si90rex

do i need to upgrade fuel pump with a b16 90 crx si. if so how much of a upgrade and whats stock for a crx.

bag

you should..the stock fuel pump for crx is 79lph and the stock fuel pump in cars with the dohc vtec motors it 135lph..honda did it for a reason,,hook up a wideband o2 sensor and you will see that your engine runs lean in the high rpm range do to the fuel pump

Ass$nyper

No, Hondas fuel system will hold up to a simple B16 swap, if yours is dying and you want to upgrade by all means but the fuel and spark Honda put in holds up pretty well till you get higher in the HP levels.

njcrxsi

i got tipe-r fewl pump in my crx it flose 135lph an didnt go rite in i had 2 rig it up 2 get it 2 fit rite in crx runs lot beter now wit it an is beter den stok fewl pump most peepal dunt bother cuz dey dunt no beter but da fact iz u r runing leen at hi rpm wit stok fewl pump

jeremydde

You don't need to upgrade unless your stock pump is worn out. I have been using the stock pump for 6 years with my b16 swap and the afr under wot are 12.5. No where near lean, actually rich for an NA setup.

njcrxsi

"You don't need to upgrade unless your stock pump is worn out. I have been using the stock pump for 6 years with my b16 swap and the afr under wot are 12.5. No where near lean, actually rich for an NA setup."..
"

evin abuv 8k rpm ?

jeremydde

I've got itr cams and have taken it as high as 9000

99teggsr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brijpurt13b &raquo;</TD></TR><TR><TD CLASS="quote">i got tipe-r fewl pump in my crx it flose 135lph an didnt go rite in i had 2 rig it up 2 get it 2 fit rite in crx runs lot beter now wit it an is beter den stok fewl pump most peepal dunt bother cuz dey dunt no beter but da fact iz u r runing leen at hi rpm wit stok fewl pump</TD></TR></TABLE>


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