7MGFORCE Posted November 28, 2008 Share Posted November 28, 2008 background. I been a "supra guy" for about 4 years now and know alot about the 7mgte modding. from basic to too much lol.(87-92 supra/mk3) anyways not to long ago i found out about the Z and was trilled that i could fit a 7m wich i love and wieght atleast 1000lbs less. so i hop on the boat and found a 74 260z project. it was basically a shell. so heres my problem. i know nothing about these cars. i want to upgrade the fuel pump to support 400whp after researching i couldnt find what i need. 1. based on what ive read a inline walbro gsl392 or 255 lph pump would support 400whp.? who sells a kit? i tried ebay but all they have is stock. 2. what other upgrade will i need/will stock lines hold? 3. from my understanding the fuel pump is outside instead of an intank like the supra. so will i need to do anything to the tank? overall i guess im just really asking what do i need to to do/upgrade to support 400whp. this will be used for street driving so drag racing here and there BUT NOTHING extreme. ps. i know the bits and pieces on the fuel need on the motor i just need to know about the tank/pump part. any help would be great thank you Quote Link to comment Share on other sites More sharing options...
jc052685 Posted November 29, 2008 Share Posted November 29, 2008 background. I been a "supra guy" for about 4 years now and know alot about the 7mgte modding. from basic to too much lol.(87-92 supra/mk3) anyways not to long ago i found out about the Z and was trilled that i could fit a 7m wich i love and wieght atleast 1000lbs less. so i hop on the boat and found a 74 260z project. it was basically a shell. so heres my problem. i know nothing about these cars. i want to upgrade the fuel pump to support 400whp after researching i couldnt find what i need. 1. based on what ive read a inline walbro gsl392 or 255 lph pump would support 400whp.? who sells a kit? i tried ebay but all they have is stock. 2. what other upgrade will i need/will stock lines hold? 3. from my understanding the fuel pump is outside instead of an intank like the supra. so will i need to do anything to the tank? overall i guess im just really asking what do i need to to do/upgrade to support 400whp. this will be used for street driving so drag racing here and there BUT NOTHING extreme. ps. i know the bits and pieces on the fuel need on the motor i just need to know about the tank/pump part. any help would be great thank you http://www.google.com/products?q=walbro+255+external&btnG=Search+Products&show=dd Took 2 seconds to find. think they are suposed to be good for like 500whp. That should be it. Several have made well over 400whp on the factory fuel lines. The tank is not baffled for fuel injection systems. So either keep the tank over 1/2 full at all times or swap to a 75 280z tank. Of course there is always building your ownn baffle or go with a fuel cell. Quote Link to comment Share on other sites More sharing options...
7MGFORCE Posted November 29, 2008 Author Share Posted November 29, 2008 oh okay lol i was searching for 240z/260z fuel pump lol. im surprice to hear that the stock feed/return lines could support that amount of whp. but thats good to hear and a surge tank will solve that "baffled" problem right? i cant find those 75-76 fuel tank. i was thinking on making one like this http://forums.hybridz.org/showthread.php?t=122978&highlight=surge+tank what would you guys recomend using as the feeder fump? and what filter do you guys run? Quote Link to comment Share on other sites More sharing options...
7MGFORCE Posted November 29, 2008 Author Share Posted November 29, 2008 will this filter work? http://store.summitracing.com/partdetail.asp?part=RUS%2D650103&view=1&N=700+150+4294925239+4294852562+ for the high pressured side? and can i use a carb filter type for the low pressure pump? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.