GTPprix
04-24-2009, 09:33 AM
As many of you know my GXP made some GREAT power but also is WAY out of fuel system on the top end. My car more than likely makes around 570WHP right now on 8.5PSI if we could get enough fuel into the thing. I knew this would be an issue from the start however I had no idea how hard the task of finding a solution would be.
I set out to find a solution for my GXP (And all G8's) that would be:
1. SAFE
2. OEM Quality
3. Quiet
4. Had Room to grow should I get crazy.
Normally 1-3 would be hard enough, let alone throwing in 4. I'm trying to go a different route with this car; trying to make sick power but keep the NVH to a minimum. IE a CTS-V on the cheap (Sort of LOL)
So whatever solution we came up with needed to be refined AND capable, not "just enough" and not like fuel pumps/fuel in the spare tire well as seems to be common in AUS and some people here do it (Rear end collision anyone?).
The first solution I posted pics of was a full CNC made dual pump setup in a single bucket. While this solution more than likely would have worked according to the people that built it as well as the two early beta testers its loud, requires some sheet metal clearance and may not provide adequate fuel with the stock line (NO AN lines here!) and appears to have issues when running the tank low.
So we went back to the drawing board and with the help of some old friends may have reached a solution ;)
How about TWO complete OEM Fuel Pumps in one tank?! ;) Good for 1000RWHP, perfect siphoning and no more noise than the stock system. Sounds too good to be true doesn't it?
http://i381.photobucket.com/albums/oo257/gtpprix/G8%20Fuel%20System/fueltank.jpg
Well the good news is, its real however as with everything like this there IS a catch, its going to be expensive but at this point I feel at least for me personally its well worth it.
Final pricing inst set as there are some differences between the AUS parts used and the US, for instance our fuel pump for the GT/GXP is the HSV pump not the normal base pump they get in AUS (this was a shock!). This will also require adding another STOCK(ish) fuel line under the car and the appropriate connections at the engine for your particular vehicle, in my case I'm likely going to buy a CTS-V Maggie Kit passenger side fuel rail and use a Corvette angled fuel connector with some mix of line/connectors to get it from the firewall over to the passenger side.
Those of you wondering what the stock pump looks like (HSV) for the L76/LS3 have a gander :)
http://i381.photobucket.com/albums/oo257/gtpprix/G8%20Fuel%20System/DSCF0137.jpg
http://i381.photobucket.com/albums/oo257/gtpprix/G8%20Fuel%20System/DSCF0138.jpg
I'll keep this updated as we proceed but hopefully in under a month I'll have a full OEM fuel system solution to offer you guys!
I set out to find a solution for my GXP (And all G8's) that would be:
1. SAFE
2. OEM Quality
3. Quiet
4. Had Room to grow should I get crazy.
Normally 1-3 would be hard enough, let alone throwing in 4. I'm trying to go a different route with this car; trying to make sick power but keep the NVH to a minimum. IE a CTS-V on the cheap (Sort of LOL)
So whatever solution we came up with needed to be refined AND capable, not "just enough" and not like fuel pumps/fuel in the spare tire well as seems to be common in AUS and some people here do it (Rear end collision anyone?).
The first solution I posted pics of was a full CNC made dual pump setup in a single bucket. While this solution more than likely would have worked according to the people that built it as well as the two early beta testers its loud, requires some sheet metal clearance and may not provide adequate fuel with the stock line (NO AN lines here!) and appears to have issues when running the tank low.
So we went back to the drawing board and with the help of some old friends may have reached a solution ;)
How about TWO complete OEM Fuel Pumps in one tank?! ;) Good for 1000RWHP, perfect siphoning and no more noise than the stock system. Sounds too good to be true doesn't it?
http://i381.photobucket.com/albums/oo257/gtpprix/G8%20Fuel%20System/fueltank.jpg
Well the good news is, its real however as with everything like this there IS a catch, its going to be expensive but at this point I feel at least for me personally its well worth it.
Final pricing inst set as there are some differences between the AUS parts used and the US, for instance our fuel pump for the GT/GXP is the HSV pump not the normal base pump they get in AUS (this was a shock!). This will also require adding another STOCK(ish) fuel line under the car and the appropriate connections at the engine for your particular vehicle, in my case I'm likely going to buy a CTS-V Maggie Kit passenger side fuel rail and use a Corvette angled fuel connector with some mix of line/connectors to get it from the firewall over to the passenger side.
Those of you wondering what the stock pump looks like (HSV) for the L76/LS3 have a gander :)
http://i381.photobucket.com/albums/oo257/gtpprix/G8%20Fuel%20System/DSCF0137.jpg
http://i381.photobucket.com/albums/oo257/gtpprix/G8%20Fuel%20System/DSCF0138.jpg
I'll keep this updated as we proceed but hopefully in under a month I'll have a full OEM fuel system solution to offer you guys!