TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

What is the best AFPR?

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Old Mar 8, 2002 | 11:53 AM
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ShiftyCapone's Avatar
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
What is the best AFPR?

I am getting headers here shortly with my tax return and I want to compliment it with an ADFR. I want the best one that is the easiets to tune and install. What are you guys susing, and how easy is it to tune.
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Old Mar 8, 2002 | 12:20 PM
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I've had the JET and the GM vAFPR. I think the vAFPR from GM is the best. It is more adjustable than the JET. Not only can you tune the static or base FP but with the vacuum one it give you that much more adjustability.

The JET one you had to adjust for best WOT response. This left my car running VERY rich at idle and PT speeds. The GM piece gives a better across the RPM range performance in my book.

cd
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Old Mar 8, 2002 | 01:16 PM
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
NotDadsW41,

Could you please give me a part number for that one. Did you buy it from a dealer? I was always wondering if the GM vacuum adjustable one was better. I take it that the install and adjustability is prety easy to do? I looked at the turbo city one and the JET one but I was afraid of running to rich at idle and cruise speeds. Thanks
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Old Mar 8, 2002 | 08:49 PM
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From: Wichita, KS
see this thread

https://www.thirdgen.org/techbb2/sho...ghlight=vacuum
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Old Mar 8, 2002 | 11:23 PM
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From: Ewing, NJ
good call notdadsw41, a vacuum based regultor is the most accurate way of assuring proper fuel delivery without a custom chip.


later
tim
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