I searched the archives but couldn't find anyone asking this... I was pretty sure all a chip does for a computer controlled Q-jet engine is advance the timing a bit. Is that true?


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

A guy that I was talking to at Autozone said he had put a stage 2 chip in his 83 CC firebird and thought it was a defective chip because it did nothing he sent it back to jet and they told him it was fine and he needed to advance his timing to take effect. whell long story short he got his money back.

 

For the amount of money those overrated shelf chips are going for, you can get better results from investing that money in other parts of the car. The Hypertech chip for my TBI car didn't even do that much, and the ECM on a CC carb vehicle has even less control over performance. You won't gain anything noticeable by putting a "performance" chip in a CC carb car.
Put one in if you can get it for free, that's how I see it.

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DR Stevens
1984 Trans Am 305HO L69
sucks gas, hauls ***
1991 Firebird 305 LO3
for days when I need a/c

 

Mine came with one. Didn't know I had it till I had my codes scanned. I really don't think it does crap.

 

My car had the hypertech chip in it when I got it. If it had made any real difference, it must've been hella slow beforehand. I really doubt it did much...

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1987 Camaro Sport Coupe LG4
700R4 with 2.73 open rear
Hypertech chip, 180* stat
L69 Dual snorkel air cleaner with K&N air filter
CK rods with B hanger
Hooker catback
Pioneer DEH-P4000, Pioneer speakers front/back

 

I think the thought of having it is worth 5HP,just kiddin.I put one in my 86 lg4 and noticed no differance. I also noticed my trans shifts harder without it.is ths possible?

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~mike~86 IROC-Z

 

Chips don't do anything. What you need is the discontinued Edelbrock Micro-Plus timing computer, it is worth 15-20hp on a stock LG4. The problem is where do you find one?

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Paul Huryk, billionare in training.
Monkey Guy Racing
Almost part of the moderately infamous NJ in-your-face all goomba crew

Do it right the first time.

Paul's home page

1985 IROC LG4 POS Best: 15.20s at 92.1mph
1984 Camaro 350 LG4 Best: 12.21s at 121.7mph

The smart person pays for something today so that more is received tomorrow.
The ignorant person gets something today and hopes to have enough money to pay for it tomorrow.

 

I've got a Micro Plus unit in like new condition that I would consider selling. Anyone interested? I'd even through in a used stock electronic distributor (no cap, rotor, or coil) in good condition if the price was right.

 

I guess for the archive record... I got a Hypertec Stage II chip from a friend. All it did was throw a code after a few minutes or it reached 100F (whichever came first). I figured out it was looking for a knock sensor... which my 84LG4 didn't have. I took it out and soon after replaced the engine which made it a lot faster!

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

-=ICON Motorsports=-

 

Great, thanks, guys. So instead of a chip, the timing should just be advanced a bit on an LG4? The LG4's have mechanical fans, right? So a chip wouldn't even turn the fan on earlier?


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

My 86 IROC LG4 has an electric fan. The chip is now 5 years old. It is a hypertech thermomaster that to use properly I had to put in a 160* thermostat and hypertech's fan switch to turn the fan on earlier. I didn't notice a difference but that was the only mod on the car 5 years ago. I hope that answered at least the electric fan question.

Mark

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1986 IROC LG4 "Bone Stock" (for now)

 

Badss, I'm interested, let me know what u want for it and where u are located....

 

Even with electric fans, the chip doesn't turn it on for CC carb'd engines. That's strictly the function of the thermo fan switch.

One of these days, I'm going to have to do back-to-back runs with my "performance" chip and the stock chip. I do know I passed emissions with the "performance" chip, and can't complain about performance or mileage with it.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam and intake, World 305 heads, Hooker headers & y-pipe, 3" Catco cat).
57 Bel Air, my 1st car. 0.030 over 396, 9.7 CR forged TRWs, Weiand Action+, Edelbrock 1901 Q-Jet, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlock header mufflers, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere w/open diff & slipping tranny.

 

I called Hyoertech about this a while ago. I asked the guy if it was worth it to put a chip in the LG4. He told me that the comps on our cars do so little that it wasn't even worth it. SO...if a salesman from Hypertech is telling me NOT to buy his product I don't think that its worth the money.

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Jay

black 85 Z28, t-tops, 4bbl carb, flowmaster 80 series muffler w/ custom tips (hollowed out cat), edelbrock chrome air cleaner, Infinity 4" 2 way front speakers and Infinity 3 way 6x9s, Alpine CDA-7863 head unit. many more mods planned (holley carb 4160 and edelbrock performer RPM intake coming very soon)
Jay's webpage

 

BadSS: I'm very interested. Email me so we can talk.

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1985 Z28, Jasper Class 1 350, Edelbrock Performer intake, Dual snorkel air cleaner, K&N, Edelbrock headers, Catco 3" cat, Hooker 3" cat-back, Richmond 3.73's, Transgo shift kit, JET Stage 2 chip, Hypertech coil, Lakewood LCA's, Powertrax locker, SSM subframes, Centerline Auto Drag's