure = less low end torque.. theres no way to avoid it

Actually, they do, i've seen dyno's compared to cats and TP's, they do make more power/tq than cats and tp's.

making 2-3 more WTQ is not "combating" it IMO... but I know you gotta rep motordyne. :tup:

There is more torque with art pipes, than a test pipe for sure !

Hey, Sharif @ Forged Performance is in Marietta GA!! I wouldnt go anywhere else but forged for my Z!! He has tuned 100s of 350z, 370z and GTRs. Why go anywhere else?

-Chad

TerribleONE, i only rep companies who produce the stuff their marketing spouts :D Check BiltHamber.com for another example :)

Anyway, i went and grabbed the 350z pics, i know nothing's perfect and i don't think you can gain much, but gain instead of lose is always nice.

Deltas Vs stock cats.

http://i352.photobucket.com/albums/r...sStockcats.gif

http://i352.photobucket.com/albums/r...tockcats-1.gif

And for the gains over test pipes;

http://i352.photobucket.com/albums/r...DEARTPower.gif

http://i352.photobucket.com/albums/r...EARTTorque.gif

Go to 4.10:1 rear gears.

Torque multiplication is the gift that keeps on giving!

i have the exact same problem, the car sucks down low, but screams up top. i would love to get a dyno tune. but imo spending $700 to buy and uprev tuner + $300 for a dyno tune is completely ridiculous to gain a slight bit of torque back and a little throttle response. i kno i probably will go that route some day, but i just think $1000 is a real kick in the nuts to pick up 10whp and slightly clean up my afr's...

I have always thought of doing an engine tuning after full bolt-ons as serving two purposes. First, to eek that last bit of performance left on the table and secondly, to bring the car back to running at optimal efficiency, i.e. not to rich, not to lean.

I thought the same thing regarding the price. I asked my local UpRev tuner and he charged me 600 for the license + the custom tune. Do most local tuners do stuff like this and package it all together for cheap? Because I was surprised but i'm not going to argue with that price :D Sorry to go off topic. I just thought I would let you know I was debating the same thing but then that happened :P

The cobb helped my drivability and felt much smoother. I might have a map that was made by another member here, but I'll have to find it.

That would be awesome depending on what mods it was setup for.

I ran the map on a similar set up, maf tubes, drop ins, tp, and cbe. Ran fine and the drivability was much more responsive. You can always monitor afrs through your ap to check if it's safe. Pm me your email address, I'll check tonight

PM sent, +rep!

hmmm now if we only had an licensed uprev tuner in kc.... closest one is stl.... geez

You only need the tuner version if the shop isn't a licensed uprev protuner, any of the shops that are offering package deals like that are uprev protuners and just flash the license onto the ecu and tune it, this is good because its cheaper but bad because you don't get the uprev cipher cable to datalog etc. ($200 from uprev) You also can't flash the vehicle back to stock and sell the License/cable used later on if the shop does it. Tuner versions will sell for $5-600 and Standard $400ish in the marketplace.

If you want to pick up a copy of Osiris tuner PM me, I've got one I'll sell you for a lot less than $700 :hello:

email sent. Sent you 2 maps :tup:

Road trip Edub if you go to a tuner it wont cost you a $1000 bucks for Uprev.

Uprev license cost $300 bucks then you would pay labor for how long it takes to tune your car. So let's say a shop might charge $125 a hour to tune your car,and spend 2 hours. Your out the door for $550.

A Uprev tuner kit is cost $700 because it's for a do it your self allows you to tune plus data log.

hmmmm interesting... (btw mr squeeze, i'm kicking myself for not gettin your stillen sc kit...)

back on topic tho, it looks like i will be making a trip to stl soon

where are you getting tuned?