definitive upgrade guide to increasing SC4's HP
06-21-04, 09:07 AM
#1
definitive upgrade guide to increasing SC4's HP
I think there has been a lot of questions on how to make their car faster. Anyone with definitive (proven HP gains not from a butt dyno) gains please post here. Include car year and miles. SC4's or SC3/4 shared mods only please.
1992 SC400 100k miles base dyno 178rwhp 202rwtq
255walbro fuel pump,
custom exhaust 2.5" x-pipe - 2.5" piping - generic muffler
(I think just stock fuel pump would have resulted in same result
Airbox openening cut bigger.
202rwhp 217rwtq
above mods + S-AFC tuned 210rwhp 230rwtq
If anyone has done anything else and has PROVEN HP gains please post here.
thank you.
1992 SC400 100k miles base dyno 178rwhp 202rwtq
255walbro fuel pump,
custom exhaust 2.5" x-pipe - 2.5" piping - generic muffler
(I think just stock fuel pump would have resulted in same result
Airbox openening cut bigger.
202rwhp 217rwtq
above mods + S-AFC tuned 210rwhp 230rwtq
If anyone has done anything else and has PROVEN HP gains please post here.
thank you.
06-21-04, 09:28 AM
#2
Pole Position
i know its true!... but its hard to believe that the exhaust generate 20 extra HP...that is sick....how is your MPG now?...since all of the changes..
CEO
CEO
Last edited by THE_CEO; 06-21-04 at 09:29 AM.
06-21-04, 09:33 AM
#3
Originally posted by THE_CEO
i know its true!... but its hard to believe that the exhaust generate 20 extra HP...that is sick....how is your MPG now?...since all of the changes..
CEO
i know its true!... but its hard to believe that the exhaust generate 20 extra HP...that is sick....how is your MPG now?...since all of the changes..
CEO
local/highway i get around 19mpg
06-21-04, 10:09 AM
#5
Pole Position
Originally posted by VSsc400
on my 8000miles in 8 days trip i averaged 22.5mpg
local/highway i get around 19mpg
on my 8000miles in 8 days trip i averaged 22.5mpg
local/highway i get around 19mpg
man if that is true everyone should swap out their exhaust ASAP....since the stocks hold us back that much!!!
CEO
06-21-04, 11:42 PM
#6
Lead Lap
as soon as i finish a few house projects, i am going to design a catback exhaust with some Apex N-1 Universal mufflers, do the BFI, get an SAFC2, and who knows,...might do the pulleys,.... virtually the same mods as on my last car, which were very beneficial.
Good info VSsc400
Good info VSsc400
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06-22-04, 05:59 PM
#10
Pole Position
Originally posted by /Aerostar\
Noo, wont free up any HP on the SC4. On this SC3, yes, but not the V8 (hydraulic fan system)
Noo, wont free up any HP on the SC4. On this SC3, yes, but not the V8 (hydraulic fan system)
CEO
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