Im gonna attempt to hit the dyno this sat. I made the nozzle/mix (m3, 75%meth)adjustment and I can hold HOM, boosting 23-19. I get KR between 5200 and 6000 rpms, sounds like i need a new fuel filter. I also am trying out a used K&N typhoon CAI from a friend. If i like the way it sounds/works ill buy it, otherwise its back to the stocker.
run 110 octane and that will hold hom.
__________________
JnR Performance=envied by many in norcal Sponsored by DCR
The return of the Blue Beast Coming soon
Im gonna attempt to hit the dyno this sat. I made the nozzle/mix (m3, 75%meth)adjustment and I can hold HOM, boosting 23-19. I get KR between 5200 and 6000 rpms, sounds like i need a new fuel filter. I also am trying out a used K&N typhoon CAI from a friend. If i like the way it sounds/works ill buy it, otherwise its back to the stocker.
The K&N intakes collapse under boost, do not install it. I still dont know why you are falling off boost wise. I am sure this has been asked but "boost leak test"? If that is good then you may want to switch over to another form of boost control. Other then that is it running better?
CHOUD - take your boost off of PCM control and let the WGA control the boost. You will be surprised what the result will be. I was a huge fan of PCM boost control until I realized the PCM was limiting the power.
You have to understand one thing. The PCM is designed to meet the HP goal, if it over the HP goal, it will retard the timing, if it is under the HP goal, it will make adjustment to meet that goal if possible. So you need to take it off of PCM control.
I tried it once and loved it! I havent looked back ever since...
until I get my S3 PCM.
Wrong wrong wrong wrong wrong. The PCM will try and lower the boost pressure if it see's it is over the tq target, but the only thing that retards timing is KNOCK. My car is PCM controled boost and i see mid to high 30's for timing with no HOM as it is S1.
i agree that 28 degree's of timing is low, but that is because the temps are hot from the IC. The hotter the air the less aggressive the timing curve will be. Remember hot temps more boost less timing, cold temps less boost more timing. So cool the intake charge and watch the timing come up.
Randy
I couldn't make it out to the dyno Sat. Im gonna try again this week.
Do not go unless the car is 100% in your eyes. I dont want to see you get dissapointed again from a low dyno.
You seem to have got most of the problems worked out but make sure there are no boost leak and your running 100% that will net the best gains on the dyno.
CHOUD - take your boost off of PCM control and let the WGA control the boost. You will be surprised what the result will be. I was a huge fan of PCM boost control until I realized the PCM was limiting the power.
You have to understand one thing. The PCM is designed to meet the HP goal, if it over the HP goal, it will retard the timing, if it is under the HP goal, it will make adjustment to meet that goal if possible. So you need to take it off of PCM control.
I tried it once and loved it! I havent looked back ever since...
until I get my S3 PCM.
Wrong wrong wrong wrong wrong. The PCM will try and lower the boost pressure if it see's it is over the tq target, but the only thing that retards timing is KNOCK. My car is PCM controled boost and i see mid to high 30's for timing with no HOM as it is S1.
i agree that 28 degree's of timing is low, but that is because the temps are hot from the IC. The hotter the air the less aggressive the timing curve will be. Remember hot temps more boost less timing, cold temps less boost more timing. So cool the intake charge and watch the timing come up.
Randy
I assume the pcm uses the surge valve to lower boost pressure. This may be the reason I cant seem to hold over 19lbs of boost. I dont have the funds at the moment to purchase a bop, upp, bov etc. How do i take away the pcm influence away from the surge valve while keeping it operational?
Im gonna attempt to hit the dyno this sat. I made the nozzle/mix (m3, 75%meth)adjustment and I can hold HOM, boosting 23-19. I get KR between 5200 and 6000 rpms, sounds like i need a new fuel filter. I also am trying out a used K&N typhoon CAI from a friend. If i like the way it sounds/works ill buy it, otherwise its back to the stocker.
run 110 octane and that will hold hom.
I'm not looking to make a great dyno using race gas. I know the SST is capable of more. I want to see what im making on a day to day basis with my setup using pump gas, because im not going to be using 100/110 regulary.
CHOUD - take your boost off of PCM control and let the WGA control the boost. You will be surprised what the result will be. I was a huge fan of PCM boost control until I realized the PCM was limiting the power.
You have to understand one thing. The PCM is designed to meet the HP goal, if it over the HP goal, it will retard the timing, if it is under the HP goal, it will make adjustment to meet that goal if possible. So you need to take it off of PCM control.
I tried it once and loved it! I havent looked back ever since...
until I get my S3 PCM.
Wrong wrong wrong wrong wrong. The PCM will try and lower the boost pressure if it see's it is over the tq target, but the only thing that retards timing is KNOCK. My car is PCM controled boost and i see mid to high 30's for timing with no HOM as it is S1.
i agree that 28 degree's of timing is low, but that is because the temps are hot from the IC. The hotter the air the less aggressive the timing curve will be. Remember hot temps more boost less timing, cold temps less boost more timing. So cool the intake charge and watch the timing come up.
Randy
I assume the pcm uses the surge valve to lower boost pressure. This may be the reason I cant seem to hold over 19lbs of boost. I dont have the funds at the moment to purchase a bop, upp, bov etc. How do i take away the pcm influence away from the surge valve while keeping it operational?
No the PCM, if still in control of the boost, uses the WGA to control boost. If you have unhooked your stock vacume lines from the WGA and have it run straight off the turbo there is no PCM control at all. What WGA do you use? How is it ran?
Im using the kin wga and the ptp ball and spring bc. Its routed from the turbo to bc to wga. I keep playing with wga tension and turning the bc but all i seem to get are larger spikes.
Im using the kin wga and the ptp ball and spring bc. Its routed from the turbo to bc to wga. I keep playing with wga tension and turning the bc but all i seem to get are larger spikes.
Its a very fine line from the MBC to the WGA. I still think you have a boost leak some where. Have you checked your intake manifold gasket for leaks? Get back to me on that as well as the results from your last boost leak test. Remember you have to test 5psi over your spike pressure to ensure that you have all your leaks tracked down.
Im using the kin wga and the ptp ball and spring bc. Its routed from the turbo to bc to wga. I keep playing with wga tension and turning the bc but all i seem to get are larger spikes.
Its a very fine line from the MBC to the WGA. I still think you have a boost leak some where. Have you checked your intake manifold gasket for leaks? Get back to me on that as well as the results from your last boost leak test. Remember you have to test 5psi over your spike pressure to ensure that you have all your leaks tracked down.
The last test i did was only to 25psi or so.At that time i didnt hear any leaks. I will retest again and bring the psi to 30 and see how that works.
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
Sponsored by DCR
Build it!!! Photo=Suzq044
Wood Frog's where the NW gets fast!!
Linear Mode
