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 Are these any good?

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Yardley
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PostSubject: Are these any good?   Thu Jun 08, 2017 9:11 pm

http://www.ebay.com/itm/1996-1999-Buick-Riviera-High-Performance-Tuner-Chip-Power-Tuning-Programmer-/302325089318?fits=Year%3A1996%7CMake%3ABuick%7CModel%3ARiviera&hash=item4663fac426:g:MyYAAOSwKytZGlP0&vxp=mtr

What happens if I need to unplug it to pull a code? Will it revert back to OEM tune instantly for the minute I'm pulling the code?

Is it safe?
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LARRY70GS
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PostSubject: Re: Are these any good?   Thu Jun 08, 2017 9:34 pm

Sounds like B.S. to me. What do have, money burning a hole in your pocket? LOL.

_________________
98 Riviera SC3800 All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
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Yardley
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PostSubject: Re: Are these any good?   Thu Jun 08, 2017 10:03 pm

Tanqueray and some time to burn. LOL
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AA
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PostSubject: Re: Are these any good?   Thu Jun 08, 2017 11:41 pm

From their description: "It then safely optimizes the ignition spark advance, air to fuel ratios and transmission shifting for the ultimate horsepower and torque gains."

From their FAQ: "The module never overwrites factory data and always preserves your warranty coverage. If for some reason you remove the tuner, no one will ever know it was installed."

Only one of these statements can be true, and it's not the first one, so...

Stay away... Very, very far away.

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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albertj
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PostSubject: Re: Are these any good?   Fri Jun 09, 2017 12:38 pm

AA wrote:
From their description: "It then safely optimizes the ignition spark advance, air to fuel ratios and transmission shifting for the ultimate horsepower and torque gains."

From their FAQ: "The module never overwrites factory data and always preserves your warranty coverage. If for some reason you remove the tuner, no one will ever know it was installed."

Only one of these statements can be true, and it's not the first one, so...

Stay away... Very, very far away.

IIRC it biases the signal from the AMM to trick the ECM or some such. My take: don't bother. If you make sure there are no vac leaks and the boost modulator on the SC is working, the loud pedal will give you a whole lot of 2 tons of running fun.
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AA
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PostSubject: Re: Are these any good?   Fri Jun 09, 2017 1:59 pm

There is a product called an AFC (air/fuel controller) that adjusts the MAFF feed from the MAF sensor to trick the PCM into adding more or less fuel. I used one years ago, before tuning the PCM directly, and it worked well. Mini AFC is $150 from ZZP if anyone is interested.

There is also a way to advance spark timing by plugging into the IAT sensor wires using a $20 "Race Pellet", a resistor module also avail from ZZP... BUT you need to use a tuned PCM that can take advantage of the module, as the OEM does not command more advanced timing with cooler air in our cars, but it does retard timing for hotter intake air).

I don't see how the PCM could be "tricked" in the same way through the OBDII port, otherwise the 3800 vendors would likely sell such a product. Maybe on newer OBD with CAN-bus it's possible?

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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