Throttle Performance Switch!!!!!!!!!
Thread Starter
Race Director
Joined: Aug 2002
Posts: 13,356
Likes: 0
From: tucson AZ
St. Jude Donor '04 & '05
Throttle Performance Switch!!!!!!!!!
Corvette Central has this switch at $99.95....should be worth it.....right....
I used one on my '84 vette....worked great....
So what do you guys think.....
VooDooooooo or what......worth the bucks $$$$$$$$$$$$$$
Let me know...
thanks
tony
:flag
I used one on my '84 vette....worked great....
So what do you guys think.....
VooDooooooo or what......worth the bucks $$$$$$$$$$$$$$
Let me know...
thanks
tony
:flag
Thread Starter
Race Director
Joined: Aug 2002
Posts: 13,356
Likes: 0
From: tucson AZ
St. Jude Donor '04 & '05
Re: Throttle Performance Switch!!!!!!!!! (flyersfan1088)
Are you sure????????????? Like have you tried it?????
Please let me know.....or did you see what someone else has said?????
tony
:confused:
[Modified by oldace84, 12:33 AM 5/17/2003]
Please let me know.....or did you see what someone else has said?????
tony
:confused:
[Modified by oldace84, 12:33 AM 5/17/2003]
Melting Slicks
Joined: Jan 2003
Posts: 2,167
Likes: 0
From: What did the 5 fingers say to the face? SLAP!!
Re: Throttle Performance Switch!!!!!!!!! (oldace84)
Yes, I'm sure. At 60% throttle the switch fully advances spark and fuel curves, just like stock at WOT. Just push your pedal to the floor and save yourself $100.
Do a search. This was discussed less than 2 weeks ago
[Modified by flyersfan1088, 2:45 AM 5/17/2003]
Do a search. This was discussed less than 2 weeks ago
[Modified by flyersfan1088, 2:45 AM 5/17/2003]
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Throttle Performance Switch!!!!!!!!! (oldace84)
On an L98 you would get the same efffect by advancing the TPS base reading from the stock .54Vdc to .65Vdc but I'm not sure about a L83.
If you have a TPS try advancing it till it throws a code, then back off a few mV; advance the base timing till just before the ECM pulls timing at WOT.
If you have a TPS try advancing it till it throws a code, then back off a few mV; advance the base timing till just before the ECM pulls timing at WOT.
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: Throttle Performance Switch!!!!!!!!! (oldace84)
All that swtch does is sends the cmoputer a false WOT voltage once you reach a certain throttle opening. Effectively the computer will go WOT but your throttle won't be open all the way. You'll have full fuel and spark advance but you won't have full airflow. All that thing is going to do is make your car run richer and therefore waste gas. Feel free to try it though.
Le Mans Master
Joined: Aug 2000
Posts: 5,192
Likes: 1
From: Airport Cruise-in 1 Veteran Airport Cruise-in 2 Veteran
Cruise-In II Veteran
Re: Throttle Performance Switch!!!!!!!!! (oldace84)
oldace84,
You already have my answer from this thread..
http://forums.corvetteforum.com/zerothread?id=551646
If you say it works for your 84 then maybe this thing only works on certain cars or there could have been a batch made that were mis-calibrated. I still have the Throttle Performance Switch in my parts bin. If anyone from Chi-town wants to test this thing out on your car let me know by IM or e-mail. It's good for cars 85-91. This is not for sale, I would just like to see what engine configurations this works with. I already know this won't work on the 87 and 90 cars.
-John
** It would be interesting to know if those w/o an adjustable TPS can elongate the bolt holes to make it adjustable or replace it w/ an adjustable TPS w/o setting any codes.
You already have my answer from this thread..
http://forums.corvetteforum.com/zerothread?id=551646
If you say it works for your 84 then maybe this thing only works on certain cars or there could have been a batch made that were mis-calibrated. I still have the Throttle Performance Switch in my parts bin. If anyone from Chi-town wants to test this thing out on your car let me know by IM or e-mail. It's good for cars 85-91. This is not for sale, I would just like to see what engine configurations this works with. I already know this won't work on the 87 and 90 cars.
-John
** It would be interesting to know if those w/o an adjustable TPS can elongate the bolt holes to make it adjustable or replace it w/ an adjustable TPS w/o setting any codes.
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Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Throttle Performance Switch!!!!!!!!! (Rays91L98)
On the '85-'89 L98 the TPS mounting holes were slotted and so adjustable; on later L98 it had only two round mounting holes which provided for no adjustment. I have heard that on the later L98 the ECM would read the TPS position at base idle and at WOT to determine these settings dynamically.
Advancing the TPS base value to .65Vdc on the early L98 provided for crisper throttle response due to more fuel and timing at part throttle positions.
I would measure the values at the connector; now I use a scan tool.
Advancing the TPS base value to .65Vdc on the early L98 provided for crisper throttle response due to more fuel and timing at part throttle positions.
I would measure the values at the connector; now I use a scan tool.
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Re: Throttle Performance Switch!!!!!!!!! (oldace84)
Bought one for my 82. Sold it about two years later to the next sucker. Absolutely no difference before, with and then without.
Like said, the ONLY thing it does is tell the ecm that you are at full throttle when you are at 3/4 throttle. Just "punch it, margaret".
Like said, the ONLY thing it does is tell the ecm that you are at full throttle when you are at 3/4 throttle. Just "punch it, margaret".
Pro
Joined: May 2003
Posts: 671
Likes: 1
From: WATERFORD CT
Re: Throttle Performance Switch!!!!!!!!! (oldace84)
I know what all you guys are saying and I agree but I swear I saw a dyno test for this thing in Corvette Fever or Vette magazine a few years back on a 84 and the car GAINED POWER . But you cant belive everything that you read I guess.
Thread Starter
Race Director
Joined: Aug 2002
Posts: 13,356
Likes: 0
From: tucson AZ
St. Jude Donor '04 & '05
Re: Throttle Performance Switch!!!!!!!!! (oldace84)
I'm still using the switch on my '84........soooooooooooooooooo....it works Ok!!!!!!!!!!
Thanks for all your wonderful input.....
thats what makes this forum the best.....
tony
:cheers:
Thanks for all your wonderful input.....
thats what makes this forum the best.....
tony
:cheers:
Drifting
Joined: Apr 2000
Posts: 1,915
Likes: 0
From: Maurice, LA
Re: Throttle Performance Switch!!!!!!!!!
Nah, i wouldnt waste my money on that. Check out http://www.crossfire.webhop.net for crossfire tuning. You will get MUCH better results!
