I had my car re mapped yesturday and need to upgrade my fuel pump as the one init is original.. A freind of mine has given me his old uprated one but wanted some advise to see if it's any good for me.. It's a unisia jecs a42h24 020 3414n

Thanks
Ollie

 

Well, the recommended are the Walbro 255 or the HRC equivalent.

 

On thanks.. But will this new pump I have do untill I get a Walbro 255 or is it no better than the original one I have??

 

Sorry, I cant help you on that, Unisia JECS brings up a load of jap comapny info on google but thats it.

 

Ok thank you.. Yea that's the problem I had.. Googled it but so much info came up and didn't give me the anwer I needed lol

 

Walbro 255 is the ubiquitous choice. It's its VFM which is the reason.

But there was a thread on here which showed a graph of, when at higher fuel demand, the voltages tailed off alarmingly i.e. just when you don't need it too! If it's to be believed, then that's not good i.e. a potential for melted pistons/big end failure through det.

The HRC's graph, by comparison, didn't tail off no where near as bad.


That said, I have a Walbo 255 on my 384bhp STi5... and also had it on my previous MY93 WRX running 282bhp. I had no issues, running-wise.

 

Disagree here, don't bother with a Walbro. Get a decent one. Pays dividens in the long run

Here

http://www.rogerclarkmotorsport.co.u...productID=2680

 

http://i235.photobucket.com/albums/e.../walbro045.jpg

taken from this guide --- have a look !!

http://www.rexnet.com.au/forum/index...-installation/

 

Thanks for all the info.. Well I've found out that the unisia jecs pump is defo no good as near standard so I'm goin to defently get a walbro 255 as advised by the guy who did my map!!
Thanks again for all your guys info