Some pics
Thread Starter
Registered User
Joined: Dec 2007
Posts: 827
Likes: 0
From: Plano TX
Registered User
Joined: Feb 2008
Posts: 2,514
Likes: 0
From: Knoxville, TN
For right now.... 324.63 @ 15psi
The car made good power, but it still has more in it... We found out that the car was leaning out in the higher rpms, no matter how much Tom was adjusting the fuel maps on the computer... it was like it was running out of fuel flow, or didn't have a big enough injector.
So, we stopped tuning, and decided to look into the fuel system more, since we didn't build the whole setup, a lot of it is unknown to us. We found out later that the injectors were 630cc, and it had a Walbro fuel pump, which should be perfectly fine for the power levels this is at.
BUT THEN, we found out that apparently the original owner of the car installed the 630's because he wanted bigger injectors or something, but instead of making them run/idle right by tuning the fuel in the computer, he apparently turned the fuel pressure down all the way with the adjustable fuel pressure regulator...
So that means the injectors aren't getting enough pressure to even fire properly, let alone have enough pressure to flow to capacity. So, it is running the same as if it only had like 450cc injectors, which would make sense that it was starting to run out of fuel at around 325hp...
SO.... with that little tidbit of knowledge, we'll be revisiting the dyno once we get that all sorted out, and we'll try again.
But for the time being, here is the dyno sheet of the run...
This was only on 15psi... this thing has a LOT more in it. Once we get the fuel issue sorted out, it'll be making much more power. But with it leaning out up top, we didn't want to push it until we got that figured out and fixed. Now its figured out (or at least on the right path), we just have to get it fixed.
This puppy HAULS though
I'll have vids up tomorrow of a couple of the pulls
The car made good power, but it still has more in it... We found out that the car was leaning out in the higher rpms, no matter how much Tom was adjusting the fuel maps on the computer... it was like it was running out of fuel flow, or didn't have a big enough injector.
So, we stopped tuning, and decided to look into the fuel system more, since we didn't build the whole setup, a lot of it is unknown to us. We found out later that the injectors were 630cc, and it had a Walbro fuel pump, which should be perfectly fine for the power levels this is at.
BUT THEN, we found out that apparently the original owner of the car installed the 630's because he wanted bigger injectors or something, but instead of making them run/idle right by tuning the fuel in the computer, he apparently turned the fuel pressure down all the way with the adjustable fuel pressure regulator...
So that means the injectors aren't getting enough pressure to even fire properly, let alone have enough pressure to flow to capacity. So, it is running the same as if it only had like 450cc injectors, which would make sense that it was starting to run out of fuel at around 325hp...
SO.... with that little tidbit of knowledge, we'll be revisiting the dyno once we get that all sorted out, and we'll try again.
But for the time being, here is the dyno sheet of the run...
This was only on 15psi... this thing has a LOT more in it. Once we get the fuel issue sorted out, it'll be making much more power. But with it leaning out up top, we didn't want to push it until we got that figured out and fixed. Now its figured out (or at least on the right path), we just have to get it fixed.
This puppy HAULS though
I'll have vids up tomorrow of a couple of the pulls
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post