zachcrosen

I dont know if a dead spot is the proper word for what I am seeing with my car. I have around 700 miles on my '08 GT. I have noticed that when I slowly accelerate in first and second gear that I have a blip or dead spot around 2750 RPMs. It is not noticeable under hard acceleration. My previously supercharged 350Z did this but it was remedied by a tune if I remember correctly. Anyone else experience this? If so, what was done to remedy this? I do not have any mods yet as I have only had the car for 3 weeks.

Zach

grampa_stang

You could try disconnecting the battery for 15 mins or so to reset the adaptive learning.

D_Gusler

Ehhh, could possible be something tune/computer wise, also could be a computer/tune issue with the VCT

ski

A tune from one of the major suppliers(BamaChips, Brenspeed, Tillman, etc.) should eliminate it. It did for mine.

zachcrosen

I figured a tune would take care of it. I don't think I will worry too much about it until I get some mods that require a tune.

zachcrosen

Just to update on this. I installed a JLT CAI and 93 tunes from Brenspeed a few weeks ago and still have this spot. It is no where near as bad or obvious, but it is still there nonetheless. I think I am going to email Brenspeed and see whta they say about it.

Yonco

Welcome to the lack of torque at low rpm of the 3v. Anything under 4k isnt going to have that "immediate power" Even going from a mild 302, the sotp torque loss at low rpm on these engines is amazing. A tune helps, and a set of gears helps even more. -Jon

ski

Agree that the 3V 4.6L engine lacks low rpm torque. However, the stock tune does cause a noticeable flat spot at approx. 3K rpm when accelerating moderately, and this can be considerably reduced or possibly eliminated with a custom tune.

stang910

There's nothing wrong with your car. All stock GT's do it and a tune hides it some. Don't know for a fact, but I'm pretty sure what your feeling are the charge motion control plates opening. Ask some people that have delete plates if they still feel that break up in acceleration. My car no longer feels like that and my guess is cause I no longer have those plates.

sccaii

Factory tune on all GT's is set with RPM switch @ 2750rpm for electronic throttle control that won't allow the throttle plate to open more than 40% regardless of your foot. Removing via tune does improve however depending on how the plates were modified and time maps on ones tune the car may still feel "underpowered" below that RPM. Fact is these motors wake up in the 3500 - 4000 rpm range.