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View Full Version : Ve Throttle Response Improver



SSV8TE
31-01-2009, 07:50 AM
Gday lads,
I have been building my ute up for a while now and been doing plenty research about all the little things we can do to improve these highly restricted machines.
I know its a sin to search ebay but i have found these things:
http://cgi.ebay.com.au/SPRINT-BOOSTER-POWER-CONVERTER-VE-COMMODORE-HSV-UTE_W0QQitemZ370151426602QQcmdZViewItemQQptZAU_Car _Parts_Accessories?hash=item370151426602&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A1%7C39%3A1%7C240%3A1318
I know there are a lot of gimmicks out there but i have been researching that the throttle sensor takes too long to send the signal to the throttle body therefore delaying the time the throttle body actually responds.
This gives that lag feeling you get when you hit the gas pedal.
Was wondering if anyone has had any experience with these or a similar module.
Just trying to sharpen the whole running of my ute and really curious to see if anyone else has pondered this idea.

Cheers,
Andy.

steve_t
31-01-2009, 08:32 AM
I had a look at a few websites for it. Basically, it seems to shift the throttle voltage up so when when you're at 3/4 throttle, the ECU sees foot on the floor 100% throttle. This will make your SOP dyno feel like the car is faster and acceleration is crisper but what you've really done is compress the range of the loud pedal. It also makes it so there's no difference between the pedal being at 3/4, to the floor, or anywhere in between.
I wonder if this similar concept could possibly be tuned into the ECU. If so, you could make it so with the accelerator at half way, you have WOT - then the car would feel crazy fast but probably quite hard to find the point at which you maintain speed.
As for the claim that it sends the signal faster - the signal is electrical. Unless the unit bypassed something, it can't go any faster. If anything, an inline module that has to do some processing will make it fractionally slower, but it'd be too small to notice and the ramped up accelerator voltage curve would certainly make up for it by the seat of your pants ;)

sjhugh
31-01-2009, 08:34 AM
I don't know if we are talking about the exact same thing but I had mine adjusted in the tune.

SSV8TE
31-01-2009, 08:38 AM
Thanks lads ,
Along the exact same line of thought im in but worth an ask i suppose.
Electrical i thought was nearly instant. I thought maybe there are some safety features in the pedal to throttle body loop that are set to save detonation etc.
Thanks again,

Andy.

Devil CV8
31-01-2009, 08:45 AM
These were discussed a few weeks back and the general consensus was a tune is better. These modules need to be consigned to the same place as ss reductions cai and piggyback computers.

Oztrack Tuning
31-01-2009, 09:31 AM
Getting the VE "tuned' properly makes throttle response very sharp. I just tuned a dedicated race car and the throttle trace at the TB vs the pedal logged on Motec was drastically changed by the car having its calibration optimized.

neb
02-02-2009, 03:03 PM
oztrack and sjhugh, are you saying that this delay or throttle response lag can be tuned out?

cheers.

ADAM 26
02-02-2009, 03:29 PM
as far as i know its all in the tune.

maybe a bigger throttle body or modifying the stock one, maybe port, thinner blade, machined shaft may make a difference??

neb
03-02-2009, 07:08 AM
interesting as i have been told few times now that this can't be solved in the tune? I also have a bigger T/B. so, nope that hasn't fixed it? anyone else got some ideas pls, oztrack can you tune this out?

thanks.

HYMEY
03-02-2009, 08:49 AM
If it has been tuned mafless, and the ve table and ignition are correct it needs the fuel dynamics tables optimized. There is a table in there that works of g/s and if it is mafless it works off the 0g/s cell which is most probably why your car feels dead on sudden throttle movements. The response of the ETB is actually very fast.

Oztrack Tuning
03-02-2009, 11:12 AM
We seems to be talking two things here.
1. Pedal to Throttle body differences in cause and response.
2. Rapid throttle fuelling.

Both can be tuned to be better