Thread: sr20ve intake manifold and the top feed fuel rail and IACC does not fit

why use top feed when there's so many options for sidefeed?

Get a theromospacer from OutLaw or any other company and that should give it enough space.


Price, performance and selection all favor top feed over side feed.

the topfeed are more suitable for the racing. the top feeds are more reliable.

I will do my best to make it work.

because the biggest side feeds are 850cc
lets say your like me and 850cc is not big enough then u will need to go top feed
im using 2000cc injectors and they only come in top feed


pleas explain how they are more reliable ?

I've only ever seen 1 side feed fail. Ever. And it was on a 1991 maxima with 220K miles on it.

how did it fail? was it a blockage? if so its not the injectors fault

If you're looking for big power topfeed is the way to go. If you want to settle for maybe around 400hp then you can go side feed but you will spend alot more than what it will cost for what you need to go topfeed. If you wanted to run E85 topfeed is the only way to go. I'm running 1600cc's topfeed with E85.

kevin, I dont get why you say 400 WHP is tops on side feed. That makes no sense.

370cc injs will net 260 WHP no problem, which is a fact. Logic states 740cc injs being twice the size will net 520 WHP.

850cc SARD injs will put out 590 WHP.

All these figures are at 3bar. You calculate 4 bar into the mix and 740cc injs are 600 WHP and 850cc SARDs are at 680 WHP.

Ihave seen many SERs on 740cc injs in the 490-560 WHP range. Even some people you know.