Janzter TB installed...now
08-25-2005, 10:40 AM
#1
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Janzter TB installed...now after high RPM runs the car dies when the RPMs come back down. It never did this with a stock TB.
The following modifications are done to the TB:
*Ported to 75mm and Polished Inside
*Inlet is shaped to reduce turbulence
*TB base is Powdercoated any color
*Front of Throttle Shaft is cut off for improved flow
*Throttle Shaft is Powdercoated Black
*Return Spring is polished
*Throttle blade screws are shortened
*Blade is polished
*Hole is Epoxied in and contoured for best flow
*Copper tubing is used for accuracy for the IAC & PCV Holes
*Throttle Stop is ground to fully open the blade (Bump Stop Mod)
*Rear of TB is surfaced for a clean fit/finish to the Manifold
also sometimes has a hard time idling with just some regular driving.
my IAC's were at ~80 last nite when I was HP Tuners scanning it.
what is the best way to cure this????
https://ls1tech.com/forums/showthrea...ntzer+throttle
http://redhardsupra.blogspot.com/200...le-tuning.html
The following modifications are done to the TB:
*Ported to 75mm and Polished Inside
*Inlet is shaped to reduce turbulence
*TB base is Powdercoated any color
*Front of Throttle Shaft is cut off for improved flow
*Throttle Shaft is Powdercoated Black
*Return Spring is polished
*Throttle blade screws are shortened
*Blade is polished
*Hole is Epoxied in and contoured for best flow
*Copper tubing is used for accuracy for the IAC & PCV Holes
*Throttle Stop is ground to fully open the blade (Bump Stop Mod)
*Rear of TB is surfaced for a clean fit/finish to the Manifold
also sometimes has a hard time idling with just some regular driving.
my IAC's were at ~80 last nite when I was HP Tuners scanning it.
what is the best way to cure this????
https://ls1tech.com/forums/showthrea...ntzer+throttle
http://redhardsupra.blogspot.com/200...le-tuning.html
08-25-2005, 11:17 AM
#2
you already found my idle tuning writeup, so let me reiterate: do your RAF few times if necessary, both in driving and park conditions, and just adjust them till they settle.
another thing to check for a ported TB is to do your MAF calibration. I scanned my friend's car which was fully tuned before after he polished his, and he was running like 5-8% lean all over the place. quick MAF calibration, and his trims were back to perfect. just make sure your VE is really tuned before you go for MAF adjustments.
another thing to check for a ported TB is to do your MAF calibration. I scanned my friend's car which was fully tuned before after he polished his, and he was running like 5-8% lean all over the place. quick MAF calibration, and his trims were back to perfect. just make sure your VE is really tuned before you go for MAF adjustments.
08-25-2005, 11:52 AM
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hey Red...can you answer some questions on some confusion I am having on your write up plz..and maybe something that might help others.
1.
THROTTLE BODY
If you have a bigger throttle body (FAST 90, or Nick Williams) you want to multiply your Effective Airflow Area by 48%. (put in 1.48, select the whole row, hit 'multiply')
where exactly is this in HP Tuners? Effective Airflow Area ??
2.
Take a Stock VE table (remember to do it on the Primary VE for 01-02 cars and Secondary VE for 98-01), and have the first column (400rpm) go 25-60, second column (800rpm) from 25 to 70, and third column (1200rpm) to 35-70.
I have a 98..but in the picture it shows 15 to 105..my software only shows 20 - 100...Im in the Secondary VE Percent vs. RPM vs MAP..am I in the wrong area?
1.
THROTTLE BODY
If you have a bigger throttle body (FAST 90, or Nick Williams) you want to multiply your Effective Airflow Area by 48%. (put in 1.48, select the whole row, hit 'multiply')
where exactly is this in HP Tuners? Effective Airflow Area ??
2.
Take a Stock VE table (remember to do it on the Primary VE for 01-02 cars and Secondary VE for 98-01), and have the first column (400rpm) go 25-60, second column (800rpm) from 25 to 70, and third column (1200rpm) to 35-70.
I have a 98..but in the picture it shows 15 to 105..my software only shows 20 - 100...Im in the Secondary VE Percent vs. RPM vs MAP..am I in the wrong area?
