Super AFC Area is for discussing the Apexi Super AFC

gains with n/a car

Old 06-16-08, 11:06 AM
  #1  
is tempted
Thread Starter
iTrader: (10)
 
Templeton's Avatar
 
Join Date: May 2006
Location: New Hampshire
Posts: 851
Liked 6 Times in 6 Posts
gains with n/a car

what sort of power gain if any can i expect out of a s4 n/a, and what amount of increase in MPG have people gotten, just wondering if its worth my time & money
Templeton is offline  
Old 06-16-08, 04:07 PM
  #2  
is tempted
Thread Starter
iTrader: (10)
 
Templeton's Avatar
 
Join Date: May 2006
Location: New Hampshire
Posts: 851
Liked 6 Times in 6 Posts
cars been a work in progress for a few months but i was getting 22mpg with spirited driving.
mods which i assume are relevant:
cone filter
cold air box
full 2 1/2 in. exhaust
6 port sleeve inserts
6 ports wired open
double throttle plates removed
ported s5 UIM
VDI wired open
msd 6a
Templeton is offline  
Old 06-17-08, 04:06 PM
  #3  
mazda13B88
10 Year Member
 
mazda13B88's Avatar
 
Join Date: Dec 2005
Location: florida
Posts: 502
Likes: 0
Liked 0 Times in 0 Posts
im curious as well....
mazda13B88 is offline  
Old 06-23-08, 10:40 AM
  #4  
Full Member
iTrader: (1)
 
cozmosland's Avatar
 
Join Date: Jul 2007
Location: delta
Posts: 212
Likes: 0
Liked 0 Times in 0 Posts
someone enlighten us
cozmosland is offline  
Old 06-23-08, 01:23 PM
  #5  
Senior Member
5 Year Member
 
nvrdone's Avatar
 
Join Date: Jul 2007
Location: North Dakota
Posts: 308
Likes: 0
Liked 0 Times in 0 Posts
depends on your tuning abilities. My buddy swore 10-15whp on his but never dyno'd it.
nvrdone is offline  
Old 06-28-08, 12:40 PM
  #6  
Rotary Freak
5 Year Member
 
Join Date: Dec 2006
Location: New Hampshire
Posts: 1,791
Likes: 0
Liked 0 Times in 0 Posts
160-170rwhp without porting. This is with the help of a S5 intake manifold, open exhaust, cai and a few other little upgrades. This is also highly dependant on your compression.
RotaMan99 is offline  
Old 07-01-08, 09:04 PM
  #7  
Senior Member
 
Join Date: Mar 2007
Location: Boston MA
Posts: 438
Likes: 0
Liked 0 Times in 0 Posts
I'll dyno my car upon completion I'm looking for somewhere around 150-165whp. I'll dyno within the next 3 months.
Rotary_Powerd is offline  
Old 07-02-08, 09:50 PM
  #8  
mazda13B88
10 Year Member
 
mazda13B88's Avatar
 
Join Date: Dec 2005
Location: florida
Posts: 502
Likes: 0
Liked 0 Times in 0 Posts
i have street port, racingbeat road race exhaust, no emmisions, on an s4. on aug 3 im geting it dynoed and ill post them numbers then im getting my super afc put on then ill dyno it again and post them numbers. maybe to see a difference
mazda13B88 is offline  
Old 07-03-08, 05:14 PM
  #9  
Rotary Freak
5 Year Member
 
Join Date: Dec 2006
Location: New Hampshire
Posts: 1,791
Likes: 0
Liked 0 Times in 0 Posts
I'll dyno my car upon completion I'm looking for somewhere around 150-165whp. I'll dyno within the next 3 months.
Your engine screams, "OPEN MY TAIL PIPE!"
RotaMan99 is offline  
Old 07-03-08, 09:30 PM
  #10  
Senior Member
 
Join Date: Mar 2007
Location: Boston MA
Posts: 438
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by RotaMan99 View Post
Your engine screams, "OPEN MY TAIL PIPE!"
I Know I know! Lol but everything takes money. But atleast I got the header I'll get a high flow cat next. and a cat back last.
Rotary_Powerd is offline  
Old 09-26-08, 10:11 PM
  #11  
Listen to King Diamond.
iTrader: (4)
 
need RX7's Avatar
 
Join Date: Dec 2006
Location: Sterling Heights, MI
Posts: 2,775
Liked 0 Times in 0 Posts
Any one have any info on this?
need RX7 is offline  
Old 10-21-08, 07:28 PM
  #12  
The Brap is Back
10 Year Member
iTrader: (3)
 
FirstRotaryExp's Avatar
 
Join Date: Sep 2005
Location: Dandridge, Tennessee
Posts: 2,777
Likes: 0
Liked 0 Times in 0 Posts
Ive had a SAFC-II on my 88 NA for a couple years now. Only really started messing with it since last year. My list of mods include: Stock ported mazda reman (55k miles), Racing Beat Header/presilencer, 2.25" SS exhaust piping into a cheap ( O ) shaped muffler *thats as it looks from the back of the car*, Ford Taurus E-Fan, cheapish cone filter, no emissions, and the SAFC-II. These would be my only 'power' gains or modifiers and im seeing 23mpg with a very heavy foot, driving the car back and forth to work 10 miles interstate (avg speed 80-90mph) an 15miles city driving (avg speed 50-60). 1st thru 2nd gear is always redlined, and only on the highway does 3rd and sometimes 4th get redlined. Ive also done numerous runs up and down US129 (aka 'the dragon') with the car left in 2nd gear all the way up and down.

