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throw it in the bin :D

they are a prick to tune as they change the rate of rising pressure depending on fuel temp.

ie..one minuite it will rise it say 1.2 times then change gears and it will go 1.3 or 1.4 with the same boost.

they are generally reserved for the bandaid fix for small injectors :laugh:

lows_13 - some of your questions lately i think are telling me you need to have a read of a good website

www.howstuffworks.com

I doubt you need a pressure reg.

Basically as t04 said.. its just to get you over the line if you dont wanna fork out for injectors.

That is true, all factory turbo engines have rising rate regs. the only differnce is that the after market regs allow you to set the base fuel pressure, the rest happens on its own. you can buy 1:1 or 2:1 regs depending on your application but should only be used in conjuction with a fully programmable ECU. Mildly modified cars will not need one unless you are trying to get away without replacing injectors that are too small for application, but note that if you increase fuel pressure to richen mixture at high revs under increased boost pressures, you also fatten up mixture at idle & cruise. Very primative way to solve problem.

It easy to search and read previous posts, the hard part is determining which people actually know what there talking about.

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