No hole in accufabThrottle body, having problem with idle - tuning
11-23-2006, 10:17 AM
#1
No hole in accufabThrottle body, having problem with idle - tuning I have a 01 SS M-6 camaro,
With a stock motor , FLP headers , Y -Pipe and 3" SLP SS duel duel exhaust on the car.
I just installed a D1-sc Twin intercooled Procharger system this past summer.
My tunner , tuned the car perfect with a safe A/F and running Methanol.
cars pulls hard to stock red line 6,200
Car idles good , but to come off the clutch at a stop light it has a hesitaton, dead spot, and if you know what i mean i have to wake it up, give it gas to get it out rolling so it dont drop RPM and stutter -stall.
The RPM will Drop and it sometimes stalls, Its been hard to drive because of this,
otherwise when crusing its fine.
My tunner is Great, and knowes what hes doing, but i just told him that i have a Accufab stock size Throttle body on the car,
I noticed when i got the Accufab 75mm T-body that there is no hole in the throttle blade.
And that my IAC value is 11-15 at idle now, where with the stock throttle body it was zero i think.
Do i need to drill a hole, ?
Why is there not a hole in the blade, like a stock throttle body has?
We did not spend that much time to figure it out , But we are going to figure this out after the holiday , monday
Help
thank you
With a stock motor , FLP headers , Y -Pipe and 3" SLP SS duel duel exhaust on the car.
I just installed a D1-sc Twin intercooled Procharger system this past summer.
My tunner , tuned the car perfect with a safe A/F and running Methanol.
cars pulls hard to stock red line 6,200
Car idles good , but to come off the clutch at a stop light it has a hesitaton, dead spot, and if you know what i mean i have to wake it up, give it gas to get it out rolling so it dont drop RPM and stutter -stall.
The RPM will Drop and it sometimes stalls, Its been hard to drive because of this,
otherwise when crusing its fine.
My tunner is Great, and knowes what hes doing, but i just told him that i have a Accufab stock size Throttle body on the car,
I noticed when i got the Accufab 75mm T-body that there is no hole in the throttle blade.
And that my IAC value is 11-15 at idle now, where with the stock throttle body it was zero i think.
Do i need to drill a hole, ?
Why is there not a hole in the blade, like a stock throttle body has?
We did not spend that much time to figure it out , But we are going to figure this out after the holiday , monday
Help
thank you
11-23-2006, 10:50 AM
#2
I would try and adjust the TB blade first to get the IAC's in line before I drilled a hole. If you want to drill a hole, then I would make the same size as stock, but only after you try and see if he can't get it going without one. That is how I would do it.
11-23-2006, 11:02 AM
#3
Hi Black02SS
Happy Thanksgiven
Do you have a Accufab on your car?
If i adjust The throttle blade , meaning open it up a little , wont the car race then? and have a high idle
Am i right about The IAC values, With the stock Throttle body they are at Zero?
I think a 3/16 hole should do it , but i dont have my stock throttle body anymore,
Why didnt Accufab drill a hole in the blade?
Thanks for your help
Happy Thanksgiven
Do you have a Accufab on your car?
If i adjust The throttle blade , meaning open it up a little , wont the car race then? and have a high idle
Am i right about The IAC values, With the stock Throttle body they are at Zero?
I think a 3/16 hole should do it , but i dont have my stock throttle body anymore,
Why didnt Accufab drill a hole in the blade?
Thanks for your help
11-23-2006, 11:07 AM
#4
Happy gobble gobble to you too. 
No, I do not have a accufab on my car but have tuned enough cars to know how to fix the issue you are experiencing. You want the car to have anywhere from 50-80 counts at idle with the AC off. If the car races, then you will adjust other tables to compenstate for that as well. Not just one thing is going to fix your problem unfortunatley, it will be a combo of things.
No, I do not have a accufab on my car but have tuned enough cars to know how to fix the issue you are experiencing. You want the car to have anywhere from 50-80 counts at idle with the AC off. If the car races, then you will adjust other tables to compenstate for that as well. Not just one thing is going to fix your problem unfortunatley, it will be a combo of things.
11-23-2006, 04:59 PM
#5
Hi Black02ss
What if i drill the throttle blade with a 3/16" s bit? Will this help?
The car idles fine, its only when i try to come off the clutch with normal ,(little throttle) like how i was driving the car when it was stock.
This is when i come off the clutch at a stoplight in first , i have to peddle the throttle and give it gas to get her to roll out other wise the rpm will fall around 400-500 and i have to push down on the clutch to start over and reve her up to get her to start rolling or she will stall.
what do u think,
any susjestions?
I can give my tuner advice on monday
thank you for your help
What if i drill the throttle blade with a 3/16" s bit? Will this help?
The car idles fine, its only when i try to come off the clutch with normal ,(little throttle) like how i was driving the car when it was stock.
This is when i come off the clutch at a stoplight in first , i have to peddle the throttle and give it gas to get her to roll out other wise the rpm will fall around 400-500 and i have to push down on the clutch to start over and reve her up to get her to start rolling or she will stall.
what do u think,
any susjestions?
I can give my tuner advice on monday
thank you for your help
11-23-2006, 05:35 PM
#7
so , If my car does'nt have enough air , does it mean its running rich at idle?
what size drill hole should i start out with?
My car is using way more fuel then it did stock, i used to get great gass milage,
Now it sucks, is this normal,
and i think its because off the unusual idle
My tuner took out 5% more fuel the other day at idle, i took it for a test run, but it then even seemed worse with the car wanting to stall off a stoplight .
I dont know, but i cant stand it , i want it right, very frustrating
what size drill hole should i start out with?
My car is using way more fuel then it did stock, i used to get great gass milage,
Now it sucks, is this normal,
and i think its because off the unusual idle
My tuner took out 5% more fuel the other day at idle, i took it for a test run, but it then even seemed worse with the car wanting to stall off a stoplight .
I dont know, but i cant stand it , i want it right, very frustrating
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11-25-2006, 03:55 PM
#11
Accufab told me the reason for no hole in the Accufab LS1 throttle blade is because there is more clearence around the blade, compared to the stock T-body were it is tighter,
Because of this they are both equal at idle, but the accufab will flow around 120, 10%-15% more CFM at WOT.
Because of this they are both equal at idle, but the accufab will flow around 120, 10%-15% more CFM at WOT.
