s4/s5 n/a nearly 165 hp light mods!
01-23-07, 10:41 PM
#1
I "lost" my emissions....
Thread Starter
s4/s5 n/a nearly 165 hp light mods!
s4 ecu on a safc with an s5 engine
open intake open exhaust
wired vdi and no 5/6 port sleeves
no emmissions
and thats it,
110k on engine
it didnt even try to over heat, it sat at 180 the whole time and even dropped to 165 between the 15 runs (1 minute break) freaking outstanding huh?
(taken right before the repaint)
01-25-07, 03:41 PM
#5
So if this guy is getting that kind of hp to the wheels with nearly stock what should I be getting if I actually got my car dyno tuned on an safc ?
I have a streetported s4 na (rotaryresurrection), with full exhaust , rb headers and borla catback, straight pipe no cat, kn intake w/bonez maf adapter, corksport intake kit w/heatwrap on it, completely removed 5/6 ports and sleeves, and ported throttlebody.
I figure i have abotu 160-170whp now without being tuned, but after being tuned im guessing i should have 175+whp .
Im guessing my power would dropoff around 7500 rpm ? Thats the highest I'll rev it up to , I havent went higher, I believe it will go to 8000 but I see no point in going that high.
Although I know on s5 you can rev to 8600 but with the s4 it probably wont.
I have a streetported s4 na (rotaryresurrection), with full exhaust , rb headers and borla catback, straight pipe no cat, kn intake w/bonez maf adapter, corksport intake kit w/heatwrap on it, completely removed 5/6 ports and sleeves, and ported throttlebody.
I figure i have abotu 160-170whp now without being tuned, but after being tuned im guessing i should have 175+whp .
Im guessing my power would dropoff around 7500 rpm ? Thats the highest I'll rev it up to , I havent went higher, I believe it will go to 8000 but I see no point in going that high.
Although I know on s5 you can rev to 8600 but with the s4 it probably wont.
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02-01-07, 01:30 AM
#10
Originally Posted by arghx
No. I have the Pineapple Racing inserts operated by an electric air pump
My car definitely makes good power after 3500-4000rpm , but before that it definitely is losing power from having the 5/6 ports taken out.
Do you think i should put the 5/6 ports back in ?
Last edited by wthdidusay82; 02-01-07 at 01:35 AM.
02-01-07, 11:05 AM
#11
The short answer is that the more your car is tuned for top end (porting etc) the more likely you'll notice a difference in low end from properly working auxilary ports. I like the 6 port system from a driveability standpoint. It's not going to make a whole lot of difference in performance driving--who stays under 4000 rpm in a nonturbo anyway?
I'll say this: My car is annoying to drive with the auxilary ports wired open, which they were for a while. This is close to having the sleeves removed. I had to downshift all the time for any kind of acceleration on the highway or going up hills around town. I noticed a big difference in low end--but you see, my car is ported and has a header. I've talked to other people on stock ports who say that it wasn't a big deal.
I'll say this: My car is annoying to drive with the auxilary ports wired open, which they were for a while. This is close to having the sleeves removed. I had to downshift all the time for any kind of acceleration on the highway or going up hills around town. I noticed a big difference in low end--but you see, my car is ported and has a header. I've talked to other people on stock ports who say that it wasn't a big deal.
02-01-07, 05:00 PM
#13
Originally Posted by arghx
The short answer is that the more your car is tuned for top end (porting etc) the more likely you'll notice a difference in low end from properly working auxilary ports. I like the 6 port system from a driveability standpoint. It's not going to make a whole lot of difference in performance driving--who stays under 4000 rpm in a nonturbo anyway?
I'll say this: My car is annoying to drive with the auxilary ports wired open, which they were for a while. This is close to having the sleeves removed. I had to downshift all the time for any kind of acceleration on the highway or going up hills around town. I noticed a big difference in low end--but you see, my car is ported and has a header. I've talked to other people on stock ports who say that it wasn't a big deal.
I'll say this: My car is annoying to drive with the auxilary ports wired open, which they were for a while. This is close to having the sleeves removed. I had to downshift all the time for any kind of acceleration on the highway or going up hills around town. I noticed a big difference in low end--but you see, my car is ported and has a header. I've talked to other people on stock ports who say that it wasn't a big deal.
From what I read I wont be making much more power on the topend (maybe 1 or 2 hp this is a guess with no proof), but I'm losing well over 10 hp below 4000 rpm this is easily proovable.
So if I'm really only making another 2 hp on topend and thats it, I dont think its really worth losing all that power on the low end.
Ive had others tell me that you will gain another 5-10 hp from taking them out, but again there is no proof behind this.
Although my car does pull very nice from 4000 and all the way into the redline to 7500rpm , Ive never driven it with working 5/6 ports so I have nothing to compare it to.
02-14-07, 11:21 PM
#15
Wish he had a running rx7
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I feel like i have to say this also do you know what i might be making I still have the stock exhaust manifold but i'm going to get a pipe made that goes down into a silencer and goes back to a dyno max exhaust I have the whole dynomax system from summitracing.com. I have clean injectors i cleaned out all the carbon in the intake when i put it back in and that is about it oh and wait a K&N filter for the stock housing.
02-14-07, 11:44 PM
#16
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how is dreyko running his s5 motor with the s4 ecu? my s5 motor is rigged up to an s5 ecu to run right. oh btw, since we are all debating horsepower numbers here, my fc has an s5 motor, safc II, header, no cats, no aircon/powersteering/fan and k&n cone airfilter. what you ya'll think i'm putting down to the ground? i've never dyno'd my car before (obviously)
02-18-07, 08:34 PM
#17
I really Schruted it
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Originally Posted by wtfdidusay82
Although I know on s5 you can rev to 8600 but with the s4 it probably wont.
This is a classic reminder that sometimes people can give advice on this forum that can be very helpful and sometimes very detrimental . We need to take everything said here with a grain of salt. Be very careful and don't believe everything you read.
Brian
02-19-07, 05:27 PM
#18
Banned. I got OWNED!!!
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Originally Posted by RX7Tuner.
This is a classic reminder that sometimes people can give advice on this forum that can be very helpful and sometimes very detrimental . We need to take everything said here with a grain of salt. Be very careful and don't believe everything you read.
Brian
T H A N K Y O U ! ! ! i can't stress this enough. motors have blown because of people listening to some **** on this forum! keeps us in business tho i guess.
03-21-07, 11:30 PM
#20
Yall 3 blow up your motors tryin to rev past 8000 already ? I know enough not to rev past 8000rpm , my point stated was the motor CAN do it. Sure you shouldnt be doing it but the point is it can do it stock if it wanted to , or you can bring up the reliability by doing the supporting mods you said. You also may want to race clearance your rotors as well, along with the port to support the power at the higher rpms effiecently and properly tuned on safc with the right fuel system NONE of you mentioned.
I thought you all knew so much ?
I thought you all knew so much ?
