Easy flap fix
02-03-2008, 02:57 PM
#1
Advanced
Thread Starter
Join Date: Jan 2007
Location: Portugal
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
Easy flap fix
Yesterday I read a thread started by Leftetris about a TB job. In it it was mentioned the intake flap.
My 928 has the flap NOK. I know that for some time but I did not have the opportunity to change the actuator. Knowing all that has to be done to reach it I will need a month.
But on this thread Mark Kibort mentioned his racing car has the flap locked on open position. I never thought about that. My idea was that the flap would be essential to low RPM.
So I did the following. Make some small changes on a M10 nut and fix it to the upper end of the flap axis. This way I was able to lock the flap open without much truble.
So the surprise is that I don´t see a difference at low RPM but a good improvement at upper RPM. Excellent. The car is much better this way.
My 928 has the flap NOK. I know that for some time but I did not have the opportunity to change the actuator. Knowing all that has to be done to reach it I will need a month.
But on this thread Mark Kibort mentioned his racing car has the flap locked on open position. I never thought about that. My idea was that the flap would be essential to low RPM.
So I did the following. Make some small changes on a M10 nut and fix it to the upper end of the flap axis. This way I was able to lock the flap open without much truble.
So the surprise is that I don´t see a difference at low RPM but a good improvement at upper RPM. Excellent. The car is much better this way.
02-03-2008, 04:43 PM
#2
Rennlist Member
Just connecting the vacuum line directly to the vacuum booster is a much easier fix! no tie wraps, nuts, cables, etc.
you would never want to have it closed, unless you never wanted to accelerate with max potential pasted 3700rpm.
mk
you would never want to have it closed, unless you never wanted to accelerate with max potential pasted 3700rpm.
mk
Yesterday I read a thread started by Leftetris about a TB job. In it it was mentioned the intake flap.
My 928 has the flap NOK. I know that for some time but I did not have the opportunity to change the actuator. Knowing all that has to be done to reach it I will need a month.
But on this thread Mark Kibort mentioned his racing car has the flap locked on open position. I never thought about that. My idea was that the flap would be essential to low RPM.
So I did the following. Make some small changes on a M10 nut and fix it to the upper end of the flap axis. This way I was able to lock the flap open without much truble.
So the surprise is that I don´t see a difference at low RPM but a good improvement at upper RPM. Excellent. The car is much better this way.
My 928 has the flap NOK. I know that for some time but I did not have the opportunity to change the actuator. Knowing all that has to be done to reach it I will need a month.
But on this thread Mark Kibort mentioned his racing car has the flap locked on open position. I never thought about that. My idea was that the flap would be essential to low RPM.
So I did the following. Make some small changes on a M10 nut and fix it to the upper end of the flap axis. This way I was able to lock the flap open without much truble.
So the surprise is that I don´t see a difference at low RPM but a good improvement at upper RPM. Excellent. The car is much better this way.
02-03-2008, 05:19 PM
#4
Race Director
Thats a good solution for busted flappy actuators (can't hold vacuum)..... MK had some power charts....you do loose a touch under 4k....but more than make up for it above that!
02-04-2008, 12:37 AM
#5
Rennlist Member
02-04-2008, 04:56 AM
#6
Advanced
Thread Starter
Join Date: Jan 2007
Location: Portugal
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
How about your car, does it work fine as a race car?
I thought about buying a GT to prepare it for racing. It looks like a good idea since I have some know-how about the car. The bad side must be the price for spares.
How do you handle it comparing with a 911?