Just Picked And Opened Up The Gxl Motor
Super Moderator
Joined: Sep 2002
Posts: 2,763
From: Savannah, Ga
Originally Posted by pengaru' date='Aug 8 2003, 11:58 PM
first and last time? Have you had to replace the ball joints on the front A arms yet? 
what is the reason for saying S5's don't like BP?
what is the reason for saying S5's don't like BP?
Senior Member
Joined: Apr 2002
Posts: 2,930
From: IL
Originally Posted by mazdaspeed7' date='Aug 9 2003, 02:39 PM
[quote name='pengaru' date='Aug 8 2003, 11:58 PM'] first and last time? Have you had to replace the ball joints on the front A arms yet?
what is the reason for saying S5's don't like BP?
what is the reason for saying S5's don't like BP?
hrm, thats just one specific case, i'm not sure how conclusive that is as far as S5's hating BP's in general.
Are you wiring them open or just opening them at high rpm? safc or anything?
Super Moderator
Joined: Sep 2002
Posts: 2,763
From: Savannah, Ga
Originally Posted by pengaru' date='Aug 9 2003, 10:50 AM
[quote name='mazdaspeed7' date='Aug 9 2003, 02:39 PM'] [quote name='pengaru' date='Aug 8 2003, 11:58 PM'] first and last time? Have you had to replace the ball joints on the front A arms yet?
what is the reason for saying S5's don't like BP?
what is the reason for saying S5's don't like BP?
hrm, thats just one specific case, i'm not sure how conclusive that is as far as S5's hating BP's in general.
Are you wiring them open or just opening them at high rpm? safc or anything? [/quote]
The problem is my afm gets maxed out before it gets into the powerband. S5's seem to have a problem with that. Ive seen small SP motors with bolt ons hitting 95% of the max reading on the afm. A s-afc or wont do any good because the computer isnt mapped for the airflow that a BP uses.
I have my ports wired closed now, running on 4 ports only...
Senior Member
Joined: Apr 2002
Posts: 2,930
From: IL
Originally Posted by mazdaspeed7' date='Aug 9 2003, 07:01 PM
[quote name='pengaru' date='Aug 9 2003, 10:50 AM'] [quote name='mazdaspeed7' date='Aug 9 2003, 02:39 PM'] [quote name='pengaru' date='Aug 8 2003, 11:58 PM'] first and last time? Have you had to replace the ball joints on the front A arms yet?
what is the reason for saying S5's don't like BP?
what is the reason for saying S5's don't like BP?
hrm, thats just one specific case, i'm not sure how conclusive that is as far as S5's hating BP's in general.
Are you wiring them open or just opening them at high rpm? safc or anything? [/quote]
The problem is my afm gets maxed out before it gets into the powerband. S5's seem to have a problem with that. Ive seen small SP motors with bolt ons hitting 95% of the max reading on the afm. A s-afc or wont do any good because the computer isnt mapped for the airflow that a BP uses.
I have my ports wired closed now, running on 4 ports only... [/quote]
considered afm modifications if it truely is getting maxed out?
Super Moderator
Joined: Sep 2002
Posts: 2,763
From: Savannah, Ga
Originally Posted by pengaru' date='Aug 9 2003, 12:13 PM
[quote name='mazdaspeed7' date='Aug 9 2003, 07:01 PM'] [quote name='pengaru' date='Aug 9 2003, 10:50 AM'] [quote name='mazdaspeed7' date='Aug 9 2003, 02:39 PM'] [quote name='pengaru' date='Aug 8 2003, 11:58 PM'] first and last time? Have you had to replace the ball joints on the front A arms yet?
what is the reason for saying S5's don't like BP?
what is the reason for saying S5's don't like BP?
hrm, thats just one specific case, i'm not sure how conclusive that is as far as S5's hating BP's in general.
Are you wiring them open or just opening them at high rpm? safc or anything? [/quote]
The problem is my afm gets maxed out before it gets into the powerband. S5's seem to have a problem with that. Ive seen small SP motors with bolt ons hitting 95% of the max reading on the afm. A s-afc or wont do any good because the computer isnt mapped for the airflow that a BP uses.
I have my ports wired closed now, running on 4 ports only... [/quote]
considered afm modifications if it truely is getting maxed out? [/quote]
You cant modify S5 afm's
Senior Member
Joined: Aug 2003
Posts: 448
From: Portland Oregon
MS, what do you think about using that BPed motor with a ECO/Manifold set-up like Pengaru? IDA might be better but the DCOE would allow you to have good low RPM since it still has port actuarotrs.
Sorry for digging this up.
Sorry for digging this up.
Super Moderator
Joined: Sep 2002
Posts: 2,763
From: Savannah, Ga
I dont think it will work very well. The runner will be a problem. You have 2 ports, and DRASTICALLY different port timings sharing the same runner. The seperate pulses are going to interfere with each other in the runner, and reduce power, and I expect thats one of the main reasons my car ran like **** with the aux ports open.
I think to pull it off, you will need 6 seperate runners, and no less than 3 throttle bodies.
It would be simpler and make more power to take a 4 port, half bridge it, and set it up so the secondary ports open after a certain rpm.
I think to pull it off, you will need 6 seperate runners, and no less than 3 throttle bodies.
It would be simpler and make more power to take a 4 port, half bridge it, and set it up so the secondary ports open after a certain rpm.
Super Moderator
Joined: Sep 2002
Posts: 2,763
From: Savannah, Ga
Originally Posted by j9fd3s' date='Aug 31 2003, 04:05 PM
why dont you put an s4 afm into it? its compatible
mike
mike