hello chaps.am about to buy my first saphire rwd cosworth and i just wondered would i need a bosch fuel pump on a car with these mods
stage 3 chip
t34
-31 actuator
3bar map sensor
3inch exhaust
big intercooler
green injectors
the car in question is still running the standard fuel pump.would it need changing in time
thankyou

 

If the fuel pump is healthy then a std 941 pump is fine at your power level, if needing to buy new though may as well put on a 044 pump.
If you're new to cossies, you need to do a few things first, if not already done, they are absolutely vital, a fan rewire and a fuel pump rewire, nice and easy nice and cheap.
The after making sure it is serviced etc correctly, change belt/tensioner if age/mileage unknown, then get a fuelling check done, can save a melted engine for a very small outlay, compared to a engine rebuild.
tabetha

 

thankyou for your reply mate.how can i do a fan rewire and a fuel pump rewire? ive never heard of this.also how can i get a fuel check done?
thankyou

 

If you search the site there are a few threads for fan and fuel pump wiring, But if you don't fancy attempting it your self theres a few companys that sell a loom for said application's that are almost plug and play so to speak .As for a fuel check again any half decent tuning company will be able to do this for you and shouldn't cost you to much , but vitally important that it's done . As said your really don't want to be paying to rebuild a melted engine
cheers Al

 

thankyou mate.ive just did a search and came up with this.
https://passionford.com/forum/genera...ed-please.html
is the diagram near to the bottom of the page the right diagram.?
thankyou

 

is this relay the right one to do the rewiring
http://cgi.ebay.co.uk/SIERRA-MK2-COS...item3a47910789.
thankyou

 

Yeah that's fine for your fuel pump , just make sure you use your crash switch
Cheers Al

 

what is a crash switch mate.
thankyou

 

Its the inertia switch that usually sits in the o/s a pillar that cuts the feed if you have a crash (little black thing with a push button reset on the top) I THINK

 

The "crash switch", or inertia switch is located under the spare wheel on the 2wd cossie, need to lift the wheel to access it, has a white button that pops up if tripped, it is a knock sensitive device designed to cut the fuel in the event of a major collision.
The relay pictured is a ford relay at a major over inflated price, it will do the job, just as well as a £3 brand new relay.
All you need is a standard switching relay which will have the numbers 30/85/86/87 on it, just go into a car accessory shop, another type of relay can be used called a changeover relay which will just have a extra "87a" on it, this just switches output from 87 to 87a when switched that's all so can be used no problem.
tabetha

 

thankyou for all your replies and help.i will give this ago when i get the car tommorow