That said my maps are all geared towards removing fuel from the stock map, with 17% fuel removed at idle/1000rpm's with a general curve ending with 3% fuel removed at 8000rpm's. The SAFC was well worth buying, as I was only seeing around 18ish mpg one motor ago before some backyard tuning.

Its good for what it is and how much it can be had for, which can literally pay for itself over a years time depending how often you drive your car.

Hope any of this helped.
FirstRotaryExp is offline  
Old 10-23-08, 07:52 AM
  #13  
is tempted
Thread Starter
iTrader: (10)
 
Templeton's Avatar
 
Join Date: May 2006
Location: New Hampshire
Posts: 851
Liked 6 Times in 6 Posts
awesome info thanks
Templeton is offline  
Old 10-23-08, 12:19 PM
  #14  
Full Member
iTrader: (1)
 
cozmosland's Avatar
 
Join Date: Jul 2007
Location: delta
Posts: 212
Likes: 0
Liked 0 Times in 0 Posts
are you using a wideband with your tuning? if so which one?
cozmosland is offline  
Old 11-24-08, 03:09 AM
  #15  
Full Member
iTrader: (1)
 
cozmosland's Avatar
 
Join Date: Jul 2007
Location: delta
Posts: 212
Likes: 0
Liked 0 Times in 0 Posts
riving this, hoping for answer
cozmosland is offline  
Old 11-25-08, 01:38 PM
  #16  
Wanker Club
10 Year Member
iTrader: (3)
 
Join Date: Sep 2002
Location: Dallas
Posts: 293
Likes: 0
Liked 0 Times in 0 Posts
I have S5 n/a, mild port, full RB exhaust, CAI, T2 fuel pump. Running a PLX wideband.

The car was running 11.5-12.5 afr under wot, backfire like hell between shifts!

Hi throttle set to 95%, Lo throttle 35% (just out of closed loop operation)

Leaned it out around 8-14% at 100% throttle, about 14afr (I'm conservative)

Leaned out 12-20% at Lo throttle settings, around 15-16afr. Leaned it till it started to buck, then put back in 2-3% fuel.

Have not driven it enough to get mpg estimates. However, was getting around 25mpg cruise set at 75 on the highway. this is a gtus so slightly higher rpm's.

I understand the "educated backyard mechanic" n/a tuning method is to lean it out till the car starts to loose power or bucks, then add a bit back in

cheers

Last edited by Acroy; 11-25-08 at 01:49 PM.
Acroy is offline  
Old 11-26-08, 03:28 AM
  #17  
Sin City 7
 
Rotarded-at-last's Avatar
 
Join Date: Nov 2008
Location: Sin City
Posts: 17
Likes: 0
Liked 0 Times in 0 Posts
I cant wait for my safc!!!!
Rotarded-at-last is offline  
Old 11-26-08, 10:15 AM
  #18  
Full Member
iTrader: (1)
 
cozmosland's Avatar
 
Join Date: Jul 2007
Location: delta
Posts: 212
Likes: 0
Liked 0 Times in 0 Posts
which safc were you using? i have a neo...

and are you data logging?

Last edited by cozmosland; 11-26-08 at 10:21 AM.
cozmosland is offline  
Old 12-27-08, 10:59 PM
  #19  
Full Member
5 Year Member
 
Join Date: Nov 2006
Location: san antonio,tx
Posts: 50
Likes: 0
Liked 0 Times in 0 Posts
I'm thinking about using the SAFC II as well. My buddy has one for sale, but don't know if I should buy it.
segXD2 is offline  
Old 12-28-08, 07:57 PM
  #20  
Senior Member
iTrader: (1)
 
Join Date: Mar 2006
Location: Knoxville, TN
Posts: 650
Likes: 0
Liked 0 Times in 0 Posts
I know FirstRotaryExp and he has not wideband tuned his car..

segXD2, just buy it and it if you don't like or want it resale it. You shouldn't have a problem reselling it. Anyway I have a safc-ii and I don't think I have really seen much difference and fuel mileage. But I'm scared to take a whole bunch out and I have never really tuned it either..
yeti is offline  
Old 03-15-09, 03:03 AM
  #21  
Full Member
iTrader: (1)
 
cozmosland's Avatar
 
Join Date: Jul 2007
Location: delta
Posts: 212
Likes: 0
Liked 0 Times in 0 Posts
anyone have any updated results
cozmosland is offline  
Old 04-19-09, 10:05 PM
  #22  
Black Beast
iTrader: (1)
 
millertime6009's Avatar
 
Join Date: Dec 2008
Location: Dayton, Ohio
Posts: 215
Likes: 0
Liked 0 Times in 0 Posts
I had mine tuned on a dyno. I have an 88 GXL. added in 9% 1k-3k, 13% 4k, 8%5k 6k, 6% 6500rpm and 8% 7k. made 13 whp over stock. I was VERY surprised he added fuel. Im thinking it may be because of my exhaust leak?
millertime6009 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
immanuel__7
Canadian Forum
5
09-02-15 08:26 AM
Professorpeanutrx7
New Member RX-7 Technical
5
08-15-15 01:38 PM
meat_whistle
Introduce yourself
0
08-12-15 08:41 PM


Thread Tools
Search this Thread
Quick Reply: gains with n/a car


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: