jaydub

I will try to remember to do that before I put in my Optima yellow top... and after as well.

BrEaK_AwaY

what size yellow top are you getting? because i will be getting a yellow top as well

WeDriveScions

Not to pull away from the insane Grounding kit tendancy in this thread, but my throttle response cut WAY down after my megan header install with Injen intake. I almost flew out of my garage and hit a car cause I just touched the pedal and vrrrooommm. I'm considering a yellow top (half just for looks) and a nice looking ground kit, but I'm idling consistently now and throttle response is WAY better than my turbo golf with DBW, so I'm satisfied currently.

I'd seriously be cautious about DBW being too influenced by grounding... or "stronger" spark giving you faster throttle response. that computer is taking readings and performing throttle adjustments faster than you or I can even think about it... I bet it's more the engine's desire to get air/fuel and kick it out the other end that causes your delay.

At least that makes simple basic mechanical sense, outside of all the expertise.

I'm a big fan of a nice looking engine bay, so hit up the wires, grab an intake, and sport a nice header setup and walla! less lag!

matty-tC

why no red top?

WeDriveScions

If there's an optima Red Top application for the Tc, I might be game. The yellow tops have gotten more attention for the sport compact market, so that's where I'm leaning.

matty-tC

from www.optimabatteries.com

If your battery is used in vehicles that demand extra reliability and performance, or if you just take pride in getting the best performance out of your vehicle, OPTIMA RedTop batteries deliver the performance you demand.

matty-tC

from www.optimabatteries.com

If your vehicle has a lot of accessories like running lights, high-performance stereo/AV system, winches, or hydraulics, your vehicle demands more from its battery. OPTIMA YellowTOP batteries provide the extra performance and deep cycling capability that your vehicle demands.


it seems the yellow top is if you're running massive number of accessories.. i'd stick to the red top (as a matter of fact i installed my red top a week ago )

BrEaK_AwaY

what suze optima battery do we require? i wanna get a yellow top as well because of the sound system i am installing. (2) 700W amps, and eventually one amp for the speakers

matty-tC

didn't know there was a size LOL

get a standard optima yellow top. nothing else too it.

BrEaK_AwaY

isnt that like 75/35 or something like that?

matty-tC

yes

it's hard to find other sizes in stores

SPattle

I have purchased and installed a groundfusion grounding kit also. It acutally did seem to help a little bit. The change wasnt extremely dramatic but it was worth it IMO.

TougetC

i used the michoku uber grounding system, i built it myself. it cost me like 8 bucks and 20 minutes of my time. and well worth it, the lag is almost completely gone.

Dat_Dude

i think this delay is over-exaggerated. sure its noticeable by cable comparison but barely noticeable. i have no faith in the grounding kit having an effect on throttle response time. its one thing any good electrical engineer should know, any short comings in ground consistency could cost you your circuit design. in this case, the myth of grounding kit is just a bunch of bologna

Somnambulated

The sad thing is, a lot of people don't seem to know that many of the 'Custom' car products sold on ebay are from Home Depot and Ace Hardware.

"Custom" Kit Grill Mesh, for example.

lo_bux_racer

Here's what worked for me: a Fidanza flywheel. No more throttle lag at all, just nice clean heel/toe action and crisp shifts. The car does accelerate better too, and if you put it on an inertial dyno (Dynojet), it would say it makes more power even though it doesn't.

I too have no faith in any grounding kit, especially after seeing the numbers above. Less than a 2mV drop? Out of 14,400mV? Even as a percentage, theres a decimal an zeroes in front of that number. Just put antiseize on your ground bolts and call it a day. Oh, and if grounding is so big a difference for your engine, why not do the same treatment to all the positive leads? Certainly there are a few mV to recover there too.

yokillr

READ THIS!!!
Save your time and money.

tekstyle

http://www.honda-tech.com/zerothread?id=1931076

oh look. this isn't just a myth about TCs, but mazda's too. this doesnt apply to a lot of honda's (cable throttle) so there's' quite some bashing on grounding kits in the honda forums, but either way maybe this hocus pocus isn't bogus after all.

RodC

I know this is an old thread, but I was wondering if the same fix still applies to the '07 tC. I know there have been some little changes from the '05 up to the '07. I have an '07 and throttle delay is something which has been bugging me somewhat. Was it worse on the '05, or did Toyota just never do anything to fix it?

kungpaosamuraiii

It's still hocus pocus. Just because people from Honda-tech think somethings true, I'd be more inclined to argue the opposite.

See what lo bux racer said.