i just put my 80 series on and my acceleration has seemed to get slower........is this possible or am i just nuts?

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Slayer of the following:
1996 Riced-out Honda Civic (all show and no go!!!!!!)
2000 saturn
198? Ford Crown Vic, (no i don't know why he bothered)
1990 Buick LeSabre 3.8
1986 Camaro 2.8
Newer Ford Explorer
Food that makes me sick: RICE
1991 Camaro RS 3.1 V6 5-speed
1991 Z28 Rims with Firestone Firehawks
dual snorkel intake w/ slashed boxes, 2 K&N's, 180* t-stat, 80 series Flowmaster (sounds AWESOME)
my motto: I CAN'T DRIVE 55

 

Yes & No.
NO, It's your imagination. And not a put down.
Yes, YOUR CURRENT ENGINE SET UP, may NOT have liked removing what back pressure was built into your exhaust system.
Back pressure=equals some torue.
CALL FLOWMASTER for their response.

AND, perhaps, your engine needs some more power.
How you get that is up to your budget.

When I put the Flowmaster 2 chamber 2 1/2"in to two 2" exhaust out, on my S-10 Blazer (1985 2.8 carb), it loved it. More top end and I compensated for the lower end I played with distributor (I could w/my version). I was able to reach speeds of 90-95 MPH with that truck.

Perhaps disconnect the computer and then try again?

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Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

It is possible .I know mufflers don't give the performance the manufactorers say they do .But when I changed to a dynamax from a flowmater .I noticed more power in my dynamax .It wasn't a big increase but I noticed it .I remember you telling me you had an aftermarket muffler on your car before you got the flowmaster,its possible that whatever kind of muffler it was it flowed a little better .However the car should not seem a that much slower from putting on your flowmaster .Talk to you later buddy , Wayne

 

high flow & low power dont mix. put a k&n filter on almost anything carburated with under 200hp & it'll take your 0-60's up about a second.

 

yeah funny you all say that cuz my top end did improve and my low end is what is suffering although it was a little better today i think i gotta break it in a little better i need some good low end torque!!!!!!!!!! damn i need that 3.4

 

Clear you ECM. You have changed the way the car breathing you need to blow all the old values stored in the ECM. If you get the K&N do it again. Just rember every time you change the way the car runs you need to blow those old values away and you will see better respones. Just pull the negtive bat cable for a minute and reconect.

 

Or if you don't want to have to retune your stereo, just yank the ECM fuse.. it should be right by the battery and attached to the inside of the fender.

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'86 Camaro SC, black /w silver racing stripes
2.8l MPFI/700r4 /w special 2nd gear delete option
In search of new v8 engine & transmission, now contemplating t5 swap to get me out of this mess.
Misc Mods: Cut air box, '83 Firebird spoiler.
Performance Parts: MSD coil, Accel 8mm wires, SplitFire plugs, Gabriel hijackers.
Audio Mods: Pioneer DEH-P3000, two 12" Optimus Pro Audio subs in hand-made enclosure each powered by a 260 watt Optimus amp. Working on shaving the box for weight.
My Homepage, with pics.

 

actualy, the flowmaster 80 series, while more free flowing then stock and a few others, is more restrictive then many of more quieter systems out there, ya i know it sounds wierd, but i just pulled of a muffler that had a staight shot through, no turns no baffles no nothing, u could see straight through, and it was ALOT quieter then the flow master, and im almost 100% certain that it flowed better then the flowmaster, think of flowmasters as "sound chambers" more then as high performance mufflers, thats why they are so cheap, cause when u spend 160 for an SLP muffler or something like that, your gonna get something quiet which flows really well. but chances are it did flow more, did u notice a top end gain?

just my $.02

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- David
88' GTA 350 MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT

 

ok boyz, this morning i romped on it REALLY hard.......my performance seems better now.....i guess i just had to clear it out a little.....it was nice and cool this morning 2 so that helped a little......and yeah i did see upper RPM improvement


now excuse me while i go remove my ECM fuse................