real horespower gains from stuff

[Mantis88LX]

so can any body give me horspower numbers for each mod, even a guess is good, i just want to hear about what kinda mods give u the most power
ok lets start the list,

Flipped lid (carbed accords)
Cold air intake (efi accord)
Short under hood intake (efi accord)
Accel coil
K&N air filter
8.mm spark plug wires
Exaust system

thats all i can think of right now, can someone tell me about how much horsepower each of those mods would give?

thanx

[A20A1]

Flipped lid (carbed accords) +2 / -2
Cold air intake (efi accord) +3 / +7
Short under hood intake (efi accord) +3 / -2
Accel coil +1 / +3 with proper gaps
K&N air filter +3
8.mm spark plug wires +1
Exaust system +5 / +10 / -15

[A20A1]

the -15 is if you mess up and go with too small or too large a pipe diameter and also if you get it crimp bent.

[Mantis88LX]

yay i dont have just 98hp anymore, i have about 105

[1989se-i]

wo, how would you get negative Ponies from the intake and flipped lid? :(

[Mantis88LX]

hot air being sucked in, just rig up something to feed colder air into the intake stream, like a ram air setup, i got a hose ran from my air box down into the fog light area, it sorta pushs colder air up into the intake stream help while driving but whne idling doesnt really help

[3rd GEN]

ya I think I'm prolly runnin between 105 and 110..

However.. i wouldn't recomend cold air intakes.. esp if you live in a place when it either rains or snows alot..

cuz the CAI brings air in from the bottom, like near the road surface.. and if you get moisture suckin in aswell..
well, i will leave it up to you to figure out what you think may happen..

but ya, thats true..if you run too large of an exhaust.. you beggin to loose torque and power...
I wouln't go any larger then 2.25in exhaust..

I noticed the difference when I got my 2.25in cat-back put in..

compaired to the stock 1.75in.. I lost some top end power..
it's harder to get to 160km's now, then it was before..
but as for low end.. it's all there..infact.. i gained some low end power..

[Jims 86LXI HB]

Originally posted by A20A1
the -15 is if you mess up and go with too small or too large a pipe diameter and also if you get it crimp bent.

I dunno if I'd say that about crimped bends. Grassroots motor sports mag., compaired mufflers where they picked a muffler and had a shop create a cat-back for it. The car they used was very simular to our's in engine size and tuning. A 92 (I believe it was a 92) VW jetta. The lowest power gain was the pacesetter with it's nice smooth mandrel bends, gained like 2 horsepower. The 3rd most powerfull was the Dynomax super turbo setup,....with crimped bends, made like 7hp.

I fully agree about the pipe diameter.

[A20A1]

hmm maybe the crimps act as anti-reversion dams like the ones they are starting to add into the primaries of new performance headers.

[1988starter]

Originally posted by Jims 86LXI HB


I dunno if I'd say that about crimped bends. Grassroots motor sports mag., compaired mufflers where they picked a muffler and had a shop create a cat-back for it. The car they used was very simular to our's in engine size and tuning. A 92 (I believe it was a 92) VW jetta. The lowest power gain was the pacesetter with it's nice smooth mandrel bends, gained like 2 horsepower. The 3rd most powerfull was the Dynomax super turbo setup,....with crimped bends, made like 7hp.

I fully agree about the pipe diameter.


I remember that it is just another reason why a 40 buck dynomax muffler kicks some serious ass.

[toastyghost]

or a $31.95 one :P

[1988starter]

Originally posted by toastyghost
or a $31.95 one :P

what is the handling charge for that I know shiping is free but not handling. They wanted 7.50 for an ss coil