I am a new 2006 6sp owner (1 month) and I have noticed that there is a difference in the amount of throttle (gas pedal) pressure that I have to apply in order to get the RPM's to increase. Sometimes a little pedal pressure, sometimes it feels like I have to exert more pressure, to get the same effect.
I am used to the old Hot Rods ('85 trans AM and '94 Z28, both three pedals) that I think were more of a direct type linkage.
Is there some type of solenoid or linkage controller that I am just not used too?
The throttle is completely electronic, no cable at all, so the ECM has the ability to make all the decisions.
If possible I'd have another SSR owner drive yours and see if it feels like there is something wrong with it, or just find another 6-speed at a dealership and go test drive it and see if it seems the same.
If everything seems OK you might think about doing a Predator tuner or custom tune. There are all sorts of fail-safes in the stock tune (though fewer in the 6spd) that can be overridden with a custom tune.
Just my two cents. I know on an automatic SSR the tune really wakes it up!
I also notice it on the backside as well when after hitting the accelerator it also seems slow to idle down as well. To a large part it is going to be inherent with newer vehicles when comparing them to the old carb/link setup in my opinion. At least that's been my experience with a variety of cars over the years.
Seems less pronounced to me when actually driving and asking for the vehicle to respond vs. applying gas in neutral. Maybe some tuning can take some of this out as has been mentioned. I don't have any experience trying that but I would think you're still going to have some lag when comparing to the old school vehicles.
Looks like I need to get on board with this PCM stuff. I know there are alot of threads about this on the SSR board so I guess I need to get started reading.
* When you get the custom tune are you in essence receiving an overall performance enhancement of which a number of settings are changed and enhanced?
* Are there specific things you need to ask for when having this done?
* Does this void the GM Warranty if you still have one in affect?
* Thought I read some keep their original unit and purchase a new custom tuned one and others simply send theirs and have it updated and returned.....pros/cons?
* When you get the custom tune are you in essence receiving an overall performance enhancement of which a number of settings are changed and enhanced?
* Are there specific things you need to ask for when having this done?
* Does this void the GM Warranty if you still have one in affect?
* Thought I read some keep their original unit and purchase a new custom tuned one and others simply send theirs and have it updated and returned.....pros/cons?
- Yes. I had my 6 speed done by Joe when I lived in Vegas. He used HP Tuner SW. A few of the things I remember his tweaking: increased injector pressure, timing, temps at which the cooling fan comes on and I think it comes on at the high speed only and bumped the speed limiter up "a little." I know I'm missing a few things but it certainly made a difference...MPG went up a little too.
- Warranty is a gray area. Someone told me that the average dealer doesn't have the ability to see if the ECM has been reprogrammed. Even if they had the ability to download it, could they recognize the changes? The tune Joe gave me was nothing radical.
- My concern is taking the vehicle in for a warranty claim and they have to either replace the ECM or reprogram it and I'd loose what I have. When Joe tuned mine I got the factory tune and the tune he designed on a thumb drive. Since I'm keeping my truck for the long term, I'm thinking of buying the HP tuner software begin to familiarize myself with the process. Being a old carburator guy, I was amazed to see Joe do his magic.
- I had similar issues as you when I bought my truck. It had 34 miles on it when I left Greenville SC with it. A week later I pulled into my Las Vegas driveway with 3400 miles. A week or so later Joe was in Vegas doing a tune on SSR that recently had a true dual system installed and a blower. This was the first time I met him and he told me to pull the fuse that keeps power to the ECM for 10 minutes. Can't recall the fuse number but if you run a forum search you'll find it and what it does to the ECM. The main thing this does is it resets to the factory high octane fuel curves (advanced timing.) In my case it made a difference. I got the tune a few months later.
In response to Bagger. I pulled the fuse (#27 I think per owner's manual) for the reset when I removed the MAF filter, so I inadvertently got the effect that you are talking about, but for a different reason.
A retune sounds like the way to go. I am considering (very likely) of changing the rear end ratio to a 4.10. Just trying to make it a little better. Will a retune be required after this change?
Does anyone know of a referral in the Atlanta, GA (North) or North Georgia?
Last edited by drjdlundy; 02-14-2010 at 06:37 PM.
Reason: spelling
In response to Bagger. I pulled the fuse (#27 I think per owner's manual) for the reset when I removed the MAF filter, so I inadvertently got the effect that you are talking about, but for a different reason.
A retune sounds like the way to go. I am considering (very likely) of changing the rear end ratio to a 4.10. Just trying to make it a little better. Will a retune be required after this change?
Does anyone know of a referral in the Atlanta, GA (North) or North Georgia?
You will need a retune for changing the rear gearing, as the speedometer calabration is in the PCM. A tune will help wake it up! I have tuned mine, but the most increase I got was when I ported and polished my throttlebody and removed the torque management built into it. Now mine needs very little throttle to get a response out of it. It now responds more like a old carb setup, instant!
My SSR: 04 UV, BOD 2-18-04, SN 5550, lots of polished billet, Superchips, K&N - Previous 03 and 05 owner
Quote:
Originally Posted by drjdlundy
In response to Bagger. I pulled the fuse (#27 I think per owner's manual) for the reset when I removed the MAF filter, so I inadvertently got the effect that you are talking about, but for a different reason.
A retune sounds like the way to go. I am considering (very likely) of changing the rear end ratio to a 4.10. Just trying to make it a little better. Will a retune be required after this change?
Does anyone know of a referral in the Atlanta, GA (North) or North Georgia?
Hi drjdlundy,
I use a handheld Superchips programmer for mine.
But a friend of mine has an 09 Challenger and I went up with him to a dyno day at Injected Engineering: Welcome to Injected Engineering up in Atlanta. They work on many different vehicles and seem to have a good reputation in the performance world. Not really in the North GA area but I was impressed with the shop and employees so thought if you were in the market for a custom tune you might want to check them out.
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