2.4L FP Black DBB (Twinscroll) S3 cams E85 31psi
Glad you're happy with it Kris. When you get used to this we can turn it up a little. Not peak boost increase, but a linear 31psi across to net another 30whp or so.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
I don't have access to my graphs from FP black+magnus IM days, but with cam adjustments you could work out any spool issues. But let's be real, if you have a 2.4L and an FP Black and you aren't getting good response you have bigger issues as long as the compressor eventually feeds the head.
Glad you're happy with it Kris. When you get used to this we can turn it up a little. Not peak boost increase, but a linear 31psi across to net another 30whp or so.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
Glad you're happy with it Kris. When you get used to this we can turn it up a little. Not peak boost increase, but a linear 31psi across to net another 30whp or so.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
Evolving Member
Joined: Dec 2013
Posts: 195
Likes: 4
From: D
Glad you're happy with it Kris. When you get used to this we can turn it up a little. Not peak boost increase, but a linear 31psi across to net another 30whp or so.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
When I was on stock oem wiring I had reservations of the pump as IDC was skyrocketing at 30psi+. Once I rewired as described above, problem solved.
Tom, you are correct with your theory. The walbro 485 pumps are very hungry. I run a dedicated 10ga wire off a relay and that seems to keep her happy.
When I was on stock oem wiring I had reservations of the pump as IDC was skyrocketing at 30psi+. Once I rewired as described above, problem solved.
When I was on stock oem wiring I had reservations of the pump as IDC was skyrocketing at 30psi+. Once I rewired as described above, problem solved.
https://www.facebook.com/29393291730...type=3&theater
It was a beautiful manifold, and well built, its just the re-positioning of the throttle body bracket caused a lot of none sense with the throttle cable randomly getting stiff, and sticking and so forth. it got me booted off the track as well when it stuck on me.
That is all fixable, but the biggest issue with aftermarket intake manifolds is just in general they are a PITA to work with.
They do of course outperform any kind of modified stock OEM manifold though as one would expect.
Tom, you are correct with your theory. The walbro 485 pumps are very hungry. I run a dedicated 10ga wire off a relay and that seems to keep her happy.
When I was on stock oem wiring I had reservations of the pump as IDC was skyrocketing at 30psi+. Once I rewired as described above, problem solved.
When I was on stock oem wiring I had reservations of the pump as IDC was skyrocketing at 30psi+. Once I rewired as described above, problem solved.
[QUOTE=dana daray;11377415]To run S3 cams you need a good valvetrain in regards to springs & retainers. Never try to run a cheap valvetrain with these cams you will experience valve float after a certain RPM level among other bad things can happen also.
Either GSC stage 3 springs & retainers, or kiggly HP i prefer for S3's.
I turned off the 3 port in this car and the boost curve stayed the same, so its safe to say the car was performing like this with just a mbc only. If he can figure out why his 3 port is not turning on i can make the car hold a solid 31psi across and share those results. should pick up an additional 30whp no problem.
I turned off the 3 port in this car and the boost curve stayed the same, so its safe to say the car was performing like this with just a mbc only. If he can figure out why his 3 port is not turning on i can make the car hold a solid 31psi across and share those results. should pick up an additional 30whp no problem.
Glad you're happy with it Kris. When you get used to this we can turn it up a little. Not peak boost increase, but a linear 31psi across to net another 30whp or so.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
The injectors have plenty in them, the higher then normal IDC is due to the fuel pressure dropping off from the external walbro pumps. Walbro 400's tend to drop off at higher RPM as well. These are doing the same thing.
Maybe they are just voltage hungry. I've never personally used them so i cant comment to much.
In regards to stock intake manifold ported vs aftermarket.
Yes of course aftermarket makes a big difference with a 2.4L, but the fitment issues outweight's the benefits IMO.
I had a AMS F1i and was not happy with it at all. And thats supposed to be one of the better / easier ones to install with best fitment.
2.3 & 2.4 really gain a lot with aftermarket manifolds though for sure.
I am keeping whats on mine for the rest of the cars life. Map rev3 70mm with full blown 70mm. No complaints and works flawless.
Wanted to update Tom and others on the forum of how the car is doing. Closing in on about 2 years on this setup and I have to say there has not been any setbacks for the most part. Done a couple 1/2 mile events, drags at Infineon and even a few roadracing courses besides the daily driving and it has been enjoyable but I just purchased a spare 4g63 block and am thinking of a different setup in the future, just quite haven't figured it out yet. Stuck on the 2.0 or 2.3 with a different turbo setup, should be contacting you soon Tom
Thread
Thread Starter
Forum
Replies
Last Post
tscompusa
Evo Dyno Tuning / Results
12
Sep 23, 2021 10:41 AM
e_kobz
Evo Dyno Tuning / Results
353
Jun 20, 2017 03:25 PM
€vo!utioN
For Sale/WTB - Engine / Drivetrain / Power
5
Aug 31, 2015 05:14 PM
tscompusa
Evo Dyno Tuning / Results
4
Aug 29, 2015 09:02 AM
Gary@MellonRacing
Evo Dyno Tuning / Results
25
Dec 27, 2010 10:39 AM