mark d chip? injectors needed

[MN325ix]

im thinkin about getting the 91 octane chip. is a bigger fuel pump needed for the stock injectors? i do believe there 14lb... correct me if thats not stock. thanks

[88e30is]

Your stock fuel pump will be fine.

Edit: Go with the 19lb injectors.

[xLibelle]

MAN... was a BEAUTIFUL set up due to end this weekend and i didnt see the Buy It Now, mother f'er!!!!

[88e30is]

Also go for the e30 M3 maf. Heard that combo is really nice. I have plans to do that this summer. I already have the chip and injectors just waiting for work to pick up to grab a maf.

[ZM Blue Devil]

dont need a maf(first time im hearing the m3 as an option, usually you can put in the m30) but the chip and injectors are plenty. You will not believe the results.

[88e30is]

Sorry ment the m30 maf.

[MN325ix]

where can i get new 19lb injectors? (cheapest)

[88e30is]

Its a BMW! Nothing is going to be cheap.

But if you insist on being a tight wad.......Ebay.

[MN325ix]

no... cheap meaning good quality but lower price,

[MN325ix]

other than the 7000k rev lim. does the 19lb 93 octane chip put out more horse power?or go with the 19lb 91 octane chip cause i can run 93 and 91 in it???

[nando]

Its a BMW! Nothing is going to be cheap.

But if you insist on being a tight wad.......Ebay.

uh, they are injectors, and you could run about 15 billion different varieties in your E30. Nothing BMW specific about them. ;)

ebay is fine, just make sure they are design 3 or newer.

and for the last time, E30s never had MAFs, neither did M30s.

[Wh33lhop]

Do the 14lbers really run a high duty cycle just a little past stock power levels? How much of a difference can you expect with 19lbers and a mark d as opposed to stock injectors and a mark d?

[88e30is]

uh, they are injectors, and you could run about 15 billion different varieties in your E30. Nothing BMW specific about them. ;)

I am just sick of people wanting to half ass stuff and go the cheap route then bitch when it fails.

and for the last time, E30s never had MAFs, neither did M30s.

I'm sorry, MAF=AFM my bad. Dyslexia on my part.

[decay]

just picked up 4 24lb/hr's from fiveomotorsport.com - about $180 for the set, brand new.

this page helped me out when i was hunting for something with the right rate/fuel pressure:

http://meggala.com/injectors.htm

[Wh33lhop]

Do the 14lbers really run a high duty cycle just a little past stock power levels? How much of a difference can you expect with 19lbers and a mark d as opposed to stock injectors and a mark d?

After doing a bit of searching it looks like it's more about injector design than injector size. Single pintle stock injectors have a crappy spray pattern and are probably old and clogged after 20 years of use not to mention intrinsically noisy, 17.5lb/hr M50/S50 injectors as well as 19lb/hr mustang injectors are 4 pintle (more efficient spray pattern), quieter and newer. That about sum it up?